diff --git a/.cproject b/.cproject
index 1cb85cc..481c19d 100644
--- a/.cproject
+++ b/.cproject
@@ -16,7 +16,7 @@
 					<folderInfo id="cdt.managedbuild.toolchain.gnu.base.1336041151.1615713914" name="/" resourcePath="">
 						<toolChain id="cdt.managedbuild.toolchain.gnu.base.1297474963" name="Linux GCC" superClass="cdt.managedbuild.toolchain.gnu.base">
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.GNU_ELF" id="cdt.managedbuild.target.gnu.platform.base.1141103737" name="Debug Platform" osList="linux,hpux,aix,qnx" superClass="cdt.managedbuild.target.gnu.platform.base"/>
-							<builder buildPath="/TGFS-ISS/build/Debug" id="de.marw.cdt.cmake.core.genscriptbuilder.1100382234" parallelBuildOn="false" superClass="de.marw.cdt.cmake.core.genscriptbuilder"/>
+							<builder buildPath="/TGC-ISS/build/Debug" id="de.marw.cdt.cmake.core.genscriptbuilder.1100382234" keepEnvironmentInBuildfile="false" name="CMake Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="de.marw.cdt.cmake.core.genscriptbuilder"/>
 							<tool id="cdt.managedbuild.tool.gnu.archiver.base.740869785" name="GCC Archiver" superClass="cdt.managedbuild.tool.gnu.archiver.base"/>
 							<tool id="cdt.managedbuild.tool.gnu.cpp.compiler.base.1934077203" name="GCC C++ Compiler" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.base">
 								<inputType id="cdt.managedbuild.tool.gnu.cpp.compiler.input.17118862" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.input"/>
@@ -41,21 +41,23 @@
 			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
 			<storageModule buildDir="build/${ConfigName}" moduleId="de.marw.cdt.cmake.core.settings">
 				<options/>
-				<defs/>
-				<undefs/>
+				<defs>
+					<def name="ENABLE_CODEGEN" type="BOOL" val="ON"/>
+					<def name="CMAKE_BUILD_TYPE" type="STRING" val="${ConfigName}"/>
+				</defs>
 			</storageModule>
 		</cconfiguration>
 	</storageModule>
 	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-		<project id="TGFS-ISS.null.449389099" name="TGFS-ISS"/>
+		<project id="TGC-ISS.null.449389099" name="TGC-ISS"/>
 	</storageModule>
 	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
 	<storageModule moduleId="refreshScope" versionNumber="2">
 		<configuration configurationName="Default">
-			<resource resourceType="PROJECT" workspacePath="/TGFS-ISS"/>
+			<resource resourceType="PROJECT" workspacePath="/TGC-ISS"/>
 		</configuration>
 		<configuration configurationName="Debug">
-			<resource resourceType="PROJECT" workspacePath="/TGFS-ISS"/>
+			<resource resourceType="PROJECT" workspacePath="/TGC-ISS"/>
 		</configuration>
 	</storageModule>
 	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
diff --git a/.gitmodules b/.gitmodules
index 587d5d6..f533ef3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "dbt-core"]
 	path = dbt-core
 	url = https://git.minres.com/DBT-RISE/DBT-RISE-Core.git
+[submodule "coredsl"]
+	path = coredsl
+	url = https://git.minres.com/DBT-RISE/CoreDSL.git
diff --git a/.project b/.project
index bccc870..f624507 100644
--- a/.project
+++ b/.project
@@ -1,10 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>TGFS-ISS</name>
+	<name>TGC-ISS</name>
 	<comment></comment>
 	<projects>
 	</projects>
 	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.xtext.ui.shared.xtextBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 		<buildCommand>
 			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
 			<triggers>clean,full,incremental,</triggers>
@@ -23,5 +28,6 @@
 		<nature>org.eclipse.cdt.core.ccnature</nature>
 		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
 		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+		<nature>org.eclipse.xtext.ui.shared.xtextNature</nature>
 	</natures>
 </projectDescription>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 79d8ceb..cad36af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,12 +1,12 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.16)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_CURRENT_SOURCE_DIR}/scc/cmake)
 
 project(TGFS-ISS VERSION 1.0.0 LANGUAGES CXX)
 
+set(CORE_NAME TGC_C CACHE STRING "The core to build the ISS for" )
 set(WITH_LLVM FALSE CACHE BOOL "Build LLVM based backend")
 
 include(GNUInstallDirs)
-include(Conan)
 
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -32,7 +32,60 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
     set(warnings "/W4 /WX /EHsc")
 endif()
 
-setup_conan(TARGETS)
+include(ConanInline)
+
+set(CONAN_BOOST_OPTIONS
+boost:fPIC=True
+boost:shared=True
+boost:header_only=False 
+boost:without_context=True
+boost:without_contract=True
+boost:without_coroutine=True
+boost:without_fiber=True
+boost:without_graph=True
+boost:without_graph_parallel=True
+boost:without_iostreams=True
+boost:without_json=True
+boost:without_locale=True
+boost:without_log=True
+boost:without_math=True
+boost:without_mpi=True
+boost:without_nowide=True
+boost:without_python=True
+boost:without_random=True
+boost:without_regex=True
+boost:without_serialization=True
+boost:without_stacktrace=True
+boost:without_test=True
+boost:without_timer=True
+boost:without_type_erasure=True
+boost:without_wave=True
+)
+set(CONAN_PACKAGES fmt/6.1.2 zlib/1.2.11 boost/1.75.0 gsl-lite/0.37.0 elfio/3.8 tcc/0.9.27)
+set(CONAN_SETTINGS fmt:header_only=True ${CONAN_BOOST_OPTIONS})
+if(NOT DEFINED ENV{SYSTEMC_HOME})
+    set(CONAN_PACKAGES ${CONAN_PACKAGES}
+        systemc/2.3.3
+        systemc-cci/1.0.0
+        )
+    set(CONAN_SETTINGS ${CONAN_SETTINGS}  
+        #systemc:phase_cb=False
+        systemc-cci:shared=False
+        )
+endif()
+
+conan_check()
+conan_add_remote(NAME minres URL https://artifactory.minres.com/artifactory/api/conan/oss)
+conan_cmake_configure(REQUIRES ${CONAN_PACKAGES}
+                GENERATORS cmake_find_package
+                OPTIONS ${CONAN_SETTINGS}
+                )
+conan_install()
+
+find_package(tcc)
+find_package(elfio)
+find_package(fmt)
+find_package(gsl-lite)
 
 # This line finds the boost lib and headers. 
 set(Boost_NO_BOOST_CMAKE ON) #  Don't do a find_package in config mode before searching for a regular boost install.
@@ -54,7 +107,11 @@ if (ENABLE_CLANG_TIDY)
         set(CMAKE_CXX_CLANG_TIDY "" CACHE STRING "" FORCE) # delete it
     endif()
 endif()
-  
+
+include(CodeGen)
+gen_coredsl(${CORE_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/tgfs/gen_input/${CORE_NAME}.core_desc interp)
+
 add_subdirectory(dbt-core)
 add_subdirectory(scc)
 add_subdirectory(tgfs)
+
diff --git a/Modulefile b/Modulefile
new file mode 100644
index 0000000..f4576a5
--- /dev/null
+++ b/Modulefile
@@ -0,0 +1,33 @@
+#%Module######################################################################
+##
+##      Project Module
+##
+proc ModulesHelp { } {
+  puts stderr "\tThe TGFS-ISS Project Module\n"
+  puts stderr "\tThis module loads PATHs and variables for accessing Verilator."
+}
+
+
+set distro [exec /bin/lsb_release -i -s]
+if { $distro == "CentOS" && ![info exists ::env(PROJECT)] && ![info exists ::env(PCP_DIR)] } {
+    puts stderr     "Don't forget to execute 'scl enable devtoolset-7 bash'"
+}
+
+if {![info exists ::env(PROJECT)] && [file exists $::env(HOME)/.sdkman/candidates/java/11.0.9.hs-adpt/] != 1} { 
+    puts stderr "Please install java via 'sdk install java 11.0.9.hs-adpt'!"
+    prereq java/11.0.9
+} else {
+    prepend-path PATH $::env(HOME)/.sdkman/candidates/java/11.0.9.hs-adpt/bin
+}
+
+if {![info exists ::env(PROJECT)] && [file exists $::env(HOME)/.sdkman/candidates/maven/3.6.3] != 1} { 
+    puts stderr "Please install mvn via 'sdk install maven 3.6.3'!"
+    prereq maven/3.6.3
+} else {
+    prepend-path PATH $::env(HOME)/.sdkman/candidates/sbt/1.4.4/bin
+}
+
+module load tools/cmake  tools/gcc-riscv64/9.2.0
+
+setenv PROJECT TGFS-ISS
+
diff --git a/cmake/CodeGen.cmake b/cmake/CodeGen.cmake
new file mode 100644
index 0000000..920e30e
--- /dev/null
+++ b/cmake/CodeGen.cmake
@@ -0,0 +1,113 @@
+cmake_minimum_required(VERSION 3.16)
+option(ENABLE_CODEGEN "Enable code generation for supported cores" ON)
+
+set(ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
+set(DBT_CORE_TGC_DIR ${ROOT_DIR}/tgfs)
+
+#helper to setup code generation and generate outputs
+set(GENERATOR_JAR ${ROOT_DIR}/coredsl/com.minres.coredsl.generator.repository/target/com.minres.coredsl.generator-2.0.0-SNAPSHOT.jar)
+
+if(EXISTS ${ROOT_DIR}/coredsl/pom.xml AND NOT EXISTS ${GENERATOR_JAR})
+    execute_process(
+   		COMMAND mvn package
+   		WORKING_DIRECTORY ${ROOT_DIR}/coredsl
+   		OUTPUT_VARIABLE StdOut
+   		ERROR_VARIABLE StdErr
+	    RESULT_VARIABLE Status
+	    ERROR_QUIET)
+    if(Status AND NOT Status EQUAL 0)
+        message(STATUS "mvn package call failed: ${Status}, ${StdOut}, ${StdErr}")
+    endif()
+endif()
+
+set(JAVA_OPTS --add-modules ALL-SYSTEM --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED
+  --add-opens=java.base/java.lang.annotation=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED 
+  --add-opens=java.base/java.lang.module=ALL-UNNAMED --add-opens=java.base/java.lang.ref=ALL-UNNAMED 
+  --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.math=ALL-UNNAMED 
+  --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.net.spi=ALL-UNNAMED 
+  --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.nio.channels=ALL-UNNAMED 
+  --add-opens=java.base/java.nio.channels.spi=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED 
+  --add-opens=java.base/java.nio.charset.spi=ALL-UNNAMED --add-opens=java.base/java.nio.file=ALL-UNNAMED 
+  --add-opens=java.base/java.nio.file.attribute=ALL-UNNAMED --add-opens=java.base/java.nio.file.spi=ALL-UNNAMED 
+  --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.security.acl=ALL-UNNAMED 
+  --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.security.interfaces=ALL-UNNAMED 
+  --add-opens=java.base/java.security.spec=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED 
+  --add-opens=java.base/java.text.spi=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED 
+  --add-opens=java.base/java.time.chrono=ALL-UNNAMED --add-opens=java.base/java.time.format=ALL-UNNAMED 
+  --add-opens=java.base/java.time.temporal=ALL-UNNAMED --add-opens=java.base/java.time.zone=ALL-UNNAMED 
+  --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED
+  --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED 
+  --add-opens=java.base/java.util.function=ALL-UNNAMED --add-opens=java.base/java.util.jar=ALL-UNNAMED 
+  --add-opens=java.base/java.util.regex=ALL-UNNAMED --add-opens=java.base/java.util.spi=ALL-UNNAMED 
+  --add-opens=java.base/java.util.stream=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED 
+  --add-opens=java.datatransfer/java.awt.datatransfer=ALL-UNNAMED --add-opens=java.desktop/java.applet=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.color=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.desktop=ALL-UNNAMED --add-opens=java.desktop/java.awt.dnd=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.dnd.peer=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.font=ALL-UNNAMED --add-opens=java.desktop/java.awt.geom=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.im=ALL-UNNAMED --add-opens=java.desktop/java.awt.im.spi=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.image=ALL-UNNAMED --add-opens=java.desktop/java.awt.image.renderable=ALL-UNNAMED 
+  --add-opens=java.desktop/java.awt.peer=ALL-UNNAMED --add-opens=java.desktop/java.awt.print=ALL-UNNAMED 
+  --add-opens=java.desktop/java.beans=ALL-UNNAMED --add-opens=java.desktop/java.beans.beancontext=ALL-UNNAMED 
+  --add-opens=java.instrument/java.lang.instrument=ALL-UNNAMED --add-opens=java.logging/java.util.logging=ALL-UNNAMED 
+  --add-opens=java.management/java.lang.management=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED 
+  --add-opens=java.rmi/java.rmi=ALL-UNNAMED --add-opens=java.rmi/java.rmi.activation=ALL-UNNAMED 
+  --add-opens=java.rmi/java.rmi.dgc=ALL-UNNAMED --add-opens=java.rmi/java.rmi.registry=ALL-UNNAMED 
+  --add-opens=java.rmi/java.rmi.server=ALL-UNNAMED --add-opens=java.sql/java.sql=ALL-UNNAMED)
+set(GENERATOR java ${JAVA_OPTS} -jar ${GENERATOR_JAR})
+
+set(INPUT_DIR ${DBT_CORE_TGC_DIR}/gen_input)
+set(REPO_DIR ${DBT_CORE_TGC_DIR}/gen_input/CoreDSL-Instruction-Set-Description)
+set(TMPL_DIR ${DBT_CORE_TGC_DIR}/gen_input/templates/)
+
+if(ENABLE_CODEGEN AND EXISTS ${GENERATOR_JAR})
+    	macro(gen_coredsl CORE_NAME INPUT_FILE BACKEND)
+            message(STATUS "Adding generation steps for ${CORE_NAME} in ${DBT_CORE_TGC_DIR} for ${BACKEND}")
+            
+    		string(TOUPPER ${BACKEND} BE_UPPER)
+    		string(TOLOWER ${CORE_NAME} CORE_NAMEL)
+
+            if(EXISTS ${DBT_CORE_TGC_DIR}/generate.sh AND NOT EXISTS ${DBT_CORE_TGC_DIR}/incl/iss/arch/${CORE_NAMEL}.h)
+                # make sure source file exist initially 
+                execute_process(
+                    COMMAND /bin/bash ${DBT_CORE_TGC_DIR}/../generate.sh -c $CORE_NAME -b $BACKEND
+                    WORKING_DIRECTORY ${DBT_CORE_TGC_DIR}/..
+                    RESULT_VARIABLE return_code)
+            endif()
+
+    		list(APPEND ${CORE_NAME}_MAPPING -m "${TMPL_DIR}/CORENAME.h.gtl:${DBT_CORE_TGC_DIR}/incl/iss/arch/${CORE_NAMEL}.h")
+    		list(APPEND ${CORE_NAME}_MAPPING -m "${TMPL_DIR}/CORENAME.cpp.gtl:${DBT_CORE_TGC_DIR}/src/iss/${CORE_NAMEL}.cpp")
+    		list(APPEND ${CORE_NAME}_MAPPING -m "${TMPL_DIR}/${BACKEND}/CORENAME.cpp.gtl:${DBT_CORE_TGC_DIR}/src/vm/interp/vm_${CORE_NAMEL}.cpp")
+    		list(APPEND ${CORE_NAME}_MAPPING -m "${TMPL_DIR}/CORENAME_instr.yaml.gtl:${DBT_CORE_TGC_DIR}/${CORE_NAME}_instr.yaml")
+    		
+    		set(${CORE_NAME}_OUTPUT_FILES ${DBT_CORE_TGC_DIR}/incl/iss/arch/${CORE_NAMEL}.h ${DBT_CORE_TGC_DIR}/src/iss/${CORE_NAMEL}.cpp ${DBT_CORE_TGC_DIR}/src/vm/interp/vm_${CORE_NAMEL}.cpp)
+    		#add_custom_command(
+    		#    COMMAND ${GENERATOR} -b ${BE_UPPER} -c ${CORE_NAME} -r ${REPO_DIR} ${${CORE_NAME}_MAPPING} ${INPUT_FILE}
+    		#    DEPENDS ${GENERATOR_JAR} ${INPUT_FILE} ${TMPL_DIR}/CORENAME.h.gtl ${TMPL_DIR}/CORENAME.cpp.gtl ${TMPL_DIR}/${BACKEND}/CORENAME.cpp.gtl
+    		#    OUTPUT ${${CORE_NAME}_OUTPUT_FILES}
+    		#    COMMENT "Generating code for ${CORE_NAME}."
+    		#    USES_TERMINAL VERBATIM
+    		#)    		
+    		if(NOT DEFINED ENV{CI})
+        		add_custom_target(${CORE_NAME}_cpp
+                    COMMAND ${GENERATOR} -b ${BE_UPPER} -c ${CORE_NAME} -r ${REPO_DIR} ${${CORE_NAME}_MAPPING} ${INPUT_FILE}
+                    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+                    COMMENT "Generating ISS sources"
+                    BYPRODUCTS ${${CORE_NAME}_OUTPUT_FILES}
+                    USES_TERMINAL
+                )
+            endif()
+            execute_process(
+                COMMAND ${GENERATOR} -b ${BE_UPPER} -c ${CORE_NAME} -r ${REPO_DIR} ${${CORE_NAME}_MAPPING} ${INPUT_FILE}
+                WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+                RESULT_VARIABLE return_code)
+    	endmacro()
+else()
+	macro(gen_coredsl CORE_NAME INPUT_FILE BACKEND)
+		add_custom_target(${CORE_NAME}_cpp)
+        message(STATUS "Not adding generation steps for ${CORE_NAME}(${ENABLE_CODEGEN}, ${GENERATOR_JAR})")
+        if(NOT EXISTS ${GENERATOR_JAR})
+            message(STATUS "CoreDSL Generator ${GENERATOR_JAR} does not exists")
+        endif()
+	endmacro()
+endif()
diff --git a/conanfile.txt b/conanfile.txt
deleted file mode 100644
index ba30cd2..0000000
--- a/conanfile.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-[requires]
-    gsl_microsoft/20180102@bincrafters/stable
-    fmt/6.1.2
-#    SystemC/2.3.3@minres/stable
-#    SystemCVerification/2.0.1@minres/stable
-#    SystemC-CCI/1.0.0@minres/stable
-    tcc/0.9.27@minres/stable
-    boost/1.71.0@conan/stable
-	zlib/1.2.11
-	elfio/3.4@minres/stable
-	
-[generators]
-    cmake
-
-[options]
-    seasocks:shared=True
-    boost:fPIC=True
-    boost:shared=False
-    boost:header_only=False
-    fmt:header_only=True
-#    SystemC:stdcxx=11
-#    SystemC:shared=True
-#    SystemCVerification:stdcxx=11
-#    SystemCVerification:shared=True
-#    SystemC-CCI:stdcxx=11
-#    SystemC-CCI:shared=True
diff --git a/coredsl b/coredsl
new file mode 160000
index 0000000..2258a1c
--- /dev/null
+++ b/coredsl
@@ -0,0 +1 @@
+Subproject commit 2258a1cb004ddaaa839978b7044963355ad83bfb
diff --git a/dbt-core b/dbt-core
index d87dfff..d64b198 160000
--- a/dbt-core
+++ b/dbt-core
@@ -1 +1 @@
-Subproject commit d87dfff430e9ff3d394327bbf649a9f1bb05e396
+Subproject commit d64b1986626fd927f0b2a5e787f8941d6dd6aecd
diff --git a/generate.sh b/generate.sh
new file mode 100644
index 0000000..5d7bacd
--- /dev/null
+++ b/generate.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+##
+
+# Absolute path to this script, e.g. /home/user/bin/foo.sh
+SCRIPT=`readlink -f "$0"`
+# Absolute path this script is in, thus /home/user/bin
+SCRIPTDIR=`dirname "$SCRIPT"`
+SCRIPTNAME=`basename "$SCRIPT"`
+
+function print_help {
+    echo "Usage: $SCRIPTNAME [-h] -c <core name> -v <core variant> <input file>"
+    echo "Generate ISS sources for TGC cores"
+    echo "  -c <name>       core name"
+    echo "  -b <backend>    ISS backend for which sources are generated, interp,tcc, or llvm"
+    exit 0
+}
+
+
+CORE_NAME=
+BACKEND=
+while getopts 'c:b:h' c
+do
+  case $c in
+    c) CORE_NAME=$OPTARG ;;
+    b) BACKEND=$OPTARG ;;
+    h) print_help ;;
+  esac
+done
+shift $((OPTIND-1))
+
+if [ -z "$CORE_NAME" ]; then
+    echo "core name missing!"
+    exit 1
+fi
+if [ -z "$BACKEND" ]; then
+    echo "core variant missing!"
+    exit 1
+fi
+
+
+JAVA_OPTS="--add-modules ALL-SYSTEM --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.annotation=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.lang.module=ALL-UNNAMED --add-opens=java.base/java.lang.ref=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.math=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.net.spi=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.nio.channels=ALL-UNNAMED --add-opens=java.base/java.nio.channels.spi=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.nio.charset.spi=ALL-UNNAMED --add-opens=java.base/java.nio.file=ALL-UNNAMED --add-opens=java.base/java.nio.file.attribute=ALL-UNNAMED --add-opens=java.base/java.nio.file.spi=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.security.acl=ALL-UNNAMED --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.security.interfaces=ALL-UNNAMED --add-opens=java.base/java.security.spec=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.text.spi=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED --add-opens=java.base/java.time.chrono=ALL-UNNAMED --add-opens=java.base/java.time.format=ALL-UNNAMED --add-opens=java.base/java.time.temporal=ALL-UNNAMED --add-opens=java.base/java.time.zone=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED --add-opens=java.base/java.util.function=ALL-UNNAMED --add-opens=java.base/java.util.jar=ALL-UNNAMED --add-opens=java.base/java.util.regex=ALL-UNNAMED --add-opens=java.base/java.util.spi=ALL-UNNAMED --add-opens=java.base/java.util.stream=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED --add-opens=java.datatransfer/java.awt.datatransfer=ALL-UNNAMED --add-opens=java.desktop/java.applet=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.color=ALL-UNNAMED --add-opens=java.desktop/java.awt.desktop=ALL-UNNAMED --add-opens=java.desktop/java.awt.dnd=ALL-UNNAMED --add-opens=java.desktop/java.awt.dnd.peer=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED --add-opens=java.desktop/java.awt.font=ALL-UNNAMED --add-opens=java.desktop/java.awt.geom=ALL-UNNAMED --add-opens=java.desktop/java.awt.im=ALL-UNNAMED --add-opens=java.desktop/java.awt.im.spi=ALL-UNNAMED --add-opens=java.desktop/java.awt.image=ALL-UNNAMED --add-opens=java.desktop/java.awt.image.renderable=ALL-UNNAMED --add-opens=java.desktop/java.awt.peer=ALL-UNNAMED --add-opens=java.desktop/java.awt.print=ALL-UNNAMED --add-opens=java.desktop/java.beans=ALL-UNNAMED --add-opens=java.desktop/java.beans.beancontext=ALL-UNNAMED --add-opens=java.instrument/java.lang.instrument=ALL-UNNAMED --add-opens=java.logging/java.util.logging=ALL-UNNAMED --add-opens=java.management/java.lang.management=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.rmi/java.rmi=ALL-UNNAMED --add-opens=java.rmi/java.rmi.activation=ALL-UNNAMED --add-opens=java.rmi/java.rmi.dgc=ALL-UNNAMED --add-opens=java.rmi/java.rmi.registry=ALL-UNNAMED --add-opens=java.rmi/java.rmi.server=ALL-UNNAMED --add-opens=java.sql/java.sql=ALL-UNNAMED"
+
+GENERATOR="java $JAVA_OPTS -jar coredsl/com.minres.coredsl.generator.repository/target/com.minres.coredsl.generator-2.0.0-SNAPSHOT.jar "
+
+INPUT_FILE=$1
+
+REPO_DIR=tgfs/gen_input/CoreDSL-Instruction-Set-Description 
+TMPL_DIR=tgfs/gen_input/templates
+CORE_NAME_LC=`echo "$CORE_NAME" | tr '[:upper:]' '[:lower:]'`
+
+MAPPING=""
+MAPPING="$MAPPING -m ${TMPL_DIR}/CORENAME.h.gtl:tgfs/incl/iss/arch/${CORE_NAME_LC}.h"
+MAPPING="$MAPPING -m ${TMPL_DIR}/CORENAME.cpp.gtl:tgfs/src/iss/${CORE_NAME_LC}.cpp"
+MAPPING="$MAPPING -m ${TMPL_DIR}/${BACKEND}/CORENAME.cpp.gtl:tgfs/src/vm/${BACKEND}/vm_${CORE_NAME_LC}.cpp"
+MAPPING="$MAPPING -m ${TMPL_DIR}/CORENAME_instr.yaml.gtl:tgfs/${CORE_NAME_LC}_instr.yaml"
+
+[ -f coredsl/com.minres.coredsl.generator.repository/target/com.minres.coredsl.generator-2.0.0-SNAPSHOT.jar ] || (cd coredsl; mvn package)
+
+$GENERATOR -c $CORE_NAME -r $REPO_DIR $MAPPING $INPUT_FILE
+
diff --git a/scc b/scc
index d0f2f55..7b2017a 160000
--- a/scc
+++ b/scc
@@ -1 +1 @@
-Subproject commit d0f2f5599787149be8dbd1e17f5aa6caaa2e3140
+Subproject commit 7b2017a21dec666b1fb14650b3147fa11208c886
diff --git a/tgfs b/tgfs
index d43b359..d5fa47e 160000
--- a/tgfs
+++ b/tgfs
@@ -1 +1 @@
-Subproject commit d43b35949e60c45e45ec43af1977478d0f93869d
+Subproject commit d5fa47ef7f9395ae202442535624d99b58e290be