scc update: scv4tlm -> scv

.gitignore

@@ -30,5 +30,4 @@ language.settings.xml
 /.gdbinit
 /*.out
 /dump.json
-/*.yaml
-/*.json
+/src-gen/

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "gen_input/CoreDSL-Instruction-Set-Description"]
+	path = gen_input/CoreDSL-Instruction-Set-Description
+	url = ../CoreDSL-Instruction-Set-Description.git

CMakeLists.txt

@@ -1,23 +1,20 @@
 cmake_minimum_required(VERSION 3.12)
-###############################################################################
-#
-###############################################################################
-project(dbt-rise-tgc VERSION 1.0.0)
+
+project("riscv" VERSION 1.0.0)
 
 include(GNUInstallDirs)
 
-find_package(elfio QUIET)
-find_package(Boost COMPONENTS coroutine)
-find_package(jsoncpp)
+conan_basic_setup()
 
+find_package(Boost COMPONENTS program_options system thread filesystem REQUIRED)
 if(WITH_LLVM)
-    if(DEFINED ENV{LLVM_HOME})
-        find_path (LLVM_DIR LLVM-Config.cmake $ENV{LLVM_HOME}/lib/cmake/llvm)
-    endif(DEFINED ENV{LLVM_HOME})
-    find_package(LLVM REQUIRED CONFIG)
-    message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
-    message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
-    llvm_map_components_to_libnames(llvm_libs support core mcjit x86codegen x86asmparser)
+	if(DEFINED ENV{LLVM_HOME})
+		find_path (LLVM_DIR LLVM-Config.cmake $ENV{LLVM_HOME}/lib/cmake/llvm)
+	endif(DEFINED ENV{LLVM_HOME})
+	find_package(LLVM REQUIRED CONFIG)
+	message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
+	message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
+	llvm_map_components_to_libnames(llvm_libs support core mcjit x86codegen x86asmparser)
 endif()
 
 #Mac needed variables (adapt for your needs - http://www.cmake.org/Wiki/CMake_RPATH_handling#Mac_OS_X_and_the_RPATH)
@@ -30,168 +27,97 @@ endif()
 add_subdirectory(softfloat)
 
 # library files
-FILE(GLOB GEN_SOURCES
-    ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/iss/arch/*.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/interp/vm_*.cpp
-)
-
+FILE(GLOB RiscVSCHeaders ${CMAKE_CURRENT_SOURCE_DIR}/incl/sysc/*.h ${CMAKE_CURRENT_SOURCE_DIR}/incl/sysc/*/*.h)
+set(LIB_HEADERS ${RiscVSCHeaders} )
 set(LIB_SOURCES 
-    src/iss/plugin/instruction_count.cpp
-	src/iss/arch/tgc_c.cpp
-	src/vm/interp/vm_tgc_c.cpp
+	src/iss/tgf_b.cpp
+	src/iss/tgf_c.cpp
 	src/vm/fp_functions.cpp
-    ${GEN_SOURCES}
+	src/vm/tcc/vm_tgf_b.cpp
+	src/vm/tcc/vm_tgf_c.cpp
+	src/vm/interp/vm_tgf_b.cpp
+	src/vm/interp/vm_tgf_c.cpp
+    src/plugin/instruction_count.cpp
+    src/plugin/cycle_estimate.cpp
 )
-if(TARGET RapidJSON OR TARGET RapidJSON::RapidJSON)
-    list(APPEND LIB_SOURCES src/iss/plugin/cycle_estimate.cpp src/iss/plugin/pctrace.cpp)
-endif()
-
 if(WITH_LLVM)
-	FILE(GLOB LLVM_GEN_SOURCES
-	    ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/llvm/vm_*.cpp
-	)
-	list(APPEND LIB_SOURCES ${LLVM_GEN_SOURCES})
-endif()
-
-if(WITH_TCC)
-	FILE(GLOB TCC_GEN_SOURCES
-	    ${CMAKE_CURRENT_SOURCE_DIR}/src/vm/tcc/vm_*.cpp
-	)
-	list(APPEND LIB_SOURCES ${TCC_GEN_SOURCES})
+set(LIB_SOURCES ${LIB_SOURCES}
+	src/vm/llvm/fp_impl.cpp
+	src/vm/llvm/vm_tgf_b.cpp
+	src/vm/llvm/vm_tgf_c.cpp
+)
 endif()
 
 # Define the library
-add_library(${PROJECT_NAME} ${LIB_SOURCES})
-# list code gen dependencies
-if(TARGET ${CORE_NAME}_cpp)
-    add_dependencies(${PROJECT_NAME} ${CORE_NAME}_cpp)
-endif()
-
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-     target_compile_options(${PROJECT_NAME} PRIVATE -Wno-shift-count-overflow)
-elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
-    target_compile_options(${PROJECT_NAME} PRIVATE /wd4293)
-endif()
-target_include_directories(${PROJECT_NAME} PUBLIC src)
-target_include_directories(${PROJECT_NAME} PUBLIC src-gen)
-target_link_libraries(${PROJECT_NAME} PUBLIC softfloat scc-util Boost::coroutine)
-if(TARGET jsoncpp::jsoncpp)
-	target_link_libraries(${PROJECT_NAME} PUBLIC jsoncpp::jsoncpp)
-else()
-	target_link_libraries(${PROJECT_NAME} PUBLIC jsoncpp)
-endif()
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND BUILD_SHARED_LIBS)
-    target_link_libraries(${PROJECT_NAME} PUBLIC -Wl,--whole-archive dbt-rise-core -Wl,--no-whole-archive)
-else()
-    target_link_libraries(${PROJECT_NAME} PUBLIC dbt-rise-core)
-endif()
-if(TARGET elfio::elfio)
-    target_link_libraries(${PROJECT_NAME} PUBLIC elfio::elfio)
-else()
-    message(FATAL_ERROR "No elfio library found, maybe a find_package() call is missing")
-endif()
-if(TARGET lz4::lz4)
-    target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_LZ4)
-    target_link_libraries(${PROJECT_NAME} PUBLIC lz4::lz4)
-endif()
-if(TARGET RapidJSON::RapidJSON)
-    target_link_libraries(${PROJECT_NAME} PUBLIC RapidJSON::RapidJSON)
-elseif(TARGET RapidJSON)
-    target_link_libraries(${PROJECT_NAME} PUBLIC RapidJSON)
-endif()
-
-
-set_target_properties(${PROJECT_NAME} PROPERTIES
+add_library(riscv SHARED ${LIB_SOURCES})
+target_compile_options(riscv PRIVATE -Wno-shift-count-overflow)
+target_include_directories(riscv PUBLIC incl ../external/elfio)
+target_link_libraries(riscv PUBLIC softfloat scc-util jsoncpp)
+target_link_libraries(riscv PUBLIC -Wl,--whole-archive dbt-core -Wl,--no-whole-archive)
+set_target_properties(riscv PROPERTIES
   VERSION ${PROJECT_VERSION}
   FRAMEWORK FALSE
+  PUBLIC_HEADER "${LIB_HEADERS}" # specify the public headers
 )
-install(TARGETS ${PROJECT_NAME} COMPONENT ${PROJECT_NAME}
-  EXPORT ${PROJECT_NAME}Targets            # for downstream dependencies
-  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}  # static lib
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}  # binaries
-  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}  # shared lib
-  FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
-  PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} # headers for mac (note the different component -> different package)
-  INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}             # headers
-)
-install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/incl/iss COMPONENT ${PROJECT_NAME}
-        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # target directory
-        FILES_MATCHING # install only matched files
-        PATTERN "*.h" # select header files
-        )
-###############################################################################
-#
-###############################################################################
-project(tgc-sim)
-find_package(Boost COMPONENTS program_options thread REQUIRED)
 
-add_executable(${PROJECT_NAME} src/main.cpp)
-FILE(GLOB TGC_SOURCES  ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/iss/arch/*.cpp) 
-foreach(F IN LISTS TGC_SOURCES)
-    string(REGEX REPLACE  ".*/([^/]*)\.cpp"  "\\1" CORE_NAME_LC ${F})
-    string(TOUPPER ${CORE_NAME_LC} CORE_NAME)
-    target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
-endforeach()
+if(SystemC_FOUND)
+	add_library(riscv_sc src/sysc/core_complex.cpp)
+	target_compile_definitions(riscv_sc PUBLIC WITH_SYSTEMC) 
+	target_include_directories(riscv_sc PUBLIC ../incl ${SystemC_INCLUDE_DIRS} ${CCI_INCLUDE_DIRS})
+	
+	if(SCV_FOUND)   
+	    target_compile_definitions(riscv_sc PUBLIC WITH_SCV)
+	    target_include_directories(riscv_sc PUBLIC ${SCV_INCLUDE_DIRS})
+	endif()
+	target_link_libraries(riscv_sc PUBLIC riscv scc )
+	if(WITH_LLVM)
+		target_link_libraries(riscv_sc PUBLIC ${llvm_libs})
+	endif()
+	target_link_libraries(riscv_sc PUBLIC ${Boost_LIBRARIES} )
+	set_target_properties(riscv_sc PROPERTIES
+	  VERSION ${PROJECT_VERSION}
+	  FRAMEWORK FALSE
+	  PUBLIC_HEADER "${LIB_HEADERS}" # specify the public headers
+	)
+endif()
 
+project("riscv-sim")
+add_executable(riscv-sim src/main.cpp)
+# This sets the include directory for the reference project. This is the -I flag in gcc.
+target_include_directories(riscv-sim PRIVATE ../external/libGIS)
 if(WITH_LLVM)
-    target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_LLVM)
-    target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
+	target_compile_definitions(riscv-sim PRIVATE WITH_LLVM)
+	target_link_libraries(riscv-sim PUBLIC ${llvm_libs})
 endif()
 # Links the target exe against the libraries
-target_link_libraries(${PROJECT_NAME} PUBLIC dbt-rise-tgc)
-if(TARGET Boost::program_options)
-    target_link_libraries(${PROJECT_NAME} PUBLIC Boost::program_options)
-else()
-    target_link_libraries(${PROJECT_NAME} PUBLIC ${BOOST_program_options_LIBRARY})
-endif()
-target_link_libraries(${PROJECT_NAME} PUBLIC ${CMAKE_DL_LIBS})
+target_link_libraries(riscv-sim riscv)
+target_link_libraries(riscv-sim jsoncpp)
+target_link_libraries(riscv-sim external)
+target_link_libraries(riscv-sim ${Boost_LIBRARIES} )
 if (Tcmalloc_FOUND)
-    target_link_libraries(${PROJECT_NAME} PUBLIC ${Tcmalloc_LIBRARIES})
+    target_link_libraries(riscv-sim ${Tcmalloc_LIBRARIES})
 endif(Tcmalloc_FOUND)
 
-install(TARGETS tgc-sim
+install(TARGETS riscv riscv-sim
   EXPORT ${PROJECT_NAME}Targets            # for downstream dependencies
-  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}  # static lib
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}  # binaries
-  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}  # shared lib
-  FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
-  PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}  # headers for mac (note the different component -> different package)
+  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs   # static lib
+  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT libs   # binaries
+  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs   # shared lib
+  FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs # for mac
+  PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} COMPONENT devel   # headers for mac (note the different component -> different package)
   INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}             # headers
 )
-###############################################################################
+
+
+
 #
-###############################################################################
-project(dbt-rise-tgc_sc VERSION 1.0.0)
+# SYSTEM PACKAGING (RPM, TGZ, ...)
+# _____________________________________________________________________________
 
-include(SystemCPackage)
-if(SystemC_FOUND)
-    add_library(${PROJECT_NAME} src/sysc/core_complex.cpp)
-    target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_SYSTEMC)
-    target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
-    foreach(F IN LISTS TGC_SOURCES)
-        string(REGEX REPLACE  ".*/([^/]*)\.cpp"  "\\1" CORE_NAME_LC ${F})
-        string(TOUPPER ${CORE_NAME_LC} CORE_NAME)
-        target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
-    endforeach()
-    target_link_libraries(${PROJECT_NAME} PUBLIC dbt-rise-tgc scc)
-    if(WITH_LLVM)
-        target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
-    endif()
-    
-	set(LIB_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/sysc/core_complex.h)
-    set_target_properties(${PROJECT_NAME} PROPERTIES
-      VERSION ${PROJECT_VERSION}
-      FRAMEWORK FALSE
-      PUBLIC_HEADER "${LIB_HEADERS}" # specify the public headers
-    )
-    install(TARGETS ${PROJECT_NAME} COMPONENT ${PROJECT_NAME}
-	  EXPORT ${PROJECT_NAME}Targets            # for downstream dependencies
-	  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}  # static lib
-	  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}  # binaries
-	  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}  # shared lib
-	  FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
-	  PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/sysc   # headers for mac (note the different component -> different package)
-	  INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}             # headers
-	)    
-endif()
+#include(CPackConfig)
 
+#
+# CMAKE PACKAGING (for other CMake projects to use this one easily)
+# _____________________________________________________________________________
+
+#include(PackageConfigurator)

contrib/build.tcl

@@ -1,30 +0,0 @@
-namespace eval Specification {
-    proc buildproc { args } {
-        global env
-        variable installDir
-        variable compiler
-        variable compiler [::scsh::get_backend_compiler]
-        #  set target $machine
-        set target [::scsh::machine]
-        set linkerOptions ""
-        set preprocessorOptions ""
-        set libversion $compiler
-        switch -exact -- $target {
-            "linux" {
-            	set install_dir $::env(TGFS_INSTALL_ROOT)
-                set incldir "${install_dir}/include"
-                set libdir "${install_dir}/lib64"
-                set preprocessorOptions [concat $preprocessorOptions "-I${incldir}"]
-                # Set the Linker paths.
-                set linkerOptions [concat $linkerOptions "-Wl,-rpath,${libdir} -L${libdir} -ldbt-rise-tgc_sc"]
-            }
-            default {
-               puts stderr "ERROR: \"$target\" is not supported, [::scsh::version]"
-               return
-            }
-        }
-        ::scsh::cwr_append_ipsimbld_opts preprocessor "$preprocessorOptions"
-        ::scsh::cwr_append_ipsimbld_opts linker       "$linkerOptions"
-    }
-    ::scsh::add_build_callback [namespace current]::buildproc
-}

contrib/tgc_import.cc

@@ -1,4 +0,0 @@
-
-#include "sysc/core_complex.h"
-
-void modules() { sysc::tgfs::core_complex i_core_complex("core_complex"); }

contrib/tgc_import.tcl

@@ -1,50 +0,0 @@
-#############################################################################
-#
-#############################################################################
-proc getScriptDirectory {} {
-    set dispScriptFile [file normalize [info script]]
-    set scriptFolder [file dirname $dispScriptFile]
-    return $scriptFolder
-}
-if { $::env(SNPS_VP_PRODUCT) == "PAULTRA" } {
-    set hardware /HARDWARE/HW/HW
-} else {
-    set hardware /HARDWARE
-}
-
-set scriptDir [getScriptDirectory]
-set top_design_name core_complex
-set clocks clk_i
-set resets rst_i
-set model_prefix "i_"
-set model_postfix ""
-
-::pct::new_project
-::pct::open_library TLM2_PL
-::pct::clear_systemc_defines
-::pct::clear_systemc_include_path
-::pct::add_to_systemc_include_path $::env(TGFS_INSTALL_ROOT)/include
-::pct::set_import_protocol_generation_flag false
-::pct::set_update_existing_encaps_flag true
-::pct::set_dynamic_port_arrays_flag true
-::pct::set_import_scml_properties_flag true
-::pct::load_modules --set-category modules tgc_import.cc
-
-# Set Port Protocols correctly
-set block ${top_design_name}
-foreach clock ${clocks} {
-	::pct::set_block_port_protocol --set-category SYSTEM_LIBRARY:$block/${clock} SYSTEM_LIBRARY:CLOCK
-}
-foreach reset ${resets} {
-    ::pct::set_block_port_protocol --set-category SYSTEM_LIBRARY:$block/${reset} SYSTEM_LIBRARY:RESET
-}
-::pct::set_encap_port_array_size SYSTEM_LIBRARY:$block/local_irq_i 16
-
-# Set compile settings and look
-set block SYSTEM_LIBRARY:${top_design_name}
-::pct::set_encap_build_script $block/${top_design_name} $scriptDir/build.tcl
-::pct::set_background_color_rgb $block 255 255 255 255
-::pct::create_instance SYSTEM_LIBRARY:${top_design_name}  ${hardware} ${model_prefix}${top_design_name}${model_postfix} ${top_design_name} 
-
-# export the result as component
-::pct::export_system_library ${top_design_name}  ${top_design_name}.xml

gen_input/.gitignore

@@ -1,2 +1 @@
 /src-gen/
-/CoreDSL-Instruction-Set-Description

gen_input/TGC_C.core_desc

@@ -1,13 +0,0 @@
-import "RV32I.core_desc"
-import "RVM.core_desc"
-import "RVC.core_desc"
-
-Core TGC_C provides RV32I, Zicsr, Zifencei, RV32M, RV32IC {
-    architectural_state {
-        XLEN=32;
-        // definitions for the architecture wrapper
-        //                    XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
-        unsigned MISA_VAL = 0b01000000000000000001000100000100;
-        unsigned MARCHID_VAL = 0x80000003;
-    }
-}

gen_input/TGFS.core_desc

@@ -0,0 +1,28 @@
+import "CoreDSL-Instruction-Set-Description/RV32I.core_desc"
+import "CoreDSL-Instruction-Set-Description/RVM.core_desc"
+import "CoreDSL-Instruction-Set-Description/RVC.core_desc"
+
+Core TGF_B provides RV32I {
+	constants {
+        XLEN:=32;
+        PCLEN:=32;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000000000000000100000000;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+	}
+}
+
+Core TGF_C provides RV32I, RV32M, RV32IC {
+    constants {
+        XLEN:=32;
+        PCLEN:=32;
+        MUL_LEN:=64;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000000000001000100000100;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}

gen_input/minres_rv.core_desc

@@ -0,0 +1,74 @@
+import "RV32I.core_desc"
+import "RV64I.core_desc"
+import "RVM.core_desc"
+import "RVA.core_desc"
+import "RVC.core_desc"
+import "RVF.core_desc"
+import "RVD.core_desc"
+
+
+Core MNRV32 provides RV32I, RV32IC {
+    constants {
+        XLEN:=32;
+        PCLEN:=32;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000101000001000100000101;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}
+
+Core RV32IMAC provides RV32I, RV32M, RV32A, RV32IC {
+    constants {
+        XLEN:=32;
+        PCLEN:=32;
+        MUL_LEN:=64;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000101000001000100000101;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}
+
+Core RV32GC provides RV32I, RV32M, RV32A, RV32F, RV32D, RV32IC, RV32FC, RV32DC {
+    constants {
+        XLEN:=32;
+        FLEN:=64;
+        PCLEN:=32;
+        MUL_LEN:=64;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000101000001000100101101;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}
+
+Core RV64I provides RV64I {
+    constants {
+        XLEN:=64;
+        PCLEN:=64;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b10000000000001000000000100000000;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}
+
+Core RV64GC provides RV64I, RV64M, RV64A, RV64F, RV64D, RV32FC, RV32DC, RV64IC {
+    constants {
+        XLEN:=64;
+        FLEN:=64;
+        PCLEN:=64;
+        MUL_LEN:=128;
+        // definitions for the architecture wrapper
+        //          XL    ZYXWVUTSRQPONMLKJIHGFEDCBA
+        MISA_VAL:=0b01000000000101000001000100101101;
+        PGSIZE := 0x1000; //1 << 12;
+        PGMASK := 0xfff; //PGSIZE-1
+    }
+}
+

gen_input/templates/CORENAME.h.gtl

@@ -1,189 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017 - 2021 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- *******************************************************************************/
-<%
-import com.minres.coredsl.util.BigIntegerWithRadix
-
-def nativeTypeSize(int size){
-    if(size<=8) return 8; else if(size<=16) return 16; else if(size<=32) return 32; else return 64;
-}
-def getRegisterSizes(){
-    def regs = registers.collect{nativeTypeSize(it.size)}
-    // regs+=[32,32, 64, 64, 64, 32] // append TRAP_STATE, PENDING_TRAP, ICOUNT, CYCLE, INSTRET, INSTRUCTION
-    return regs
-}
-def getRegisterOffsets(){
-    def offset = 0
-    def offsets = []
-    getRegisterSizes().each { size ->
-        offsets<<offset
-        offset+=size/8
-    }
-    return offsets
-}
-def byteSize(int size){
-    if(size<=8) return 8;
-    if(size<=16) return 16;
-    if(size<=32) return 32;
-    if(size<=64) return 64;
-    return 128;
-}
-def getCString(def val){
-    if(val instanceof BigIntegerWithRadix)
-        return ((BigIntegerWithRadix)val).toCString()
-    else
-        return val.toString()
-}
-%>
-#ifndef _${coreDef.name.toUpperCase()}_H_
-#define _${coreDef.name.toUpperCase()}_H_
-
-#include <array>
-#include <iss/arch/traits.h>
-#include <iss/arch_if.h>
-#include <iss/vm_if.h>
-
-namespace iss {
-namespace arch {
-
-struct ${coreDef.name.toLowerCase()};
-
-template <> struct traits<${coreDef.name.toLowerCase()}> {
-
-    constexpr static char const* const core_type = "${coreDef.name}";
-    
-    static constexpr std::array<const char*, ${registers.size}> reg_names{
-        {"${registers.collect{it.name}.join('", "')}"}};
- 
-    static constexpr std::array<const char*, ${registers.size}> reg_aliases{
-        {"${registers.collect{it.alias}.join('", "')}"}};
-
-    enum constants {${constants.collect{c -> c.name+"="+getCString(c.value)}.join(', ')}};
-
-    constexpr static unsigned FP_REGS_SIZE = ${constants.find {it.name=='FLEN'}?.value?:0};
-
-    enum reg_e {
-        ${registers.collect{it.name}.join(', ')}, NUM_REGS
-    };
-
-    using reg_t = uint${addrDataWidth}_t;
-
-    using addr_t = uint${addrDataWidth}_t;
-
-    using code_word_t = uint${addrDataWidth}_t; //TODO: check removal
-
-    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;
-
-    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;
-
-    static constexpr std::array<const uint32_t, ${getRegisterSizes().size}> reg_bit_widths{
-        {${getRegisterSizes().join(',')}}};
-
-    static constexpr std::array<const uint32_t, ${getRegisterOffsets().size}> reg_byte_offsets{
-        {${getRegisterOffsets().join(',')}}};
-
-    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);
-
-    enum sreg_flag_e { FLAGS };
-
-    enum mem_type_e { ${spaces.collect{it.name}.join(', ')} };
-    
-    enum class opcode_e : unsigned short {<%instructions.eachWithIndex{instr, index -> %>
-        ${instr.instruction.name} = ${index},<%}%>
-        MAX_OPCODE
-    };
-};
-
-struct ${coreDef.name.toLowerCase()}: public arch_if {
-
-    using virt_addr_t = typename traits<${coreDef.name.toLowerCase()}>::virt_addr_t;
-    using phys_addr_t = typename traits<${coreDef.name.toLowerCase()}>::phys_addr_t;
-    using reg_t =  typename traits<${coreDef.name.toLowerCase()}>::reg_t;
-    using addr_t = typename traits<${coreDef.name.toLowerCase()}>::addr_t;
-
-    ${coreDef.name.toLowerCase()}();
-    ~${coreDef.name.toLowerCase()}();
-
-    void reset(uint64_t address=0) override;
-
-    uint8_t* get_regs_base_ptr() override;
-
-    inline uint64_t get_icount() { return icount; }
-
-    inline bool should_stop() { return interrupt_sim; }
-
-    inline uint64_t stop_code() { return interrupt_sim; }
-
-    inline phys_addr_t v2p(const iss::addr_t& addr){
-        if (addr.space != traits<${coreDef.name.toLowerCase()}>::MEM || addr.type == iss::address_type::PHYSICAL ||
-                addr_mode[static_cast<uint16_t>(addr.access)&0x3]==address_type::PHYSICAL) {
-            return phys_addr_t(addr.access, addr.space, addr.val&traits<${coreDef.name.toLowerCase()}>::addr_mask);
-        } else
-            return virt2phys(addr);
-    }
-
-    virtual phys_addr_t virt2phys(const iss::addr_t& addr);
-
-    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }
-
-    inline uint32_t get_last_branch() { return last_branch; }
-
-
-#pragma pack(push, 1)
-    struct ${coreDef.name}_regs {<%
-        registers.each { reg -> if(reg.size>0) {%> 
-        uint${byteSize(reg.size)}_t ${reg.name} = 0;<%
-        }}%>
-    } reg;
-#pragma pack(pop)
-    uint32_t trap_state = 0, pending_trap = 0;
-    uint64_t icount = 0;
-    uint64_t cycle = 0;
-    uint64_t instret = 0;
-    uint32_t instruction = 0;
-    uint32_t last_branch = 0;
-    std::array<address_type, 4> addr_mode;
-    
-    uint64_t interrupt_sim=0;
-<%
-def fcsr = registers.find {it.name=='FCSR'}
-if(fcsr != null) {%>
-    uint${fcsr.size}_t get_fcsr(){return reg.FCSR;}
-    void set_fcsr(uint${fcsr.size}_t val){reg.FCSR = val;}      
-<%} else { %>
-    uint32_t get_fcsr(){return 0;}
-    void set_fcsr(uint32_t val){}
-<%}%>
-};
-
-}
-}            
-#endif /* _${coreDef.name.toUpperCase()}_H_ */

gen_input/templates/CORENAME_cyles.txt.gtl

@@ -1,12 +0,0 @@
-{
-	"${coreDef.name}" : [<%instructions.eachWithIndex{instr,index -> %>${index==0?"":","}
-		{
-			"name"  :   "${instr.name}",
-			"size"  :   ${instr.length},
-			"encoding": "${instr.encoding}",
-            "mask":     "${instr.mask}",
-			"branch":   ${instr.modifiesPC},
-			"delay" :   ${instr.isConditional?"[1,1]":"1"}
-		}<%}%>
-	]
-}

gen_input/templates/CORENAME_decoder.cpp.gtl

@@ -1,86 +0,0 @@
-#include "${coreDef.name.toLowerCase()}.h"
-#include <vector>
-#include <array>
-#include <cstdlib>
-#include <algorithm>
-
-namespace iss {
-namespace arch {
-namespace {
-// according to
-// https://stackoverflow.com/questions/8871204/count-number-of-1s-in-binary-representation
-#ifdef __GCC__
-constexpr size_t bit_count(uint32_t u) { return __builtin_popcount(u); }
-#elif __cplusplus < 201402L
-constexpr size_t uCount(uint32_t u) { return u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111); }
-constexpr size_t bit_count(uint32_t u) { return ((uCount(u) + (uCount(u) >> 3)) & 030707070707) % 63; }
-#else
-constexpr size_t bit_count(uint32_t u) {
-    size_t uCount = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
-    return ((uCount + (uCount >> 3)) & 030707070707) % 63;
-}
-#endif
-
-using opcode_e = traits<${coreDef.name.toLowerCase()}>::opcode_e;
-
-/****************************************************************************
- * start opcode definitions
- ****************************************************************************/
-struct instruction_desriptor {
-    size_t length;
-    uint32_t value;
-    uint32_t mask;
-    opcode_e op;
-};
-
-const std::array<instruction_desriptor, ${instructions.size}> instr_descr = {{
-     /* entries are: size, valid value, valid mask, function ptr */<%instructions.each{instr -> %>
-    {${instr.length}, ${instr.encoding}, ${instr.mask}, opcode_e::${instr.instruction.name}},<%}%>
-}};
-
-}
-
-template<>
-struct instruction_decoder<${coreDef.name.toLowerCase()}> {
-    using opcode_e = traits<${coreDef.name.toLowerCase()}>::opcode_e;
-    using code_word_t=traits<${coreDef.name.toLowerCase()}>::code_word_t;
-
-    struct instruction_pattern {
-        uint32_t value;
-        uint32_t mask;
-        opcode_e id;
-    };
-
-    std::array<std::vector<instruction_pattern>, 4> qlut;
-
-    template<typename T>
-    unsigned decode_instruction(T);
-
-    instruction_decoder() {
-        for (auto instr : instr_descr) {
-            auto quadrant = instr.value & 0x3;
-            qlut[quadrant].push_back(instruction_pattern{instr.value, instr.mask, instr.op});
-        }
-        for(auto& lut: qlut){
-            std::sort(std::begin(lut), std::end(lut), [](instruction_pattern const& a, instruction_pattern const& b){
-                return bit_count(a.mask) < bit_count(b.mask);
-            });
-        }
-    }
-};
-
-template<>
-unsigned instruction_decoder<${coreDef.name.toLowerCase()}>::decode_instruction<traits<${coreDef.name.toLowerCase()}>::code_word_t>(traits<${coreDef.name.toLowerCase()}>::code_word_t instr){
-    auto res = std::find_if(std::begin(qlut[instr&0x3]), std::end(qlut[instr&0x3]), [instr](instruction_pattern const& e){
-        return !((instr&e.mask) ^ e.value );
-    });
-    return static_cast<unsigned>(res!=std::end(qlut[instr&0x3])? res->id : opcode_e::MAX_OPCODE);
-}
-
-
-std::unique_ptr<instruction_decoder<${coreDef.name.toLowerCase()}>> traits<${coreDef.name.toLowerCase()}>::get_decoder(){
-    return std::make_unique<instruction_decoder<${coreDef.name.toLowerCase()}>>();
-}
-
-}
-}

gen_input/templates/CORENAME_instr.yaml.gtl

@@ -1,17 +0,0 @@
-<% def getInstructionGroups() {
-    def instrGroups = [:]
-    instructions.each {
-        def groupName = it['instruction'].eContainer().name
-        if(!instrGroups.containsKey(groupName)) {
-            instrGroups[groupName]=[]
-        }
-        instrGroups[groupName]+=it;
-    }
-    instrGroups
-}%><%getInstructionGroups().each{name, instrList -> %>
-${name}: <% instrList.findAll{!it.instruction.name.startsWith("__")}.each { %>
-  - ${it.instruction.name}:
-    encoding: ${it.encoding}
-    mask: ${it.mask}<%if(it.attributes.size) {%>
-    attributes: ${it.attributes}<%}}}%>
-

gen_input/templates/interp/CORENAME.cpp.gtl

@@ -1,319 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2021 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- *******************************************************************************/
-<%
-import com.minres.coredsl.util.BigIntegerWithRadix
-
-def nativeTypeSize(int size){
-    if(size<=8) return 8; else if(size<=16) return 16; else if(size<=32) return 32; else return 64;
-}
-%>
-#include <iss/debugger/gdb_session.h>
-#include <iss/debugger/server.h>
-#include <iss/arch/${coreDef.name.toLowerCase()}.h>
-#include <iss/arch/riscv_hart_m_p.h>
-#include <iss/iss.h>
-#include <iss/interp/vm_base.h>
-#include <util/logging.h>
-#include <sstream>
-#include <boost/coroutine2/all.hpp>
-#include <functional>
-
-#ifndef FMT_HEADER_ONLY
-#define FMT_HEADER_ONLY
-#endif
-#include <fmt/format.h>
-
-#include <array>
-#include <iss/debugger/riscv_target_adapter.h>
-
-namespace iss {
-namespace interp {
-namespace ${coreDef.name.toLowerCase()} {
-using namespace iss::arch;
-using namespace iss::debugger;
-using namespace std::placeholders;
-
-template <typename ARCH> class vm_impl : public iss::interp::vm_base<ARCH> {
-public:
-    using traits = arch::traits<ARCH>;
-    using super       = typename iss::interp::vm_base<ARCH>;
-    using virt_addr_t = typename super::virt_addr_t;
-    using phys_addr_t = typename super::phys_addr_t;
-    using code_word_t = typename super::code_word_t;
-    using addr_t      = typename super::addr_t;
-    using reg_t       = typename traits::reg_t;
-    using mem_type_e  = typename traits::mem_type_e;
-    using opcode_e    = typename traits::opcode_e;
-    
-    vm_impl();
-
-    vm_impl(ARCH &core, unsigned core_id = 0, unsigned cluster_id = 0);
-
-    void enableDebug(bool enable) { super::sync_exec = super::ALL_SYNC; }
-
-    target_adapter_if *accquire_target_adapter(server_if *srv) override {
-        debugger_if::dbg_enabled = true;
-        if (super::tgt_adapter == nullptr)
-            super::tgt_adapter = new riscv_target_adapter<ARCH>(srv, this->get_arch());
-        return super::tgt_adapter;
-    }
-
-protected:
-    using this_class = vm_impl<ARCH>;
-    using compile_ret_t = virt_addr_t;
-    using compile_func = compile_ret_t (this_class::*)(virt_addr_t &pc, code_word_t instr);
-
-    inline const char *name(size_t index){return index<traits::reg_aliases.size()?traits::reg_aliases[index]:"illegal";}
-
-    typename arch::traits<ARCH>::opcode_e decode_inst_id(code_word_t instr);
-    virt_addr_t execute_inst(finish_cond_e cond, virt_addr_t start, uint64_t icount_limit) override;
-
-    // some compile time constants
-    // enum { MASK16 = 0b1111110001100011, MASK32 = 0b11111111111100000111000001111111 };
-    enum { MASK16 = 0b1111111111111111, MASK32 = 0b11111111111100000111000001111111 };
-    enum { EXTR_MASK16 = MASK16 >> 2, EXTR_MASK32 = MASK32 >> 2 };
-    enum {
-        LUT_SIZE = 1 << util::bit_count(static_cast<uint32_t>(EXTR_MASK32)),
-        LUT_SIZE_C = 1 << util::bit_count(static_cast<uint32_t>(EXTR_MASK16))
-    };
-
-    std::array<compile_func, LUT_SIZE> lut;
-
-    std::array<compile_func, LUT_SIZE_C> lut_00, lut_01, lut_10;
-    std::array<compile_func, LUT_SIZE> lut_11;
-
-    struct instruction_pattern {
-        uint32_t value;
-        uint32_t mask;
-        typename arch::traits<ARCH>::opcode_e id;
-    };
-
-    std::array<std::vector<instruction_pattern>, 4> qlut;
-
-    inline void raise(uint16_t trap_id, uint16_t cause){
-        auto trap_val =  0x80ULL << 24 | (cause << 16) | trap_id;
-        this->core.trap_state = trap_val;
-        this->template get_reg<uint32_t>(traits::NEXT_PC) = std::numeric_limits<uint32_t>::max();
-    }
-
-    inline void leave(unsigned lvl){
-        this->core.leave_trap(lvl);
-    }
-
-    inline void wait(unsigned type){
-        this->core.wait_until(type);
-    }
-
-    using yield_t = boost::coroutines2::coroutine<void>::push_type;
-    using coro_t = boost::coroutines2::coroutine<void>::pull_type;
-    std::vector<coro_t> spawn_blocks;
-
-    template<unsigned W, typename U, typename S = typename std::make_signed<U>::type>
-    inline S sext(U from) {
-        auto mask = (1ULL<<W) - 1;
-        auto sign_mask = 1ULL<<(W-1);
-        return (from & mask) | ((from & sign_mask) ? ~mask : 0);
-    }
-    
-    inline void process_spawn_blocks() {
-        if(spawn_blocks.size()==0) return;
-        std::swap(super::ex_info.branch_taken, super::ex_info.hw_branch_taken);
-        for(auto it = std::begin(spawn_blocks); it!=std::end(spawn_blocks);)
-             if(*it){
-                 (*it)();
-                 ++it;
-             } else
-                 spawn_blocks.erase(it);
-        std::swap(super::ex_info.branch_taken, super::ex_info.hw_branch_taken);
-    }
-<%functions.each{ it.eachLine { %>
-    ${it}<%}%>
-<%}%>
-private:
-    /****************************************************************************
-     * start opcode definitions
-     ****************************************************************************/
-    struct InstructionDesriptor {
-        size_t length;
-        uint32_t value;
-        uint32_t mask;
-        typename arch::traits<ARCH>::opcode_e op;
-    };
-
-    const std::array<InstructionDesriptor, ${instructions.size}> instr_descr = {{
-         /* entries are: size, valid value, valid mask, function ptr */<%instructions.each{instr -> %>
-        {${instr.length}, ${instr.encoding}, ${instr.mask}, arch::traits<ARCH>::opcode_e::${instr.instruction.name}},<%}%>
-    }};
-
-    //static constexpr typename traits::addr_t upper_bits = ~traits::PGMASK;
-    iss::status fetch_ins(virt_addr_t pc, uint8_t * data){
-        auto phys_pc = this->core.v2p(pc);
-        //if ((pc.val & upper_bits) != ((pc.val + 2) & upper_bits)) { // we may cross a page boundary
-        //    if (this->core.read(phys_pc, 2, data) != iss::Ok) return iss::Err;
-        //    if ((data[0] & 0x3) == 0x3) // this is a 32bit instruction
-        //        if (this->core.read(this->core.v2p(pc + 2), 2, data + 2) != iss::Ok) return iss::Err;
-        //} else {
-            if (this->core.read(phys_pc, 4, data) != iss::Ok)  return iss::Err;
-        //}
-        return iss::Ok;
-    }
-};
-
-template <typename CODE_WORD> void debug_fn(CODE_WORD insn) {
-    volatile CODE_WORD x = insn;
-    insn = 2 * x;
-}
-
-template <typename ARCH> vm_impl<ARCH>::vm_impl() { this(new ARCH()); }
-
-// according to
-// https://stackoverflow.com/questions/8871204/count-number-of-1s-in-binary-representation
-#ifdef __GCC__
-constexpr size_t bit_count(uint32_t u) { return __builtin_popcount(u); }
-#elif __cplusplus < 201402L
-constexpr size_t uCount(uint32_t u) { return u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111); }
-constexpr size_t bit_count(uint32_t u) { return ((uCount(u) + (uCount(u) >> 3)) & 030707070707) % 63; }
-#else
-constexpr size_t bit_count(uint32_t u) {
-    size_t uCount = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
-    return ((uCount + (uCount >> 3)) & 030707070707) % 63;
-}
-#endif
-
-template <typename ARCH>
-vm_impl<ARCH>::vm_impl(ARCH &core, unsigned core_id, unsigned cluster_id)
-: vm_base<ARCH>(core, core_id, cluster_id) {
-    unsigned id=0;
-    for (auto instr : instr_descr) {
-        auto quadrant = instr.value & 0x3;
-        qlut[quadrant].push_back(instruction_pattern{instr.value, instr.mask, instr.op});
-    }
-    for(auto& lut: qlut){
-        std::sort(std::begin(lut), std::end(lut), [](instruction_pattern const& a, instruction_pattern const& b){
-            return bit_count(a.mask) > bit_count(b.mask);
-        });
-    }
-}
-
-inline bool is_count_limit_enabled(finish_cond_e cond){
-    return (cond & finish_cond_e::COUNT_LIMIT) == finish_cond_e::COUNT_LIMIT;
-}
-
-inline bool is_jump_to_self_enabled(finish_cond_e cond){
-    return (cond & finish_cond_e::JUMP_TO_SELF) == finish_cond_e::JUMP_TO_SELF;
-}
-
-template <typename ARCH>
-typename arch::traits<ARCH>::opcode_e vm_impl<ARCH>::decode_inst_id(code_word_t instr){
-    for(auto& e: qlut[instr&0x3]){
-        if(!((instr&e.mask) ^ e.value )) return e.id;
-    }
-    return arch::traits<ARCH>::opcode_e::MAX_OPCODE;
-}
-
-template <typename ARCH>
-typename vm_base<ARCH>::virt_addr_t vm_impl<ARCH>::execute_inst(finish_cond_e cond, virt_addr_t start, uint64_t icount_limit){
-    auto pc=start;
-    auto* PC = reinterpret_cast<uint32_t*>(this->regs_base_ptr+arch::traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::PC]);
-    auto* NEXT_PC = reinterpret_cast<uint32_t*>(this->regs_base_ptr+arch::traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::NEXT_PC]);
-    auto& trap_state = this->core.trap_state;
-    auto& icount = this->core.icount;
-    auto& cycle = this->core.cycle;
-    auto& instret = this->core.instret;
-    auto& instr = this->core.instruction;
-    // we fetch at max 4 byte, alignment is 2
-    auto *const data = reinterpret_cast<uint8_t*>(&instr);
-
-    while(!this->core.should_stop() &&
-            !(is_count_limit_enabled(cond) && this->core.get_icount() >= icount_limit)){
-        if(fetch_ins(pc, data)!=iss::Ok){
-            this->do_sync(POST_SYNC, std::numeric_limits<unsigned>::max());
-            pc.val = super::core.enter_trap(std::numeric_limits<uint64_t>::max(), pc.val, 0);
-        } else {
-            if (is_jump_to_self_enabled(cond) &&
-                    (instr == 0x0000006f || (instr&0xffff)==0xa001)) throw simulation_stopped(0); // 'J 0' or 'C.J 0'
-            auto inst_id = decode_inst_id(instr);
-            // pre execution stuff
-            if(this->sync_exec && PRE_SYNC) this->do_sync(PRE_SYNC, static_cast<unsigned>(inst_id));
-            switch(inst_id){<%instructions.eachWithIndex{instr, idx -> %>
-            case arch::traits<ARCH>::opcode_e::${instr.name}: {
-                <%instr.fields.eachLine{%>${it}
-                <%}%>if(this->disass_enabled){
-                    /* generate console output when executing the command */<%instr.disass.eachLine{%>
-                    ${it}<%}%>
-                }
-                // used registers<%instr.usedVariables.each{ k,v->
-                if(v.isArray) {%>
-                auto* ${k} = reinterpret_cast<uint${nativeTypeSize(v.type.size)}_t*>(this->regs_base_ptr+arch::traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::${k}0]);<% }else{ %> 
-                auto* ${k} = reinterpret_cast<uint${nativeTypeSize(v.type.size)}_t*>(this->regs_base_ptr+arch::traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::${k}]);
-                <%}}%>// calculate next pc value
-                *NEXT_PC = *PC + ${instr.length/8};
-                // execute instruction<%instr.behavior.eachLine{%>
-                ${it}<%}%>
-                TRAP_${instr.name}:break;
-            }// @suppress("No break at end of case")<%}%>
-            default: {
-                *NEXT_PC = *PC + ((instr & 3) == 3 ? 4 : 2);
-                raise(0,  2);
-            }
-            }
-            // post execution stuff
-            process_spawn_blocks();
-            if(this->sync_exec && POST_SYNC) this->do_sync(POST_SYNC, static_cast<unsigned>(inst_id));
-            // if(!this->core.trap_state) // update trap state if there is a pending interrupt
-            //    this->core.trap_state = this->core.pending_trap;
-            // trap check
-            if(trap_state!=0){
-                super::core.enter_trap(trap_state, pc.val, instr);
-            } else {
-                icount++;
-                instret++;
-            }
-            cycle++;
-            pc.val=*NEXT_PC;
-            this->core.reg.PC = this->core.reg.NEXT_PC;
-            this->core.trap_state = this->core.pending_trap;
-        }
-    }
-    return pc;
-}
-
-}
-
-template <>
-std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreDef.name.toLowerCase()} *core, unsigned short port, bool dump) {
-    auto ret = new ${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*core, dump);
-    if (port != 0) debugger::server<debugger::gdb_session>::run_server(ret, port);
-    return std::unique_ptr<vm_if>(ret);
-}
-} // namespace interp
-} // namespace iss

gen_input/templates/interp/CORENAME_cyles.txt.gtl

@@ -0,0 +1,9 @@
+{ 
+	"${coreDef.name}" : [<%instructions.eachWithIndex{instr,index -> %>${index==0?"":","}
+		{
+			"name"  : "${instr.name}",
+			"size"  : ${instr.length},
+			"delay" : ${generator.hasAttribute(instr.instruction, com.minres.coredsl.coreDsl.InstrAttribute.COND)?[1,1]:1}
+		}<%}%>
+	]
+}

gen_input/templates/interp/incl-CORENAME.h.gtl

@@ -0,0 +1,223 @@
+/*******************************************************************************
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+<% 
+import com.minres.coredsl.coreDsl.Register
+import com.minres.coredsl.coreDsl.RegisterFile
+import com.minres.coredsl.coreDsl.RegisterAlias
+def getTypeSize(size){
+	if(size > 32) 64 else if(size > 16) 32 else if(size > 8) 16 else 8
+}
+def getOriginalName(reg){
+    if( reg.original instanceof RegisterFile) {
+    	if( reg.index != null ) {
+        	return reg.original.name+generator.generateHostCode(reg.index)
+        } else {
+        	return reg.original.name
+        }
+    } else if(reg.original instanceof Register){
+        return reg.original.name
+    }
+}
+def getRegisterNames(){
+	def regNames = []
+ 	allRegs.each { reg -> 
+		if( reg instanceof RegisterFile) {
+			(reg.range.right..reg.range.left).each{
+    			regNames+=reg.name.toLowerCase()+it
+            }
+        } else if(reg instanceof Register){
+    		regNames+=reg.name.toLowerCase()
+        }
+    }
+    return regNames
+}
+def getRegisterAliasNames(){
+	def regMap = allRegs.findAll{it instanceof RegisterAlias }.collectEntries {[getOriginalName(it), it.name]}
+ 	return allRegs.findAll{it instanceof Register || it instanceof RegisterFile}.collect{reg ->
+		if( reg instanceof RegisterFile) {
+			return (reg.range.right..reg.range.left).collect{ (regMap[reg.name]?:regMap[reg.name+it]?:reg.name.toLowerCase()+it).toLowerCase() }
+        } else if(reg instanceof Register){
+    		regMap[reg.name]?:reg.name.toLowerCase()
+        }
+ 	}.flatten()
+}
+%>
+#ifndef _${coreDef.name.toUpperCase()}_H_
+#define _${coreDef.name.toUpperCase()}_H_
+
+#include <array>
+#include <iss/arch/traits.h>
+#include <iss/arch_if.h>
+#include <iss/vm_if.h>
+
+namespace iss {
+namespace arch {
+
+struct ${coreDef.name.toLowerCase()};
+
+template <> struct traits<${coreDef.name.toLowerCase()}> {
+
+	constexpr static char const* const core_type = "${coreDef.name}";
+    
+  	static constexpr std::array<const char*, ${getRegisterNames().size}> reg_names{
+ 		{"${getRegisterNames().join("\", \"")}"}};
+ 
+  	static constexpr std::array<const char*, ${getRegisterAliasNames().size}> reg_aliases{
+ 		{"${getRegisterAliasNames().join("\", \"")}"}};
+
+    enum constants {${coreDef.constants.collect{c -> c.name+"="+c.value}.join(', ')}};
+
+    constexpr static unsigned FP_REGS_SIZE = ${coreDef.constants.find {it.name=='FLEN'}?.value?:0};
+
+    enum reg_e {<%
+     	allRegs.each { reg -> 
+    		if( reg instanceof RegisterFile) {
+    			(reg.range.right..reg.range.left).each{%>
+        ${reg.name}${it},<%
+                }
+            } else if(reg instanceof Register){ %>
+        ${reg.name},<%  
+            }
+        }%>
+        NUM_REGS,
+        NEXT_${pc.name}=NUM_REGS,
+        TRAP_STATE,
+        PENDING_TRAP,
+        MACHINE_STATE,
+        LAST_BRANCH,
+        ICOUNT<% 
+     	allRegs.each { reg -> 
+    		if(reg instanceof RegisterAlias){ def aliasname=getOriginalName(reg)%>,
+        ${reg.name} = ${aliasname}<%
+            }
+        }%>
+    };
+
+    using reg_t = uint${regDataWidth}_t;
+
+    using addr_t = uint${addrDataWidth}_t;
+
+    using code_word_t = uint${addrDataWidth}_t; //TODO: check removal
+
+    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;
+
+    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;
+
+ 	static constexpr std::array<const uint32_t, ${regSizes.size}> reg_bit_widths{
+ 		{${regSizes.join(",")}}};
+
+    static constexpr std::array<const uint32_t, ${regOffsets.size}> reg_byte_offsets{
+    	{${regOffsets.join(",")}}};
+
+    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);
+
+    enum sreg_flag_e { FLAGS };
+
+    enum mem_type_e { ${allSpaces.collect{s -> s.name}.join(', ')} };
+};
+
+struct ${coreDef.name.toLowerCase()}: public arch_if {
+
+    using virt_addr_t = typename traits<${coreDef.name.toLowerCase()}>::virt_addr_t;
+    using phys_addr_t = typename traits<${coreDef.name.toLowerCase()}>::phys_addr_t;
+    using reg_t =  typename traits<${coreDef.name.toLowerCase()}>::reg_t;
+    using addr_t = typename traits<${coreDef.name.toLowerCase()}>::addr_t;
+
+    ${coreDef.name.toLowerCase()}();
+    ~${coreDef.name.toLowerCase()}();
+
+    void reset(uint64_t address=0) override;
+
+    uint8_t* get_regs_base_ptr() override;
+    /// deprecated
+    void get_reg(short idx, std::vector<uint8_t>& value) override {}
+    void set_reg(short idx, const std::vector<uint8_t>& value) override {}
+    /// deprecated
+    bool get_flag(int flag) override {return false;}
+    void set_flag(int, bool value) override {};
+    /// deprecated
+    void update_flags(operations op, uint64_t opr1, uint64_t opr2) override {};
+
+    inline uint64_t get_icount() { return reg.icount; }
+
+    inline bool should_stop() { return interrupt_sim; }
+
+    inline uint64_t stop_code() { return interrupt_sim; }
+
+    inline phys_addr_t v2p(const iss::addr_t& addr){
+        if (addr.space != traits<${coreDef.name.toLowerCase()}>::MEM || addr.type == iss::address_type::PHYSICAL ||
+                addr_mode[static_cast<uint16_t>(addr.access)&0x3]==address_type::PHYSICAL) {
+            return phys_addr_t(addr.access, addr.space, addr.val&traits<${coreDef.name.toLowerCase()}>::addr_mask);
+        } else
+            return virt2phys(addr);
+    }
+
+    virtual phys_addr_t virt2phys(const iss::addr_t& addr);
+
+    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }
+
+    inline uint32_t get_last_branch() { return reg.last_branch; }
+
+protected:
+    struct ${coreDef.name}_regs {<%
+     	allRegs.each { reg -> 
+    		if( reg instanceof RegisterFile) {
+    			(reg.range.right..reg.range.left).each{%>
+        uint${generator.getSize(reg)}_t ${reg.name}${it} = 0;<%
+                }
+            } else if(reg instanceof Register){ %>
+        uint${generator.getSize(reg)}_t ${reg.name} = 0;<%
+            }
+        }%>
+        uint${generator.getSize(pc)}_t NEXT_${pc.name} = 0;
+        uint32_t trap_state = 0, pending_trap = 0, machine_state = 0, last_branch = 0;
+        uint64_t icount = 0;
+    } reg;
+
+    std::array<address_type, 4> addr_mode;
+    
+    uint64_t interrupt_sim=0;
+<%
+def fcsr = allRegs.find {it.name=='FCSR'}
+if(fcsr != null) {%>
+	uint${generator.getSize(fcsr)}_t get_fcsr(){return reg.FCSR;}
+	void set_fcsr(uint${generator.getSize(fcsr)}_t val){reg.FCSR = val;}		
+<%} else { %>
+	uint32_t get_fcsr(){return 0;}
+	void set_fcsr(uint32_t val){}
+<%}%>
+};
+
+}
+}            
+#endif /* _${coreDef.name.toUpperCase()}_H_ */

gen_input/templates/interp/src-CORENAME.cpp.gtl

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (C) 2017 - 2020 MINRES Technologies GmbH
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -29,41 +29,72 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  *******************************************************************************/
-<% 
-def getRegisterSizes(){
-	def regs = registers.collect{it.size}
-	regs[-1]=64 // correct for NEXT_PC
-	//regs+=[32, 32, 64, 64, 64, 32] // append TRAP_STATE, PENDING_TRAP, ICOUNT, CYCLE, INSTRET, INSTRUCTION
-    return regs
+ <% 
+import com.minres.coredsl.coreDsl.Register
+import com.minres.coredsl.coreDsl.RegisterFile
+import com.minres.coredsl.coreDsl.RegisterAlias
+def getOriginalName(reg){
+    if( reg.original instanceof RegisterFile) {
+    	if( reg.index != null ) {
+        	return reg.original.name+generator.generateHostCode(reg.index)
+        } else {
+        	return reg.original.name
+        }
+    } else if(reg.original instanceof Register){
+        return reg.original.name
+    }
+}
+def getRegisterNames(){
+	def regNames = []
+ 	allRegs.each { reg -> 
+		if( reg instanceof RegisterFile) {
+			(reg.range.right..reg.range.left).each{
+    			regNames+=reg.name.toLowerCase()+it
+            }
+        } else if(reg instanceof Register){
+    		regNames+=reg.name.toLowerCase()
+        }
+    }
+    return regNames
+}
+def getRegisterAliasNames(){
+	def regMap = allRegs.findAll{it instanceof RegisterAlias }.collectEntries {[getOriginalName(it), it.name]}
+ 	return allRegs.findAll{it instanceof Register || it instanceof RegisterFile}.collect{reg ->
+		if( reg instanceof RegisterFile) {
+			return (reg.range.right..reg.range.left).collect{ (regMap[reg.name]?:regMap[reg.name+it]?:reg.name.toLowerCase()+it).toLowerCase() }
+        } else if(reg instanceof Register){
+    		regMap[reg.name]?:reg.name.toLowerCase()
+        }
+ 	}.flatten()
 }
 %>
-#include "${coreDef.name.toLowerCase()}.h"
 #include "util/ities.h"
 #include <util/logging.h>
+#include <iss/arch/${coreDef.name.toLowerCase()}.h>
 #include <cstdio>
 #include <cstring>
 #include <fstream>
 
 using namespace iss::arch;
 
-constexpr std::array<const char*, ${registers.size}>    iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_names;
-constexpr std::array<const char*, ${registers.size}>    iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_aliases;
-constexpr std::array<const uint32_t, ${getRegisterSizes().size}> iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_bit_widths;
-constexpr std::array<const uint32_t, ${getRegisterSizes().size}> iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_byte_offsets;
+constexpr std::array<const char*, ${getRegisterNames().size}>    iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_names;
+constexpr std::array<const char*, ${getRegisterAliasNames().size}>    iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_aliases;
+constexpr std::array<const uint32_t, ${regSizes.size}> iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_bit_widths;
+constexpr std::array<const uint32_t, ${regOffsets.size}> iss::arch::traits<iss::arch::${coreDef.name.toLowerCase()}>::reg_byte_offsets;
 
-${coreDef.name.toLowerCase()}::${coreDef.name.toLowerCase()}()  = default;
+${coreDef.name.toLowerCase()}::${coreDef.name.toLowerCase()}() {
+    reg.icount = 0;
+}
 
 ${coreDef.name.toLowerCase()}::~${coreDef.name.toLowerCase()}() = default;
 
 void ${coreDef.name.toLowerCase()}::reset(uint64_t address) {
-    auto base_ptr = reinterpret_cast<traits<${coreDef.name.toLowerCase()}>::reg_t*>(get_regs_base_ptr());
-    for(size_t i=0; i<traits<${coreDef.name.toLowerCase()}>::NUM_REGS; ++i)
-        *(base_ptr+i)=0;
+    for(size_t i=0; i<traits<${coreDef.name.toLowerCase()}>::NUM_REGS; ++i) set_reg(i, std::vector<uint8_t>(sizeof(traits<${coreDef.name.toLowerCase()}>::reg_t),0));
     reg.PC=address;
     reg.NEXT_PC=reg.PC;
-    reg.PRIV=0x3;
-    trap_state=0;
-    icount=0;
+    reg.trap_state=0;
+    reg.machine_state=0x3;
+    reg.icount=0;
 }
 
 uint8_t *${coreDef.name.toLowerCase()}::get_regs_base_ptr() {

gen_input/templates/interp/vm-vm_CORENAME.cpp.gtl

@@ -0,0 +1,247 @@
+/*******************************************************************************
+ * Copyright (C) 2020 MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+#include "../fp_functions.h"
+#include <iss/arch/${coreDef.name.toLowerCase()}.h>
+#include <iss/arch/riscv_hart_m_p.h>
+#include <iss/debugger/gdb_session.h>
+#include <iss/debugger/server.h>
+#include <iss/iss.h>
+#include <iss/interp/vm_base.h>
+#include <util/logging.h>
+#include <sstream>
+
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#include <fmt/format.h>
+
+#include <array>
+#include <iss/debugger/riscv_target_adapter.h>
+
+namespace iss {
+namespace interp {
+namespace ${coreDef.name.toLowerCase()} {
+using namespace iss::arch;
+using namespace iss::debugger;
+
+template <typename ARCH> class vm_impl : public iss::interp::vm_base<ARCH> {
+public:
+    using super = typename iss::interp::vm_base<ARCH>;
+    using virt_addr_t = typename super::virt_addr_t;
+    using phys_addr_t = typename super::phys_addr_t;
+    using code_word_t = typename super::code_word_t;
+    using addr_t = typename super::addr_t;
+    using reg_t = typename traits<ARCH>::reg_t;
+    using iss::interp::vm_base<ARCH>::get_reg;
+
+    vm_impl();
+
+    vm_impl(ARCH &core, unsigned core_id = 0, unsigned cluster_id = 0);
+
+    void enableDebug(bool enable) { super::sync_exec = super::ALL_SYNC; }
+
+    target_adapter_if *accquire_target_adapter(server_if *srv) override {
+        debugger_if::dbg_enabled = true;
+        if (super::tgt_adapter == nullptr)
+            super::tgt_adapter = new riscv_target_adapter<ARCH>(srv, this->get_arch());
+        return super::tgt_adapter;
+    }
+
+protected:
+    using this_class = vm_impl<ARCH>;
+    using compile_ret_t = virt_addr_t;
+    using compile_func = compile_ret_t (this_class::*)(virt_addr_t &pc, code_word_t instr);
+
+    inline const char *name(size_t index){return traits<ARCH>::reg_aliases.at(index);}
+
+    virt_addr_t execute_inst(virt_addr_t start, std::function<bool(void)> pred) override;
+
+    // some compile time constants
+    // enum { MASK16 = 0b1111110001100011, MASK32 = 0b11111111111100000111000001111111 };
+    enum { MASK16 = 0b1111111111111111, MASK32 = 0b11111111111100000111000001111111 };
+    enum { EXTR_MASK16 = MASK16 >> 2, EXTR_MASK32 = MASK32 >> 2 };
+    enum { LUT_SIZE = 1 << util::bit_count(EXTR_MASK32), LUT_SIZE_C = 1 << util::bit_count(EXTR_MASK16) };
+
+    std::array<compile_func, LUT_SIZE> lut;
+
+    std::array<compile_func, LUT_SIZE_C> lut_00, lut_01, lut_10;
+    std::array<compile_func, LUT_SIZE> lut_11;
+
+    std::array<compile_func *, 4> qlut;
+
+    std::array<const uint32_t, 4> lutmasks = {{EXTR_MASK16, EXTR_MASK16, EXTR_MASK16, EXTR_MASK32}};
+
+    void expand_bit_mask(int pos, uint32_t mask, uint32_t value, uint32_t valid, uint32_t idx, compile_func lut[],
+                         compile_func f) {
+        if (pos < 0) {
+            lut[idx] = f;
+        } else {
+            auto bitmask = 1UL << pos;
+            if ((mask & bitmask) == 0) {
+                expand_bit_mask(pos - 1, mask, value, valid, idx, lut, f);
+            } else {
+                if ((valid & bitmask) == 0) {
+                    expand_bit_mask(pos - 1, mask, value, valid, (idx << 1), lut, f);
+                    expand_bit_mask(pos - 1, mask, value, valid, (idx << 1) + 1, lut, f);
+                } else {
+                    auto new_val = idx << 1;
+                    if ((value & bitmask) != 0) new_val++;
+                    expand_bit_mask(pos - 1, mask, value, valid, new_val, lut, f);
+                }
+            }
+        }
+    }
+
+    inline uint32_t extract_fields(uint32_t val) { return extract_fields(29, val >> 2, lutmasks[val & 0x3], 0); }
+
+    uint32_t extract_fields(int pos, uint32_t val, uint32_t mask, uint32_t lut_val) {
+        if (pos >= 0) {
+            auto bitmask = 1UL << pos;
+            if ((mask & bitmask) == 0) {
+                lut_val = extract_fields(pos - 1, val, mask, lut_val);
+            } else {
+                auto new_val = lut_val << 1;
+                if ((val & bitmask) != 0) new_val++;
+                lut_val = extract_fields(pos - 1, val, mask, new_val);
+            }
+        }
+        return lut_val;
+    }
+
+    void raise_trap(uint16_t trap_id, uint16_t cause){
+        auto trap_val =  0x80ULL << 24 | (cause << 16) | trap_id;
+        this->template get_reg<uint32_t>(arch::traits<ARCH>::TRAP_STATE) = trap_val;
+        this->template get_reg<uint32_t>(arch::traits<ARCH>::NEXT_PC) = std::numeric_limits<uint32_t>::max();
+    }
+
+    void leave_trap(unsigned lvl){
+        this->core.leave_trap(lvl);
+        auto pc_val = super::template read_mem<reg_t>(traits<ARCH>::CSR, (lvl << 8) + 0x41);
+        this->template get_reg<reg_t>(arch::traits<ARCH>::NEXT_PC) = pc_val;
+        this->template get_reg<uint32_t>(arch::traits<ARCH>::LAST_BRANCH) = std::numeric_limits<uint32_t>::max();
+    }
+
+    void wait(unsigned type){
+        this->core.wait_until(type);
+    }
+
+
+private:
+    /****************************************************************************
+     * start opcode definitions
+     ****************************************************************************/
+    struct InstructionDesriptor {
+        size_t length;
+        uint32_t value;
+        uint32_t mask;
+        compile_func op;
+    };
+
+    const std::array<InstructionDesriptor, ${instructions.size}> instr_descr = {{
+         /* entries are: size, valid value, valid mask, function ptr */<%instructions.each{instr -> %>
+        /* instruction ${instr.instruction.name} */
+        {${instr.length}, ${instr.value}, ${instr.mask}, &this_class::__${generator.functionName(instr.name)}},<%}%>
+    }};
+ 
+    /* instruction definitions */<%instructions.eachWithIndex{instr, idx -> %>
+    /* instruction ${idx}: ${instr.name} */
+    compile_ret_t __${generator.functionName(instr.name)}(virt_addr_t& pc, code_word_t instr){<%instr.code.eachLine{%>
+        ${it}<%}%>
+    }
+    <%}%>
+    /****************************************************************************
+     * end opcode definitions
+     ****************************************************************************/
+    compile_ret_t illegal_intruction(virt_addr_t &pc, code_word_t instr) {
+        pc = pc + ((instr & 3) == 3 ? 4 : 2);
+        return pc;
+    }
+};
+
+template <typename CODE_WORD> void debug_fn(CODE_WORD insn) {
+    volatile CODE_WORD x = insn;
+    insn = 2 * x;
+}
+
+template <typename ARCH> vm_impl<ARCH>::vm_impl() { this(new ARCH()); }
+
+template <typename ARCH>
+vm_impl<ARCH>::vm_impl(ARCH &core, unsigned core_id, unsigned cluster_id)
+: vm_base<ARCH>(core, core_id, cluster_id) {
+    qlut[0] = lut_00.data();
+    qlut[1] = lut_01.data();
+    qlut[2] = lut_10.data();
+    qlut[3] = lut_11.data();
+    for (auto instr : instr_descr) {
+        auto quantrant = instr.value & 0x3;
+        expand_bit_mask(29, lutmasks[quantrant], instr.value >> 2, instr.mask >> 2, 0, qlut[quantrant], instr.op);
+    }
+}
+
+template <typename ARCH>
+typename vm_base<ARCH>::virt_addr_t vm_impl<ARCH>::execute_inst(virt_addr_t start, std::function<bool(void)> pred) {
+    // we fetch at max 4 byte, alignment is 2
+    enum {TRAP_ID=1<<16};
+    const typename traits<ARCH>::addr_t upper_bits = ~traits<ARCH>::PGMASK;
+    code_word_t insn = 0;
+    auto *const data = (uint8_t *)&insn;
+    auto pc=start;
+    while(pred){
+        auto paddr = this->core.v2p(pc);
+        if ((pc.val & upper_bits) != ((pc.val + 2) & upper_bits)) { // we may cross a page boundary
+            if (this->core.read(paddr, 2, data) != iss::Ok) throw trap_access(TRAP_ID, pc.val);
+            if ((insn & 0x3) == 0x3) // this is a 32bit instruction
+                if (this->core.read(this->core.v2p(pc + 2), 2, data + 2) != iss::Ok) throw trap_access(TRAP_ID, pc.val);
+        } else {
+            if (this->core.read(paddr, 4, data) != iss::Ok) throw trap_access(TRAP_ID, pc.val);
+        }
+        if (insn == 0x0000006f || (insn&0xffff)==0xa001) throw simulation_stopped(0); // 'J 0' or 'C.J 0'
+        auto lut_val = extract_fields(insn);
+        auto f = qlut[insn & 0x3][lut_val];
+        if (!f)
+            f = &this_class::illegal_intruction;
+        pc = (this->*f)(pc, insn);
+    }
+    return pc;
+}
+
+} // namespace mnrv32
+
+template <>
+std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreDef.name.toLowerCase()} *core, unsigned short port, bool dump) {
+    auto ret = new ${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*core, dump);
+    if (port != 0) debugger::server<debugger::gdb_session>::run_server(ret, port);
+    return std::unique_ptr<vm_if>(ret);
+}
+} // namespace interp
+} // namespace iss

gen_input/templates/llvm/vm-vm_CORENAME.cpp.gtl

@@ -30,10 +30,10 @@
  *
  *******************************************************************************/
 
-#include <iss/debugger/gdb_session.h>
-#include <iss/debugger/server.h>
 #include <iss/arch/${coreDef.name.toLowerCase()}.h>
 #include <iss/arch/riscv_hart_m_p.h>
+#include <iss/debugger/gdb_session.h>
+#include <iss/debugger/server.h>
 #include <iss/iss.h>
 #include <iss/llvm/vm_base.h>
 #include <util/logging.h>

incl/iss/arch/riscv_hart_m_p.h

@@ -0,0 +1,944 @@
+/*******************************************************************************
+ * Copyright (C) 2017, 2018, MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Contributors:
+ *       eyck@minres.com - initial implementation
+ ******************************************************************************/
+
+#ifndef _RISCV_CORE_H_
+#define _RISCV_CORE_H_
+
+#include "iss/arch/traits.h"
+#include "iss/arch_if.h"
+#include "iss/instrumentation_if.h"
+#include "iss/log_categories.h"
+#include "iss/vm_if.h"
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#include <array>
+#include <elfio/elfio.hpp>
+#include <fmt/format.h>
+#include <iomanip>
+#include <sstream>
+#include <type_traits>
+#include <unordered_map>
+#include <util/bit_field.h>
+#include <util/ities.h>
+#include <util/sparse_array.h>
+
+#if defined(__GNUC__)
+#define likely(x) __builtin_expect(!!(x), 1)
+#define unlikely(x) __builtin_expect(!!(x), 0)
+#else
+#define likely(x) x
+#define unlikely(x) x
+#endif
+
+namespace iss {
+namespace arch {
+
+enum { tohost_dflt = 0xF0001000, fromhost_dflt = 0xF0001040 };
+
+enum riscv_csr {
+    /* user-level CSR */
+    // User Trap Setup
+    ustatus = 0x000,
+    uie = 0x004,
+    utvec = 0x005,
+    // User Trap Handling
+    uscratch = 0x040,
+    uepc = 0x041,
+    ucause = 0x042,
+    utval = 0x043,
+    uip = 0x044,
+    // User Floating-Point CSRs
+    fflags = 0x001,
+    frm = 0x002,
+    fcsr = 0x003,
+    // User Counter/Timers
+    cycle = 0xC00,
+    time = 0xC01,
+    instret = 0xC02,
+    hpmcounter3 = 0xC03,
+    hpmcounter4 = 0xC04,
+    /*...*/
+    hpmcounter31 = 0xC1F,
+    cycleh = 0xC80,
+    timeh = 0xC81,
+    instreth = 0xC82,
+    hpmcounter3h = 0xC83,
+    hpmcounter4h = 0xC84,
+    /*...*/
+    hpmcounter31h = 0xC9F,
+    /* supervisor-level CSR */
+    // Supervisor Trap Setup
+    sstatus = 0x100,
+    sedeleg = 0x102,
+    sideleg = 0x103,
+    sie = 0x104,
+    stvec = 0x105,
+    scounteren = 0x106,
+    // Supervisor Trap Handling
+    sscratch = 0x140,
+    sepc = 0x141,
+    scause = 0x142,
+    stval = 0x143,
+    sip = 0x144,
+    // Supervisor Protection and Translation
+    satp = 0x180,
+    /* machine-level CSR */
+    // Machine Information Registers
+    mvendorid = 0xF11,
+    marchid = 0xF12,
+    mimpid = 0xF13,
+    mhartid = 0xF14,
+    // Machine Trap Setup
+    mstatus = 0x300,
+    misa = 0x301,
+    medeleg = 0x302,
+    mideleg = 0x303,
+    mie = 0x304,
+    mtvec = 0x305,
+    mcounteren = 0x306,
+    // Machine Trap Handling
+    mscratch = 0x340,
+    mepc = 0x341,
+    mcause = 0x342,
+    mtval = 0x343,
+    mip = 0x344,
+    // Machine Protection and Translation
+    pmpcfg0 = 0x3A0,
+    pmpcfg1 = 0x3A1,
+    pmpcfg2 = 0x3A2,
+    pmpcfg3 = 0x3A3,
+    pmpaddr0 = 0x3B0,
+    pmpaddr1 = 0x3B1,
+    /*...*/
+    pmpaddr15 = 0x3BF,
+    // Machine Counter/Timers
+    mcycle = 0xB00,
+    minstret = 0xB02,
+    mhpmcounter3 = 0xB03,
+    mhpmcounter4 = 0xB04,
+    /*...*/
+    mhpmcounter31 = 0xB1F,
+    mcycleh = 0xB80,
+    minstreth = 0xB82,
+    mhpmcounter3h = 0xB83,
+    mhpmcounter4h = 0xB84,
+    /*...*/
+    mhpmcounter31h = 0xB9F,
+    // Machine Counter Setup
+    mhpmevent3 = 0x323,
+    mhpmevent4 = 0x324,
+    /*...*/
+    mhpmevent31 = 0x33F,
+    // Debug/Trace Registers (shared with Debug Mode)
+    tselect = 0x7A0,
+    tdata1 = 0x7A1,
+    tdata2 = 0x7A2,
+    tdata3 = 0x7A3,
+    // Debug Mode Registers
+    dcsr = 0x7B0,
+    dpc = 0x7B1,
+    dscratch = 0x7B2
+};
+
+namespace {
+
+std::array<const char *, 16> trap_str = {{""
+                                          "Instruction address misaligned", // 0
+                                          "Instruction access fault",       // 1
+                                          "Illegal instruction",            // 2
+                                          "Breakpoint",                     // 3
+                                          "Load address misaligned",        // 4
+                                          "Load access fault",              // 5
+                                          "Store/AMO address misaligned",   // 6
+                                          "Store/AMO access fault",         // 7
+                                          "Environment call from U-mode",   // 8
+                                          "Environment call from S-mode",   // 9
+                                          "Reserved",                       // a
+                                          "Environment call from M-mode",   // b
+                                          "Instruction page fault",         // c
+                                          "Load page fault",                // d
+                                          "Reserved",                       // e
+                                          "Store/AMO page fault"}};
+std::array<const char *, 12> irq_str = {
+    {"User software interrupt", "Supervisor software interrupt", "Reserved", "Machine software interrupt",
+     "User timer interrupt", "Supervisor timer interrupt", "Reserved", "Machine timer interrupt",
+     "User external interrupt", "Supervisor external interrupt", "Reserved", "Machine external interrupt"}};
+
+enum {
+    PGSHIFT = 12,
+    PTE_PPN_SHIFT = 10,
+    // page table entry (PTE) fields
+    PTE_V = 0x001,   // Valid
+    PTE_R = 0x002,   // Read
+    PTE_W = 0x004,   // Write
+    PTE_X = 0x008,   // Execute
+    PTE_U = 0x010,   // User
+    PTE_G = 0x020,   // Global
+    PTE_A = 0x040,   // Accessed
+    PTE_D = 0x080,   // Dirty
+    PTE_SOFT = 0x300 // Reserved for Software
+};
+
+template <typename T> inline bool PTE_TABLE(T PTE) { return (((PTE) & (PTE_V | PTE_R | PTE_W | PTE_X)) == PTE_V); }
+
+enum { PRIV_U = 0, PRIV_S = 1, PRIV_M = 3 };
+
+enum {
+    ISA_A = 1,
+    ISA_B = 1 << 1,
+    ISA_C = 1 << 2,
+    ISA_D = 1 << 3,
+    ISA_E = 1 << 4,
+    ISA_F = 1 << 5,
+    ISA_G = 1 << 6,
+    ISA_I = 1 << 8,
+    ISA_M = 1 << 12,
+    ISA_N = 1 << 13,
+    ISA_Q = 1 << 16,
+    ISA_S = 1 << 18,
+    ISA_U = 1 << 20
+};
+
+class trap_load_access_fault : public trap_access {
+public:
+    trap_load_access_fault(uint64_t badaddr)
+    : trap_access(5 << 16, badaddr) {}
+};
+class illegal_instruction_fault : public trap_access {
+public:
+    illegal_instruction_fault(uint64_t badaddr)
+    : trap_access(2 << 16, badaddr) {}
+};
+} // namespace
+
+template <typename BASE> class riscv_hart_m_p : public BASE {
+public:
+    using super = BASE;
+    using this_class = riscv_hart_m_p<BASE>;
+    using phys_addr_t = typename super::phys_addr_t;
+    using reg_t = typename super::reg_t;
+    using addr_t = typename super::addr_t;
+
+    using rd_csr_f = iss::status (this_class::*)(unsigned addr, reg_t &);
+    using wr_csr_f = iss::status (this_class::*)(unsigned addr, reg_t);
+
+    // primary template
+    template <class T, class Enable = void> struct hart_state {};
+    // specialization 32bit
+    template <typename T> class hart_state<T, typename std::enable_if<std::is_same<T, uint32_t>::value>::type> {
+    public:
+        BEGIN_BF_DECL(mstatus_t, T);
+        // SD bit is read-only and is set when either the FS or XS bits encode a Dirty state (i.e., SD=((FS==11) OR XS==11)))
+        BF_FIELD(SD, 31, 1);
+        // Trap SRET
+        BF_FIELD(TSR, 22, 1);
+        // Timeout Wait
+        BF_FIELD(TW, 21, 1);
+        // Trap Virtual Memory
+        BF_FIELD(TVM, 20, 1);
+        // Make eXecutable Readable
+        BF_FIELD(MXR, 19, 1);
+        // permit Supervisor User Memory access
+        BF_FIELD(SUM, 18, 1);
+        // Modify PRiVilege
+        BF_FIELD(MPRV, 17, 1);
+        // status of additional user-mode extensions and associated state, All off/None dirty or clean, some on/None dirty, some clean/Some dirty
+        BF_FIELD(XS, 15, 2);
+        // floating-point unit status Off/Initial/Clean/Dirty
+        BF_FIELD(FS, 13, 2);
+        // machine previous privilege
+        BF_FIELD(MPP, 11, 2);
+        // supervisor previous privilege
+        BF_FIELD(SPP, 8, 1);
+        // previous machine interrupt-enable
+        BF_FIELD(MPIE, 7, 1);
+        // previous supervisor interrupt-enable
+        BF_FIELD(SPIE, 5, 1);
+        // previous user interrupt-enable
+        BF_FIELD(UPIE, 4, 1);
+        // machine interrupt-enable
+        BF_FIELD(MIE, 3, 1);
+        // supervisor interrupt-enable
+        BF_FIELD(SIE, 1, 1);
+        // user interrupt-enable
+        BF_FIELD(UIE, 0, 1);
+        END_BF_DECL();
+
+        mstatus_t mstatus;
+
+        static const reg_t mstatus_reset_val = 0;
+
+        void write_mstatus(T val) {
+            auto mask = get_mask();
+            auto new_val = (mstatus.backing.val & ~mask) | (val & mask);
+            mstatus = new_val;
+        }
+
+        T satp;
+
+        static constexpr T get_misa() { return (1UL << 30) | ISA_I | ISA_M | ISA_A | ISA_U | ISA_S | ISA_M; }
+
+        static constexpr uint32_t get_mask() {
+            return 0x807ff9ddUL; // 0b1000 0000 0111 1111 1111 1001 1011 1011  // only machine mode is supported
+        }
+    };
+
+    constexpr reg_t get_irq_mask() {
+        return 0b101110111011; // only machine mode is supported
+    }
+
+    riscv_hart_m_p();
+    virtual ~riscv_hart_m_p() = default;
+
+    void reset(uint64_t address) override;
+
+    std::pair<uint64_t, bool> load_file(std::string name, int type = -1) override;
+
+    iss::status read(const address_type type, const access_type access, const uint32_t space,
+            const uint64_t addr, const unsigned length, uint8_t *const data) override;
+    iss::status write(const address_type type, const access_type access, const uint32_t space,
+            const uint64_t addr, const unsigned length, const uint8_t *const data) override;
+
+    virtual uint64_t enter_trap(uint64_t flags) override { return riscv_hart_m_p::enter_trap(flags, fault_data); }
+    virtual uint64_t enter_trap(uint64_t flags, uint64_t addr) override;
+    virtual uint64_t leave_trap(uint64_t flags) override;
+
+    const reg_t& get_mhartid() const { return mhartid_reg;	}
+	void set_mhartid(reg_t mhartid) { mhartid_reg = mhartid; };
+
+    void disass_output(uint64_t pc, const std::string instr) override {
+        CLOG(INFO, disass) << fmt::format("0x{:016x}    {:40} [s:0x{:x};c:{}]",
+                pc, instr, (reg_t)state.mstatus, this->reg.icount);
+    };
+
+    iss::instrumentation_if *get_instrumentation_if() override { return &instr_if; }
+ 
+protected:
+    struct riscv_instrumentation_if : public iss::instrumentation_if {
+
+        riscv_instrumentation_if(riscv_hart_m_p<BASE> &arch)
+        : arch(arch) {}
+        /**
+         * get the name of this architecture
+         *
+         * @return the name of this architecture
+         */
+        const std::string core_type_name() const override { return traits<BASE>::core_type; }
+
+        virtual uint64_t get_pc() { return arch.get_pc(); };
+
+        virtual uint64_t get_next_pc() { return arch.get_next_pc(); };
+
+        virtual void set_curr_instr_cycles(unsigned cycles) { arch.cycle_offset += cycles - 1; };
+
+        riscv_hart_m_p<BASE> &arch;
+    };
+
+    friend struct riscv_instrumentation_if;
+    addr_t get_pc() { return this->reg.PC; }
+    addr_t get_next_pc() { return this->reg.NEXT_PC; }
+
+    virtual iss::status read_mem(phys_addr_t addr, unsigned length, uint8_t *const data);
+    virtual iss::status write_mem(phys_addr_t addr, unsigned length, const uint8_t *const data);
+
+    virtual iss::status read_csr(unsigned addr, reg_t &val);
+    virtual iss::status write_csr(unsigned addr, reg_t val);
+
+    hart_state<reg_t> state;
+    uint64_t cycle_offset;
+    reg_t fault_data;
+    uint64_t tohost = tohost_dflt;
+    uint64_t fromhost = fromhost_dflt;
+    unsigned to_host_wr_cnt = 0;
+    riscv_instrumentation_if instr_if;
+
+    using mem_type = util::sparse_array<uint8_t, 1ULL << 32>;
+    using csr_type = util::sparse_array<typename traits<BASE>::reg_t, 1ULL << 12, 12>;
+    using csr_page_type = typename csr_type::page_type;
+    mem_type mem;
+    csr_type csr;
+    std::stringstream uart_buf;
+    std::unordered_map<reg_t, uint64_t> ptw;
+    std::unordered_map<uint64_t, uint8_t> atomic_reservation;
+    std::unordered_map<unsigned, rd_csr_f> csr_rd_cb;
+    std::unordered_map<unsigned, wr_csr_f> csr_wr_cb;
+
+private:
+    iss::status read_cycle(unsigned addr, reg_t &val);
+    iss::status read_time(unsigned addr, reg_t &val);
+    iss::status read_status(unsigned addr, reg_t &val);
+    iss::status write_status(unsigned addr, reg_t val);
+    iss::status read_ie(unsigned addr, reg_t &val);
+    iss::status write_ie(unsigned addr, reg_t val);
+    iss::status read_ip(unsigned addr, reg_t &val);
+    iss::status write_ip(unsigned addr, reg_t val);
+    iss::status read_hartid(unsigned addr, reg_t &val);
+
+    reg_t mhartid_reg{0xF};
+
+protected:
+    void check_interrupt();
+};
+
+template <typename BASE>
+riscv_hart_m_p<BASE>::riscv_hart_m_p()
+: state()
+, cycle_offset(0)
+, instr_if(*this) {
+    csr[misa] = hart_state<reg_t>::get_misa();
+    uart_buf.str("");
+    // read-only registers
+    csr_wr_cb[misa] = nullptr;
+    for (unsigned addr = mcycle; addr <= hpmcounter31; ++addr) csr_wr_cb[addr] = nullptr;
+    for (unsigned addr = mcycleh; addr <= hpmcounter31h; ++addr) csr_wr_cb[addr] = nullptr;
+    // special handling
+    csr_rd_cb[time] = &riscv_hart_m_p<BASE>::read_time;
+    csr_wr_cb[time] = nullptr;
+    csr_rd_cb[timeh] = &riscv_hart_m_p<BASE>::read_time;
+    csr_wr_cb[timeh] = nullptr;
+    csr_rd_cb[mcycle] = &riscv_hart_m_p<BASE>::read_cycle;
+    csr_rd_cb[mcycleh] = &riscv_hart_m_p<BASE>::read_cycle;
+    csr_rd_cb[minstret] = &riscv_hart_m_p<BASE>::read_cycle;
+    csr_rd_cb[minstreth] = &riscv_hart_m_p<BASE>::read_cycle;
+    csr_rd_cb[mstatus] = &riscv_hart_m_p<BASE>::read_status;
+    csr_wr_cb[mstatus] = &riscv_hart_m_p<BASE>::write_status;
+    csr_rd_cb[mip] = &riscv_hart_m_p<BASE>::read_ip;
+    csr_wr_cb[mip] = &riscv_hart_m_p<BASE>::write_ip;
+    csr_rd_cb[mie] = &riscv_hart_m_p<BASE>::read_ie;
+    csr_wr_cb[mie] = &riscv_hart_m_p<BASE>::write_ie;
+    csr_rd_cb[mhartid] = &riscv_hart_m_p<BASE>::read_hartid;
+}
+
+template <typename BASE> std::pair<uint64_t, bool> riscv_hart_m_p<BASE>::load_file(std::string name, int type) {
+    FILE *fp = fopen(name.c_str(), "r");
+    if (fp) {
+        std::array<char, 5> buf;
+        auto n = fread(buf.data(), 1, 4, fp);
+        if (n != 4) throw std::runtime_error("input file has insufficient size");
+        buf[4] = 0;
+        if (strcmp(buf.data() + 1, "ELF") == 0) {
+            fclose(fp);
+            // Create elfio reader
+            ELFIO::elfio reader;
+            // Load ELF data
+            if (!reader.load(name)) throw std::runtime_error("could not process elf file");
+            // check elf properties
+            if (reader.get_class() != ELFCLASS32)
+                if (sizeof(reg_t) == 4) throw std::runtime_error("wrong elf class in file");
+            if (reader.get_type() != ET_EXEC) throw std::runtime_error("wrong elf type in file");
+            if (reader.get_machine() != EM_RISCV) throw std::runtime_error("wrong elf machine in file");
+            for (const auto pseg : reader.segments) {
+                const auto fsize = pseg->get_file_size(); // 0x42c/0x0
+                const auto seg_data = pseg->get_data();
+                if (fsize > 0) {
+                    auto res = this->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_WRITE,
+                            traits<BASE>::MEM, pseg->get_physical_address(),
+                            fsize, reinterpret_cast<const uint8_t *const>(seg_data));
+                    if (res != iss::Ok)
+                        LOG(ERROR) << "problem writing " << fsize << "bytes to 0x" << std::hex
+                                   << pseg->get_physical_address();
+                }
+            }
+            for (const auto sec : reader.sections) {
+                if (sec->get_name() == ".tohost") {
+                    tohost = sec->get_address();
+                    fromhost = tohost + 0x40;
+                }
+            }
+
+            return std::make_pair(reader.get_entry(), true);
+        }
+        throw std::runtime_error("memory load file is not a valid elf file");
+    }
+    throw std::runtime_error("memory load file not found");
+}
+
+template <typename BASE>
+iss::status riscv_hart_m_p<BASE>::read(const address_type type, const access_type access, const uint32_t space,
+        const uint64_t addr, const unsigned length, uint8_t *const data) {
+#ifndef NDEBUG
+    if (access && iss::access_type::DEBUG) {
+        LOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
+    } else if(access && iss::access_type::FETCH){
+        LOG(TRACEALL) << "fetch of " << length << " bytes  @addr 0x" << std::hex << addr;
+    } else {
+        LOG(TRACE) << "read of " << length << " bytes  @addr 0x" << std::hex << addr;
+   }
+#endif
+    try {
+        switch (space) {
+        case traits<BASE>::MEM: {
+            if (unlikely((access == iss::access_type::FETCH || access == iss::access_type::DEBUG_FETCH) && (addr & 0x1) == 1)) {
+                fault_data = addr;
+                if (access && iss::access_type::DEBUG) throw trap_access(0, addr);
+                this->reg.trap_state = (1 << 31); // issue trap 0
+                return iss::Err;
+            }
+            try {
+                auto res = type==iss::address_type::PHYSICAL?
+                        read_mem( BASE::v2p(phys_addr_t{access, space, addr}), length, data):
+                        read_mem( BASE::v2p(iss::addr_t{access, type, space, addr}), length, data);
+                if (unlikely(res != iss::Ok)) this->reg.trap_state = (1 << 31) | (5 << 16); // issue trap 5 (load access fault
+                return res;
+            } catch (trap_access &ta) {
+                this->reg.trap_state = (1 << 31) | ta.id;
+                return iss::Err;
+            }
+        } break;
+        case traits<BASE>::CSR: {
+            if (length != sizeof(reg_t)) return iss::Err;
+            return read_csr(addr, *reinterpret_cast<reg_t *const>(data));
+        } break;
+        case traits<BASE>::FENCE: {
+            if ((addr + length) > mem.size()) return iss::Err;
+            return iss::Ok;
+        } break;
+        case traits<BASE>::RES: {
+            auto it = atomic_reservation.find(addr);
+            if (it != atomic_reservation.end() && it->second != 0) {
+                memset(data, 0xff, length);
+                atomic_reservation.erase(addr);
+            } else
+                memset(data, 0, length);
+        } break;
+        default:
+            return iss::Err; // assert("Not supported");
+        }
+        return iss::Ok;
+    } catch (trap_access &ta) {
+        this->reg.trap_state = (1 << 31) | ta.id;
+        return iss::Err;
+    }
+}
+
+template <typename BASE>
+iss::status riscv_hart_m_p<BASE>::write(const address_type type, const access_type access, const uint32_t space,
+        const uint64_t addr, const unsigned length, const uint8_t *const data) {
+#ifndef NDEBUG
+    const char *prefix = (access && iss::access_type::DEBUG) ? "debug " : "";
+    switch (length) {
+    case 8:
+        LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t *)&data[0] << std::dec
+                   << ") @addr 0x" << std::hex << addr;
+        break;
+    case 4:
+        LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t *)&data[0] << std::dec
+                   << ") @addr 0x" << std::hex << addr;
+        break;
+    case 2:
+        LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t *)&data[0] << std::dec
+                   << ") @addr 0x" << std::hex << addr;
+        break;
+    case 1:
+        LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec
+                   << ") @addr 0x" << std::hex << addr;
+        break;
+    default:
+        LOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
+    }
+#endif
+    try {
+        switch (space) {
+        case traits<BASE>::MEM: {
+            if (unlikely((access && iss::access_type::FETCH) && (addr & 0x1) == 1)) {
+                fault_data = addr;
+                if (access && iss::access_type::DEBUG) throw trap_access(0, addr);
+                this->reg.trap_state = (1 << 31); // issue trap 0
+                return iss::Err;
+            }
+            try {
+                auto res = type==iss::address_type::PHYSICAL?
+                        write_mem(phys_addr_t{access, space, addr}, length, data):
+                        write_mem(BASE::v2p(iss::addr_t{access, type, space, addr}), length, data);
+                if (unlikely(res != iss::Ok))
+                    this->reg.trap_state = (1 << 31) | (5 << 16); // issue trap 7 (Store/AMO access fault)
+                return res;
+            } catch (trap_access &ta) {
+                this->reg.trap_state = (1 << 31) | ta.id;
+                return iss::Err;
+            }
+
+            phys_addr_t paddr = BASE::v2p(iss::addr_t{access, type, space, addr});
+            if ((paddr.val + length) > mem.size()) return iss::Err;
+            switch (paddr.val) {
+            case 0x10013000: // UART0 base, TXFIFO reg
+            case 0x10023000: // UART1 base, TXFIFO reg
+                uart_buf << (char)data[0];
+                if (((char)data[0]) == '\n' || data[0] == 0) {
+                    // LOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
+                    // '"<<uart_buf.str()<<"'";
+                    std::cout << uart_buf.str();
+                    uart_buf.str("");
+                }
+                return iss::Ok;
+            case 0x10008000: { // HFROSC base, hfrosccfg reg
+                auto &p = mem(paddr.val / mem.page_size);
+                auto offs = paddr.val & mem.page_addr_mask;
+                std::copy(data, data + length, p.data() + offs);
+                auto &x = *(p.data() + offs + 3);
+                if (x & 0x40) x |= 0x80; // hfroscrdy = 1 if hfroscen==1
+                return iss::Ok;
+            }
+            case 0x10008008: { // HFROSC base, pllcfg reg
+                auto &p = mem(paddr.val / mem.page_size);
+                auto offs = paddr.val & mem.page_addr_mask;
+                std::copy(data, data + length, p.data() + offs);
+                auto &x = *(p.data() + offs + 3);
+                x |= 0x80; // set pll lock upon writing
+                return iss::Ok;
+            } break;
+            default: {}
+            }
+        } break;
+        case traits<BASE>::CSR: {
+            if (length != sizeof(reg_t)) return iss::Err;
+            return write_csr(addr, *reinterpret_cast<const reg_t *>(data));
+        } break;
+        case traits<BASE>::FENCE: {
+            if ((addr + length) > mem.size()) return iss::Err;
+            switch (addr) {
+            case 2:
+            case 3: {
+                ptw.clear();
+                auto tvm = state.mstatus.TVM;
+                return iss::Ok;
+            }
+            }
+        } break;
+        case traits<BASE>::RES: {
+            atomic_reservation[addr] = data[0];
+        } break;
+        default:
+            return iss::Err;
+        }
+        return iss::Ok;
+    } catch (trap_access &ta) {
+        this->reg.trap_state = (1 << 31) | ta.id;
+        return iss::Err;
+    }
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_csr(unsigned addr, reg_t &val) {
+    if (addr >= csr.size()) return iss::Err;
+    auto req_priv_lvl = (addr >> 8) & 0x3;
+    if (this->reg.machine_state < req_priv_lvl) throw illegal_instruction_fault(this->fault_data);
+    auto it = csr_rd_cb.find(addr);
+    if (it == csr_rd_cb.end()) {
+        val = csr[addr & csr.page_addr_mask];
+        return iss::Ok;
+    }
+    rd_csr_f f = it->second;
+    if (f == nullptr) throw illegal_instruction_fault(this->fault_data);
+    return (this->*f)(addr, val);
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::write_csr(unsigned addr, reg_t val) {
+    if (addr >= csr.size()) return iss::Err;
+    auto req_priv_lvl = (addr >> 8) & 0x3;
+    if (this->reg.machine_state < req_priv_lvl)
+        throw illegal_instruction_fault(this->fault_data);
+    if((addr&0xc00)==0xc00)
+        throw illegal_instruction_fault(this->fault_data);
+    auto it = csr_wr_cb.find(addr);
+    if (it == csr_wr_cb.end()) {
+        csr[addr & csr.page_addr_mask] = val;
+        return iss::Ok;
+    }
+    wr_csr_f f = it->second;
+    if (f == nullptr) throw illegal_instruction_fault(this->fault_data);
+    return (this->*f)(addr, val);
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_cycle(unsigned addr, reg_t &val) {
+    auto cycle_val = this->reg.icount + cycle_offset;
+    if (addr == mcycle) {
+        val = static_cast<reg_t>(cycle_val);
+    } else if (addr == mcycleh) {
+        if (sizeof(typename traits<BASE>::reg_t) != 4) return iss::Err;
+        val = static_cast<reg_t>(cycle_val >> 32);
+    }
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_time(unsigned addr, reg_t &val) {
+    uint64_t time_val = (this->reg.icount + cycle_offset) / (100000000 / 32768 - 1); //-> ~3052;
+    if (addr == time) {
+        val = static_cast<reg_t>(time_val);
+    } else if (addr == timeh) {
+        if (sizeof(typename traits<BASE>::reg_t) != 4) return iss::Err;
+        val = static_cast<reg_t>(time_val >> 32);
+    }
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_status(unsigned addr, reg_t &val) {
+    val = state.mstatus & hart_state<reg_t>::get_mask();
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::write_status(unsigned addr, reg_t val) {
+    state.write_mstatus(val);
+    check_interrupt();
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_ie(unsigned addr, reg_t &val) {
+    val = csr[mie];
+    val &= csr[mideleg];
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_hartid(unsigned addr, reg_t &val) {
+    val = mhartid_reg;
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::write_ie(unsigned addr, reg_t val) {
+    auto mask = get_irq_mask();
+    csr[mie] = (csr[mie] & ~mask) | (val & mask);
+    check_interrupt();
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::read_ip(unsigned addr, reg_t &val) {
+    val = csr[mip];
+    val &= csr[mideleg];
+    return iss::Ok;
+}
+
+template <typename BASE> iss::status riscv_hart_m_p<BASE>::write_ip(unsigned addr, reg_t val) {
+    auto mask = get_irq_mask();
+    mask &= ~(1 << 7); // MTIP is read only
+    csr[mip] = (csr[mip] & ~mask) | (val & mask);
+    check_interrupt();
+    return iss::Ok;
+}
+
+template <typename BASE>
+iss::status riscv_hart_m_p<BASE>::read_mem(phys_addr_t paddr, unsigned length, uint8_t *const data) {
+    if ((paddr.val + length) > mem.size()) return iss::Err;
+    switch (paddr.val) {
+    case 0x0200BFF8: { // CLINT base, mtime reg
+        if (sizeof(reg_t) < length) return iss::Err;
+        reg_t time_val;
+        this->read_csr(time, time_val);
+        std::copy((uint8_t *)&time_val, ((uint8_t *)&time_val) + length, data);
+    } break;
+    case 0x10008000: {
+        const mem_type::page_type &p = mem(paddr.val / mem.page_size);
+        uint64_t offs = paddr.val & mem.page_addr_mask;
+        std::copy(p.data() + offs, p.data() + offs + length, data);
+        if (this->reg.icount > 30000) data[3] |= 0x80;
+    } break;
+    default: {
+        const auto &p = mem(paddr.val / mem.page_size);
+        auto offs = paddr.val & mem.page_addr_mask;
+        std::copy(p.data() + offs, p.data() + offs + length, data);
+    }
+    }
+    return iss::Ok;
+}
+
+template <typename BASE>
+iss::status riscv_hart_m_p<BASE>::write_mem(phys_addr_t paddr, unsigned length, const uint8_t *const data) {
+    if ((paddr.val + length) > mem.size()) return iss::Err;
+    switch (paddr.val) {
+    case 0x10013000: // UART0 base, TXFIFO reg
+    case 0x10023000: // UART1 base, TXFIFO reg
+        uart_buf << (char)data[0];
+        if (((char)data[0]) == '\n' || data[0] == 0) {
+            // LOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
+            // '"<<uart_buf.str()<<"'";
+            std::cout << uart_buf.str();
+            uart_buf.str("");
+        }
+        break;
+    case 0x10008000: { // HFROSC base, hfrosccfg reg
+        mem_type::page_type &p = mem(paddr.val / mem.page_size);
+        size_t offs = paddr.val & mem.page_addr_mask;
+        std::copy(data, data + length, p.data() + offs);
+        uint8_t &x = *(p.data() + offs + 3);
+        if (x & 0x40) x |= 0x80; // hfroscrdy = 1 if hfroscen==1
+    } break;
+    case 0x10008008: { // HFROSC base, pllcfg reg
+        mem_type::page_type &p = mem(paddr.val / mem.page_size);
+        size_t offs = paddr.val & mem.page_addr_mask;
+        std::copy(data, data + length, p.data() + offs);
+        uint8_t &x = *(p.data() + offs + 3);
+        x |= 0x80; // set pll lock upon writing
+    } break;
+    default: {
+        mem_type::page_type &p = mem(paddr.val / mem.page_size);
+        std::copy(data, data + length, p.data() + (paddr.val & mem.page_addr_mask));
+        // tohost handling in case of riscv-test
+        if (paddr.access && iss::access_type::FUNC) {
+            auto tohost_upper = (traits<BASE>::XLEN == 32 && paddr.val == (tohost + 4));
+            auto tohost_lower =
+                (traits<BASE>::XLEN == 32 && paddr.val == tohost);
+            if (tohost_lower || tohost_upper) {
+                uint64_t hostvar = *reinterpret_cast<uint64_t *>(p.data() + (tohost & mem.page_addr_mask));
+                if (tohost_upper || (tohost_lower && to_host_wr_cnt > 0)) {
+                    switch (hostvar >> 48) {
+                    case 0:
+                        if (hostvar != 0x1) {
+                            LOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
+                                       << "), stopping simulation";
+                        } else {
+                            LOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
+                                      << "), stopping simulation";
+                        }
+                        this->reg.trap_state=std::numeric_limits<uint32_t>::max();
+                        this->interrupt_sim=hostvar;
+                        break;
+                        //throw(iss::simulation_stopped(hostvar));
+                    case 0x0101: {
+                        char c = static_cast<char>(hostvar & 0xff);
+                        if (c == '\n' || c == 0) {
+                            LOG(INFO) << "tohost send '" << uart_buf.str() << "'";
+                            uart_buf.str("");
+                        } else
+                            uart_buf << c;
+                        to_host_wr_cnt = 0;
+                    } break;
+                    default:
+                        break;
+                    }
+                } else if (tohost_lower)
+                    to_host_wr_cnt++;
+            } else if (traits<BASE>::XLEN == 32 && paddr.val == fromhost + 4) {
+                uint64_t fhostvar = *reinterpret_cast<uint64_t *>(p.data() + (fromhost & mem.page_addr_mask));
+                *reinterpret_cast<uint64_t *>(p.data() + (tohost & mem.page_addr_mask)) = fhostvar;
+            }
+        }
+    }
+    }
+    return iss::Ok;
+}
+
+template <typename BASE> inline void riscv_hart_m_p<BASE>::reset(uint64_t address) {
+    BASE::reset(address);
+    state.mstatus = hart_state<reg_t>::mstatus_reset_val;
+}
+
+template <typename BASE> void riscv_hart_m_p<BASE>::check_interrupt() {
+    auto ideleg = csr[mideleg];
+    // Multiple simultaneous interrupts and traps at the same privilege level are
+    // handled in the following decreasing priority order:
+    // external interrupts, software interrupts, timer interrupts, then finally
+    // any synchronous traps.
+    auto ena_irq = csr[mip] & csr[mie];
+
+    bool mie = state.mstatus.MIE;
+    auto m_enabled = this->reg.machine_state < PRIV_M || (this->reg.machine_state == PRIV_M && mie);
+    auto enabled_interrupts = m_enabled ? ena_irq & ~ideleg : 0;
+
+    if (enabled_interrupts != 0) {
+        int res = 0;
+        while ((enabled_interrupts & 1) == 0) enabled_interrupts >>= 1, res++;
+        this->reg.pending_trap = res << 16 | 1; // 0x80 << 24 | (cause << 16) | trap_id
+    }
+}
+
+template <typename BASE> uint64_t riscv_hart_m_p<BASE>::enter_trap(uint64_t flags, uint64_t addr) {
+    // flags are ACTIVE[31:31], CAUSE[30:16], TRAPID[15:0]
+    // calculate and write mcause val
+    auto trap_id = bit_sub<0, 16>(flags);
+    auto cause = bit_sub<16, 15>(flags);
+    if (trap_id == 0 && cause == 11) cause = 0x8 + PRIV_M; // adjust environment call cause
+    // calculate effective privilege level
+    if (trap_id == 0) { // exception
+        // store ret addr in xepc register
+        csr[mepc] = static_cast<reg_t>(addr); // store actual address instruction of exception
+        csr[mtval] = fault_data;
+        fault_data = 0;
+    } else {
+        csr[mepc] = this->reg.NEXT_PC; // store next address if interrupt
+        this->reg.pending_trap = 0;
+    }
+    csr[mcause] = (trap_id << 31) + cause;
+    // update mstatus
+    // xPP field of mstatus is written with the active privilege mode at the time
+    // of the trap; the x PIE field of mstatus
+    // is written with the value of the active interrupt-enable bit at the time of
+    // the trap; and the x IE field of mstatus
+    // is cleared
+    // store the actual privilege level in yPP and store interrupt enable flags
+    state.mstatus.MPP = PRIV_M;
+    state.mstatus.MPIE = state.mstatus.MIE;
+    state.mstatus.MIE = false;
+
+    // get trap vector
+    auto ivec = csr[mtvec];
+    // calculate addr// set NEXT_PC to trap addressess to jump to based on MODE
+    // bits in mtvec
+    this->reg.NEXT_PC = ivec & ~0x1UL;
+    if ((ivec & 0x1) == 1 && trap_id != 0) this->reg.NEXT_PC += 4 * cause;
+    // reset trap state
+    this->reg.machine_state = PRIV_M;
+    this->reg.trap_state = 0;
+    std::array<char, 32> buffer;
+    sprintf(buffer.data(), "0x%016lx", addr);
+    if((flags&0xffffffff) != 0xffffffff)
+    CLOG(INFO, disass) << (trap_id ? "Interrupt" : "Trap") << " with cause '"
+                       << (trap_id ? irq_str[cause] : trap_str[cause]) << "' (" << cause << ")"
+                       << " at address " << buffer.data() << " occurred";
+    return this->reg.NEXT_PC;
+}
+
+template <typename BASE> uint64_t riscv_hart_m_p<BASE>::leave_trap(uint64_t flags) {
+    auto cur_priv = this->reg.machine_state;
+    auto inst_priv = flags & 0x3;
+    auto status = state.mstatus;
+
+    // pop the relevant lower-privilege interrupt enable and privilege mode stack
+    // clear respective yIE
+    if (inst_priv == PRIV_M) {
+        this->reg.machine_state = state.mstatus.MPP;
+        state.mstatus.MPP = 0; // clear mpp to U mode
+        state.mstatus.MIE = state.mstatus.MPIE;
+    } else {
+    	CLOG(ERROR, disass) << "Unsupported mode:" << inst_priv;
+    }
+
+    // sets the pc to the value stored in the x epc register.
+    this->reg.NEXT_PC = csr[mepc];
+    CLOG(INFO, disass) << "Executing xRET";
+    return this->reg.NEXT_PC;
+}
+
+} // namespace arch
+} // namespace iss
+
+#endif /* _RISCV_CORE_H_ */

incl/iss/arch/tgf_b.h

@@ -0,0 +1,252 @@
+/*******************************************************************************
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+
+#ifndef _TGF_B_H_
+#define _TGF_B_H_
+
+#include <array>
+#include <iss/arch/traits.h>
+#include <iss/arch_if.h>
+#include <iss/vm_if.h>
+
+namespace iss {
+namespace arch {
+
+struct tgf_b;
+
+template <> struct traits<tgf_b> {
+
+	constexpr static char const* const core_type = "TGF_B";
+    
+  	static constexpr std::array<const char*, 33> reg_names{
+ 		{"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31", "pc"}};
+ 
+  	static constexpr std::array<const char*, 33> reg_aliases{
+ 		{"zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", "pc"}};
+
+    enum constants {XLEN=32, PCLEN=32, MISA_VAL=0b1000000000000000000000100000000, PGSIZE=0x1000, PGMASK=0xfff};
+
+    constexpr static unsigned FP_REGS_SIZE = 0;
+
+    enum reg_e {
+        X0,
+        X1,
+        X2,
+        X3,
+        X4,
+        X5,
+        X6,
+        X7,
+        X8,
+        X9,
+        X10,
+        X11,
+        X12,
+        X13,
+        X14,
+        X15,
+        X16,
+        X17,
+        X18,
+        X19,
+        X20,
+        X21,
+        X22,
+        X23,
+        X24,
+        X25,
+        X26,
+        X27,
+        X28,
+        X29,
+        X30,
+        X31,
+        PC,
+        NUM_REGS,
+        NEXT_PC=NUM_REGS,
+        TRAP_STATE,
+        PENDING_TRAP,
+        MACHINE_STATE,
+        LAST_BRANCH,
+        ICOUNT,
+        ZERO = X0,
+        RA = X1,
+        SP = X2,
+        GP = X3,
+        TP = X4,
+        T0 = X5,
+        T1 = X6,
+        T2 = X7,
+        S0 = X8,
+        S1 = X9,
+        A0 = X10,
+        A1 = X11,
+        A2 = X12,
+        A3 = X13,
+        A4 = X14,
+        A5 = X15,
+        A6 = X16,
+        A7 = X17,
+        S2 = X18,
+        S3 = X19,
+        S4 = X20,
+        S5 = X21,
+        S6 = X22,
+        S7 = X23,
+        S8 = X24,
+        S9 = X25,
+        S10 = X26,
+        S11 = X27,
+        T3 = X28,
+        T4 = X29,
+        T5 = X30,
+        T6 = X31
+    };
+
+    using reg_t = uint32_t;
+
+    using addr_t = uint32_t;
+
+    using code_word_t = uint32_t; //TODO: check removal
+
+    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;
+
+    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;
+
+ 	static constexpr std::array<const uint32_t, 39> reg_bit_widths{
+ 		{32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,64}};
+
+    static constexpr std::array<const uint32_t, 40> reg_byte_offsets{
+    	{0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,160}};
+
+    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);
+
+    enum sreg_flag_e { FLAGS };
+
+    enum mem_type_e { MEM, CSR, FENCE, RES };
+};
+
+struct tgf_b: public arch_if {
+
+    using virt_addr_t = typename traits<tgf_b>::virt_addr_t;
+    using phys_addr_t = typename traits<tgf_b>::phys_addr_t;
+    using reg_t =  typename traits<tgf_b>::reg_t;
+    using addr_t = typename traits<tgf_b>::addr_t;
+
+    tgf_b();
+    ~tgf_b();
+
+    void reset(uint64_t address=0) override;
+
+    uint8_t* get_regs_base_ptr() override;
+    /// deprecated
+    void get_reg(short idx, std::vector<uint8_t>& value) override {}
+    void set_reg(short idx, const std::vector<uint8_t>& value) override {}
+    /// deprecated
+    bool get_flag(int flag) override {return false;}
+    void set_flag(int, bool value) override {};
+    /// deprecated
+    void update_flags(operations op, uint64_t opr1, uint64_t opr2) override {};
+
+    inline uint64_t get_icount() { return reg.icount; }
+
+    inline bool should_stop() { return interrupt_sim; }
+
+    inline uint64_t stop_code() { return interrupt_sim; }
+
+    inline phys_addr_t v2p(const iss::addr_t& addr){
+        if (addr.space != traits<tgf_b>::MEM || addr.type == iss::address_type::PHYSICAL ||
+                addr_mode[static_cast<uint16_t>(addr.access)&0x3]==address_type::PHYSICAL) {
+            return phys_addr_t(addr.access, addr.space, addr.val&traits<tgf_b>::addr_mask);
+        } else
+            return virt2phys(addr);
+    }
+
+    virtual phys_addr_t virt2phys(const iss::addr_t& addr);
+
+    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }
+
+    inline uint32_t get_last_branch() { return reg.last_branch; }
+
+protected:
+    struct TGF_B_regs {
+        uint32_t X0 = 0;
+        uint32_t X1 = 0;
+        uint32_t X2 = 0;
+        uint32_t X3 = 0;
+        uint32_t X4 = 0;
+        uint32_t X5 = 0;
+        uint32_t X6 = 0;
+        uint32_t X7 = 0;
+        uint32_t X8 = 0;
+        uint32_t X9 = 0;
+        uint32_t X10 = 0;
+        uint32_t X11 = 0;
+        uint32_t X12 = 0;
+        uint32_t X13 = 0;
+        uint32_t X14 = 0;
+        uint32_t X15 = 0;
+        uint32_t X16 = 0;
+        uint32_t X17 = 0;
+        uint32_t X18 = 0;
+        uint32_t X19 = 0;
+        uint32_t X20 = 0;
+        uint32_t X21 = 0;
+        uint32_t X22 = 0;
+        uint32_t X23 = 0;
+        uint32_t X24 = 0;
+        uint32_t X25 = 0;
+        uint32_t X26 = 0;
+        uint32_t X27 = 0;
+        uint32_t X28 = 0;
+        uint32_t X29 = 0;
+        uint32_t X30 = 0;
+        uint32_t X31 = 0;
+        uint32_t PC = 0;
+        uint32_t NEXT_PC = 0;
+        uint32_t trap_state = 0, pending_trap = 0, machine_state = 0, last_branch = 0;
+        uint64_t icount = 0;
+    } reg;
+
+    std::array<address_type, 4> addr_mode;
+    
+    uint64_t interrupt_sim=0;
+
+	uint32_t get_fcsr(){return 0;}
+	void set_fcsr(uint32_t val){}
+
+};
+
+}
+}            
+#endif /* _TGF_B_H_ */

incl/iss/arch/tgf_c.h

@@ -0,0 +1,252 @@
+/*******************************************************************************
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+
+#ifndef _TGF_C_H_
+#define _TGF_C_H_
+
+#include <array>
+#include <iss/arch/traits.h>
+#include <iss/arch_if.h>
+#include <iss/vm_if.h>
+
+namespace iss {
+namespace arch {
+
+struct tgf_c;
+
+template <> struct traits<tgf_c> {
+
+	constexpr static char const* const core_type = "TGF_C";
+    
+  	static constexpr std::array<const char*, 33> reg_names{
+ 		{"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31", "pc"}};
+ 
+  	static constexpr std::array<const char*, 33> reg_aliases{
+ 		{"zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", "pc"}};
+
+    enum constants {XLEN=32, PCLEN=32, MUL_LEN=64, MISA_VAL=0b1000000000000000001000100000100, PGSIZE=0x1000, PGMASK=0xfff};
+
+    constexpr static unsigned FP_REGS_SIZE = 0;
+
+    enum reg_e {
+        X0,
+        X1,
+        X2,
+        X3,
+        X4,
+        X5,
+        X6,
+        X7,
+        X8,
+        X9,
+        X10,
+        X11,
+        X12,
+        X13,
+        X14,
+        X15,
+        X16,
+        X17,
+        X18,
+        X19,
+        X20,
+        X21,
+        X22,
+        X23,
+        X24,
+        X25,
+        X26,
+        X27,
+        X28,
+        X29,
+        X30,
+        X31,
+        PC,
+        NUM_REGS,
+        NEXT_PC=NUM_REGS,
+        TRAP_STATE,
+        PENDING_TRAP,
+        MACHINE_STATE,
+        LAST_BRANCH,
+        ICOUNT,
+        ZERO = X0,
+        RA = X1,
+        SP = X2,
+        GP = X3,
+        TP = X4,
+        T0 = X5,
+        T1 = X6,
+        T2 = X7,
+        S0 = X8,
+        S1 = X9,
+        A0 = X10,
+        A1 = X11,
+        A2 = X12,
+        A3 = X13,
+        A4 = X14,
+        A5 = X15,
+        A6 = X16,
+        A7 = X17,
+        S2 = X18,
+        S3 = X19,
+        S4 = X20,
+        S5 = X21,
+        S6 = X22,
+        S7 = X23,
+        S8 = X24,
+        S9 = X25,
+        S10 = X26,
+        S11 = X27,
+        T3 = X28,
+        T4 = X29,
+        T5 = X30,
+        T6 = X31
+    };
+
+    using reg_t = uint32_t;
+
+    using addr_t = uint32_t;
+
+    using code_word_t = uint32_t; //TODO: check removal
+
+    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;
+
+    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;
+
+ 	static constexpr std::array<const uint32_t, 39> reg_bit_widths{
+ 		{32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,64}};
+
+    static constexpr std::array<const uint32_t, 40> reg_byte_offsets{
+    	{0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,160}};
+
+    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);
+
+    enum sreg_flag_e { FLAGS };
+
+    enum mem_type_e { MEM, CSR, FENCE, RES };
+};
+
+struct tgf_c: public arch_if {
+
+    using virt_addr_t = typename traits<tgf_c>::virt_addr_t;
+    using phys_addr_t = typename traits<tgf_c>::phys_addr_t;
+    using reg_t =  typename traits<tgf_c>::reg_t;
+    using addr_t = typename traits<tgf_c>::addr_t;
+
+    tgf_c();
+    ~tgf_c();
+
+    void reset(uint64_t address=0) override;
+
+    uint8_t* get_regs_base_ptr() override;
+    /// deprecated
+    void get_reg(short idx, std::vector<uint8_t>& value) override {}
+    void set_reg(short idx, const std::vector<uint8_t>& value) override {}
+    /// deprecated
+    bool get_flag(int flag) override {return false;}
+    void set_flag(int, bool value) override {};
+    /// deprecated
+    void update_flags(operations op, uint64_t opr1, uint64_t opr2) override {};
+
+    inline uint64_t get_icount() { return reg.icount; }
+
+    inline bool should_stop() { return interrupt_sim; }
+
+    inline uint64_t stop_code() { return interrupt_sim; }
+
+    inline phys_addr_t v2p(const iss::addr_t& addr){
+        if (addr.space != traits<tgf_c>::MEM || addr.type == iss::address_type::PHYSICAL ||
+                addr_mode[static_cast<uint16_t>(addr.access)&0x3]==address_type::PHYSICAL) {
+            return phys_addr_t(addr.access, addr.space, addr.val&traits<tgf_c>::addr_mask);
+        } else
+            return virt2phys(addr);
+    }
+
+    virtual phys_addr_t virt2phys(const iss::addr_t& addr);
+
+    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }
+
+    inline uint32_t get_last_branch() { return reg.last_branch; }
+
+protected:
+    struct TGF_C_regs {
+        uint32_t X0 = 0;
+        uint32_t X1 = 0;
+        uint32_t X2 = 0;
+        uint32_t X3 = 0;
+        uint32_t X4 = 0;
+        uint32_t X5 = 0;
+        uint32_t X6 = 0;
+        uint32_t X7 = 0;
+        uint32_t X8 = 0;
+        uint32_t X9 = 0;
+        uint32_t X10 = 0;
+        uint32_t X11 = 0;
+        uint32_t X12 = 0;
+        uint32_t X13 = 0;
+        uint32_t X14 = 0;
+        uint32_t X15 = 0;
+        uint32_t X16 = 0;
+        uint32_t X17 = 0;
+        uint32_t X18 = 0;
+        uint32_t X19 = 0;
+        uint32_t X20 = 0;
+        uint32_t X21 = 0;
+        uint32_t X22 = 0;
+        uint32_t X23 = 0;
+        uint32_t X24 = 0;
+        uint32_t X25 = 0;
+        uint32_t X26 = 0;
+        uint32_t X27 = 0;
+        uint32_t X28 = 0;
+        uint32_t X29 = 0;
+        uint32_t X30 = 0;
+        uint32_t X31 = 0;
+        uint32_t PC = 0;
+        uint32_t NEXT_PC = 0;
+        uint32_t trap_state = 0, pending_trap = 0, machine_state = 0, last_branch = 0;
+        uint64_t icount = 0;
+    } reg;
+
+    std::array<address_type, 4> addr_mode;
+    
+    uint64_t interrupt_sim=0;
+
+	uint32_t get_fcsr(){return 0;}
+	void set_fcsr(uint32_t val){}
+
+};
+
+}
+}            
+#endif /* _TGF_C_H_ */

incl/iss/debugger/riscv_target_adapter.h

@@ -85,7 +85,7 @@ public:
      corresponding bytes in avail_buf are 0, otherwise
      avail buf is 1 */
     status read_single_register(unsigned int reg_no, std::vector<uint8_t> &buf,
-            std::vector<uint8_t> &avail_buf) override;
+                                std::vector<uint8_t> &avail_buf) override;
 
     /* Write one register. buf is 4-byte aligned and it is in target byte
      order */
@@ -104,7 +104,7 @@ public:
     status process_query(unsigned int &mask, const rp_thread_ref &arg, rp_thread_info &info) override;
 
     status thread_list_query(int first, const rp_thread_ref &arg, std::vector<rp_thread_ref> &result, size_t max_num,
-            size_t &num, bool &done) override;
+                             size_t &num, bool &done) override;
 
     status current_thread_query(rp_thread_ref &thread) override;
 
@@ -120,12 +120,12 @@ public:
 
     status packetsize_query(std::string &out_buf) override;
 
-    status add_break(break_type type, uint64_t addr, unsigned int length) override;
+    status add_break(int type, uint64_t addr, unsigned int length) override;
 
-    status remove_break(break_type type, uint64_t addr, unsigned int length) override;
+    status remove_break(int type, uint64_t addr, unsigned int length) override;
 
     status resume_from_addr(bool step, int sig, uint64_t addr, rp_thread_ref thread,
-            std::function<void(unsigned)> stop_callback) override;
+                            std::function<void(unsigned)> stop_callback) override;
 
     status target_xml_query(std::string &out_buf) override;
 
@@ -159,8 +159,8 @@ template <typename ARCH> status riscv_target_adapter<ARCH>::is_thread_alive(rp_t
  */
 template <typename ARCH>
 status riscv_target_adapter<ARCH>::thread_list_query(int first, const rp_thread_ref &arg,
-        std::vector<rp_thread_ref> &result, size_t max_num, size_t &num,
-        bool &done) {
+                                                     std::vector<rp_thread_ref> &result, size_t max_num, size_t &num,
+                                                     bool &done) {
     if (first == 0) {
         result.clear();
         result.push_back(thread_idx);
@@ -183,8 +183,7 @@ status riscv_target_adapter<ARCH>::read_registers(std::vector<uint8_t> &data, st
     data.clear();
     avail.clear();
     const uint8_t *reg_base = core->get_regs_base_ptr();
-    auto start_reg=arch::traits<ARCH>::X0;
-    for (size_t reg_no = start_reg; reg_no < start_reg+33/*arch::traits<ARCH>::NUM_REGS*/; ++reg_no) {
+    for (size_t reg_no = 0; reg_no < arch::traits<ARCH>::NUM_REGS; ++reg_no) {
         auto reg_width = arch::traits<ARCH>::reg_bit_widths[reg_no] / 8;
         unsigned offset = traits<ARCH>::reg_byte_offsets[reg_no];
         for (size_t j = 0; j < reg_width; ++j) {
@@ -193,54 +192,40 @@ status riscv_target_adapter<ARCH>::read_registers(std::vector<uint8_t> &data, st
         }
     }
     // work around fill with F type registers
-    //    if (arch::traits<ARCH>::NUM_REGS < 65) {
-    //        auto reg_width = sizeof(typename arch::traits<ARCH>::reg_t);
-    //        for (size_t reg_no = 0; reg_no < 33; ++reg_no) {
-    //            for (size_t j = 0; j < reg_width; ++j) {
-    //                data.push_back(0x0);
-    //                avail.push_back(0x00);
-    //            }
-    //            // if(arch::traits<ARCH>::XLEN < 64)
-    //            //     for(unsigned j=0; j<4; ++j){
-    //            //         data.push_back(0x0);
-    //            //         avail.push_back(0x00);
-    //            //     }
-    //        }
-    //    }
+//    if (arch::traits<ARCH>::NUM_REGS < 65) {
+//        auto reg_width = sizeof(typename arch::traits<ARCH>::reg_t);
+//        for (size_t reg_no = 0; reg_no < 33; ++reg_no) {
+//            for (size_t j = 0; j < reg_width; ++j) {
+//                data.push_back(0x0);
+//                avail.push_back(0x00);
+//            }
+//            // if(arch::traits<ARCH>::XLEN < 64)
+//            //     for(unsigned j=0; j<4; ++j){
+//            //         data.push_back(0x0);
+//            //         avail.push_back(0x00);
+//            //     }
+//        }
+//    }
     return Ok;
 }
 
 template <typename ARCH> status riscv_target_adapter<ARCH>::write_registers(const std::vector<uint8_t> &data) {
-    auto start_reg=arch::traits<ARCH>::X0;
+    auto reg_count = arch::traits<ARCH>::NUM_REGS;
     auto *reg_base = core->get_regs_base_ptr();
     auto iter = data.data();
-    bool e_ext = arch::traits<ARCH>::PC<32;
-    for (size_t reg_no = 0; reg_no < start_reg+33/*arch::traits<ARCH>::NUM_REGS*/; ++reg_no) {
-        if(e_ext && reg_no>15){
-            if(reg_no==32){
-                auto reg_width = arch::traits<ARCH>::reg_bit_widths[arch::traits<ARCH>::PC] / 8;
-                auto offset = traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::PC];
-                std::copy(iter, iter + reg_width, reg_base);
-            } else {
-                const uint64_t zero_val=0;
-                auto reg_width = arch::traits<ARCH>::reg_bit_widths[15] / 8;
-                auto iter = (uint8_t*)&zero_val;
-                std::copy(iter, iter + reg_width, reg_base);
-            }
-        } else {
-            auto reg_width = arch::traits<ARCH>::reg_bit_widths[reg_no] / 8;
-            auto offset = traits<ARCH>::reg_byte_offsets[reg_no];
-            std::copy(iter, iter + reg_width, reg_base);
-            iter += 4;
-            reg_base += offset;
-        }
+    for (size_t reg_no = 0; reg_no < reg_count; ++reg_no) {
+        auto reg_width = arch::traits<ARCH>::reg_bit_widths[static_cast<typename arch::traits<ARCH>::reg_e>(reg_no)] / 8;
+        auto offset = traits<ARCH>::reg_byte_offsets[reg_no];
+        std::copy(iter, iter + reg_width, reg_base);
+        iter += 4;
+        reg_base += offset;
     }
     return Ok;
 }
 
 template <typename ARCH>
 status riscv_target_adapter<ARCH>::read_single_register(unsigned int reg_no, std::vector<uint8_t> &data,
-        std::vector<uint8_t> &avail) {
+                                                        std::vector<uint8_t> &avail) {
     if (reg_no < 65) {
         // auto reg_size = arch::traits<ARCH>::reg_bit_width(static_cast<typename
         // arch::traits<ARCH>::reg_e>(reg_no))/8;
@@ -331,48 +316,34 @@ template <typename ARCH> status riscv_target_adapter<ARCH>::packetsize_query(std
     return Ok;
 }
 
-template <typename ARCH> status riscv_target_adapter<ARCH>::add_break(break_type type, uint64_t addr, unsigned int length) {
-    switch(type) {
-    default:
-        return Err;
-    case SW_EXEC:
-    case HW_EXEC: {
-        auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
-        auto eaddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr + length});
-        target_adapter_base::bp_lut.addEntry(++target_adapter_base::bp_count, saddr.val, eaddr.val - saddr.val);
-        LOG(TRACE) << "Adding breakpoint with handle " << target_adapter_base::bp_count << " for addr 0x" << std::hex
-                << saddr.val << std::dec;
+template <typename ARCH> status riscv_target_adapter<ARCH>::add_break(int type, uint64_t addr, unsigned int length) {
+    auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
+    auto eaddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr + length});
+    target_adapter_base::bp_lut.addEntry(++target_adapter_base::bp_count, saddr.val, eaddr.val - saddr.val);
+    LOG(TRACE) << "Adding breakpoint with handle " << target_adapter_base::bp_count << " for addr 0x" << std::hex
+               << saddr.val << std::dec;
+    LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
+    return Ok;
+}
+
+template <typename ARCH> status riscv_target_adapter<ARCH>::remove_break(int type, uint64_t addr, unsigned int length) {
+    auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
+    unsigned handle = target_adapter_base::bp_lut.getEntry(saddr.val);
+    if (handle) {
+        LOG(TRACE) << "Removing breakpoint with handle " << handle << " for addr 0x" << std::hex << saddr.val
+                   << std::dec;
+        // TODO: check length of addr range
+        target_adapter_base::bp_lut.removeEntry(handle);
         LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
         return Ok;
     }
-    }
-}
-
-template <typename ARCH> status riscv_target_adapter<ARCH>::remove_break(break_type type, uint64_t addr, unsigned int length) {
-    switch(type) {
-    default:
-        return Err;
-    case SW_EXEC:
-    case HW_EXEC: {
-        auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
-        unsigned handle = target_adapter_base::bp_lut.getEntry(saddr.val);
-        if (handle) {
-            LOG(TRACE) << "Removing breakpoint with handle " << handle << " for addr 0x" << std::hex << saddr.val
-                    << std::dec;
-            // TODO: check length of addr range
-            target_adapter_base::bp_lut.removeEntry(handle);
-            LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
-            return Ok;
-        }
-        LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
-        return Err;
-    }
-    }
+    LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
+    return Err;
 }
 
 template <typename ARCH>
 status riscv_target_adapter<ARCH>::resume_from_addr(bool step, int sig, uint64_t addr, rp_thread_ref thread,
-        std::function<void(unsigned)> stop_callback) {
+                                                    std::function<void(unsigned)> stop_callback) {
     auto *reg_base = core->get_regs_base_ptr();
     auto reg_width = arch::traits<ARCH>::reg_bit_widths[arch::traits<ARCH>::PC] / 8;
     auto offset = traits<ARCH>::reg_byte_offsets[arch::traits<ARCH>::PC];
@@ -383,42 +354,42 @@ status riscv_target_adapter<ARCH>::resume_from_addr(bool step, int sig, uint64_t
 
 template <typename ARCH> status riscv_target_adapter<ARCH>::target_xml_query(std::string &out_buf) {
     const std::string res{"<?xml version=\"1.0\"?><!DOCTYPE target SYSTEM \"gdb-target.dtd\">"
-        "<target><architecture>riscv:rv32</architecture>"
-        //"  <feature name=\"org.gnu.gdb.riscv.rv32i\">\n"
-        //"    <reg name=\"x0\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x1\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x2\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x3\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x4\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x5\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x6\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x7\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x8\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x9\"  bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x10\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x11\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x12\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x13\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x14\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x15\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x16\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x17\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x18\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x19\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x20\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x21\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x22\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x23\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x24\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x25\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x26\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x27\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x28\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x29\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x30\" bitsize=\"32\" group=\"general\"/>\n"
-        //"    <reg name=\"x31\" bitsize=\"32\" group=\"general\"/>\n"
-        //"  </feature>\n"
-        "</target>"};
+                          "<target><architecture>riscv:rv32</architecture>"
+                          //"  <feature name=\"org.gnu.gdb.riscv.rv32i\">\n"
+                          //"    <reg name=\"x0\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x1\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x2\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x3\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x4\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x5\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x6\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x7\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x8\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x9\"  bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x10\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x11\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x12\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x13\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x14\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x15\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x16\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x17\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x18\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x19\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x20\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x21\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x22\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x23\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x24\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x25\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x26\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x27\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x28\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x29\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x30\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"    <reg name=\"x31\" bitsize=\"32\" group=\"general\"/>\n"
+                          //"  </feature>\n"
+                          "</target>"};
     out_buf = res;
     return Ok;
 }

incl/iss/plugin/cycle_estimate.h

@@ -37,25 +37,23 @@
 
 #include "iss/instrumentation_if.h"
 #include "iss/vm_plugin.h"
+#include <json/json.h>
 #include <string>
 #include <unordered_map>
-#include <vector>
 
 namespace iss {
 
 namespace plugin {
 
-class cycle_estimate: public vm_plugin {
+class cycle_estimate: public iss::vm_plugin {
 	BEGIN_BF_DECL(instr_desc, uint32_t)
 		BF_FIELD(taken, 24, 8)
 		BF_FIELD(not_taken, 16, 8)
-        BF_FIELD(is_branch, 8, 8)
-        BF_FIELD(size, 0, 8)
-		instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken, bool branch): instr_desc() {
+		BF_FIELD(size, 0, 16)
+		instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken): instr_desc() {
 			this->size=size;
 			this->taken=taken;
 			this->not_taken=not_taken;
-			this->is_branch=branch;
 		}
 	END_BF_DECL();
 
@@ -66,7 +64,7 @@ public:
 
     cycle_estimate(const cycle_estimate &&) = delete;
 
-    cycle_estimate(std::string const& config_file_name);
+    cycle_estimate(std::string config_file_name);
 
     virtual ~cycle_estimate();
 
@@ -78,10 +76,10 @@ public:
 
     sync_type get_sync() override { return POST_SYNC; };
 
-    void callback(instr_info_t instr_info, exec_info const&) override;
+    void callback(instr_info_t instr_info) override;
 
 private:
-    iss::instrumentation_if *instr_if;
+    iss::instrumentation_if *arch_instr;
     std::vector<instr_desc> delays;
     struct pair_hash {
         size_t operator()(const std::pair<uint64_t, uint64_t> &p) const {
@@ -90,7 +88,7 @@ private:
         }
     };
     std::unordered_map<std::pair<uint64_t, uint64_t>, uint64_t, pair_hash> blocks;
-    std::string config_file_name;
+    Json::Value root;
 };
 }
 }

incl/iss/plugin/instruction_count.h

@@ -69,7 +69,7 @@ public:
 
     sync_type get_sync() override { return POST_SYNC; };
 
-    void callback(instr_info_t, exec_info const&) override;
+    void callback(instr_info_t instr_info) override;
 
 private:
     Json::Value root;

incl/sysc/core_complex.h

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (C) 2017-2021 MINRES Technologies GmbH
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -30,27 +30,34 @@
  *
  *******************************************************************************/
 
-#ifndef _SYSC_CORE_COMPLEX_H_
-#define _SYSC_CORE_COMPLEX_H_
+#ifndef _SYSC_SIFIVE_FE310_H_
+#define _SYSC_SIFIVE_FE310_H_
 
-#include <tlm/scc/initiator_mixin.h>
-#include <scc/traceable.h>
-#include <scc/tick2time.h>
-#include <scc/utilities.h>
 #include <tlm/scc/scv/tlm_rec_initiator_socket.h>
-#ifdef CWR_SYSTEMC
-#include <scmlinc/scml_property.h>
-#else
+#include "tlm/scc/initiator_mixin.h"
+#include "scc/traceable.h"
+#include "scc/utilities.h"
 #include <cci_configuration>
-#endif
 #include <tlm>
+#include <tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_core_ifs.h>
 #include <tlm_utils/tlm_quantumkeeper.h>
 #include <util/range_lut.h>
-#include <memory>
+
+class scv_tr_db;
+class scv_tr_stream;
+struct _scv_tr_generator_default_data;
+template <class T_begin, class T_end> class scv_tr_generator;
 
 namespace iss {
-    class vm_plugin;
+class vm_if;
+namespace arch {
+template <typename BASE> class riscv_hart_m_p;
 }
+namespace debugger {
+class target_adapter_if;
+}
+} // namespace iss
+
 namespace sysc {
 
 class tlm_dmi_ext : public tlm::tlm_dmi {
@@ -63,17 +70,18 @@ public:
     bool operator!=(const tlm_dmi_ext &o) const { return !operator==(o); }
 };
 
-namespace tgfs {
+namespace SiFive {
 class core_wrapper;
-struct core_trace;
 
 class core_complex : public sc_core::sc_module, public scc::traceable {
 public:
-    tlm::scc::initiator_mixin<tlm::tlm_initiator_socket<32>> initiator{"intor"};
+    tlm::scc::initiator_mixin<tlm::scc::scv::tlm_rec_initiator_socket<32>> initiator{"intor"};
+
+    sc_core::sc_in<sc_core::sc_time> clk_i{"clk_i"};
 
     sc_core::sc_in<bool> rst_i{"rst_i"};
 
-    sc_core::sc_in<bool> ext_irq_i{"ext_irq_i"};
+    sc_core::sc_in<bool> global_irq_i{"global_irq_i"};
 
     sc_core::sc_in<bool> timer_irq_i{"timer_irq_i"};
 
@@ -81,10 +89,7 @@ public:
 
     sc_core::sc_vector<sc_core::sc_in<bool>> local_irq_i{"local_irq_i", 16};
 
-#ifndef CWR_SYSTEMC
-	sc_core::sc_in<sc_core::sc_time> clk_i{"clk_i"};
-
-    sc_core::sc_port<tlm::tlm_peek_if<uint64_t>, 1, sc_core::SC_ZERO_OR_MORE_BOUND> mtime_o{"mtime_o"};
+    sc_core::sc_port<tlm::tlm_peek_if<uint64_t>, 1, sc_core::SC_ZERO_OR_MORE_BOUND> mtime_o;
 
     cci::cci_param<std::string> elf_file{"elf_file", ""};
 
@@ -92,9 +97,7 @@ public:
 
     cci::cci_param<uint64_t> reset_address{"reset_address", 0ULL};
 
-    cci::cci_param<std::string> core_type{"core_type", "tgc_c"};
-
-    cci::cci_param<std::string> backend{"backend", "interp"};
+    cci::cci_param<std::string> backend{"backend", "tcc"};
 
     cci::cci_param<unsigned short> gdb_server_port{"gdb_server_port", 0};
 
@@ -102,51 +105,7 @@ public:
 
     cci::cci_param<uint32_t> mhartid{"mhartid", 0};
 
-    cci::cci_param<std::string> plugins{"plugins", ""};
-
-    core_complex(sc_core::sc_module_name const& name);
-
-#else
-	sc_core::sc_in<bool> clk_i{"clk_i"};
-
-	sc_core::sc_in<uint64_t> mtime_i{"mtime_i"};
-
-	scml_property<std::string> elf_file{"elf_file", ""};
-
-    scml_property<bool> enable_disass{"enable_disass", false};
-
-    scml_property<unsigned long long> reset_address{"reset_address", 0ULL};
-
-    scml_property<std::string> core_type{"core_type", "tgc_c"};
-
-    scml_property<std::string> backend{"backend", "interp"};
-
-    scml_property<unsigned> gdb_server_port{"gdb_server_port", 0};
-
-    scml_property<bool> dump_ir{"dump_ir", false};
-
-    scml_property<uint32_t> mhartid{"mhartid", 0};
-
-    scml_property<std::string> plugins{"plugins", ""};
-
-    core_complex(sc_core::sc_module_name const& name)
-    : sc_module(name)
-    , local_irq_i{"local_irq_i", 16}
-    , elf_file{"elf_file", ""}
-    , enable_disass{"enable_disass", false}
-    , reset_address{"reset_address", 0ULL}
-    , core_type{"core_type", "tgc_c"}
-    , backend{"backend", "interp"}
-    , gdb_server_port{"gdb_server_port", 0}
-    , dump_ir{"dump_ir", false}
-    , mhartid{"mhartid", 0}
-    , read_lut(tlm_dmi_ext())
-    , write_lut(tlm_dmi_ext())
-    {
-    	init();
-    }
-
-#endif
+    core_complex(sc_core::sc_module_name name);
 
     ~core_complex();
 
@@ -170,33 +129,38 @@ public:
 
     void trace(sc_core::sc_trace_file *trf) const override;
 
-    bool disass_output(uint64_t pc, const std::string instr);
+    void disass_output(uint64_t pc, const std::string instr);
 
-    void set_clock_period(sc_core::sc_time period);
 protected:
     void before_end_of_elaboration() override;
     void start_of_simulation() override;
-	void forward();
     void run();
+    void clk_cb();
     void rst_cb();
     void sw_irq_cb();
     void timer_irq_cb();
-    void ext_irq_cb();
-    void local_irq_cb();
+    void global_irq_cb();
     uint64_t last_sync_cycle = 0;
     util::range_lut<tlm_dmi_ext> read_lut, write_lut;
     tlm_utils::tlm_quantumkeeper quantum_keeper;
     std::vector<uint8_t> write_buf;
-    core_wrapper* cpu{nullptr};
-    sc_core::sc_signal<sc_core::sc_time> curr_clk;
-    core_trace* trc{nullptr};
-    std::unique_ptr<scc::tick2time> t2t;
-private:
-    void init();
-    std::vector<iss::vm_plugin *> plugin_list;
-
+    std::unique_ptr<core_wrapper> cpu;
+    std::unique_ptr<iss::vm_if> vm;
+    sc_core::sc_time curr_clk;
+    iss::debugger::target_adapter_if *tgt_adapter;
+#ifdef WITH_SCV
+    //! transaction recording database
+    scv_tr_db *m_db;
+    //! blocking transaction recording stream handle
+    scv_tr_stream *stream_handle;
+    //! transaction generator handle for blocking transactions
+    scv_tr_generator<_scv_tr_generator_default_data, _scv_tr_generator_default_data> *instr_tr_handle;
+    scv_tr_generator<uint64_t, _scv_tr_generator_default_data> *fetch_tr_handle;
+    scv_tr_handle tr_handle;
+#endif
 };
+
 } /* namespace SiFive */
 } /* namespace sysc */
 
-#endif /* _SYSC_CORE_COMPLEX_H_ */
+#endif /* _SYSC_SIFIVE_FE310_H_ */

softfloat/build/Linux-x86_64-GCC/platform.h

@@ -49,9 +49,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /*----------------------------------------------------------------------------
 *----------------------------------------------------------------------------*/
-#ifdef __GNUC__
 #define SOFTFLOAT_BUILTIN_CLZ 1
 #define SOFTFLOAT_INTRINSIC_INT128 1
-#endif
 #include "opts-GCC.h"
 

src-gen/.gitignore

@@ -1,2 +0,0 @@
-/iss
-/vm

src/iss/.gitignore

@@ -1 +0,0 @@
-/tgc_*.cpp

src/iss/arch/hwl.h

@@ -1,100 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2022 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Contributors:
- *       eyck@minres.com - initial implementation
- ******************************************************************************/
-
-#ifndef _RISCV_HART_M_P_HWL_H
-#define _RISCV_HART_M_P_HWL_H
-
-#include <iss/vm_types.h>
-
-namespace iss {
-namespace arch {
-
-template <typename BASE> class hwl : public BASE {
-public:
-    using base_class = BASE;
-    using this_class = hwl<BASE>;
-    using reg_t = typename BASE::reg_t;
-
-    hwl();
-    virtual ~hwl() = default;
-
-protected:
-    iss::status read_custom_csr_reg(unsigned addr, reg_t &val) override;
-    iss::status write_custom_csr_reg(unsigned addr, reg_t val) override;
-};
-
-
-template<typename BASE>
-inline hwl<BASE>::hwl() {
-    for (unsigned addr = 0x800; addr < 0x803; ++addr){
-        this->register_custom_csr_rd(addr);
-        this->register_custom_csr_wr(addr);
-    }
-    for (unsigned addr = 0x804; addr < 0x807; ++addr){
-        this->register_custom_csr_rd(addr);
-        this->register_custom_csr_wr(addr);
-    }
-}
-
-template<typename BASE>
-inline iss::status iss::arch::hwl<BASE>::read_custom_csr_reg(unsigned addr, reg_t &val) {
-    switch(addr){
-    case 0x800: val = this->reg.lpstart0; break;
-    case 0x801: val = this->reg.lpend0;   break;
-    case 0x802: val = this->reg.lpcount0; break;
-    case 0x804: val = this->reg.lpstart1; break;
-    case 0x805: val = this->reg.lpend1;   break;
-    case 0x806: val = this->reg.lpcount1; break;
-    }
-    return iss::Ok;
-}
-
-template<typename BASE>
-inline iss::status iss::arch::hwl<BASE>::write_custom_csr_reg(unsigned addr, reg_t val) {
-    switch(addr){
-    case 0x800: this->reg.lpstart0 = val; break;
-    case 0x801: this->reg.lpend0   = val; break;
-    case 0x802: this->reg.lpcount0 = val; break;
-    case 0x804: this->reg.lpstart1 = val; break;
-    case 0x805: this->reg.lpend1   = val; break;
-    case 0x806: this->reg.lpcount1 = val; break;
-    }
-    return iss::Ok;
-}
-
-} // namespace arch
-} // namespace iss
-
-
-#endif /* _RISCV_HART_M_P_H */

src/iss/arch/riscv_hart_common.h

@@ -1,295 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017, 2018, 2021 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Contributors:
- *       eyck@minres.com - initial implementation
- ******************************************************************************/
-
-#ifndef _RISCV_HART_COMMON
-#define _RISCV_HART_COMMON
-
-#include "iss/arch_if.h"
-#include <cstdint>
-
-namespace iss {
-namespace arch {
-
-enum { tohost_dflt = 0xF0001000, fromhost_dflt = 0xF0001040 };
-
-enum features_e{FEAT_NONE, FEAT_PMP=1, FEAT_EXT_N=2, FEAT_CLIC=4, FEAT_DEBUG=8, FEAT_TCM=16};
-
-enum riscv_csr {
-    /* user-level CSR */
-    // User Trap Setup
-    ustatus = 0x000,
-    uie = 0x004,
-    utvec = 0x005,
-    // User Trap Handling
-    uscratch = 0x040,
-    uepc = 0x041,
-    ucause = 0x042,
-    utval = 0x043,
-    uip = 0x044,
-    // User Floating-Point CSRs
-    fflags = 0x001,
-    frm = 0x002,
-    fcsr = 0x003,
-    // User Counter/Timers
-    cycle = 0xC00,
-    time = 0xC01,
-    instret = 0xC02,
-    hpmcounter3 = 0xC03,
-    hpmcounter4 = 0xC04,
-    /*...*/
-    hpmcounter31 = 0xC1F,
-    cycleh = 0xC80,
-    timeh = 0xC81,
-    instreth = 0xC82,
-    hpmcounter3h = 0xC83,
-    hpmcounter4h = 0xC84,
-    /*...*/
-    hpmcounter31h = 0xC9F,
-    /* supervisor-level CSR */
-    // Supervisor Trap Setup
-    sstatus = 0x100,
-    sedeleg = 0x102,
-    sideleg = 0x103,
-    sie = 0x104,
-    stvec = 0x105,
-    scounteren = 0x106,
-    // Supervisor Trap Handling
-    sscratch = 0x140,
-    sepc = 0x141,
-    scause = 0x142,
-    stval = 0x143,
-    sip = 0x144,
-    // Supervisor Protection and Translation
-    satp = 0x180,
-    /* machine-level CSR */
-    // Machine Information Registers
-    mvendorid = 0xF11,
-    marchid = 0xF12,
-    mimpid = 0xF13,
-    mhartid = 0xF14,
-    // Machine Trap Setup
-    mstatus = 0x300,
-    misa = 0x301,
-    medeleg = 0x302,
-    mideleg = 0x303,
-    mie = 0x304,
-    mtvec = 0x305,
-    mcounteren = 0x306,
-    mtvt = 0x307, //CLIC
-    // Machine Trap Handling
-    mscratch = 0x340,
-    mepc = 0x341,
-    mcause = 0x342,
-    mtval = 0x343,
-    mip = 0x344,
-    mxnti = 0x345, //CLIC
-    mintstatus   = 0xFB1, // MRW Current interrupt levels (CLIC) - addr subject to change
-    mintthresh   = 0x347, // MRW Interrupt-level threshold (CLIC) - addr subject to change
-    mscratchcsw  = 0x348, // MRW Conditional scratch swap on priv mode change (CLIC)
-    mscratchcswl = 0x349, // MRW Conditional scratch swap on level change (CLIC)
-    // Physical Memory Protection
-    pmpcfg0 = 0x3A0,
-    pmpcfg1 = 0x3A1,
-    pmpcfg2 = 0x3A2,
-    pmpcfg3 = 0x3A3,
-    pmpaddr0 = 0x3B0,
-    pmpaddr1 = 0x3B1,
-    pmpaddr2 = 0x3B2,
-    pmpaddr3 = 0x3B3,
-    pmpaddr4 = 0x3B4,
-    pmpaddr5 = 0x3B5,
-    pmpaddr6 = 0x3B6,
-    pmpaddr7 = 0x3B7,
-    pmpaddr8 = 0x3B8,
-    pmpaddr9 = 0x3B9,
-    pmpaddr10 = 0x3BA,
-    pmpaddr11 = 0x3BB,
-    pmpaddr12 = 0x3BC,
-    pmpaddr13 = 0x3BD,
-    pmpaddr14 = 0x3BE,
-    pmpaddr15 = 0x3BF,
-    // Machine Counter/Timers
-    mcycle = 0xB00,
-    minstret = 0xB02,
-    mhpmcounter3 = 0xB03,
-    mhpmcounter4 = 0xB04,
-    /*...*/
-    mhpmcounter31 = 0xB1F,
-    mcycleh = 0xB80,
-    minstreth = 0xB82,
-    mhpmcounter3h = 0xB83,
-    mhpmcounter4h = 0xB84,
-    /*...*/
-    mhpmcounter31h = 0xB9F,
-    // Machine Counter Setup
-    mhpmevent3 = 0x323,
-    mhpmevent4 = 0x324,
-    /*...*/
-    mhpmevent31 = 0x33F,
-    // Debug/Trace Registers (shared with Debug Mode)
-    tselect = 0x7A0,
-    tdata1 = 0x7A1,
-    tdata2 = 0x7A2,
-    tdata3 = 0x7A3,
-    // Debug Mode Registers
-    dcsr = 0x7B0,
-    dpc = 0x7B1,
-    dscratch0 = 0x7B2,
-    dscratch1 = 0x7B3
-};
-
-
-enum {
-    PGSHIFT = 12,
-    PTE_PPN_SHIFT = 10,
-    // page table entry (PTE) fields
-    PTE_V = 0x001,   // Valid
-    PTE_R = 0x002,   // Read
-    PTE_W = 0x004,   // Write
-    PTE_X = 0x008,   // Execute
-    PTE_U = 0x010,   // User
-    PTE_G = 0x020,   // Global
-    PTE_A = 0x040,   // Accessed
-    PTE_D = 0x080,   // Dirty
-    PTE_SOFT = 0x300 // Reserved for Software
-};
-
-template <typename T> inline bool PTE_TABLE(T PTE) { return (((PTE) & (PTE_V | PTE_R | PTE_W | PTE_X)) == PTE_V); }
-
-enum { PRIV_U = 0, PRIV_S = 1, PRIV_M = 3, PRIV_D = 4};
-
-enum {
-    ISA_A = 1,
-    ISA_B = 1 << 1,
-    ISA_C = 1 << 2,
-    ISA_D = 1 << 3,
-    ISA_E = 1 << 4,
-    ISA_F = 1 << 5,
-    ISA_G = 1 << 6,
-    ISA_I = 1 << 8,
-    ISA_M = 1 << 12,
-    ISA_N = 1 << 13,
-    ISA_Q = 1 << 16,
-    ISA_S = 1 << 18,
-    ISA_U = 1 << 20
-};
-
-struct vm_info {
-    int levels;
-    int idxbits;
-    int ptesize;
-    uint64_t ptbase;
-    bool is_active() { return levels; }
-};
-
-struct feature_config {
-    uint64_t clic_base{0xc0000000};
-    unsigned clic_num_irq{16};
-    unsigned clic_num_trigger{0};
-    uint64_t tcm_base{0x10000000};
-    uint64_t tcm_size{0x8000};
-};
-
-class trap_load_access_fault : public trap_access {
-public:
-    trap_load_access_fault(uint64_t badaddr)
-    : trap_access(5 << 16, badaddr) {}
-};
-class illegal_instruction_fault : public trap_access {
-public:
-    illegal_instruction_fault(uint64_t badaddr)
-    : trap_access(2 << 16, badaddr) {}
-};
-class trap_instruction_page_fault : public trap_access {
-public:
-    trap_instruction_page_fault(uint64_t badaddr)
-    : trap_access(12 << 16, badaddr) {}
-};
-class trap_load_page_fault : public trap_access {
-public:
-    trap_load_page_fault(uint64_t badaddr)
-    : trap_access(13 << 16, badaddr) {}
-};
-class trap_store_page_fault : public trap_access {
-public:
-    trap_store_page_fault(uint64_t badaddr)
-    : trap_access(15 << 16, badaddr) {}
-};
-
-inline void read_reg_uint32(uint64_t offs, uint32_t& reg, uint8_t *const data, unsigned length) {
-    auto reg_ptr = reinterpret_cast<uint8_t*>(&reg);
-    switch (offs & 0x3) {
-    case 0:
-        for (auto i = 0U; i < length; ++i)
-            *(data + i) = *(reg_ptr + i);
-    break;
-    case 1:
-        for (auto i = 0U; i < length; ++i)
-            *(data + i) = *(reg_ptr + 1 + i);
-    break;
-    case 2:
-        for (auto i = 0U; i < length; ++i)
-            *(data + i) = *(reg_ptr + 2 + i);
-    break;
-    case 3:
-        *data = *(reg_ptr + 3);
-    break;
-    }
-}
-
-inline void write_reg_uint32(uint64_t offs, uint32_t& reg, const uint8_t *const data, unsigned length) {
-    auto reg_ptr = reinterpret_cast<uint8_t*>(&reg);
-    switch (offs & 0x3) {
-    case 0:
-        for (auto i = 0U; i < length; ++i)
-            *(reg_ptr + i) = *(data + i);
-    break;
-    case 1:
-        for (auto i = 0U; i < length; ++i)
-            *(reg_ptr + 1 + i) = *(data + i);
-    break;
-    case 2:
-        for (auto i = 0U; i < length; ++i)
-            *(reg_ptr + 2 + i) = *(data + i);
-    break;
-    case 3:
-        *(reg_ptr + 3) = *data ;
-    break;
-    }
-}
-
-}
-}
-
-#endif

src/iss/arch/tgc_c.h

@@ -1,270 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017 - 2021 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- *******************************************************************************/
-
-#ifndef _TGC_C_H_
-#define _TGC_C_H_
-
-#include <array>
-#include <iss/arch/traits.h>
-#include <iss/arch_if.h>
-#include <iss/vm_if.h>
-
-namespace iss {
-namespace arch {
-
-struct tgc_c;
-
-template <> struct traits<tgc_c> {
-
-    constexpr static char const* const core_type = "TGC_C";
-    
-    static constexpr std::array<const char*, 36> reg_names{
-        {"X0", "X1", "X2", "X3", "X4", "X5", "X6", "X7", "X8", "X9", "X10", "X11", "X12", "X13", "X14", "X15", "X16", "X17", "X18", "X19", "X20", "X21", "X22", "X23", "X24", "X25", "X26", "X27", "X28", "X29", "X30", "X31", "PC", "NEXT_PC", "PRIV", "DPC"}};
- 
-    static constexpr std::array<const char*, 36> reg_aliases{
-        {"ZERO", "RA", "SP", "GP", "TP", "T0", "T1", "T2", "S0", "S1", "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9", "S10", "S11", "T3", "T4", "T5", "T6", "PC", "NEXT_PC", "PRIV", "DPC"}};
-
-    enum constants {MISA_VAL=0b01000000000000000001000100000100, MARCHID_VAL=0x80000003, XLEN=32, INSTR_ALIGNMENT=2, RFS=32, fence=0, fencei=1, fencevmal=2, fencevmau=3, CSR_SIZE=4096, MUL_LEN=64};
-
-    constexpr static unsigned FP_REGS_SIZE = 0;
-
-    enum reg_e {
-        X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17, X18, X19, X20, X21, X22, X23, X24, X25, X26, X27, X28, X29, X30, X31, PC, NEXT_PC, PRIV, DPC, NUM_REGS
-    };
-
-    using reg_t = uint32_t;
-
-    using addr_t = uint32_t;
-
-    using code_word_t = uint32_t; //TODO: check removal
-
-    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;
-
-    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;
-
-    static constexpr std::array<const uint32_t, 36> reg_bit_widths{
-        {32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,8,32}};
-
-    static constexpr std::array<const uint32_t, 36> reg_byte_offsets{
-        {0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,137}};
-
-    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);
-
-    enum sreg_flag_e { FLAGS };
-
-    enum mem_type_e { MEM, FENCE, RES, CSR };
-    
-    enum class opcode_e : unsigned short {
-        LUI = 0,
-        AUIPC = 1,
-        JAL = 2,
-        JALR = 3,
-        BEQ = 4,
-        BNE = 5,
-        BLT = 6,
-        BGE = 7,
-        BLTU = 8,
-        BGEU = 9,
-        LB = 10,
-        LH = 11,
-        LW = 12,
-        LBU = 13,
-        LHU = 14,
-        SB = 15,
-        SH = 16,
-        SW = 17,
-        ADDI = 18,
-        SLTI = 19,
-        SLTIU = 20,
-        XORI = 21,
-        ORI = 22,
-        ANDI = 23,
-        SLLI = 24,
-        SRLI = 25,
-        SRAI = 26,
-        ADD = 27,
-        SUB = 28,
-        SLL = 29,
-        SLT = 30,
-        SLTU = 31,
-        XOR = 32,
-        SRL = 33,
-        SRA = 34,
-        OR = 35,
-        AND = 36,
-        FENCE = 37,
-        ECALL = 38,
-        EBREAK = 39,
-        MRET = 40,
-        WFI = 41,
-        CSRRW = 42,
-        CSRRS = 43,
-        CSRRC = 44,
-        CSRRWI = 45,
-        CSRRSI = 46,
-        CSRRCI = 47,
-        FENCE_I = 48,
-        MUL = 49,
-        MULH = 50,
-        MULHSU = 51,
-        MULHU = 52,
-        DIV = 53,
-        DIVU = 54,
-        REM = 55,
-        REMU = 56,
-        CADDI4SPN = 57,
-        CLW = 58,
-        CSW = 59,
-        CADDI = 60,
-        CNOP = 61,
-        CJAL = 62,
-        CLI = 63,
-        CLUI = 64,
-        CADDI16SP = 65,
-        __reserved_clui = 66,
-        CSRLI = 67,
-        CSRAI = 68,
-        CANDI = 69,
-        CSUB = 70,
-        CXOR = 71,
-        COR = 72,
-        CAND = 73,
-        CJ = 74,
-        CBEQZ = 75,
-        CBNEZ = 76,
-        CSLLI = 77,
-        CLWSP = 78,
-        CMV = 79,
-        CJR = 80,
-        __reserved_cmv = 81,
-        CADD = 82,
-        CJALR = 83,
-        CEBREAK = 84,
-        CSWSP = 85,
-        DII = 86,
-        MAX_OPCODE
-    };
-};
-
-struct tgc_c: public arch_if {
-
-    using virt_addr_t = typename traits<tgc_c>::virt_addr_t;
-    using phys_addr_t = typename traits<tgc_c>::phys_addr_t;
-    using reg_t =  typename traits<tgc_c>::reg_t;
-    using addr_t = typename traits<tgc_c>::addr_t;
-
-    tgc_c();
-    ~tgc_c();
-
-    void reset(uint64_t address=0) override;
-
-    uint8_t* get_regs_base_ptr() override;
-
-    inline uint64_t get_icount() { return icount; }
-
-    inline bool should_stop() { return interrupt_sim; }
-
-    inline uint64_t stop_code() { return interrupt_sim; }
-
-    inline phys_addr_t v2p(const iss::addr_t& addr){
-        if (addr.space != traits<tgc_c>::MEM || addr.type == iss::address_type::PHYSICAL ||
-                addr_mode[static_cast<uint16_t>(addr.access)&0x3]==address_type::PHYSICAL) {
-            return phys_addr_t(addr.access, addr.space, addr.val&traits<tgc_c>::addr_mask);
-        } else
-            return virt2phys(addr);
-    }
-
-    virtual phys_addr_t virt2phys(const iss::addr_t& addr);
-
-    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }
-
-    inline uint32_t get_last_branch() { return last_branch; }
-
-
-#pragma pack(push, 1)
-    struct TGC_C_regs { 
-        uint32_t X0 = 0; 
-        uint32_t X1 = 0; 
-        uint32_t X2 = 0; 
-        uint32_t X3 = 0; 
-        uint32_t X4 = 0; 
-        uint32_t X5 = 0; 
-        uint32_t X6 = 0; 
-        uint32_t X7 = 0; 
-        uint32_t X8 = 0; 
-        uint32_t X9 = 0; 
-        uint32_t X10 = 0; 
-        uint32_t X11 = 0; 
-        uint32_t X12 = 0; 
-        uint32_t X13 = 0; 
-        uint32_t X14 = 0; 
-        uint32_t X15 = 0; 
-        uint32_t X16 = 0; 
-        uint32_t X17 = 0; 
-        uint32_t X18 = 0; 
-        uint32_t X19 = 0; 
-        uint32_t X20 = 0; 
-        uint32_t X21 = 0; 
-        uint32_t X22 = 0; 
-        uint32_t X23 = 0; 
-        uint32_t X24 = 0; 
-        uint32_t X25 = 0; 
-        uint32_t X26 = 0; 
-        uint32_t X27 = 0; 
-        uint32_t X28 = 0; 
-        uint32_t X29 = 0; 
-        uint32_t X30 = 0; 
-        uint32_t X31 = 0; 
-        uint32_t PC = 0; 
-        uint32_t NEXT_PC = 0; 
-        uint8_t PRIV = 0; 
-        uint32_t DPC = 0;
-    } reg;
-#pragma pack(pop)
-    uint32_t trap_state = 0, pending_trap = 0;
-    uint64_t icount = 0;
-    uint64_t cycle = 0;
-    uint64_t instret = 0;
-    uint32_t instruction = 0;
-    uint32_t last_branch = 0;
-    std::array<address_type, 4> addr_mode;
-    
-    uint64_t interrupt_sim=0;
-
-    uint32_t get_fcsr(){return 0;}
-    void set_fcsr(uint32_t val){}
-
-};
-
-}
-}            
-#endif /* _TGC_C_H_ */

src/iss/arch/tgc_c_decoder.cpp

@@ -1,175 +0,0 @@
-#include "tgc_c.h"
-#include <vector>
-#include <array>
-#include <cstdlib>
-#include <algorithm>
-
-namespace iss {
-namespace arch {
-namespace {
-// according to
-// https://stackoverflow.com/questions/8871204/count-number-of-1s-in-binary-representation
-#ifdef __GCC__
-constexpr size_t bit_count(uint32_t u) { return __builtin_popcount(u); }
-#elif __cplusplus < 201402L
-constexpr size_t uCount(uint32_t u) { return u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111); }
-constexpr size_t bit_count(uint32_t u) { return ((uCount(u) + (uCount(u) >> 3)) & 030707070707) % 63; }
-#else
-constexpr size_t bit_count(uint32_t u) {
-    size_t uCount = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
-    return ((uCount + (uCount >> 3)) & 030707070707) % 63;
-}
-#endif
-
-using opcode_e = traits<tgc_c>::opcode_e;
-
-/****************************************************************************
- * start opcode definitions
- ****************************************************************************/
-struct instruction_desriptor {
-    size_t length;
-    uint32_t value;
-    uint32_t mask;
-    opcode_e op;
-};
-
-const std::array<instruction_desriptor, 90> instr_descr = {{
-     /* entries are: size, valid value, valid mask, function ptr */
-    {32, 0b00000000000000000000000000110111, 0b00000000000000000000000001111111, opcode_e::LUI},
-    {32, 0b00000000000000000000000000010111, 0b00000000000000000000000001111111, opcode_e::AUIPC},
-    {32, 0b00000000000000000000000001101111, 0b00000000000000000000000001111111, opcode_e::JAL},
-    {32, 0b00000000000000000000000001100111, 0b00000000000000000111000001111111, opcode_e::JALR},
-    {32, 0b00000000000000000000000001100011, 0b00000000000000000111000001111111, opcode_e::BEQ},
-    {32, 0b00000000000000000001000001100011, 0b00000000000000000111000001111111, opcode_e::BNE},
-    {32, 0b00000000000000000100000001100011, 0b00000000000000000111000001111111, opcode_e::BLT},
-    {32, 0b00000000000000000101000001100011, 0b00000000000000000111000001111111, opcode_e::BGE},
-    {32, 0b00000000000000000110000001100011, 0b00000000000000000111000001111111, opcode_e::BLTU},
-    {32, 0b00000000000000000111000001100011, 0b00000000000000000111000001111111, opcode_e::BGEU},
-    {32, 0b00000000000000000000000000000011, 0b00000000000000000111000001111111, opcode_e::LB},
-    {32, 0b00000000000000000001000000000011, 0b00000000000000000111000001111111, opcode_e::LH},
-    {32, 0b00000000000000000010000000000011, 0b00000000000000000111000001111111, opcode_e::LW},
-    {32, 0b00000000000000000100000000000011, 0b00000000000000000111000001111111, opcode_e::LBU},
-    {32, 0b00000000000000000101000000000011, 0b00000000000000000111000001111111, opcode_e::LHU},
-    {32, 0b00000000000000000000000000100011, 0b00000000000000000111000001111111, opcode_e::SB},
-    {32, 0b00000000000000000001000000100011, 0b00000000000000000111000001111111, opcode_e::SH},
-    {32, 0b00000000000000000010000000100011, 0b00000000000000000111000001111111, opcode_e::SW},
-    {32, 0b00000000000000000000000000010011, 0b00000000000000000111000001111111, opcode_e::ADDI},
-    {32, 0b00000000000000000010000000010011, 0b00000000000000000111000001111111, opcode_e::SLTI},
-    {32, 0b00000000000000000011000000010011, 0b00000000000000000111000001111111, opcode_e::SLTIU},
-    {32, 0b00000000000000000100000000010011, 0b00000000000000000111000001111111, opcode_e::XORI},
-    {32, 0b00000000000000000110000000010011, 0b00000000000000000111000001111111, opcode_e::ORI},
-    {32, 0b00000000000000000111000000010011, 0b00000000000000000111000001111111, opcode_e::ANDI},
-    {32, 0b00000000000000000001000000010011, 0b11111110000000000111000001111111, opcode_e::SLLI},
-    {32, 0b00000000000000000101000000010011, 0b11111110000000000111000001111111, opcode_e::SRLI},
-    {32, 0b01000000000000000101000000010011, 0b11111110000000000111000001111111, opcode_e::SRAI},
-    {32, 0b00000000000000000000000000110011, 0b11111110000000000111000001111111, opcode_e::ADD},
-    {32, 0b01000000000000000000000000110011, 0b11111110000000000111000001111111, opcode_e::SUB},
-    {32, 0b00000000000000000001000000110011, 0b11111110000000000111000001111111, opcode_e::SLL},
-    {32, 0b00000000000000000010000000110011, 0b11111110000000000111000001111111, opcode_e::SLT},
-    {32, 0b00000000000000000011000000110011, 0b11111110000000000111000001111111, opcode_e::SLTU},
-    {32, 0b00000000000000000100000000110011, 0b11111110000000000111000001111111, opcode_e::XOR},
-    {32, 0b00000000000000000101000000110011, 0b11111110000000000111000001111111, opcode_e::SRL},
-    {32, 0b01000000000000000101000000110011, 0b11111110000000000111000001111111, opcode_e::SRA},
-    {32, 0b00000000000000000110000000110011, 0b11111110000000000111000001111111, opcode_e::OR},
-    {32, 0b00000000000000000111000000110011, 0b11111110000000000111000001111111, opcode_e::AND},
-    {32, 0b00000000000000000000000000001111, 0b00000000000000000111000001111111, opcode_e::FENCE},
-    {32, 0b00000000000000000000000001110011, 0b11111111111111111111111111111111, opcode_e::ECALL},
-    {32, 0b00000000000100000000000001110011, 0b11111111111111111111111111111111, opcode_e::EBREAK},
-    {32, 0b00000000001000000000000001110011, 0b11111111111111111111111111111111, opcode_e::URET},
-    {32, 0b00010000001000000000000001110011, 0b11111111111111111111111111111111, opcode_e::SRET},
-    {32, 0b00110000001000000000000001110011, 0b11111111111111111111111111111111, opcode_e::MRET},
-    {32, 0b00010000010100000000000001110011, 0b11111111111111111111111111111111, opcode_e::WFI},
-    {32, 0b01111011001000000000000001110011, 0b11111111111111111111111111111111, opcode_e::DRET},
-    {32, 0b00000000000000000001000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRW},
-    {32, 0b00000000000000000010000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRS},
-    {32, 0b00000000000000000011000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRC},
-    {32, 0b00000000000000000101000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRWI},
-    {32, 0b00000000000000000110000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRSI},
-    {32, 0b00000000000000000111000001110011, 0b00000000000000000111000001111111, opcode_e::CSRRCI},
-    {32, 0b00000000000000000001000000001111, 0b00000000000000000111000001111111, opcode_e::FENCE_I},
-    {32, 0b00000010000000000000000000110011, 0b11111110000000000111000001111111, opcode_e::MUL},
-    {32, 0b00000010000000000001000000110011, 0b11111110000000000111000001111111, opcode_e::MULH},
-    {32, 0b00000010000000000010000000110011, 0b11111110000000000111000001111111, opcode_e::MULHSU},
-    {32, 0b00000010000000000011000000110011, 0b11111110000000000111000001111111, opcode_e::MULHU},
-    {32, 0b00000010000000000100000000110011, 0b11111110000000000111000001111111, opcode_e::DIV},
-    {32, 0b00000010000000000101000000110011, 0b11111110000000000111000001111111, opcode_e::DIVU},
-    {32, 0b00000010000000000110000000110011, 0b11111110000000000111000001111111, opcode_e::REM},
-    {32, 0b00000010000000000111000000110011, 0b11111110000000000111000001111111, opcode_e::REMU},
-    {16, 0b0000000000000000, 0b1110000000000011, opcode_e::CADDI4SPN},
-    {16, 0b0100000000000000, 0b1110000000000011, opcode_e::CLW},
-    {16, 0b1100000000000000, 0b1110000000000011, opcode_e::CSW},
-    {16, 0b0000000000000001, 0b1110000000000011, opcode_e::CADDI},
-    {16, 0b0000000000000001, 0b1110111110000011, opcode_e::CNOP},
-    {16, 0b0010000000000001, 0b1110000000000011, opcode_e::CJAL},
-    {16, 0b0100000000000001, 0b1110000000000011, opcode_e::CLI},
-    {16, 0b0110000000000001, 0b1110000000000011, opcode_e::CLUI},
-    {16, 0b0110000100000001, 0b1110111110000011, opcode_e::CADDI16SP},
-    {16, 0b0110000000000001, 0b1111000001111111, opcode_e::__reserved_clui},
-    {16, 0b1000000000000001, 0b1111110000000011, opcode_e::CSRLI},
-    {16, 0b1000010000000001, 0b1111110000000011, opcode_e::CSRAI},
-    {16, 0b1000100000000001, 0b1110110000000011, opcode_e::CANDI},
-    {16, 0b1000110000000001, 0b1111110001100011, opcode_e::CSUB},
-    {16, 0b1000110000100001, 0b1111110001100011, opcode_e::CXOR},
-    {16, 0b1000110001000001, 0b1111110001100011, opcode_e::COR},
-    {16, 0b1000110001100001, 0b1111110001100011, opcode_e::CAND},
-    {16, 0b1010000000000001, 0b1110000000000011, opcode_e::CJ},
-    {16, 0b1100000000000001, 0b1110000000000011, opcode_e::CBEQZ},
-    {16, 0b1110000000000001, 0b1110000000000011, opcode_e::CBNEZ},
-    {16, 0b0000000000000010, 0b1111000000000011, opcode_e::CSLLI},
-    {16, 0b0100000000000010, 0b1110000000000011, opcode_e::CLWSP},
-    {16, 0b1000000000000010, 0b1111000000000011, opcode_e::CMV},
-    {16, 0b1000000000000010, 0b1111000001111111, opcode_e::CJR},
-    {16, 0b1000000000000010, 0b1111111111111111, opcode_e::__reserved_cmv},
-    {16, 0b1001000000000010, 0b1111000000000011, opcode_e::CADD},
-    {16, 0b1001000000000010, 0b1111000001111111, opcode_e::CJALR},
-    {16, 0b1001000000000010, 0b1111111111111111, opcode_e::CEBREAK},
-    {16, 0b1100000000000010, 0b1110000000000011, opcode_e::CSWSP},
-    {16, 0b0000000000000000, 0b1111111111111111, opcode_e::DII},
-}};
-
-}
-
-template<>
-struct instruction_decoder<tgc_c> {
-    using opcode_e = traits<tgc_c>::opcode_e;
-    using code_word_t=traits<tgc_c>::code_word_t;
-
-    struct instruction_pattern {
-        uint32_t value;
-        uint32_t mask;
-        opcode_e id;
-    };
-
-    std::array<std::vector<instruction_pattern>, 4> qlut;
-
-    template<typename T>
-    unsigned decode_instruction(T);
-
-    instruction_decoder() {
-        for (auto instr : instr_descr) {
-            auto quadrant = instr.value & 0x3;
-            qlut[quadrant].push_back(instruction_pattern{instr.value, instr.mask, instr.op});
-        }
-        for(auto& lut: qlut){
-            std::sort(std::begin(lut), std::end(lut), [](instruction_pattern const& a, instruction_pattern const& b){
-                return bit_count(a.mask) > bit_count(b.mask);
-            });
-        }
-    }
-};
-
-template<>
-unsigned instruction_decoder<tgc_c>::decode_instruction<traits<tgc_c>::code_word_t>(traits<tgc_c>::code_word_t instr){
-    auto res = std::find_if(std::begin(qlut[instr&0x3]), std::end(qlut[instr&0x3]), [instr](instruction_pattern const& e){
-        return !((instr&e.mask) ^ e.value );
-    });
-    return static_cast<unsigned>(res!=std::end(qlut[instr&0x3])? res->id : opcode_e::MAX_OPCODE);
-}
-
-
-std::unique_ptr<instruction_decoder<tgc_c>> traits<tgc_c>::get_decoder(){
-    return std::make_unique<instruction_decoder<tgc_c>>();
-}
-
-}
-}

src/iss/arch/tgc_mapper.h

@@ -1,50 +0,0 @@
-#ifndef _ISS_ARCH_TGC_MAPPER_H
-#define _ISS_ARCH_TGC_MAPPER_H
-
-#include "riscv_hart_m_p.h"
-#include "tgc_c.h"
-using tgc_c_plat_type = iss::arch::riscv_hart_m_p<iss::arch::tgc_c>;
-#ifdef CORE_TGC_A
-#include "riscv_hart_m_p.h"
-#include <iss/arch/tgc_a.h>
-using tgc_a_plat_type = iss::arch::riscv_hart_m_p<iss::arch::tgc_a>;
-#endif
-#ifdef CORE_TGC_B
-#include "riscv_hart_m_p.h"
-#include <iss/arch/tgc_b.h>
-using tgc_b_plat_type = iss::arch::riscv_hart_m_p<iss::arch::tgc_b>;
-#endif
-#ifdef CORE_TGC_C_XRB_NN
-#include "riscv_hart_m_p.h"
-#include "hwl.h"
-#include <iss/arch/tgc_c_xrb_nn.h>
-using tgc_c_xrb_nn_plat_type = iss::arch::hwl<iss::arch::riscv_hart_m_p<iss::arch::tgc_c_xrb_nn>>;
-#endif
-#ifdef CORE_TGC_D
-#include "riscv_hart_mu_p.h"
-#include <iss/arch/tgc_d.h>
-using tgc_d_plat_type = iss::arch::riscv_hart_mu_p<iss::arch::tgc_d, (iss::arch::features_e)(iss::arch::FEAT_PMP | iss::arch::FEAT_CLIC | iss::arch::FEAT_EXT_N)>;
-#endif
-#ifdef CORE_TGC_D_XRB_MAC
-#include "riscv_hart_mu_p.h"
-#include <iss/arch/tgc_d_xrb_mac.h>
-using tgc_d_xrb_mac_plat_type = iss::arch::riscv_hart_mu_p<iss::arch::tgc_d_xrb_mac, (iss::arch::features_e)(iss::arch::FEAT_PMP | iss::arch::FEAT_CLIC | iss::arch::FEAT_EXT_N)>;
-#endif
-#ifdef CORE_TGC_D_XRB_NN
-#include "riscv_hart_mu_p.h"
-#include "hwl.h"
-#include <iss/arch/tgc_d_xrb_nn.h>
-using tgc_d_xrb_nn_plat_type = iss::arch::hwl<iss::arch::riscv_hart_mu_p<iss::arch::tgc_d_xrb_nn, (iss::arch::features_e)(iss::arch::FEAT_PMP | iss::arch::FEAT_CLIC | iss::arch::FEAT_EXT_N)>>;
-#endif
-#ifdef CORE_TGC_E
-#include "riscv_hart_mu_p.h"
-#include <iss/arch/tgc_e.h>
-using tgc_e_plat_type = iss::arch::riscv_hart_mu_p<iss::arch::tgc_e, (iss::arch::features_e)(iss::arch::FEAT_PMP | iss::arch::FEAT_CLIC | iss::arch::FEAT_EXT_N)>;
-#endif
-#ifdef CORE_TGC_X
-#include "riscv_hart_mu_p.h"
-#include <iss/arch/tgc_x.h>
-using tgc_x_plat_type = iss::arch::riscv_hart_mu_p<iss::arch::tgc_x, (iss::arch::features_e)(iss::arch::FEAT_PMP | iss::arch::FEAT_CLIC | iss::arch::FEAT_EXT_N | iss::arch::FEAT_TCM)>;
-#endif
-
-#endif

src/iss/plugin/cycle_estimate.cpp

@@ -1,118 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017, MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Contributors:
- *       eyck@minres.com - initial API and implementation
- ******************************************************************************/
-
-#include "cycle_estimate.h"
-
-#include <iss/arch_if.h>
-#include <util/logging.h>
-#include <rapidjson/document.h>
-#include <rapidjson/istreamwrapper.h>
-#include <rapidjson/writer.h>
-#include <rapidjson/stringbuffer.h>
-#include <rapidjson/ostreamwrapper.h>
-#include <rapidjson/error/en.h>
-#include <fstream>
-
-using namespace rapidjson;
-using namespace std;
-
-iss::plugin::cycle_estimate::cycle_estimate(string const& config_file_name)
-: instr_if(nullptr)
-, config_file_name(config_file_name)
-{
-}
-
-iss::plugin::cycle_estimate::~cycle_estimate() {
-}
-
-bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if& vm) {
-    instr_if = vm.get_arch()->get_instrumentation_if();
-    if(!instr_if) return false;
-    const string  core_name = instr_if->core_type_name();
-    if (config_file_name.length() > 0) {
-        ifstream is(config_file_name);
-        if (is.is_open()) {
-            try {
-                IStreamWrapper isw(is);
-                Document d;
-                ParseResult ok = d.ParseStream(isw);
-                if(ok) {
-                    Value& val = d[core_name.c_str()];
-                    if(val.IsArray()){
-                        delays.reserve(val.Size());
-                        for (auto it = val.Begin(); it != val.End(); ++it) {
-                            auto& name = (*it)["name"];
-                            auto& size = (*it)["size"];
-                            auto& delay = (*it)["delay"];
-                            auto& branch = (*it)["branch"];
-                            if(delay.IsArray()) {
-                                auto dt = delay[0].Get<unsigned>();
-                                auto dnt = delay[1].Get<unsigned>();
-                                delays.push_back(instr_desc{size.Get<unsigned>(), dt, dnt, branch.Get<bool>()});
-                            } else if(delay.Is<unsigned>()) {
-                                auto d = delay.Get<unsigned>();
-                                delays.push_back(instr_desc{size.Get<unsigned>(), d, d, branch.Get<bool>()});
-                            } else
-                                throw runtime_error("JSON parse error");
-                       }
-                    } else {
-                        LOG(ERR)<<"plugin cycle_estimate: could not find an entry for "<<core_name<<" in JSON file"<<endl;
-                        return false;
-                   }
-                } else {
-                    LOG(ERR)<<"plugin cycle_estimate: could not parse in JSON file at "<< ok.Offset()<<": "<<GetParseError_En(ok.Code())<<endl;
-                    return false;
-               }
-            } catch (runtime_error &e) {
-                LOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
-                return false;
-            }
-        } else {
-            LOG(ERR) << "Could not open input file " << config_file_name;
-            return false;
-        }
-    }
-    return true;
-
-}
-
-void iss::plugin::cycle_estimate::callback(instr_info_t instr_info, exec_info const& exc_info) {
-    assert(instr_if && "No instrumentation interface available but callback executed");
-    auto entry = delays[instr_info.instr_id];
-    bool taken = exc_info.branch_taken;
-    if (exc_info.branch_taken && (entry.taken > 1))
-        instr_if->set_curr_instr_cycles(entry.taken);
-    else if (entry.not_taken > 1)
-        instr_if->set_curr_instr_cycles(entry.not_taken);
-}

src/iss/plugin/pctrace.cpp

@@ -1,180 +0,0 @@
-#include <iss/arch_if.h>
-#include <iss/plugin/pctrace.h>
-#include <util/logging.h>
-#include <util/ities.h>
-#include <rapidjson/document.h>
-#include <rapidjson/istreamwrapper.h>
-#include <rapidjson/writer.h>
-#include <rapidjson/stringbuffer.h>
-#include <rapidjson/ostreamwrapper.h>
-#include <rapidjson/error/en.h>
-#include <fstream>
-#include <iostream>
-#ifdef WITH_LZ4
-#include <lz4frame.h>
-#endif
-
-namespace iss {
-namespace plugin {
-
-using namespace rapidjson;
-using namespace std;
-
-#ifdef WITH_LZ4
-class lz4compress_steambuf: public std::streambuf {
-public:
-    lz4compress_steambuf(const lz4compress_steambuf&) = delete;
-    lz4compress_steambuf& operator=(const lz4compress_steambuf&) = delete;
-    lz4compress_steambuf(std::ostream &sink, size_t buf_size)
-    : sink(sink)
-    , src_buf(buf_size)
-    , dest_buf(LZ4F_compressBound(buf_size, nullptr))
-    {
-        auto errCode = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION);
-        if (LZ4F_isError(errCode) != 0)
-            throw std::runtime_error(std::string("Failed to create LZ4 context: ") + LZ4F_getErrorName(errCode));
-        size_t ret = LZ4F_compressBegin(ctx, &dest_buf.front(), dest_buf.capacity(), nullptr);
-        if (LZ4F_isError(ret) != 0)
-            throw std::runtime_error(std::string("Failed to start LZ4 compression: ") + LZ4F_getErrorName(ret));
-        setp(src_buf.data(), src_buf.data() + src_buf.size() - 1);
-        sink.write(dest_buf.data(), ret);
-    }
-
-    ~lz4compress_steambuf() {
-        close();
-    }
-
-    void close() {
-        if (closed)
-            return;
-        sync();
-        auto ret = LZ4F_compressEnd(ctx, dest_buf.data(), dest_buf.capacity(), nullptr);
-        if (LZ4F_isError(ret) != 0)
-            throw std::runtime_error(std::string("Failed to finish LZ4 compression: ") + LZ4F_getErrorName(ret));
-        sink.write(dest_buf.data(), ret);
-        LZ4F_freeCompressionContext(ctx);
-        closed = true;
-    }
-
-private:
-    int_type overflow(int_type ch) override {
-        compress_and_write();
-        *pptr() = static_cast<char_type>(ch);
-        pbump(1);
-        return ch;
-    }
-
-    int_type sync() override {
-        compress_and_write();
-        return 0;
-    }
-
-    void compress_and_write() {
-        if (closed)
-            throw std::runtime_error("Cannot write to closed stream");
-        if(auto orig_size = pptr() - pbase()){
-            auto ret = LZ4F_compressUpdate(ctx, dest_buf.data(), dest_buf.capacity(), pbase(), orig_size, nullptr);
-            if (LZ4F_isError(ret) != 0)
-                throw std::runtime_error(std::string("LZ4 compression failed: ") + LZ4F_getErrorName(ret));
-            if(ret) sink.write(dest_buf.data(), ret);
-            pbump(-orig_size);
-        }
-    }
-
-    std::ostream &sink;
-    std::vector<char> src_buf;
-    std::vector<char> dest_buf;
-    LZ4F_compressionContext_t ctx{ nullptr };
-    bool closed{ false };
-};
-#endif
-
-pctrace::pctrace(std::string const &filename)
-: instr_if(nullptr)
-, filename(filename)
-, output("output.trc")
-#ifdef WITH_LZ4
-, strbuf(new lz4compress_steambuf(output, 4096))
-, ostr(strbuf.get())
-#endif
-{ }
-
-pctrace::~pctrace() { }
-
-bool pctrace::registration(const char *const version, vm_if& vm) {
-    instr_if = vm.get_arch()->get_instrumentation_if();
-    if(!instr_if) return false;
-    const string  core_name = instr_if->core_type_name();
-    if (filename.length() > 0) {
-        ifstream is(filename);
-        if (is.is_open()) {
-            try {
-                IStreamWrapper isw(is);
-                Document d;
-                ParseResult ok = d.ParseStream(isw);
-                if(ok) {
-                    Value& val = d[core_name.c_str()];
-                    if(val.IsArray()){
-                        delays.reserve(val.Size());
-                        for (auto it = val.Begin(); it != val.End(); ++it) {
-                            auto& name = (*it)["name"];
-                            auto& size = (*it)["size"];
-                            auto& delay = (*it)["delay"];
-                            auto& branch = (*it)["branch"];
-                            if(delay.IsArray()) {
-                                auto dt = delay[0].Get<unsigned>();
-                                auto dnt = delay[1].Get<unsigned>();
-                                delays.push_back(instr_desc{size.Get<unsigned>(), dt, dnt, branch.Get<bool>()});
-                            } else if(delay.Is<unsigned>()) {
-                                auto d = delay.Get<unsigned>();
-                                delays.push_back(instr_desc{size.Get<unsigned>(), d, d, branch.Get<bool>()});
-                            } else
-                                throw runtime_error("JSON parse error");
-
-                        }
-                    } else {
-                        LOG(ERR)<<"plugin cycle_estimate: could not find an entry for "<<core_name<<" in JSON file"<<endl;
-                        return false;
-                    }
-                } else {
-                    LOG(ERR)<<"plugin cycle_estimate: could not parse in JSON file at "<< ok.Offset()<<": "<<GetParseError_En(ok.Code())<<endl;
-                    return false;
-                }
-            } catch (runtime_error &e) {
-                LOG(ERR) << "Could not parse input file " << filename << ", reason: " << e.what();
-                return false;
-            }
-        } else {
-            LOG(ERR) << "Could not open input file " << filename;
-            return false;
-        }
-    }
-    return true;
-}
-
-void pctrace::callback(instr_info_t iinfo, const exec_info& einfo) {
-    auto delay = 0;
-    size_t id = iinfo.instr_id;
-    auto entry = delays[id];
-    auto instr = instr_if->get_instr_word();
-    auto call = id==65 || id ==86 || ((id==2 || id==3) && bit_sub<7,5>(instr)!=0) ;//not taking care of tail calls (jalr with loading x6)
-    bool taken = einfo.branch_taken;
-    bool compressed = (instr&0x3)!=0x3;
-    if (einfo.branch_taken) {
-        delay = entry.taken;
-        if(entry.taken > 1)
-            instr_if->set_curr_instr_cycles(entry.taken);
-    } else {
-        delay = entry.not_taken;
-        if (entry.not_taken > 1)
-            instr_if->set_curr_instr_cycles(entry.not_taken);
-    }
-#ifndef WITH_LZ4
-    output<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
-#else
-    auto rdbuf=ostr.rdbuf();
-    ostr<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
-#endif
-}
-}
-}

src/iss/plugin/pctrace.h

@@ -1,102 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017, 2018, MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Contributors:
- *       eyck@minres.com - initial API and implementation
- ******************************************************************************/
-
-#ifndef _ISS_PLUGIN_COV_H_
-#define _ISS_PLUGIN_COV_H_
-
-#include <iss/vm_plugin.h>
-#include "iss/instrumentation_if.h"
-#include <json/json.h>
-#include <string>
-#include <fstream>
-
-
-namespace iss {
-namespace plugin {
-class lz4compress_steambuf;
-class pctrace : public iss::vm_plugin {
-    struct instr_delay {
-        std::string instr_name;
-        size_t size;
-        size_t not_taken_delay;
-        size_t taken_delay;
-    };
-    BEGIN_BF_DECL(instr_desc, uint32_t)
-        BF_FIELD(taken, 24, 8)
-        BF_FIELD(not_taken, 16, 8)
-        BF_FIELD(is_branch, 8, 8)
-        BF_FIELD(size, 0, 8)
-        instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken, bool branch): instr_desc() {
-            this->size=size;
-            this->taken=taken;
-            this->not_taken=not_taken;
-            this->is_branch=branch;
-        }
-    END_BF_DECL();
-
-public:
-
-    pctrace(const pctrace &) = delete;
-
-    pctrace(const pctrace &&) = delete;
-
-    pctrace(std::string const &);
-
-    virtual ~pctrace();
-
-    pctrace &operator=(const pctrace &) = delete;
-
-    pctrace &operator=(const pctrace &&) = delete;
-
-    bool registration(const char *const version, vm_if &arch) override;
-
-    sync_type get_sync() override { return POST_SYNC; };
-
-    void callback(instr_info_t, exec_info const&) override;
-
-private:
-    iss::instrumentation_if *instr_if  {nullptr};
-    std::ofstream output;
-#ifdef WITH_LZ4
-    std::unique_ptr<lz4compress_steambuf> strbuf;
-    std::ostream ostr;
-#endif
-    std::string filename;
-    std::vector<instr_desc> delays;
-    bool jumped{false}, first{true};
-};
-}
-}
-
-#endif /* _ISS_PLUGIN_COV_H_ */

src/iss/tgf_b.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (C) 2017 - 2020 MINRES Technologies GmbH
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -29,41 +29,41 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  *******************************************************************************/
-
-#include "tgc_c.h"
+ 
 #include "util/ities.h"
 #include <util/logging.h>
+#include <iss/arch/tgf_b.h>
 #include <cstdio>
 #include <cstring>
 #include <fstream>
 
 using namespace iss::arch;
 
-constexpr std::array<const char*, 36>    iss::arch::traits<iss::arch::tgc_c>::reg_names;
-constexpr std::array<const char*, 36>    iss::arch::traits<iss::arch::tgc_c>::reg_aliases;
-constexpr std::array<const uint32_t, 36> iss::arch::traits<iss::arch::tgc_c>::reg_bit_widths;
-constexpr std::array<const uint32_t, 36> iss::arch::traits<iss::arch::tgc_c>::reg_byte_offsets;
+constexpr std::array<const char*, 33>    iss::arch::traits<iss::arch::tgf_b>::reg_names;
+constexpr std::array<const char*, 33>    iss::arch::traits<iss::arch::tgf_b>::reg_aliases;
+constexpr std::array<const uint32_t, 39> iss::arch::traits<iss::arch::tgf_b>::reg_bit_widths;
+constexpr std::array<const uint32_t, 40> iss::arch::traits<iss::arch::tgf_b>::reg_byte_offsets;
 
-tgc_c::tgc_c()  = default;
-
-tgc_c::~tgc_c() = default;
-
-void tgc_c::reset(uint64_t address) {
-    auto base_ptr = reinterpret_cast<traits<tgc_c>::reg_t*>(get_regs_base_ptr());
-    for(size_t i=0; i<traits<tgc_c>::NUM_REGS; ++i)
-        *(base_ptr+i)=0;
-    reg.PC=address;
-    reg.NEXT_PC=reg.PC;
-    reg.PRIV=0x3;
-    trap_state=0;
-    icount=0;
+tgf_b::tgf_b() {
+    reg.icount = 0;
 }
 
-uint8_t *tgc_c::get_regs_base_ptr() {
+tgf_b::~tgf_b() = default;
+
+void tgf_b::reset(uint64_t address) {
+    for(size_t i=0; i<traits<tgf_b>::NUM_REGS; ++i) set_reg(i, std::vector<uint8_t>(sizeof(traits<tgf_b>::reg_t),0));
+    reg.PC=address;
+    reg.NEXT_PC=reg.PC;
+    reg.trap_state=0;
+    reg.machine_state=0x3;
+    reg.icount=0;
+}
+
+uint8_t *tgf_b::get_regs_base_ptr() {
 	return reinterpret_cast<uint8_t*>(&reg);
 }
 
-tgc_c::phys_addr_t tgc_c::virt2phys(const iss::addr_t &pc) {
+tgf_b::phys_addr_t tgf_b::virt2phys(const iss::addr_t &pc) {
     return phys_addr_t(pc); // change logical address to physical address
 }
 

src/iss/tgf_c.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (C) 2021 MINRES Technologies GmbH
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -29,34 +29,41 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  *******************************************************************************/
+ 
+#include "util/ities.h"
+#include <util/logging.h>
+#include <iss/arch/tgf_c.h>
+#include <cstdio>
+#include <cstring>
+#include <fstream>
 
-#ifndef _ISS_FACTORY_H_
-#define _ISS_FACTORY_H_
+using namespace iss::arch;
 
-#include <iss/iss.h>
+constexpr std::array<const char*, 33>    iss::arch::traits<iss::arch::tgf_c>::reg_names;
+constexpr std::array<const char*, 33>    iss::arch::traits<iss::arch::tgf_c>::reg_aliases;
+constexpr std::array<const uint32_t, 39> iss::arch::traits<iss::arch::tgf_c>::reg_bit_widths;
+constexpr std::array<const uint32_t, 40> iss::arch::traits<iss::arch::tgf_c>::reg_byte_offsets;
 
-namespace iss {
-
-using cpu_ptr = std::unique_ptr<iss::arch_if>;
-using vm_ptr= std::unique_ptr<iss::vm_if>;
-
-template<typename PLAT>
-std::tuple<cpu_ptr, vm_ptr> create_cpu(std::string const& backend, unsigned gdb_port){
-    using core_type = typename PLAT::core;
-    core_type* lcpu = new PLAT();
-    if(backend == "interp")
-        return {cpu_ptr{lcpu}, vm_ptr{iss::interp::create(lcpu, gdb_port)}};
-#ifdef WITH_LLVM
-    if(backend == "llvm")
-        return {cpu_ptr{lcpu}, vm_ptr{iss::llvm::create(lcpu, gdb_port)}};
-#endif
-#ifdef WITH_LLVM
-    if(backend == "tcc")
-        return {cpu_ptr{lcpu}, vm_ptr{iss::tcc::create(lcpu, gdb_port)}};
-#endif
-    return {nullptr, nullptr};
+tgf_c::tgf_c() {
+    reg.icount = 0;
 }
 
+tgf_c::~tgf_c() = default;
+
+void tgf_c::reset(uint64_t address) {
+    for(size_t i=0; i<traits<tgf_c>::NUM_REGS; ++i) set_reg(i, std::vector<uint8_t>(sizeof(traits<tgf_c>::reg_t),0));
+    reg.PC=address;
+    reg.NEXT_PC=reg.PC;
+    reg.trap_state=0;
+    reg.machine_state=0x3;
+    reg.icount=0;
+}
+
+uint8_t *tgf_c::get_regs_base_ptr() {
+	return reinterpret_cast<uint8_t*>(&reg);
+}
+
+tgf_c::phys_addr_t tgf_c::virt2phys(const iss::addr_t &pc) {
+    return phys_addr_t(pc); // change logical address to physical address
 }
 
-#endif /* _ISS_FACTORY_H_ */

src/main.cpp

@@ -1,241 +1,204 @@
-/*******************************************************************************
- * Copyright (C) 2017, 2018 MINRES Technologies GmbH
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- *******************************************************************************/
-
-#include <iostream>
-#include "iss/factory.h"
-
-#include <boost/lexical_cast.hpp>
-#include <boost/program_options.hpp>
-#include "iss/arch/tgc_mapper.h"
-#ifdef WITH_LLVM
-#include <iss/llvm/jit_helper.h>
-#endif
-#include <iss/log_categories.h>
-#include "iss/plugin/cycle_estimate.h"
-#include "iss/plugin/instruction_count.h"
-#include "iss/plugin/pctrace.h"
-#ifndef WIN32
-#include <iss/plugin/loader.h>
-#endif
-#if defined(HAS_LUA)
-#include <iss/plugin/lua.h>
-#endif
-
-namespace po = boost::program_options;
-
-int main(int argc, char *argv[]) {
-    /*
-     *  Define and parse the program options
-     */
-    po::variables_map clim;
-    po::options_description desc("Options");
-    // clang-format off
-    desc.add_options()
-        ("help,h", "Print help message")
-        ("verbose,v", po::value<int>()->implicit_value(0), "Sets logging verbosity")
-        ("logfile,l", po::value<std::string>(), "Sets default log file.")
-        ("disass,d", po::value<std::string>()->implicit_value(""), "Enables disassembly")
-        ("gdb-port,g", po::value<unsigned>()->default_value(0), "enable gdb server and specify port to use")
-        ("instructions,i", po::value<uint64_t>()->default_value(std::numeric_limits<uint64_t>::max()), "max. number of instructions to simulate")
-        ("reset,r", po::value<std::string>(), "reset address")
-        ("dump-ir", "dump the intermediate representation")
-        ("elf,f", po::value<std::vector<std::string>>(), "ELF file(s) to load")
-        ("mem,m", po::value<std::string>(), "the memory input file")
-        ("plugin,p", po::value<std::vector<std::string>>(), "plugin to activate")
-        ("backend", po::value<std::string>()->default_value("interp"), "the memory input file")
-        ("isa", po::value<std::string>()->default_value("tgc_c"), "isa to use for simulation");
-    // clang-format on
-    auto parsed = po::command_line_parser(argc, argv).options(desc).allow_unregistered().run();
-    try {
-        po::store(parsed, clim); // can throw
-        // --help option
-        if (clim.count("help")) {
-            std::cout << "DBT-RISE-RiscV simulator for RISC-V" << std::endl << desc << std::endl;
-            return 0;
-        }
-        po::notify(clim); // throws on error, so do after help in case
-    } catch (po::error &e) {
-        // there are problems
-        std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
-        std::cerr << desc << std::endl;
-        return 1;
-    }
-    std::vector<std::string> args = collect_unrecognized(parsed.options, po::include_positional);
-
-    LOGGER(DEFAULT)::print_time() = false;
-    LOGGER(connection)::print_time() = false;
-    if (clim.count("verbose")) {
-        auto l = logging::as_log_level(clim["verbose"].as<int>());
-        LOGGER(DEFAULT)::reporting_level() = l;
-        LOGGER(connection)::reporting_level() = l;
-    }
-    if (clim.count("logfile")) {
-        // configure the connection logger
-        auto f = fopen(clim["logfile"].as<std::string>().c_str(), "w");
-        LOG_OUTPUT(DEFAULT)::stream() = f;
-        LOG_OUTPUT(connection)::stream() = f;
-    }
-
-    std::vector<iss::vm_plugin *> plugin_list;
-    auto res = 0;
-    try {
-#ifdef WITH_LLVM
-        // application code comes here //
-        iss::init_jit_debug(argc, argv);
-#endif
-        bool dump = clim.count("dump-ir");
-        // instantiate the simulator
-        iss::vm_ptr vm{nullptr};
-        iss::cpu_ptr cpu{nullptr};
-        std::string isa_opt(clim["isa"].as<std::string>());
-        if (isa_opt == "tgc_c") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_c_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#ifdef CORE_TGC_B
-        if (isa_opt == "tgc_b") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_b_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-#ifdef CORE_TGC_C_XRB_NN
-        if (isa_opt == "tgc_c_xrb_nn") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_c_xrb_nn_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-#ifdef CORE_TGC_D
-        if (isa_opt == "tgc_d") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_d_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-#ifdef CORE_TGC_D_XRB_MAC
-        if (isa_opt == "tgc_d_xrb_mac") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_d_xrb_mac_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-#ifdef CORE_TGC_D_XRB_NN
-        if (isa_opt == "tgc_d_xrb_nn") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_d_xrb_nn_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-#ifdef CORE_TGC_E
-        if (isa_opt == "tgc_e") {
-            std::tie(cpu, vm) =
-                iss::create_cpu<tgc_e_plat_type>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
-        } else
-#endif
-        {
-            LOG(ERR) << "Illegal argument value for '--isa': " << isa_opt << std::endl;
-            return 127;
-        }
-        if (clim.count("plugin")) {
-            for (std::string const& opt_val : clim["plugin"].as<std::vector<std::string>>()) {
-                std::string plugin_name=opt_val;
-                std::string filename{"cycles.txt"};
-                std::size_t found = opt_val.find('=');
-                if (found != std::string::npos) {
-                    plugin_name = opt_val.substr(0, found);
-                    filename = opt_val.substr(found + 1, opt_val.size());
-                }
-                if (plugin_name == "ic") {
-                    auto *ic_plugin = new iss::plugin::instruction_count(filename);
-                    vm->register_plugin(*ic_plugin);
-                    plugin_list.push_back(ic_plugin);
-                } else if (plugin_name == "ce") {
-                    auto *ce_plugin = new iss::plugin::cycle_estimate(filename);
-                    vm->register_plugin(*ce_plugin);
-                    plugin_list.push_back(ce_plugin);
-                } else if (plugin_name == "pctrace") {
-                    auto *plugin = new iss::plugin::pctrace(filename);
-                    vm->register_plugin(*plugin);
-                    plugin_list.push_back(plugin);
-               } else {
-#ifndef WIN32
-                    std::array<char const*, 1> a{{filename.c_str()}};
-                    iss::plugin::loader l(plugin_name, {{"initPlugin"}});
-                    auto* plugin = l.call_function<iss::vm_plugin*>("initPlugin", a.size(), a.data());
-                    if(plugin){
-                        vm->register_plugin(*plugin);
-                        plugin_list.push_back(plugin);
-                    } else
-#endif
-                    {
-                        LOG(ERR) << "Unknown plugin name: " << plugin_name << ", valid names are 'ce', 'ic'" << std::endl;
-                        return 127;
-                    }
-                }
-            }
-        }
-        if (clim.count("disass")) {
-            vm->setDisassEnabled(true);
-            LOGGER(disass)::reporting_level() = logging::INFO;
-            LOGGER(disass)::print_time() = false;
-            auto file_name = clim["disass"].as<std::string>();
-            if (file_name.length() > 0) {
-                LOG_OUTPUT(disass)::stream() = fopen(file_name.c_str(), "w");
-                LOGGER(disass)::print_severity() = false;
-            }
-        }
-        uint64_t start_address = 0;
-        if (clim.count("mem"))
-            vm->get_arch()->load_file(clim["mem"].as<std::string>());
-        if (clim.count("elf"))
-            for (std::string input : clim["elf"].as<std::vector<std::string>>()) {
-                auto start_addr = vm->get_arch()->load_file(input);
-                if (start_addr.second) start_address = start_addr.first;
-            }
-        for (std::string input : args) {
-            auto start_addr = vm->get_arch()->load_file(input); // treat remaining arguments as elf files
-            if (start_addr.second) start_address = start_addr.first;
-        }
-        if (clim.count("reset")) {
-            auto str = clim["reset"].as<std::string>();
-            start_address = str.find("0x") == 0 ? std::stoull(str.substr(2), nullptr, 16) : std::stoull(str, nullptr, 10);
-        }
-        vm->reset(start_address);
-        auto cycles = clim["instructions"].as<uint64_t>();
-        res = vm->start(cycles, dump);
-    } catch (std::exception &e) {
-        LOG(ERR) << "Unhandled Exception reached the top of main: " << e.what() << ", application will now exit"
-                   << std::endl;
-        res = 2;
-    }
-    // cleanup to let plugins report of needed
-    for (auto *p : plugin_list) {
-        delete p;
-    }
-    return res;
-}
+/*******************************************************************************
+ * Copyright (C) 2017, 2018 MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+#include <iostream>
+#include <iss/iss.h>
+
+#include <boost/lexical_cast.hpp>
+#include <boost/program_options.hpp>
+#include <iss/arch/riscv_hart_m_p.h>
+#include <iss/arch/tgf_b.h>
+#include <iss/arch/tgf_c.h>
+#ifdef WITH_LLVM
+#include <iss/llvm/jit_helper.h>
+#endif
+#include <iss/log_categories.h>
+#include <iss/plugin/cycle_estimate.h>
+#include <iss/plugin/instruction_count.h>
+
+namespace po = boost::program_options;
+
+using cpu_ptr = std::unique_ptr<iss::arch_if>;
+using vm_ptr= std::unique_ptr<iss::vm_if>;
+
+template<typename CORE>
+std::tuple<cpu_ptr, vm_ptr> create_cpu(std::string const& backend, unsigned gdb_port){
+    CORE* lcpu = new iss::arch::riscv_hart_m_p<CORE>();
+    if(backend == "interp")
+        return {cpu_ptr{lcpu}, vm_ptr{iss::interp::create(lcpu, gdb_port)}};
+#ifdef WITH_LLVM
+    if(backend == "llvm")
+        return {cpu_ptr{lcpu}, vm_ptr{iss::llvm::create(lcpu, gdb_port)}};
+#endif
+    if(backend == "tcc")
+        return {cpu_ptr{lcpu}, vm_ptr{iss::tcc::create(lcpu, gdb_port)}};
+    return {nullptr, nullptr};
+}
+
+int main(int argc, char *argv[]) {
+    /*
+     *  Define and parse the program options
+     */
+    po::variables_map clim;
+    po::options_description desc("Options");
+    // clang-format off
+    desc.add_options()
+        ("help,h", "Print help message")
+        ("verbose,v", po::value<int>()->implicit_value(0), "Sets logging verbosity")
+        ("logfile,f", po::value<std::string>(), "Sets default log file.")
+        ("disass,d", po::value<std::string>()->implicit_value(""), "Enables disassembly")
+        ("gdb-port,g", po::value<unsigned>()->default_value(0), "enable gdb server and specify port to use")
+        ("instructions,i", po::value<uint64_t>()->default_value(std::numeric_limits<uint64_t>::max()), "max. number of instructions to simulate")
+        ("reset,r", po::value<std::string>(), "reset address")
+        ("dump-ir", "dump the intermediate representation")
+        ("elf", po::value<std::vector<std::string>>(), "ELF file(s) to load")
+        ("mem,m", po::value<std::string>(), "the memory input file")
+        ("plugin,p", po::value<std::vector<std::string>>(), "plugin to activate")
+        ("backend", po::value<std::string>()->default_value("tcc"), "the memory input file")
+        ("isa", po::value<std::string>()->default_value("tgf_c"), "isa to use for simulation");
+    // clang-format on
+    auto parsed = po::command_line_parser(argc, argv).options(desc).allow_unregistered().run();
+    try {
+        po::store(parsed, clim); // can throw
+        // --help option
+        if (clim.count("help")) {
+            std::cout << "DBT-RISE-RiscV simulator for RISC-V" << std::endl << desc << std::endl;
+            return 0;
+        }
+        po::notify(clim); // throws on error, so do after help in case
+    } catch (po::error &e) {
+        // there are problems
+        std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
+        std::cerr << desc << std::endl;
+        return 1;
+    }
+    std::vector<std::string> args = collect_unrecognized(parsed.options, po::include_positional);
+
+    LOGGER(DEFAULT)::print_time() = false;
+    LOGGER(connection)::print_time() = false;
+    if (clim.count("verbose")) {
+        auto l = logging::as_log_level(clim["verbose"].as<int>());
+        LOGGER(DEFAULT)::reporting_level() = l;
+        LOGGER(connection)::reporting_level() = l;
+    }
+    if (clim.count("logfile")) {
+        // configure the connection logger
+        auto f = fopen(clim["logfile"].as<std::string>().c_str(), "w");
+        LOG_OUTPUT(DEFAULT)::stream() = f;
+        LOG_OUTPUT(connection)::stream() = f;
+    }
+
+    std::vector<iss::vm_plugin *> plugin_list;
+    auto res = 0;
+    try {
+#ifdef WITH_LLVM
+        // application code comes here //
+        iss::init_jit_debug(argc, argv);
+#endif
+        bool dump = clim.count("dump-ir");
+        // instantiate the simulator
+        vm_ptr vm{nullptr};
+        cpu_ptr cpu{nullptr};
+        std::string isa_opt(clim["isa"].as<std::string>());
+        if (isa_opt == "tgf_b") {
+            std::tie(cpu, vm) =
+                create_cpu<iss::arch::tgf_b>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
+        } else if (isa_opt == "tgf_c") {
+            std::tie(cpu, vm) =
+                create_cpu<iss::arch::tgf_c>(clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
+        } else {
+            LOG(ERROR) << "Illegal argument value for '--isa': " << clim["isa"].as<std::string>() << std::endl;
+            return 127;
+        }
+        if (clim.count("plugin")) {
+            for (std::string const& opt_val : clim["plugin"].as<std::vector<std::string>>()) {
+                std::string plugin_name=opt_val;
+                std::string filename{"cycles.txt"};
+                std::size_t found = opt_val.find('=');
+                if (found != std::string::npos) {
+                    plugin_name = opt_val.substr(0, found);
+                    filename = opt_val.substr(found + 1, opt_val.size());
+                }
+                if (plugin_name == "ic") {
+                    auto *ic_plugin = new iss::plugin::instruction_count(filename);
+                    vm->register_plugin(*ic_plugin);
+                    plugin_list.push_back(ic_plugin);
+                } else if (plugin_name == "ce") {
+                    auto *ce_plugin = new iss::plugin::cycle_estimate(filename);
+                    vm->register_plugin(*ce_plugin);
+                    plugin_list.push_back(ce_plugin);
+                } else {
+                    LOG(ERROR) << "Unknown plugin name: " << plugin_name << ", valid names are 'ce', 'ic'" << std::endl;
+                    return 127;
+                }
+            }
+        }
+        if (clim.count("disass")) {
+            vm->setDisassEnabled(true);
+            LOGGER(disass)::reporting_level() = logging::INFO;
+            LOGGER(disass)::print_time() = false;
+            auto file_name = clim["disass"].as<std::string>();
+            if (file_name.length() > 0) {
+                LOG_OUTPUT(disass)::stream() = fopen(file_name.c_str(), "w");
+                LOGGER(disass)::print_severity() = false;
+            }
+        }
+        uint64_t start_address = 0;
+        if (clim.count("mem"))
+            vm->get_arch()->load_file(clim["mem"].as<std::string>(), iss::arch::traits<iss::arch::tgf_b>::MEM);
+        if (clim.count("elf"))
+            for (std::string input : clim["elf"].as<std::vector<std::string>>()) {
+                auto start_addr = vm->get_arch()->load_file(input);
+                if (start_addr.second) start_address = start_addr.first;
+            }
+        for (std::string input : args) {
+            auto start_addr = vm->get_arch()->load_file(input); // treat remaining arguments as elf files
+            if (start_addr.second) start_address = start_addr.first;
+        }
+        if (clim.count("reset")) {
+            auto str = clim["reset"].as<std::string>();
+            start_address = str.find("0x") == 0 ? std::stoull(str.substr(2), nullptr, 16) : std::stoull(str, nullptr, 10);
+        }
+        vm->reset(start_address);
+        auto cycles = clim["instructions"].as<uint64_t>();
+        res = vm->start(cycles, dump);
+    } catch (std::exception &e) {
+        LOG(ERROR) << "Unhandled Exception reached the top of main: " << e.what() << ", application will now exit"
+                   << std::endl;
+        res = 2;
+    }
+    // cleanup to let plugins report of needed
+    for (auto *p : plugin_list) {
+        delete p;
+    }
+    return res;
+}

src/plugin/GCOV.cpp

@@ -0,0 +1,821 @@
+//===- GCOV.cpp - LLVM coverage tool --------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// GCOV implements the interface to read and write coverage files that use
+// 'gcov' format.
+//
+//===----------------------------------------------------------------------===//
+
+#include "GCOV.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <system_error>
+
+using namespace llvm;
+
+//===----------------------------------------------------------------------===//
+// GCOVFile implementation.
+
+/// readGCNO - Read GCNO buffer.
+bool GCOVFile::readGCNO(GCOVBuffer &Buffer) {
+  if (!Buffer.readGCNOFormat())
+    return false;
+  if (!Buffer.readGCOVVersion(Version))
+    return false;
+
+  if (!Buffer.readInt(Checksum))
+    return false;
+  while (true) {
+    if (!Buffer.readFunctionTag())
+      break;
+    auto GFun = make_unique<GCOVFunction>(*this);
+    if (!GFun->readGCNO(Buffer, Version))
+      return false;
+    Functions.push_back(std::move(GFun));
+  }
+
+  GCNOInitialized = true;
+  return true;
+}
+
+/// readGCDA - Read GCDA buffer. It is required that readGCDA() can only be
+/// called after readGCNO().
+bool GCOVFile::readGCDA(GCOVBuffer &Buffer) {
+  assert(GCNOInitialized && "readGCDA() can only be called after readGCNO()");
+  if (!Buffer.readGCDAFormat())
+    return false;
+  GCOV::GCOVVersion GCDAVersion;
+  if (!Buffer.readGCOVVersion(GCDAVersion))
+    return false;
+  if (Version != GCDAVersion) {
+    errs() << "GCOV versions do not match.\n";
+    return false;
+  }
+
+  uint32_t GCDAChecksum;
+  if (!Buffer.readInt(GCDAChecksum))
+    return false;
+  if (Checksum != GCDAChecksum) {
+    errs() << "File checksums do not match: " << Checksum
+           << " != " << GCDAChecksum << ".\n";
+    return false;
+  }
+  for (size_t i = 0, e = Functions.size(); i < e; ++i) {
+    if (!Buffer.readFunctionTag()) {
+      errs() << "Unexpected number of functions.\n";
+      return false;
+    }
+    if (!Functions[i]->readGCDA(Buffer, Version))
+      return false;
+  }
+  if (Buffer.readObjectTag()) {
+    uint32_t Length;
+    uint32_t Dummy;
+    if (!Buffer.readInt(Length))
+      return false;
+    if (!Buffer.readInt(Dummy))
+      return false; // checksum
+    if (!Buffer.readInt(Dummy))
+      return false; // num
+    if (!Buffer.readInt(RunCount))
+      return false;
+    Buffer.advanceCursor(Length - 3);
+  }
+  while (Buffer.readProgramTag()) {
+    uint32_t Length;
+    if (!Buffer.readInt(Length))
+      return false;
+    Buffer.advanceCursor(Length);
+    ++ProgramCount;
+  }
+
+  return true;
+}
+
+void GCOVFile::print(raw_ostream &OS) const {
+  for (const auto &FPtr : Functions)
+    FPtr->print(OS);
+}
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+/// dump - Dump GCOVFile content to dbgs() for debugging purposes.
+LLVM_DUMP_METHOD void GCOVFile::dump() const {
+  print(dbgs());
+}
+#endif
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVFile::collectLineCounts(FileInfo &FI) {
+  for (const auto &FPtr : Functions)
+    FPtr->collectLineCounts(FI);
+  FI.setRunCount(RunCount);
+  FI.setProgramCount(ProgramCount);
+}
+
+//===----------------------------------------------------------------------===//
+// GCOVFunction implementation.
+
+/// readGCNO - Read a function from the GCNO buffer. Return false if an error
+/// occurs.
+bool GCOVFunction::readGCNO(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
+  uint32_t Dummy;
+  if (!Buff.readInt(Dummy))
+    return false; // Function header length
+  if (!Buff.readInt(Ident))
+    return false;
+  if (!Buff.readInt(Checksum))
+    return false;
+  if (Version != GCOV::V402) {
+    uint32_t CfgChecksum;
+    if (!Buff.readInt(CfgChecksum))
+      return false;
+    if (Parent.getChecksum() != CfgChecksum) {
+      errs() << "File checksums do not match: " << Parent.getChecksum()
+             << " != " << CfgChecksum << " in (" << Name << ").\n";
+      return false;
+    }
+  }
+  if (!Buff.readString(Name))
+    return false;
+  if (!Buff.readString(Filename))
+    return false;
+  if (!Buff.readInt(LineNumber))
+    return false;
+
+  // read blocks.
+  if (!Buff.readBlockTag()) {
+    errs() << "Block tag not found.\n";
+    return false;
+  }
+  uint32_t BlockCount;
+  if (!Buff.readInt(BlockCount))
+    return false;
+  for (uint32_t i = 0, e = BlockCount; i != e; ++i) {
+    if (!Buff.readInt(Dummy))
+      return false; // Block flags;
+    Blocks.push_back(make_unique<GCOVBlock>(*this, i));
+  }
+
+  // read edges.
+  while (Buff.readEdgeTag()) {
+    uint32_t EdgeCount;
+    if (!Buff.readInt(EdgeCount))
+      return false;
+    EdgeCount = (EdgeCount - 1) / 2;
+    uint32_t BlockNo;
+    if (!Buff.readInt(BlockNo))
+      return false;
+    if (BlockNo >= BlockCount) {
+      errs() << "Unexpected block number: " << BlockNo << " (in " << Name
+             << ").\n";
+      return false;
+    }
+    for (uint32_t i = 0, e = EdgeCount; i != e; ++i) {
+      uint32_t Dst;
+      if (!Buff.readInt(Dst))
+        return false;
+      Edges.push_back(make_unique<GCOVEdge>(*Blocks[BlockNo], *Blocks[Dst]));
+      GCOVEdge *Edge = Edges.back().get();
+      Blocks[BlockNo]->addDstEdge(Edge);
+      Blocks[Dst]->addSrcEdge(Edge);
+      if (!Buff.readInt(Dummy))
+        return false; // Edge flag
+    }
+  }
+
+  // read line table.
+  while (Buff.readLineTag()) {
+    uint32_t LineTableLength;
+    // Read the length of this line table.
+    if (!Buff.readInt(LineTableLength))
+      return false;
+    uint32_t EndPos = Buff.getCursor() + LineTableLength * 4;
+    uint32_t BlockNo;
+    // Read the block number this table is associated with.
+    if (!Buff.readInt(BlockNo))
+      return false;
+    if (BlockNo >= BlockCount) {
+      errs() << "Unexpected block number: " << BlockNo << " (in " << Name
+             << ").\n";
+      return false;
+    }
+    GCOVBlock &Block = *Blocks[BlockNo];
+    // Read the word that pads the beginning of the line table. This may be a
+    // flag of some sort, but seems to always be zero.
+    if (!Buff.readInt(Dummy))
+      return false;
+
+    // Line information starts here and continues up until the last word.
+    if (Buff.getCursor() != (EndPos - sizeof(uint32_t))) {
+      StringRef F;
+      // Read the source file name.
+      if (!Buff.readString(F))
+        return false;
+      if (Filename != F) {
+        errs() << "Multiple sources for a single basic block: " << Filename
+               << " != " << F << " (in " << Name << ").\n";
+        return false;
+      }
+      // Read lines up to, but not including, the null terminator.
+      while (Buff.getCursor() < (EndPos - 2 * sizeof(uint32_t))) {
+        uint32_t Line;
+        if (!Buff.readInt(Line))
+          return false;
+        // Line 0 means this instruction was injected by the compiler. Skip it.
+        if (!Line)
+          continue;
+        Block.addLine(Line);
+      }
+      // Read the null terminator.
+      if (!Buff.readInt(Dummy))
+        return false;
+    }
+    // The last word is either a flag or padding, it isn't clear which. Skip
+    // over it.
+    if (!Buff.readInt(Dummy))
+      return false;
+  }
+  return true;
+}
+
+/// readGCDA - Read a function from the GCDA buffer. Return false if an error
+/// occurs.
+bool GCOVFunction::readGCDA(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
+  uint32_t HeaderLength;
+  if (!Buff.readInt(HeaderLength))
+    return false; // Function header length
+
+  uint64_t EndPos = Buff.getCursor() + HeaderLength * sizeof(uint32_t);
+
+  uint32_t GCDAIdent;
+  if (!Buff.readInt(GCDAIdent))
+    return false;
+  if (Ident != GCDAIdent) {
+    errs() << "Function identifiers do not match: " << Ident
+           << " != " << GCDAIdent << " (in " << Name << ").\n";
+    return false;
+  }
+
+  uint32_t GCDAChecksum;
+  if (!Buff.readInt(GCDAChecksum))
+    return false;
+  if (Checksum != GCDAChecksum) {
+    errs() << "Function checksums do not match: " << Checksum
+           << " != " << GCDAChecksum << " (in " << Name << ").\n";
+    return false;
+  }
+
+  uint32_t CfgChecksum;
+  if (Version != GCOV::V402) {
+    if (!Buff.readInt(CfgChecksum))
+      return false;
+    if (Parent.getChecksum() != CfgChecksum) {
+      errs() << "File checksums do not match: " << Parent.getChecksum()
+             << " != " << CfgChecksum << " (in " << Name << ").\n";
+      return false;
+    }
+  }
+
+  if (Buff.getCursor() < EndPos) {
+    StringRef GCDAName;
+    if (!Buff.readString(GCDAName))
+      return false;
+    if (Name != GCDAName) {
+      errs() << "Function names do not match: " << Name << " != " << GCDAName
+             << ".\n";
+      return false;
+    }
+  }
+
+  if (!Buff.readArcTag()) {
+    errs() << "Arc tag not found (in " << Name << ").\n";
+    return false;
+  }
+
+  uint32_t Count;
+  if (!Buff.readInt(Count))
+    return false;
+  Count /= 2;
+
+  // This for loop adds the counts for each block. A second nested loop is
+  // required to combine the edge counts that are contained in the GCDA file.
+  for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) {
+    // The last block is always reserved for exit block
+    if (BlockNo >= Blocks.size()) {
+      errs() << "Unexpected number of edges (in " << Name << ").\n";
+      return false;
+    }
+    if (BlockNo == Blocks.size() - 1)
+      errs() << "(" << Name << ") has arcs from exit block.\n";
+    GCOVBlock &Block = *Blocks[BlockNo];
+    for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End;
+         ++EdgeNo) {
+      if (Count == 0) {
+        errs() << "Unexpected number of edges (in " << Name << ").\n";
+        return false;
+      }
+      uint64_t ArcCount;
+      if (!Buff.readInt64(ArcCount))
+        return false;
+      Block.addCount(EdgeNo, ArcCount);
+      --Count;
+    }
+    Block.sortDstEdges();
+  }
+  return true;
+}
+
+/// getEntryCount - Get the number of times the function was called by
+/// retrieving the entry block's count.
+uint64_t GCOVFunction::getEntryCount() const {
+  return Blocks.front()->getCount();
+}
+
+/// getExitCount - Get the number of times the function returned by retrieving
+/// the exit block's count.
+uint64_t GCOVFunction::getExitCount() const {
+  return Blocks.back()->getCount();
+}
+
+void GCOVFunction::print(raw_ostream &OS) const {
+  OS << "===== " << Name << " (" << Ident << ") @ " << Filename << ":"
+     << LineNumber << "\n";
+  for (const auto &Block : Blocks)
+    Block->print(OS);
+}
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
+LLVM_DUMP_METHOD void GCOVFunction::dump() const {
+  print(dbgs());
+}
+#endif
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVFunction::collectLineCounts(FileInfo &FI) {
+  // If the line number is zero, this is a function that doesn't actually appear
+  // in the source file, so there isn't anything we can do with it.
+  if (LineNumber == 0)
+    return;
+
+  for (const auto &Block : Blocks)
+    Block->collectLineCounts(FI);
+  FI.addFunctionLine(Filename, LineNumber, this);
+}
+
+//===----------------------------------------------------------------------===//
+// GCOVBlock implementation.
+
+/// ~GCOVBlock - Delete GCOVBlock and its content.
+GCOVBlock::~GCOVBlock() {
+  SrcEdges.clear();
+  DstEdges.clear();
+  Lines.clear();
+}
+
+/// addCount - Add to block counter while storing the edge count. If the
+/// destination has no outgoing edges, also update that block's count too.
+void GCOVBlock::addCount(size_t DstEdgeNo, uint64_t N) {
+  assert(DstEdgeNo < DstEdges.size()); // up to caller to ensure EdgeNo is valid
+  DstEdges[DstEdgeNo]->Count = N;
+  Counter += N;
+  if (!DstEdges[DstEdgeNo]->Dst.getNumDstEdges())
+    DstEdges[DstEdgeNo]->Dst.Counter += N;
+}
+
+/// sortDstEdges - Sort destination edges by block number, nop if already
+/// sorted. This is required for printing branch info in the correct order.
+void GCOVBlock::sortDstEdges() {
+  if (!DstEdgesAreSorted) {
+    SortDstEdgesFunctor SortEdges;
+    std::stable_sort(DstEdges.begin(), DstEdges.end(), SortEdges);
+  }
+}
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVBlock::collectLineCounts(FileInfo &FI) {
+  for (uint32_t N : Lines)
+    FI.addBlockLine(Parent.getFilename(), N, this);
+}
+
+void GCOVBlock::print(raw_ostream &OS) const {
+  OS << "Block : " << Number << " Counter : " << Counter << "\n";
+  if (!SrcEdges.empty()) {
+    OS << "\tSource Edges : ";
+    for (const GCOVEdge *Edge : SrcEdges)
+      OS << Edge->Src.Number << " (" << Edge->Count << "), ";
+    OS << "\n";
+  }
+  if (!DstEdges.empty()) {
+    OS << "\tDestination Edges : ";
+    for (const GCOVEdge *Edge : DstEdges)
+      OS << Edge->Dst.Number << " (" << Edge->Count << "), ";
+    OS << "\n";
+  }
+  if (!Lines.empty()) {
+    OS << "\tLines : ";
+    for (uint32_t N : Lines)
+      OS << (N) << ",";
+    OS << "\n";
+  }
+}
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+/// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
+LLVM_DUMP_METHOD void GCOVBlock::dump() const {
+  print(dbgs());
+}
+#endif
+
+//===----------------------------------------------------------------------===//
+// FileInfo implementation.
+
+// Safe integer division, returns 0 if numerator is 0.
+static uint32_t safeDiv(uint64_t Numerator, uint64_t Divisor) {
+  if (!Numerator)
+    return 0;
+  return Numerator / Divisor;
+}
+
+// This custom division function mimics gcov's branch ouputs:
+//   - Round to closest whole number
+//   - Only output 0% or 100% if it's exactly that value
+static uint32_t branchDiv(uint64_t Numerator, uint64_t Divisor) {
+  if (!Numerator)
+    return 0;
+  if (Numerator == Divisor)
+    return 100;
+
+  uint8_t Res = (Numerator * 100 + Divisor / 2) / Divisor;
+  if (Res == 0)
+    return 1;
+  if (Res == 100)
+    return 99;
+  return Res;
+}
+
+namespace {
+struct formatBranchInfo {
+  formatBranchInfo(const GCOV::Options &Options, uint64_t Count, uint64_t Total)
+      : Options(Options), Count(Count), Total(Total) {}
+
+  void print(raw_ostream &OS) const {
+    if (!Total)
+      OS << "never executed";
+    else if (Options.BranchCount)
+      OS << "taken " << Count;
+    else
+      OS << "taken " << branchDiv(Count, Total) << "%";
+  }
+
+  const GCOV::Options &Options;
+  uint64_t Count;
+  uint64_t Total;
+};
+
+static raw_ostream &operator<<(raw_ostream &OS, const formatBranchInfo &FBI) {
+  FBI.print(OS);
+  return OS;
+}
+
+class LineConsumer {
+  std::unique_ptr<MemoryBuffer> Buffer;
+  StringRef Remaining;
+
+public:
+  LineConsumer(StringRef Filename) {
+    ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
+        MemoryBuffer::getFileOrSTDIN(Filename);
+    if (std::error_code EC = BufferOrErr.getError()) {
+      errs() << Filename << ": " << EC.message() << "\n";
+      Remaining = "";
+    } else {
+      Buffer = std::move(BufferOrErr.get());
+      Remaining = Buffer->getBuffer();
+    }
+  }
+  bool empty() { return Remaining.empty(); }
+  void printNext(raw_ostream &OS, uint32_t LineNum) {
+    StringRef Line;
+    if (empty())
+      Line = "/*EOF*/";
+    else
+      std::tie(Line, Remaining) = Remaining.split("\n");
+    OS << format("%5u:", LineNum) << Line << "\n";
+  }
+};
+} // end anonymous namespace
+
+/// Convert a path to a gcov filename. If PreservePaths is true, this
+/// translates "/" to "#", ".." to "^", and drops ".", to match gcov.
+static std::string mangleCoveragePath(StringRef Filename, bool PreservePaths) {
+  if (!PreservePaths)
+    return sys::path::filename(Filename).str();
+
+  // This behaviour is defined by gcov in terms of text replacements, so it's
+  // not likely to do anything useful on filesystems with different textual
+  // conventions.
+  llvm::SmallString<256> Result("");
+  StringRef::iterator I, S, E;
+  for (I = S = Filename.begin(), E = Filename.end(); I != E; ++I) {
+    if (*I != '/')
+      continue;
+
+    if (I - S == 1 && *S == '.') {
+      // ".", the current directory, is skipped.
+    } else if (I - S == 2 && *S == '.' && *(S + 1) == '.') {
+      // "..", the parent directory, is replaced with "^".
+      Result.append("^#");
+    } else {
+      if (S < I)
+        // Leave other components intact,
+        Result.append(S, I);
+      // And separate with "#".
+      Result.push_back('#');
+    }
+    S = I + 1;
+  }
+
+  if (S < I)
+    Result.append(S, I);
+  return Result.str();
+}
+
+std::string FileInfo::getCoveragePath(StringRef Filename,
+                                      StringRef MainFilename) {
+  if (Options.NoOutput)
+    // This is probably a bug in gcov, but when -n is specified, paths aren't
+    // mangled at all, and the -l and -p options are ignored. Here, we do the
+    // same.
+    return Filename;
+
+  std::string CoveragePath;
+  if (Options.LongFileNames && !Filename.equals(MainFilename))
+    CoveragePath =
+        mangleCoveragePath(MainFilename, Options.PreservePaths) + "##";
+  CoveragePath += mangleCoveragePath(Filename, Options.PreservePaths) + ".gcov";
+  return CoveragePath;
+}
+
+std::unique_ptr<raw_ostream>
+FileInfo::openCoveragePath(StringRef CoveragePath) {
+  if (Options.NoOutput)
+    return llvm::make_unique<raw_null_ostream>();
+
+  std::error_code EC;
+  auto OS = llvm::make_unique<raw_fd_ostream>(CoveragePath, EC,
+                                              sys::fs::F_Text);
+  if (EC) {
+    errs() << EC.message() << "\n";
+    return llvm::make_unique<raw_null_ostream>();
+  }
+  return std::move(OS);
+}
+
+/// print -  Print source files with collected line count information.
+void FileInfo::print(raw_ostream &InfoOS, StringRef MainFilename,
+                     StringRef GCNOFile, StringRef GCDAFile) {
+  SmallVector<StringRef, 4> Filenames;
+  for (const auto &LI : LineInfo)
+    Filenames.push_back(LI.first());
+  std::sort(Filenames.begin(), Filenames.end());
+
+  for (StringRef Filename : Filenames) {
+    auto AllLines = LineConsumer(Filename);
+
+    std::string CoveragePath = getCoveragePath(Filename, MainFilename);
+    std::unique_ptr<raw_ostream> CovStream = openCoveragePath(CoveragePath);
+    raw_ostream &CovOS = *CovStream;
+
+    CovOS << "        -:    0:Source:" << Filename << "\n";
+    CovOS << "        -:    0:Graph:" << GCNOFile << "\n";
+    CovOS << "        -:    0:Data:" << GCDAFile << "\n";
+    CovOS << "        -:    0:Runs:" << RunCount << "\n";
+    CovOS << "        -:    0:Programs:" << ProgramCount << "\n";
+
+    const LineData &Line = LineInfo[Filename];
+    GCOVCoverage FileCoverage(Filename);
+    for (uint32_t LineIndex = 0; LineIndex < Line.LastLine || !AllLines.empty();
+         ++LineIndex) {
+      if (Options.BranchInfo) {
+        FunctionLines::const_iterator FuncsIt = Line.Functions.find(LineIndex);
+        if (FuncsIt != Line.Functions.end())
+          printFunctionSummary(CovOS, FuncsIt->second);
+      }
+
+      BlockLines::const_iterator BlocksIt = Line.Blocks.find(LineIndex);
+      if (BlocksIt == Line.Blocks.end()) {
+        // No basic blocks are on this line. Not an executable line of code.
+        CovOS << "        -:";
+        AllLines.printNext(CovOS, LineIndex + 1);
+      } else {
+        const BlockVector &Blocks = BlocksIt->second;
+
+        // Add up the block counts to form line counts.
+        DenseMap<const GCOVFunction *, bool> LineExecs;
+        uint64_t LineCount = 0;
+        for (const GCOVBlock *Block : Blocks) {
+          if (Options.AllBlocks) {
+            // Only take the highest block count for that line.
+            uint64_t BlockCount = Block->getCount();
+            LineCount = LineCount > BlockCount ? LineCount : BlockCount;
+          } else {
+            // Sum up all of the block counts.
+            LineCount += Block->getCount();
+          }
+
+          if (Options.FuncCoverage) {
+            // This is a slightly convoluted way to most accurately gather line
+            // statistics for functions. Basically what is happening is that we
+            // don't want to count a single line with multiple blocks more than
+            // once. However, we also don't simply want to give the total line
+            // count to every function that starts on the line. Thus, what is
+            // happening here are two things:
+            // 1) Ensure that the number of logical lines is only incremented
+            //    once per function.
+            // 2) If there are multiple blocks on the same line, ensure that the
+            //    number of lines executed is incremented as long as at least
+            //    one of the blocks are executed.
+            const GCOVFunction *Function = &Block->getParent();
+            if (FuncCoverages.find(Function) == FuncCoverages.end()) {
+              std::pair<const GCOVFunction *, GCOVCoverage> KeyValue(
+                  Function, GCOVCoverage(Function->getName()));
+              FuncCoverages.insert(KeyValue);
+            }
+            GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
+
+            if (LineExecs.find(Function) == LineExecs.end()) {
+              if (Block->getCount()) {
+                ++FuncCoverage.LinesExec;
+                LineExecs[Function] = true;
+              } else {
+                LineExecs[Function] = false;
+              }
+              ++FuncCoverage.LogicalLines;
+            } else if (!LineExecs[Function] && Block->getCount()) {
+              ++FuncCoverage.LinesExec;
+              LineExecs[Function] = true;
+            }
+          }
+        }
+
+        if (LineCount == 0)
+          CovOS << "    #####:";
+        else {
+          CovOS << format("%9" PRIu64 ":", LineCount);
+          ++FileCoverage.LinesExec;
+        }
+        ++FileCoverage.LogicalLines;
+
+        AllLines.printNext(CovOS, LineIndex + 1);
+
+        uint32_t BlockNo = 0;
+        uint32_t EdgeNo = 0;
+        for (const GCOVBlock *Block : Blocks) {
+          // Only print block and branch information at the end of the block.
+          if (Block->getLastLine() != LineIndex + 1)
+            continue;
+          if (Options.AllBlocks)
+            printBlockInfo(CovOS, *Block, LineIndex, BlockNo);
+          if (Options.BranchInfo) {
+            size_t NumEdges = Block->getNumDstEdges();
+            if (NumEdges > 1)
+              printBranchInfo(CovOS, *Block, FileCoverage, EdgeNo);
+            else if (Options.UncondBranch && NumEdges == 1)
+              printUncondBranchInfo(CovOS, EdgeNo,
+                                    (*Block->dst_begin())->Count);
+          }
+        }
+      }
+    }
+    FileCoverages.push_back(std::make_pair(CoveragePath, FileCoverage));
+  }
+
+  // FIXME: There is no way to detect calls given current instrumentation.
+  if (Options.FuncCoverage)
+    printFuncCoverage(InfoOS);
+  printFileCoverage(InfoOS);
+}
+
+/// printFunctionSummary - Print function and block summary.
+void FileInfo::printFunctionSummary(raw_ostream &OS,
+                                    const FunctionVector &Funcs) const {
+  for (const GCOVFunction *Func : Funcs) {
+    uint64_t EntryCount = Func->getEntryCount();
+    uint32_t BlocksExec = 0;
+    for (const GCOVBlock &Block : Func->blocks())
+      if (Block.getNumDstEdges() && Block.getCount())
+        ++BlocksExec;
+
+    OS << "function " << Func->getName() << " called " << EntryCount
+       << " returned " << safeDiv(Func->getExitCount() * 100, EntryCount)
+       << "% blocks executed "
+       << safeDiv(BlocksExec * 100, Func->getNumBlocks() - 1) << "%\n";
+  }
+}
+
+/// printBlockInfo - Output counts for each block.
+void FileInfo::printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
+                              uint32_t LineIndex, uint32_t &BlockNo) const {
+  if (Block.getCount() == 0)
+    OS << "    $$$$$:";
+  else
+    OS << format("%9" PRIu64 ":", Block.getCount());
+  OS << format("%5u-block %2u\n", LineIndex + 1, BlockNo++);
+}
+
+/// printBranchInfo - Print conditional branch probabilities.
+void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
+                               GCOVCoverage &Coverage, uint32_t &EdgeNo) {
+  SmallVector<uint64_t, 16> BranchCounts;
+  uint64_t TotalCounts = 0;
+  for (const GCOVEdge *Edge : Block.dsts()) {
+    BranchCounts.push_back(Edge->Count);
+    TotalCounts += Edge->Count;
+    if (Block.getCount())
+      ++Coverage.BranchesExec;
+    if (Edge->Count)
+      ++Coverage.BranchesTaken;
+    ++Coverage.Branches;
+
+    if (Options.FuncCoverage) {
+      const GCOVFunction *Function = &Block.getParent();
+      GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
+      if (Block.getCount())
+        ++FuncCoverage.BranchesExec;
+      if (Edge->Count)
+        ++FuncCoverage.BranchesTaken;
+      ++FuncCoverage.Branches;
+    }
+  }
+
+  for (uint64_t N : BranchCounts)
+    OS << format("branch %2u ", EdgeNo++)
+       << formatBranchInfo(Options, N, TotalCounts) << "\n";
+}
+
+/// printUncondBranchInfo - Print unconditional branch probabilities.
+void FileInfo::printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
+                                     uint64_t Count) const {
+  OS << format("unconditional %2u ", EdgeNo++)
+     << formatBranchInfo(Options, Count, Count) << "\n";
+}
+
+// printCoverage - Print generic coverage info used by both printFuncCoverage
+// and printFileCoverage.
+void FileInfo::printCoverage(raw_ostream &OS,
+                             const GCOVCoverage &Coverage) const {
+  OS << format("Lines executed:%.2f%% of %u\n",
+               double(Coverage.LinesExec) * 100 / Coverage.LogicalLines,
+               Coverage.LogicalLines);
+  if (Options.BranchInfo) {
+    if (Coverage.Branches) {
+      OS << format("Branches executed:%.2f%% of %u\n",
+                   double(Coverage.BranchesExec) * 100 / Coverage.Branches,
+                   Coverage.Branches);
+      OS << format("Taken at least once:%.2f%% of %u\n",
+                   double(Coverage.BranchesTaken) * 100 / Coverage.Branches,
+                   Coverage.Branches);
+    } else {
+      OS << "No branches\n";
+    }
+    OS << "No calls\n"; // to be consistent with gcov
+  }
+}
+
+// printFuncCoverage - Print per-function coverage info.
+void FileInfo::printFuncCoverage(raw_ostream &OS) const {
+  for (const auto &FC : FuncCoverages) {
+    const GCOVCoverage &Coverage = FC.second;
+    OS << "Function '" << Coverage.Name << "'\n";
+    printCoverage(OS, Coverage);
+    OS << "\n";
+  }
+}
+
+// printFileCoverage - Print per-file coverage info.
+void FileInfo::printFileCoverage(raw_ostream &OS) const {
+  for (const auto &FC : FileCoverages) {
+    const std::string &Filename = FC.first;
+    const GCOVCoverage &Coverage = FC.second;
+    OS << "File '" << Coverage.Name << "'\n";
+    printCoverage(OS, Coverage);
+    if (!Options.NoOutput)
+      OS << Coverage.Name << ":creating '" << Filename << "'\n";
+    OS << "\n";
+  }
+}

src/plugin/GCOV.h

@@ -0,0 +1,460 @@
+//===- GCOV.h - LLVM coverage tool ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This header provides the interface to read and write coverage files that
+// use 'gcov' format.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_PROFILEDATA_GCOV_H
+#define LLVM_PROFILEDATA_GCOV_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/MapVector.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/iterator.h"
+#include "llvm/ADT/iterator_range.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <utility>
+
+namespace llvm {
+
+class GCOVFunction;
+class GCOVBlock;
+class FileInfo;
+
+namespace GCOV {
+
+enum GCOVVersion { V402, V404, V704 };
+
+/// \brief A struct for passing gcov options between functions.
+struct Options {
+  Options(bool A, bool B, bool C, bool F, bool P, bool U, bool L, bool N)
+      : AllBlocks(A), BranchInfo(B), BranchCount(C), FuncCoverage(F),
+        PreservePaths(P), UncondBranch(U), LongFileNames(L), NoOutput(N) {}
+
+  bool AllBlocks;
+  bool BranchInfo;
+  bool BranchCount;
+  bool FuncCoverage;
+  bool PreservePaths;
+  bool UncondBranch;
+  bool LongFileNames;
+  bool NoOutput;
+};
+
+} // end namespace GCOV
+
+/// GCOVBuffer - A wrapper around MemoryBuffer to provide GCOV specific
+/// read operations.
+class GCOVBuffer {
+public:
+  GCOVBuffer(MemoryBuffer *B) : Buffer(B) {}
+
+  /// readGCNOFormat - Check GCNO signature is valid at the beginning of buffer.
+  bool readGCNOFormat() {
+    StringRef File = Buffer->getBuffer().slice(0, 4);
+    if (File != "oncg") {
+      errs() << "Unexpected file type: " << File << ".\n";
+      return false;
+    }
+    Cursor = 4;
+    return true;
+  }
+
+  /// readGCDAFormat - Check GCDA signature is valid at the beginning of buffer.
+  bool readGCDAFormat() {
+    StringRef File = Buffer->getBuffer().slice(0, 4);
+    if (File != "adcg") {
+      errs() << "Unexpected file type: " << File << ".\n";
+      return false;
+    }
+    Cursor = 4;
+    return true;
+  }
+
+  /// readGCOVVersion - Read GCOV version.
+  bool readGCOVVersion(GCOV::GCOVVersion &Version) {
+    StringRef VersionStr = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (VersionStr == "*204") {
+      Cursor += 4;
+      Version = GCOV::V402;
+      return true;
+    }
+    if (VersionStr == "*404") {
+      Cursor += 4;
+      Version = GCOV::V404;
+      return true;
+    }
+    if (VersionStr == "*704") {
+      Cursor += 4;
+      Version = GCOV::V704;
+      return true;
+    }
+    errs() << "Unexpected version: " << VersionStr << ".\n";
+    return false;
+  }
+
+  /// readFunctionTag - If cursor points to a function tag then increment the
+  /// cursor and return true otherwise return false.
+  bool readFunctionTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\0' ||
+        Tag[3] != '\1') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readBlockTag - If cursor points to a block tag then increment the
+  /// cursor and return true otherwise return false.
+  bool readBlockTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\x41' ||
+        Tag[3] != '\x01') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readEdgeTag - If cursor points to an edge tag then increment the
+  /// cursor and return true otherwise return false.
+  bool readEdgeTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\x43' ||
+        Tag[3] != '\x01') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readLineTag - If cursor points to a line tag then increment the
+  /// cursor and return true otherwise return false.
+  bool readLineTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\x45' ||
+        Tag[3] != '\x01') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readArcTag - If cursor points to an gcda arc tag then increment the
+  /// cursor and return true otherwise return false.
+  bool readArcTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\xa1' ||
+        Tag[3] != '\1') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readObjectTag - If cursor points to an object summary tag then increment
+  /// the cursor and return true otherwise return false.
+  bool readObjectTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\0' ||
+        Tag[3] != '\xa1') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  /// readProgramTag - If cursor points to a program summary tag then increment
+  /// the cursor and return true otherwise return false.
+  bool readProgramTag() {
+    StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\0' ||
+        Tag[3] != '\xa3') {
+      return false;
+    }
+    Cursor += 4;
+    return true;
+  }
+
+  bool readInt(uint32_t &Val) {
+    if (Buffer->getBuffer().size() < Cursor + 4) {
+      errs() << "Unexpected end of memory buffer: " << Cursor + 4 << ".\n";
+      return false;
+    }
+    StringRef Str = Buffer->getBuffer().slice(Cursor, Cursor + 4);
+    Cursor += 4;
+    Val = *(const uint32_t *)(Str.data());
+    return true;
+  }
+
+  bool readInt64(uint64_t &Val) {
+    uint32_t Lo, Hi;
+    if (!readInt(Lo) || !readInt(Hi))
+      return false;
+    Val = ((uint64_t)Hi << 32) | Lo;
+    return true;
+  }
+
+  bool readString(StringRef &Str) {
+    uint32_t Len = 0;
+    // Keep reading until we find a non-zero length. This emulates gcov's
+    // behaviour, which appears to do the same.
+    while (Len == 0)
+      if (!readInt(Len))
+        return false;
+    Len *= 4;
+    if (Buffer->getBuffer().size() < Cursor + Len) {
+      errs() << "Unexpected end of memory buffer: " << Cursor + Len << ".\n";
+      return false;
+    }
+    Str = Buffer->getBuffer().slice(Cursor, Cursor + Len).split('\0').first;
+    Cursor += Len;
+    return true;
+  }
+
+  uint64_t getCursor() const { return Cursor; }
+  void advanceCursor(uint32_t n) { Cursor += n * 4; }
+
+private:
+  MemoryBuffer *Buffer;
+  uint64_t Cursor = 0;
+};
+
+/// GCOVFile - Collects coverage information for one pair of coverage file
+/// (.gcno and .gcda).
+class GCOVFile {
+public:
+  GCOVFile() = default;
+
+  bool readGCNO(GCOVBuffer &Buffer);
+  bool readGCDA(GCOVBuffer &Buffer);
+  uint32_t getChecksum() const { return Checksum; }
+  void print(raw_ostream &OS) const;
+  void dump() const;
+  void collectLineCounts(FileInfo &FI);
+
+private:
+  bool GCNOInitialized = false;
+  GCOV::GCOVVersion Version;
+  uint32_t Checksum = 0;
+  SmallVector<std::unique_ptr<GCOVFunction>, 16> Functions;
+  uint32_t RunCount = 0;
+  uint32_t ProgramCount = 0;
+};
+
+/// GCOVEdge - Collects edge information.
+struct GCOVEdge {
+  GCOVEdge(GCOVBlock &S, GCOVBlock &D) : Src(S), Dst(D) {}
+
+  GCOVBlock &Src;
+  GCOVBlock &Dst;
+  uint64_t Count = 0;
+};
+
+/// GCOVFunction - Collects function information.
+class GCOVFunction {
+public:
+  using BlockIterator = pointee_iterator<SmallVectorImpl<
+      std::unique_ptr<GCOVBlock>>::const_iterator>;
+
+  GCOVFunction(GCOVFile &P) : Parent(P) {}
+
+  bool readGCNO(GCOVBuffer &Buffer, GCOV::GCOVVersion Version);
+  bool readGCDA(GCOVBuffer &Buffer, GCOV::GCOVVersion Version);
+  StringRef getName() const { return Name; }
+  StringRef getFilename() const { return Filename; }
+  size_t getNumBlocks() const { return Blocks.size(); }
+  uint64_t getEntryCount() const;
+  uint64_t getExitCount() const;
+
+  BlockIterator block_begin() const { return Blocks.begin(); }
+  BlockIterator block_end() const { return Blocks.end(); }
+  iterator_range<BlockIterator> blocks() const {
+    return make_range(block_begin(), block_end());
+  }
+
+  void print(raw_ostream &OS) const;
+  void dump() const;
+  void collectLineCounts(FileInfo &FI);
+
+private:
+  GCOVFile &Parent;
+  uint32_t Ident = 0;
+  uint32_t Checksum;
+  uint32_t LineNumber = 0;
+  StringRef Name;
+  StringRef Filename;
+  SmallVector<std::unique_ptr<GCOVBlock>, 16> Blocks;
+  SmallVector<std::unique_ptr<GCOVEdge>, 16> Edges;
+};
+
+/// GCOVBlock - Collects block information.
+class GCOVBlock {
+  struct EdgeWeight {
+    EdgeWeight(GCOVBlock *D) : Dst(D) {}
+
+    GCOVBlock *Dst;
+    uint64_t Count = 0;
+  };
+
+  struct SortDstEdgesFunctor {
+    bool operator()(const GCOVEdge *E1, const GCOVEdge *E2) {
+      return E1->Dst.Number < E2->Dst.Number;
+    }
+  };
+
+public:
+  using EdgeIterator = SmallVectorImpl<GCOVEdge *>::const_iterator;
+
+  GCOVBlock(GCOVFunction &P, uint32_t N) : Parent(P), Number(N) {}
+  ~GCOVBlock();
+
+  const GCOVFunction &getParent() const { return Parent; }
+  void addLine(uint32_t N) { Lines.push_back(N); }
+  uint32_t getLastLine() const { return Lines.back(); }
+  void addCount(size_t DstEdgeNo, uint64_t N);
+  uint64_t getCount() const { return Counter; }
+
+  void addSrcEdge(GCOVEdge *Edge) {
+    assert(&Edge->Dst == this); // up to caller to ensure edge is valid
+    SrcEdges.push_back(Edge);
+  }
+
+  void addDstEdge(GCOVEdge *Edge) {
+    assert(&Edge->Src == this); // up to caller to ensure edge is valid
+    // Check if adding this edge causes list to become unsorted.
+    if (DstEdges.size() && DstEdges.back()->Dst.Number > Edge->Dst.Number)
+      DstEdgesAreSorted = false;
+    DstEdges.push_back(Edge);
+  }
+
+  size_t getNumSrcEdges() const { return SrcEdges.size(); }
+  size_t getNumDstEdges() const { return DstEdges.size(); }
+  void sortDstEdges();
+
+  EdgeIterator src_begin() const { return SrcEdges.begin(); }
+  EdgeIterator src_end() const { return SrcEdges.end(); }
+  iterator_range<EdgeIterator> srcs() const {
+    return make_range(src_begin(), src_end());
+  }
+
+  EdgeIterator dst_begin() const { return DstEdges.begin(); }
+  EdgeIterator dst_end() const { return DstEdges.end(); }
+  iterator_range<EdgeIterator> dsts() const {
+    return make_range(dst_begin(), dst_end());
+  }
+
+  void print(raw_ostream &OS) const;
+  void dump() const;
+  void collectLineCounts(FileInfo &FI);
+
+private:
+  GCOVFunction &Parent;
+  uint32_t Number;
+  uint64_t Counter = 0;
+  bool DstEdgesAreSorted = true;
+  SmallVector<GCOVEdge *, 16> SrcEdges;
+  SmallVector<GCOVEdge *, 16> DstEdges;
+  SmallVector<uint32_t, 16> Lines;
+};
+
+class FileInfo {
+  // It is unlikely--but possible--for multiple functions to be on the same
+  // line.
+  // Therefore this typedef allows LineData.Functions to store multiple
+  // functions
+  // per instance. This is rare, however, so optimize for the common case.
+  using FunctionVector = SmallVector<const GCOVFunction *, 1>;
+  using FunctionLines = DenseMap<uint32_t, FunctionVector>;
+  using BlockVector = SmallVector<const GCOVBlock *, 4>;
+  using BlockLines = DenseMap<uint32_t, BlockVector>;
+
+  struct LineData {
+    LineData() = default;
+
+    BlockLines Blocks;
+    FunctionLines Functions;
+    uint32_t LastLine = 0;
+  };
+
+  struct GCOVCoverage {
+    GCOVCoverage(StringRef Name) : Name(Name) {}
+
+    StringRef Name;
+
+    uint32_t LogicalLines = 0;
+    uint32_t LinesExec = 0;
+
+    uint32_t Branches = 0;
+    uint32_t BranchesExec = 0;
+    uint32_t BranchesTaken = 0;
+  };
+
+public:
+  FileInfo(const GCOV::Options &Options) : Options(Options) {}
+
+  void addBlockLine(StringRef Filename, uint32_t Line, const GCOVBlock *Block) {
+    if (Line > LineInfo[Filename].LastLine)
+      LineInfo[Filename].LastLine = Line;
+    LineInfo[Filename].Blocks[Line - 1].push_back(Block);
+  }
+
+  void addFunctionLine(StringRef Filename, uint32_t Line,
+                       const GCOVFunction *Function) {
+    if (Line > LineInfo[Filename].LastLine)
+      LineInfo[Filename].LastLine = Line;
+    LineInfo[Filename].Functions[Line - 1].push_back(Function);
+  }
+
+  void setRunCount(uint32_t Runs) { RunCount = Runs; }
+  void setProgramCount(uint32_t Programs) { ProgramCount = Programs; }
+  void print(raw_ostream &OS, StringRef MainFilename, StringRef GCNOFile,
+             StringRef GCDAFile);
+
+private:
+  std::string getCoveragePath(StringRef Filename, StringRef MainFilename);
+  std::unique_ptr<raw_ostream> openCoveragePath(StringRef CoveragePath);
+  void printFunctionSummary(raw_ostream &OS, const FunctionVector &Funcs) const;
+  void printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
+                      uint32_t LineIndex, uint32_t &BlockNo) const;
+  void printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
+                       GCOVCoverage &Coverage, uint32_t &EdgeNo);
+  void printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
+                             uint64_t Count) const;
+
+  void printCoverage(raw_ostream &OS, const GCOVCoverage &Coverage) const;
+  void printFuncCoverage(raw_ostream &OS) const;
+  void printFileCoverage(raw_ostream &OS) const;
+
+  const GCOV::Options &Options;
+  StringMap<LineData> LineInfo;
+  uint32_t RunCount = 0;
+  uint32_t ProgramCount = 0;
+
+  using FileCoverageList = SmallVector<std::pair<std::string, GCOVCoverage>, 4>;
+  using FuncCoverageMap = MapVector<const GCOVFunction *, GCOVCoverage>;
+
+  FileCoverageList FileCoverages;
+  FuncCoverageMap FuncCoverages;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_SUPPORT_GCOV_H

src/plugin/cycle_estimate.cpp

@@ -0,0 +1,92 @@
+/*******************************************************************************
+ * Copyright (C) 2017, MINRES Technologies GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Contributors:
+ *       eyck@minres.com - initial API and implementation
+ ******************************************************************************/
+
+#include "iss/plugin/cycle_estimate.h"
+
+#include <iss/arch_if.h>
+#include <util/logging.h>
+#include <fstream>
+
+iss::plugin::cycle_estimate::cycle_estimate(std::string config_file_name)
+: arch_instr(nullptr)
+{
+    if (config_file_name.length() > 0) {
+        std::ifstream is(config_file_name);
+        if (is.is_open()) {
+            try {
+                is >> root;
+            } catch (Json::RuntimeError &e) {
+                LOG(ERROR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
+            }
+        } else {
+            LOG(ERROR) << "Could not open input file " << config_file_name;
+        }
+    }
+}
+
+iss::plugin::cycle_estimate::~cycle_estimate() {
+}
+
+bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if& vm) {
+	arch_instr = vm.get_arch()->get_instrumentation_if();
+	if(!arch_instr) return false;
+	const std::string  core_name = arch_instr->core_type_name();
+    Json::Value &val = root[core_name];
+    if(!val.isNull() && val.isArray()){
+    	delays.reserve(val.size());
+    	for(auto it:val){
+    		auto name = it["name"];
+    		auto size = it["size"];
+    		auto delay = it["delay"];
+    		if(!name.isString() || !size.isUInt() || !(delay.isUInt() || delay.isArray())) throw std::runtime_error("JSON parse error");
+    		if(delay.isUInt()){
+				delays.push_back(instr_desc{size.asUInt(), delay.asUInt(), 0});
+    		} else {
+				delays.push_back(instr_desc{size.asUInt(), delay[0].asUInt(), delay[1].asUInt()});
+    		}
+    	}
+    } else {
+        LOG(ERROR)<<"plugin cycle_estimate: could not find an entry for "<<core_name<<" in JSON file"<<std::endl;
+    }
+	return true;
+
+}
+
+void iss::plugin::cycle_estimate::callback(instr_info_t instr_info) {
+    assert(arch_instr && "No instrumentation interface available but callback executed");
+	auto entry = delays[instr_info.instr_id];
+	bool taken = (arch_instr->get_next_pc()-arch_instr->get_pc()) != (entry.size/8);
+    uint32_t delay = taken ? entry.taken : entry.not_taken;
+    if(delay>1) arch_instr->set_curr_instr_cycles(delay);
+}

src/plugin/instruction_count.cpp

@@ -32,8 +32,8 @@
  *       eyck@minres.com - initial API and implementation
  ******************************************************************************/
 
-#include "instruction_count.h"
-#include <iss/instrumentation_if.h>
+#include "iss/plugin/instruction_count.h"
+#include "iss/instrumentation_if.h"
 
 #include <iss/arch_if.h>
 #include <util/logging.h>
@@ -46,10 +46,10 @@ iss::plugin::instruction_count::instruction_count(std::string config_file_name)
             try {
                 is >> root;
             } catch (Json::RuntimeError &e) {
-                LOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
+                LOG(ERROR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
             }
         } else {
-            LOG(ERR) << "Could not open input file " << config_file_name;
+            LOG(ERROR) << "Could not open input file " << config_file_name;
         }
     }
 }
@@ -85,11 +85,11 @@ bool iss::plugin::instruction_count::registration(const char* const version, vm_
     	}
     	rep_counts.resize(delays.size());
     } else {
-        LOG(ERR)<<"plugin instruction_count: could not find an entry for "<<core_name<<" in JSON file"<<std::endl;
+        LOG(ERROR)<<"plugin instruction_count: could not find an entry for "<<core_name<<" in JSON file"<<std::endl;
     }
 	return true;
 }
 
-void iss::plugin::instruction_count::callback(instr_info_t instr_info, exec_info const&) {
+void iss::plugin::instruction_count::callback(instr_info_t instr_info) {
 	rep_counts[instr_info.instr_id]++;
 }

src/sysc/core_complex.cpp

@@ -30,54 +30,26 @@
  *
  *******************************************************************************/
 
-// clang-format off
-#include <iss/debugger/gdb_session.h>
-#include <iss/debugger/encoderdecoder.h>
-#include <iss/debugger/server.h>
-#include <iss/debugger/target_adapter_if.h>
-#include <iss/iss.h>
-#include <iss/vm_types.h>
-#ifndef WIN32
-#include <iss/plugin/loader.h>
-#endif
-#include "core_complex.h"
-#include <iss/arch/tgc_mapper.h>
-#include <scc/report.h>
-#include <util/ities.h>
+#include "sysc/core_complex.h"
+#include "iss/arch/riscv_hart_m_p.h"
+#include "iss/arch/tgf_c.h"
+#include "iss/debugger/encoderdecoder.h"
+#include "iss/debugger/gdb_session.h"
+#include "iss/debugger/server.h"
+#include "iss/debugger/target_adapter_if.h"
+#include "iss/iss.h"
+#include "iss/vm_types.h"
+#include "scc/report.h"
 #include <iostream>
 #include <sstream>
+
+#ifdef WITH_SCV
 #include <array>
-#include <iss/plugin/cycle_estimate.h>
-#include <iss/plugin/instruction_count.h>
-#include <iss/plugin/pctrace.h>
-
-// clang-format on
-
-#define STR(X) #X
-#define CREATE_CORE(CN) \
-if (type == STR(CN)) { std::tie(cpu, vm) = create_core<CN ## _plat_type>(backend, gdb_port, hart_id); } else
-
-#ifdef HAS_SCV
 #include <scv.h>
-#else
-#include <scv-tr.h>
-using namespace scv_tr;
-#endif
-
-#ifndef CWR_SYSTEMC
-#define GET_PROP_VALUE(P) P.get_value()
-#else
-#define GET_PROP_VALUE(P) P.getValue()
-#endif
-
-#ifdef _MSC_VER
-// not #if defined(_WIN32) || defined(_WIN64) because we have strncasecmp in mingw
-#define strncasecmp _strnicmp
-#define strcasecmp _stricmp
 #endif
 
 namespace sysc {
-namespace tgfs {
+namespace SiFive {
 using namespace std;
 using namespace iss;
 using namespace logging;
@@ -85,43 +57,69 @@ using namespace sc_core;
 
 namespace {
 iss::debugger::encoder_decoder encdec;
-
-std::array<const char, 4> lvl = {{'U', 'S', 'H', 'M'}};
 }
 
-template<typename PLAT>
-class core_wrapper_t : public PLAT {
+using core_type = iss::arch::tgf_c;
+
+namespace {
+
+std::array<const char, 4> lvl = {{'U', 'S', 'H', 'M'}};
+
+std::array<const char*, 16> trap_str = { {
+		"Instruction address misaligned",
+		"Instruction access fault",
+		"Illegal instruction",
+		"Breakpoint",
+		"Load address misaligned",
+		"Load access fault",
+		"Store/AMO address misaligned",
+		"Store/AMO access fault",
+		"Environment call from U-mode",
+		"Environment call from S-mode",
+		"Reserved",
+		"Environment call from M-mode",
+		"Instruction page fault",
+		"Load page fault",
+		"Reserved",
+		"Store/AMO page fault"
+} };
+std::array<const char*, 12> irq_str = { {
+		"User software interrupt", "Supervisor software interrupt", "Reserved", "Machine software interrupt",
+		"User timer interrupt",    "Supervisor timer interrupt",    "Reserved", "Machine timer interrupt",
+		"User external interrupt", "Supervisor external interrupt", "Reserved", "Machine external interrupt" } };
+}
+
+class core_wrapper : public iss::arch::riscv_hart_m_p<core_type> {
 public:
-    using reg_t       = typename arch::traits<typename PLAT::core>::reg_t;
-    using phys_addr_t = typename arch::traits<typename PLAT::core>::phys_addr_t;
-    using heart_state_t = typename PLAT::hart_state_type;
-    core_wrapper_t(core_complex *owner)
+    using base_type = arch::riscv_hart_m_p<core_type>;
+    using phys_addr_t = typename arch::traits<core_type>::phys_addr_t;
+    core_wrapper(core_complex *owner)
     : owner(owner) { }
 
-    uint32_t get_mode() { return this->reg.PRIV; }
+    uint32_t get_mode() { return this->reg.machine_state; }
 
     inline void set_interrupt_execution(bool v) { this->interrupt_sim = v?1:0; }
 
     inline bool get_interrupt_execution() { return this->interrupt_sim; }
 
-    heart_state_t &get_state() { return this->state; }
+    base_type::hart_state<base_type::reg_t> &get_state() { return this->state; }
 
-    void notify_phase(iss::arch_if::exec_phase p) override {
-        if (p == iss::arch_if::ISTART) owner->sync(this->icount);
+    void notify_phase(exec_phase p) override {
+        if (p == ISTART) owner->sync(this->reg.icount + cycle_offset);
     }
 
     sync_type needed_sync() const override { return PRE_SYNC; }
 
     void disass_output(uint64_t pc, const std::string instr) override {
-        if (!owner->disass_output(pc, instr)) {
+        if (INFO <= Log<Output2FILE<disass>>::reporting_level() && Output2FILE<disass>::stream()) {
             std::stringstream s;
-            s << "[p:" << lvl[this->reg.PRIV] << ";s:0x" << std::hex << std::setfill('0')
-              << std::setw(sizeof(reg_t) * 2) << (reg_t)this->state.mstatus << std::dec << ";c:"
-              << this->icount + this->cycle_offset << "]";
-            SCCDEBUG(owner->name())<<"disass: "
+            s << "[p:" << lvl[this->reg.machine_state] << ";s:0x" << std::hex << std::setfill('0')
+              << std::setw(sizeof(reg_t) * 2) << (reg_t)state.mstatus << std::dec << ";c:" << this->reg.icount << "]";
+            Log<Output2FILE<disass>>().get(INFO, "disass")
                 << "0x" << std::setw(16) << std::right << std::setfill('0') << std::hex << pc << "\t\t" << std::setw(40)
                 << std::setfill(' ') << std::left << instr << s.str();
         }
+        owner->disass_output(pc, instr);
     };
 
     status read_mem(phys_addr_t addr, unsigned length, uint8_t *const data) override {
@@ -148,7 +146,6 @@ public:
     }
 
     status read_csr(unsigned addr, reg_t &val) override {
-#ifndef CWR_SYSTEMC
         if((addr==arch::time || addr==arch::timeh) && owner->mtime_o.get_interface(0)){
             uint64_t time_val;
             bool ret = owner->mtime_o->nb_peek(time_val);
@@ -159,44 +156,33 @@ public:
                 val = static_cast<reg_t>(time_val >> 32);
             }
             return ret?Ok:Err;
-#else
-		if((addr==arch::time || addr==arch::timeh)){
-			uint64_t time_val = owner->mtime_i.read();
-			if (addr == iss::arch::time) {
-				val = static_cast<reg_t>(time_val);
-			} else if (addr == iss::arch::timeh) {
-				if (sizeof(reg_t) != 4) return iss::Err;
-				val = static_cast<reg_t>(time_val >> 32);
-			}
-			return Ok;
-#endif
         } else {
-            return PLAT::read_csr(addr, val);
+            return base_type::read_csr(addr, val);
         }
     }
 
     void wait_until(uint64_t flags) override {
         SCCDEBUG(owner->name()) << "Sleeping until interrupt";
-        while(this->pending_trap == 0 && (this->csr[arch::mip] & this->csr[arch::mie]) == 0) {
-            sc_core::wait(wfi_evt);
-        }
-        PLAT::wait_until(flags);
+        do {
+            wait(wfi_evt);
+        } while (this->reg.pending_trap == 0);
+        base_type::wait_until(flags);
     }
 
     void local_irq(short id, bool value) {
-        reg_t mask = 0;
+        base_type::reg_t mask = 0;
         switch (id) {
-        case 3: // SW
+        case 16: // SW
             mask = 1 << 3;
             break;
-        case 7: // timer
+        case 17: // timer
             mask = 1 << 7;
             break;
-        case 11: // external
+        case 18: // external
             mask = 1 << 11;
             break;
         default:
-            if(id>15) mask = 1 << id;
+            /* do nothing*/
             break;
         }
         if (value) {
@@ -205,8 +191,6 @@ public:
         } else
             this->csr[arch::mip] &= ~mask;
         this->check_interrupt();
-        if(value)
-            SCCTRACE(owner->name()) << "Triggering interrupt " << id << " Pending trap: " << this->pending_trap;
     }
 
 private:
@@ -244,101 +228,19 @@ int cmd_sysc(int argc, char *argv[], debugger::out_func of, debugger::data_func
     return Err;
 }
 
-using cpu_ptr = std::unique_ptr<iss::arch_if>;
-using vm_ptr= std::unique_ptr<iss::vm_if>;
-
-class core_wrapper {
-public:
-    core_wrapper(core_complex *owner) : owner(owner) { }
-
-    void reset(uint64_t addr){vm->reset(addr);}
-    inline void start(){vm->start();}
-    inline std::pair<uint64_t, bool> load_file(std::string const& name){ return cpu->load_file(name);};
-
-    std::function<unsigned(void)> get_mode;
-    std::function<uint64_t(void)> get_state;
-    std::function<bool(void)> get_interrupt_execution;
-    std::function<void(bool)> set_interrupt_execution;
-    std::function<void(short, bool)> local_irq;
-
-    template<typename PLAT>
-    std::tuple<cpu_ptr, vm_ptr> create_core(std::string const& backend, unsigned gdb_port, uint32_t hart_id){
-        auto* lcpu = new core_wrapper_t<PLAT>(owner);
-        lcpu->set_mhartid(hart_id);
-        get_mode = [lcpu]() { return lcpu->get_mode(); };
-        get_state = [lcpu]() { return lcpu->get_state().mstatus.backing.val; };
-        get_interrupt_execution = [lcpu]() { return lcpu->get_interrupt_execution(); };
-        set_interrupt_execution = [lcpu](bool b) { return lcpu->set_interrupt_execution(b); };
-        local_irq = [lcpu](short s, bool b) { return lcpu->local_irq(s, b); };
-        if(backend == "interp")
-            return {cpu_ptr{lcpu}, vm_ptr{iss::interp::create(static_cast<typename PLAT::core*>(lcpu), gdb_port)}};
-#ifdef WITH_LLVM
-        if(backend == "llvm")
-            return {cpu_ptr{lcpu}, vm_ptr{iss::llvm::create(lcpu, gdb_port)}};
-#endif
-#ifdef WITH_TCC
-        if(backend == "tcc")
-    s        return {cpu_ptr{lcpu}, vm_ptr{iss::tcc::create(lcpu, gdb_port)}};
-#endif
-        return {nullptr, nullptr};
-    }
-
-    void create_cpu(std::string const& type, std::string const& backend, unsigned gdb_port, uint32_t hart_id){
-        CREATE_CORE(tgc_c)
-#ifdef CORE_TGC_B
-        CREATE_CORE(tgc_b)
-#endif
-#ifdef CORE_TGC_D
-        CREATE_CORE(tgc_d)
-#endif
-#ifdef CORE_TGC_D_XRB_MAC
-        CREATE_CORE(tgc_d_xrb_mac)
-#endif
-#ifdef CORE_TGC_D_XRB_NN
-        CREATE_CORE(tgc_d_xrb_nn)
-#endif
-        {
-            LOG(ERR) << "Illegal argument value for core type: " << type << std::endl;
-        }
-        auto *srv = debugger::server<debugger::gdb_session>::get();
-        if (srv) tgt_adapter = srv->get_target();
-        if (tgt_adapter)
-            tgt_adapter->add_custom_command(
-                {"sysc", [this](int argc, char *argv[], debugger::out_func of,
-                                debugger::data_func df) -> int { return cmd_sysc(argc, argv, of, df, tgt_adapter); },
-                 "SystemC sub-commands: break <time>, print_time"});
-
-    }
-
-    core_complex * const owner;
-    vm_ptr vm{nullptr};
-    cpu_ptr cpu{nullptr};
-    iss::debugger::target_adapter_if *tgt_adapter{nullptr};
-};
-
-struct core_trace {
-    //! transaction recording database
-    scv_tr_db *m_db{nullptr};
-    //! blocking transaction recording stream handle
-    scv_tr_stream *stream_handle{nullptr};
-    //! transaction generator handle for blocking transactions
-    scv_tr_generator<_scv_tr_generator_default_data, _scv_tr_generator_default_data> *instr_tr_handle{nullptr};
-    scv_tr_handle tr_handle;
-};
-
-SC_HAS_PROCESS(core_complex);// NOLINT
-#ifndef CWR_SYSTEMC
-core_complex::core_complex(sc_module_name const& name)
+core_complex::core_complex(sc_module_name name)
 : sc_module(name)
 , read_lut(tlm_dmi_ext())
 , write_lut(tlm_dmi_ext())
-{
-	init();
-}
+, tgt_adapter(nullptr)
+#ifdef WITH_SCV
+, m_db(scv_tr_db::get_default_db())
+, stream_handle(nullptr)
+, instr_tr_handle(nullptr)
+, fetch_tr_handle(nullptr)
 #endif
-
-void core_complex::init(){
-	trc=new core_trace();
+{
+    SC_HAS_PROCESS(core_complex);// NOLINT
     initiator.register_invalidate_direct_mem_ptr([=](uint64_t start, uint64_t end) -> void {
         auto lut_entry = read_lut.getEntry(start);
         if (lut_entry.get_granted_access() != tlm::tlm_dmi::DMI_ACCESS_NONE && end <= lut_entry.get_end_address() + 1) {
@@ -351,164 +253,116 @@ void core_complex::init(){
     });
 
     SC_THREAD(run);
+    SC_METHOD(clk_cb);
+    sensitive << clk_i;
     SC_METHOD(rst_cb);
     sensitive << rst_i;
     SC_METHOD(sw_irq_cb);
     sensitive << sw_irq_i;
     SC_METHOD(timer_irq_cb);
     sensitive << timer_irq_i;
-    SC_METHOD(ext_irq_cb);
-    sensitive << ext_irq_i;
-    SC_METHOD(local_irq_cb);
-    for(auto pin:local_irq_i)
-        sensitive << pin;
-    trc->m_db=scv_tr_db::get_default_db();
-
-	SC_METHOD(forward);
-#ifndef CWR_SYSTEMC
-	sensitive<<clk_i;
-#else
-	sensitive<<curr_clk;
-	t2t.reset(new scc::tick2time{"t2t"});
-	t2t->clk_i(clk_i);
-	t2t->clk_o(curr_clk);
-#endif
+    SC_METHOD(global_irq_cb);
+    sensitive << global_irq_i;
 }
 
-core_complex::~core_complex(){
-    delete cpu;
-    delete trc;
-    for (auto *p : plugin_list)
-        delete p;
-}
+core_complex::~core_complex() = default;
 
 void core_complex::trace(sc_trace_file *trf) const {}
 
-void core_complex::before_end_of_elaboration() {
-    SCCDEBUG(SCMOD)<<"instantiating iss::arch::tgf with "<<GET_PROP_VALUE(backend)<<" backend";
-    // cpu = scc::make_unique<core_wrapper>(this);
-    cpu = new core_wrapper(this);
-    cpu->create_cpu(GET_PROP_VALUE(core_type), GET_PROP_VALUE(backend), GET_PROP_VALUE(gdb_server_port), GET_PROP_VALUE(mhartid));
-    sc_assert(cpu->vm!=nullptr);
-    cpu->vm->setDisassEnabled(GET_PROP_VALUE(enable_disass) || trc->m_db != nullptr);
-    if (GET_PROP_VALUE(plugins).length()) {
-        auto p = util::split(GET_PROP_VALUE(plugins), ';');
-        for (std::string const& opt_val : p) {
-            std::string plugin_name=opt_val;
-            std::string filename{"cycles.txt"};
-            std::size_t found = opt_val.find('=');
-            if (found != std::string::npos) {
-                plugin_name = opt_val.substr(0, found);
-                filename = opt_val.substr(found + 1, opt_val.size());
-            }
-            if (plugin_name == "ic") {
-                auto *plugin = new iss::plugin::instruction_count(filename);
-                cpu->vm->register_plugin(*plugin);
-                plugin_list.push_back(plugin);
-            } else if (plugin_name == "ce") {
-                auto *plugin = new iss::plugin::cycle_estimate(filename);
-                cpu->vm->register_plugin(*plugin);
-                plugin_list.push_back(plugin);
-            } else if (plugin_name == "pctrace") {
-                auto *plugin = new iss::plugin::pctrace(filename);
-                cpu->vm->register_plugin(*plugin);
-                plugin_list.push_back(plugin);
-            } else {
-#ifndef WIN32
-                std::array<char const*, 1> a{{filename.c_str()}};
-                iss::plugin::loader l(plugin_name, {{"initPlugin"}});
-                auto* plugin = l.call_function<iss::vm_plugin*>("initPlugin", a.size(), a.data());
-                if(plugin){
-                    cpu->vm->register_plugin(*plugin);
-                    plugin_list.push_back(plugin);
-                } else
+using vm_ptr= std::unique_ptr<iss::vm_if>;
+vm_ptr create_cpu(core_wrapper* cpu, std::string const& backend, unsigned gdb_port){
+    if(backend == "interp")
+        return vm_ptr{iss::interp::create<core_type>(cpu, gdb_port)};
+#ifdef WITH_LLVM
+    if(backend == "llvm")
+        return vm_ptr{iss::llvm::create(lcpu, gdb_port)};
 #endif
-                    SCCERR(SCMOD) << "Unknown plugin '" << plugin_name << "' or plugin not found";
-            }
-        }
-    }
+    if(backend == "tcc")
+        return vm_ptr{iss::tcc::create<core_type>(cpu, gdb_port)};
+    return {nullptr};
+}
 
+void core_complex::before_end_of_elaboration() {
+    SCCDEBUG(SCMOD)<<"instantiating iss::arch::tgf with "<<backend.get_value()<<" backend";
+    cpu = scc::make_unique<core_wrapper>(this);
+    cpu->set_mhartid(mhartid.get_value());
+
+    vm = create_cpu(cpu.get(), backend.get_value(), gdb_server_port.get_value());
+#ifdef WITH_SCV
+    vm->setDisassEnabled(enable_disass.get_value() || m_db != nullptr);
+#else
+    vm->setDisassEnabled(enable_disass.get_value());
+#endif
+    auto *srv = debugger::server<debugger::gdb_session>::get();
+    if (srv) tgt_adapter = srv->get_target();
+    if (tgt_adapter)
+        tgt_adapter->add_custom_command(
+            {"sysc", [this](int argc, char *argv[], debugger::out_func of,
+                            debugger::data_func df) -> int { return cmd_sysc(argc, argv, of, df, tgt_adapter); },
+             "SystemC sub-commands: break <time>, print_time"});
 }
 
 void core_complex::start_of_simulation() {
     quantum_keeper.reset();
-    if (GET_PROP_VALUE(elf_file).size() > 0) {
-        istringstream is(GET_PROP_VALUE(elf_file));
+    if (elf_file.get_value().size() > 0) {
+        istringstream is(elf_file.get_value());
         string s;
         while (getline(is, s, ',')) {
             std::pair<uint64_t, bool> start_addr = cpu->load_file(s);
-#ifndef CWR_SYSTEMC
             if (reset_address.is_default_value() && start_addr.second == true)
                 reset_address.set_value(start_addr.first);
-#else
-            if (start_addr.second == true)
-                reset_address=start_addr.first;
-#endif
         }
     }
-    if (trc->m_db != nullptr && trc->stream_handle == nullptr) {
+#ifdef WITH_SCV
+    if (m_db != nullptr && stream_handle == nullptr) {
         string basename(this->name());
-        trc->stream_handle = new scv_tr_stream((basename + ".instr").c_str(), "TRANSACTOR", trc->m_db);
-        trc->instr_tr_handle = new scv_tr_generator<>("execute", *trc->stream_handle);
+        stream_handle = new scv_tr_stream((basename + ".instr").c_str(), "TRANSACTOR", m_db);
+        instr_tr_handle = new scv_tr_generator<>("execute", *stream_handle);
+        fetch_tr_handle = new scv_tr_generator<uint64_t>("fetch", *stream_handle);
     }
-}
-
-bool core_complex::disass_output(uint64_t pc, const std::string instr_str) {
-    if (trc->m_db == nullptr) return false;
-    if (trc->tr_handle.is_active()) trc->tr_handle.end_transaction();
-    trc->tr_handle = trc->instr_tr_handle->begin_transaction();
-    trc->tr_handle.record_attribute("PC", pc);
-    trc->tr_handle.record_attribute("INSTR", instr_str);
-    trc->tr_handle.record_attribute("MODE", lvl[cpu->get_mode()]);
-    trc->tr_handle.record_attribute("MSTATUS", cpu->get_state());
-    trc->tr_handle.record_attribute("LTIME_START", quantum_keeper.get_current_time().value() / 1000);
-    return true;
-}
-
-void core_complex::forward() {
-#ifndef CWR_SYSTEMC
-	set_clock_period(clk_i.read());
-#else
-	set_clock_period(curr_clk.read());
-
 #endif
 }
 
-void core_complex::set_clock_period(sc_core::sc_time period) {
-	curr_clk = period;
-    if (period == SC_ZERO_TIME) cpu->set_interrupt_execution(true);
+void core_complex::disass_output(uint64_t pc, const std::string instr_str) {
+#ifdef WITH_SCV
+    if (m_db == nullptr) return;
+    if (tr_handle.is_active()) tr_handle.end_transaction();
+    tr_handle = instr_tr_handle->begin_transaction();
+    tr_handle.record_attribute("PC", pc);
+    tr_handle.record_attribute("INSTR", instr_str);
+    tr_handle.record_attribute("MODE", lvl[cpu->get_mode()]);
+    tr_handle.record_attribute("MSTATUS", cpu->get_state().mstatus.backing.val);
+    tr_handle.record_attribute("LTIME_START", quantum_keeper.get_current_time().value() / 1000);
+#endif
+}
+
+void core_complex::clk_cb() {
+    curr_clk = clk_i.read();
+    if (curr_clk == SC_ZERO_TIME) cpu->set_interrupt_execution(true);
 }
 
 void core_complex::rst_cb() {
     if (rst_i.read()) cpu->set_interrupt_execution(true);
 }
 
-void core_complex::sw_irq_cb() { cpu->local_irq(3, sw_irq_i.read()); }
+void core_complex::sw_irq_cb() { cpu->local_irq(16, sw_irq_i.read()); }
 
-void core_complex::timer_irq_cb() { cpu->local_irq(7, timer_irq_i.read()); }
+void core_complex::timer_irq_cb() { cpu->local_irq(17, timer_irq_i.read()); }
 
-void core_complex::ext_irq_cb() { cpu->local_irq(11, ext_irq_i.read()); }
-
-void core_complex::local_irq_cb() {
-    for(auto i=0U; i<local_irq_i.size(); ++i) {
-        if(local_irq_i[i].event()) {
-            cpu->local_irq(16+i, local_irq_i[i].read());
-        }
-    }
-}
+void core_complex::global_irq_cb() { cpu->local_irq(18, global_irq_i.read()); }
 
 void core_complex::run() {
     wait(SC_ZERO_TIME); // separate from elaboration phase
     do {
         if (rst_i.read()) {
-            cpu->reset(GET_PROP_VALUE(reset_address));
+            cpu->reset(reset_address.get_value());
             wait(rst_i.negedge_event());
         }
-        while (curr_clk.read() == SC_ZERO_TIME) {
-            wait(curr_clk.value_changed_event());
+        while (clk_i.read() == SC_ZERO_TIME) {
+            wait(clk_i.value_changed_event());
         }
         cpu->set_interrupt_execution(false);
-        cpu->start();
+        vm->start();
     } while (cpu->get_interrupt_execution());
     sc_stop();
 }
@@ -528,14 +382,16 @@ bool core_complex::read_mem(uint64_t addr, unsigned length, uint8_t *const data,
         gp.set_data_ptr(data);
         gp.set_data_length(length);
         gp.set_streaming_width(length);
-        sc_time delay=quantum_keeper.get_local_time();
-        if (trc->m_db != nullptr && trc->tr_handle.is_valid()) {
-            if (is_fetch && trc->tr_handle.is_active()) {
-                trc->tr_handle.end_transaction();
+        sc_time delay{quantum_keeper.get_local_time()};
+#ifdef WITH_SCV
+        if (m_db != nullptr && tr_handle.is_valid()) {
+            if (is_fetch && tr_handle.is_active()) {
+                tr_handle.end_transaction();
             }
-            auto preExt = new tlm::scc::scv::tlm_recording_extension(trc->tr_handle, this);
+            auto preExt = new tlm::scc::scv4tlm::tlm_recording_extension(tr_handle, this);
             gp.set_extension(preExt);
         }
+#endif
         initiator->b_transport(gp, delay);
         SCCTRACE(this->name()) << "read_mem(0x" << std::hex << addr << ") : " << data;
         if (gp.get_response_status() != tlm::TLM_OK_RESPONSE) {
@@ -575,11 +431,13 @@ bool core_complex::write_mem(uint64_t addr, unsigned length, const uint8_t *cons
         gp.set_data_ptr(write_buf.data());
         gp.set_data_length(length);
         gp.set_streaming_width(length);
-        sc_time delay=quantum_keeper.get_local_time();
-        if (trc->m_db != nullptr && trc->tr_handle.is_valid()) {
-            auto preExt = new tlm::scc::scv::tlm_recording_extension(trc->tr_handle, this);
+        sc_time delay{quantum_keeper.get_local_time()};
+#ifdef WITH_SCV
+        if (m_db != nullptr && tr_handle.is_valid()) {
+            auto preExt = new tlm::scc::scv4tlm::tlm_recording_extension(tr_handle, this);
             gp.set_extension(preExt);
         }
+#endif
         initiator->b_transport(gp, delay);
         quantum_keeper.set(delay);
         SCCTRACE() << "write_mem(0x" << std::hex << addr << ") : " << data;
@@ -642,5 +500,6 @@ bool core_complex::write_mem_dbg(uint64_t addr, unsigned length, const uint8_t *
         return initiator->transport_dbg(gp) == length;
     }
 }
+
 } /* namespace SiFive */
 } /* namespace sysc */

src/vm/llvm/vm_tgf_c.cpp

@@ -30,7 +30,7 @@
  *
  *******************************************************************************/
 
-#include <iss/arch/tgc_c.h>
+#include <iss/arch/tgf_c.h>
 #include <iss/arch/riscv_hart_m_p.h>
 #include <iss/debugger/gdb_session.h>
 #include <iss/debugger/server.h>
@@ -52,7 +52,7 @@ namespace fp_impl {
 void add_fp_functions_2_module(::llvm::Module *, unsigned, unsigned);
 }
 
-namespace tgc_c {
+namespace tgf_c {
 using namespace ::llvm;
 using namespace iss::arch;
 using namespace iss::debugger;
@@ -4151,11 +4151,11 @@ template <typename ARCH> inline void vm_impl<ARCH>::gen_trap_check(BasicBlock *b
                           bb, this->trap_blk, 1);
 }
 
-} // namespace tgc_c
+} // namespace tgf_c
 
 template <>
-std::unique_ptr<vm_if> create<arch::tgc_c>(arch::tgc_c *core, unsigned short port, bool dump) {
-    auto ret = new tgc_c::vm_impl<arch::tgc_c>(*core, dump);
+std::unique_ptr<vm_if> create<arch::tgf_c>(arch::tgf_c *core, unsigned short port, bool dump) {
+    auto ret = new tgf_c::vm_impl<arch::tgf_c>(*core, dump);
     if (port != 0) debugger::server<debugger::gdb_session>::run_server(ret, port);
     return std::unique_ptr<vm_if>(ret);
 }

src/vm/tcc/vm_tgf_c.cpp

@@ -30,7 +30,7 @@
  *
  *******************************************************************************/
 
-#include <iss/arch/tgc_c.h>
+#include <iss/arch/tgf_c.h>
 #include <iss/arch/riscv_hart_m_p.h>
 #include <iss/debugger/gdb_session.h>
 #include <iss/debugger/server.h>
@@ -49,7 +49,7 @@
 
 namespace iss {
 namespace tcc {
-namespace tgc_c {
+namespace tgf_c {
 using namespace iss::arch;
 using namespace iss::debugger;
 
@@ -449,6 +449,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 2);
         gen_trap_check(tu);
@@ -486,6 +487,7 @@ private:
             new_pc_val,
             tu.l_not(tu.constant(0x1, 32U))), 32);
         tu.store(PC_val_v, traits<ARCH>::NEXT_PC);
+        tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32U), traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 3);
         gen_trap_check(tu);
@@ -526,6 +528,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 4);
         gen_trap_check(tu);
@@ -566,6 +569,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 5);
         gen_trap_check(tu);
@@ -610,6 +614,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 6);
         gen_trap_check(tu);
@@ -654,6 +659,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 7);
         gen_trap_check(tu);
@@ -694,6 +700,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 8);
         gen_trap_check(tu);
@@ -734,6 +741,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 9);
         gen_trap_check(tu);
@@ -1675,6 +1683,7 @@ private:
             tu.constant(1, 64U),
             tu.trunc(tu.constant(imm, 32U), 32));
         tu.close_scope();
+        tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32),traits<ARCH>::LAST_BRANCH);
         gen_set_pc(tu, pc, traits<ARCH>::NEXT_PC);
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 38);
         gen_trap_check(tu);
@@ -2553,6 +2562,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 65);
         gen_trap_check(tu);
@@ -2858,6 +2868,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 76);
         gen_trap_check(tu);
@@ -2897,6 +2908,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 77);
         gen_trap_check(tu);
@@ -2936,6 +2948,7 @@ private:
         auto is_cont_v = tu.choose(
             tu.icmp(ICmpInst::ICMP_NE, tu.ext(PC_val_v, 32U, true), tu.constant(pc.val, 32U)),
             tu.constant(0U, 32), tu.constant(1U, 32));
+        tu.store(is_cont_v, traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 78);
         gen_trap_check(tu);
@@ -3042,6 +3055,7 @@ private:
         tu.open_scope();
         auto PC_val_v = tu.assignment("PC_val", tu.load(rs1 + traits<ARCH>::X0, 0), 32);
         tu.store(PC_val_v, traits<ARCH>::NEXT_PC);
+        tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32U), traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 82);
         gen_trap_check(tu);
@@ -3094,6 +3108,7 @@ private:
             tu.constant(2, 32U)), 1 + traits<ARCH>::X0);
         auto PC_val_v = tu.assignment("PC_val", tu.load(rs1 + traits<ARCH>::X0, 0), 32);
         tu.store(PC_val_v, traits<ARCH>::NEXT_PC);
+        tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32U), traits<ARCH>::LAST_BRANCH);
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC, 84);
         gen_trap_check(tu);
@@ -3232,11 +3247,13 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt,
 
 template <typename ARCH> void vm_impl<ARCH>::gen_raise_trap(tu_builder& tu, uint16_t trap_id, uint16_t cause) {
     tu("  *trap_state = {:#x};", 0x80 << 24 | (cause << 16) | trap_id);
+    tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32),traits<ARCH>::LAST_BRANCH);
 }
 
 template <typename ARCH> void vm_impl<ARCH>::gen_leave_trap(tu_builder& tu, unsigned lvl) {
     tu("leave_trap(core_ptr, {});", lvl);
     tu.store(tu.read_mem(traits<ARCH>::CSR, (lvl << 8) + 0x41, traits<ARCH>::XLEN),traits<ARCH>::NEXT_PC);
+    tu.store(tu.constant(std::numeric_limits<uint32_t>::max(), 32),traits<ARCH>::LAST_BRANCH);
 }
 
 template <typename ARCH> void vm_impl<ARCH>::gen_wait(tu_builder& tu, unsigned type) {
@@ -3245,14 +3262,15 @@ template <typename ARCH> void vm_impl<ARCH>::gen_wait(tu_builder& tu, unsigned t
 template <typename ARCH> void vm_impl<ARCH>::gen_trap_behavior(tu_builder& tu) {
     tu("trap_entry:");
     tu("enter_trap(core_ptr, *trap_state, *pc);");
+    tu.store(tu.constant(std::numeric_limits<uint32_t>::max(),32),traits<ARCH>::LAST_BRANCH);
     tu("return *next_pc;");
 }
 
 } // namespace mnrv32
 
 template <>
-std::unique_ptr<vm_if> create<arch::tgc_c>(arch::tgc_c *core, unsigned short port, bool dump) {
-    auto ret = new tgc_c::vm_impl<arch::tgc_c>(*core, dump);
+std::unique_ptr<vm_if> create<arch::tgf_c>(arch::tgf_c *core, unsigned short port, bool dump) {
+    auto ret = new tgf_c::vm_impl<arch::tgf_c>(*core, dump);
     if (port != 0) debugger::server<debugger::gdb_session>::run_server(ret, port);
     return std::unique_ptr<vm_if>(ret);
 }