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Added RV32F extension, fixed RV32M bugs

This commit is contained in:
Eyck Jentzsch 2018-04-24 11:05:11 +02:00
parent bc7450dad2
commit 48ad30dcae
21 changed files with 8208 additions and 512 deletions
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10
.cproject
View File

@ -13,7 +13,7 @@
</extensions>
</storageModule>
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
<configuration artifactName="${ProjName}" buildArtefactType="org.eclipse.cdt.build.core.buildArtefactType.exe" buildProperties="org.eclipse.cdt.build.core.buildArtefactType=org.eclipse.cdt.build.core.buildArtefactType.exe,org.eclipse.cdt.build.core.buildType=org.eclipse.cdt.build.core.buildType.debug" cleanCommand="rm -rf" description="" id="cdt.managedbuild.config.gnu.exe.debug.1751741082" name="Debug" optionalBuildProperties="org.eclipse.cdt.docker.launcher.containerbuild.property.volumes=,org.eclipse.cdt.docker.launcher.containerbuild.property.selectedvolumes=" parent="cdt.managedbuild.config.gnu.exe.debug">
<configuration artifactName="${ProjName}" buildArtefactType="org.eclipse.cdt.build.core.buildArtefactType.exe" buildProperties="org.eclipse.cdt.build.core.buildArtefactType=org.eclipse.cdt.build.core.buildArtefactType.exe,org.eclipse.cdt.build.core.buildType=org.eclipse.cdt.build.core.buildType.debug" cleanCommand="rm -rf" description="" id="cdt.managedbuild.config.gnu.exe.debug.1751741082" name="Debug" optionalBuildProperties="org.eclipse.cdt.docker.launcher.containerbuild.property.selectedvolumes=,org.eclipse.cdt.docker.launcher.containerbuild.property.volumes=" parent="cdt.managedbuild.config.gnu.exe.debug">
<folderInfo id="cdt.managedbuild.config.gnu.exe.debug.1751741082." name="/" resourcePath="">
<toolChain id="cdt.managedbuild.toolchain.gnu.exe.debug.1289745146" name="Linux GCC" superClass="cdt.managedbuild.toolchain.gnu.exe.debug">
<targetPlatform binaryParser="org.eclipse.cdt.core.GNU_ELF;org.eclipse.cdt.core.ELF" id="cdt.managedbuild.target.gnu.platform.exe.debug.1460698591" name="Debug Platform" superClass="cdt.managedbuild.target.gnu.platform.exe.debug"/>
@ -46,6 +46,13 @@
<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
<storageModule buildDir="build/${ConfigName}" moduleId="de.marw.cdt.cmake.core.settings">
<options/>
<linux command="cmake" generator="UnixMakefiles" use-default="true">
<defs>
<def name="CMAKE_VERBOSE_MAKEFILE" type="BOOL" val="OFF"/>
</defs>
</linux>
<win32 command="cmake" generator="MinGWMakefiles" use-default="true">
</win32>
</storageModule>
</cconfiguration>
<cconfiguration id="cdt.managedbuild.config.gnu.exe.release.1745230171">
@ -177,4 +184,5 @@
</configuration>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
</cproject>

11
.settings/org.eclipse.cdt.core.prefs Normal file
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@ -0,0 +1,11 @@
eclipse.preferences.version=1
environment/project/cdt.managedbuild.config.gnu.exe.debug.1751741082/LLVM_HOME/delimiter=\:
environment/project/cdt.managedbuild.config.gnu.exe.debug.1751741082/LLVM_HOME/operation=replace
environment/project/cdt.managedbuild.config.gnu.exe.debug.1751741082/LLVM_HOME/value=/usr/lib/llvm-4.0
environment/project/cdt.managedbuild.config.gnu.exe.debug.1751741082/append=true
environment/project/cdt.managedbuild.config.gnu.exe.debug.1751741082/appendContributed=true
environment/project/cdt.managedbuild.config.gnu.exe.release.1745230171/LLVM_HOME/delimiter=\:
environment/project/cdt.managedbuild.config.gnu.exe.release.1745230171/LLVM_HOME/operation=append
environment/project/cdt.managedbuild.config.gnu.exe.release.1745230171/LLVM_HOME/value=/usr/lib/llvm-6.0
environment/project/cdt.managedbuild.config.gnu.exe.release.1745230171/append=true
environment/project/cdt.managedbuild.config.gnu.exe.release.1745230171/appendContributed=true

2
dbt-core

@ -1 +1 @@
Subproject commit bc05d40184ccb8871afa61620fe2c67ce2951fa4
Subproject commit d9512853b22e869938013c8dc0c6678a92d52c0e

6
etc/CoreDSL generator.launch
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@ -2,7 +2,7 @@
<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
<stringAttribute key="org.eclipse.debug.core.ATTR_REFRESH_SCOPE" value="${working_set:&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;&#10;&lt;resources&gt;&#10;&lt;item path=&quot;/dbt-riscv/riscv&quot; type=&quot;2&quot;/&gt;&#10;&lt;/resources&gt;}"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="/usr/lib/jvm/java-8-oracle/bin/java"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="-jar ${env_var:HOME}/git/JIT-ISS-CoreDsl/com.minres.coredsl.standalone/target/com.minres.coredsl.standalone-1.0.0-SNAPSHOT.jar&#10;-i=${project_loc:dbt-riscv}/riscv/incl/iss/arch&#10;-s=${project_loc:dbt-riscv}/riscv/src/iss&#10;-v=${project_loc:dbt-riscv}/riscv/src/internal&#10;-t=${project_loc:dbt-riscv}/riscv/gen_input/templates&#10;${project_loc:dbt-riscv}/riscv/gen_input/minres_rv.core_desc"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/dbt-riscv}/riscv/gen_input"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="/usr/bin/java"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="-Xmx1G -jar ${env_var:HOME}/git/JIT-ISS-CoreDsl/com.minres.coredsl.standalone/target/com.minres.coredsl.standalone-1.0.0-SNAPSHOT.jar&#10;-i=${project_loc:DBT-RISE-RISCV}/riscv/incl/iss/arch&#10;-s=${project_loc:DBT-RISE-RISCV}/riscv/src/iss&#10;-v=${project_loc:DBT-RISE-RISCV}/riscv/src/internal&#10;-t=${project_loc:DBT-RISE-RISCV}/riscv/gen_input/templates&#10;${project_loc:DBT-RISE-RISCV}/riscv/gen_input/minres_rv.core_desc"/>
<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/DBT-RISE-RISCV}/riscv/gen_input"/>
</launchConfiguration>

77
riscv/gen_input/RV32C.core_desc
View File

@ -1,6 +1,6 @@
import "RV32IBase.core_desc"
InsructionSet RV32CI {
InsructionSet RV32IC {
constants {
XLEN
}
@ -197,7 +197,64 @@ InsructionSet RV32CI {
}
}
InsructionSet RV32CF extends RV32CI {
InsructionSet RV32FC extends RV32IC{
constants {
XLEN, FLEN
}
address_spaces {
MEM[8]
}
registers {
[31:0] X[XLEN],
[31:0] F[FLEN]
}
instructions{
C.FLW {
encoding: b011 | uimm[5:3] | rs1[2:0] | uimm[2:2] | uimm[6:6] | rd[2:0] | b00;
args_disass:"f(8+%rd$d), %uimm%(x(8+%rs1$d))";
val rs1_idx[5] <= rs1+8;
val rd_idx[5] <= rd+8;
val offs[XLEN] <= X[rs1_idx]+uimm;
val res[32] <= MEM[offs]{32};
if(FLEN==32)
F[rd_idx] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd_idx] <= upper*2 | res;
}
}
C.FSW {
encoding: b111 | uimm[5:3] | rs1[2:0] | uimm[2:2] | uimm[6:6] | rs2[2:0] | b00;
args_disass:"f(8+%rs2$d), %uimm%(x(8+%rs1$d))";
val rs1_idx[5] <= rs1+8;
val rs2_idx[5] <= rs2+8;
val offs[XLEN] <= X[rs1_idx]+uimm;
MEM[offs]{32}<=F[rs2_idx]{32};
}
C.FLWSP {
encoding:b011 | uimm[5:5] | rd[4:0] | uimm[4:2] | uimm[7:6] | b10;
args_disass:"f%rd$d, %uimm%(x2)";
val x2_idx[5] <= 2;
val offs[XLEN] <= X[x2_idx]+uimm;
val res[32] <= MEM[offs]{32};
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
}
C.FSWSP {
encoding:b111 | uimm[5:2] | uimm[7:6] | rs2[4:0] | b10;
args_disass:"f%rs2$d, %uimm%(x2), ";
val x2_idx[5] <= 2;
val offs[XLEN] <= X[x2_idx]+uimm;
MEM[offs]{32}<=F[rs2];
}
}
}
InsructionSet RV32DC extends RV32IC{
constants {
XLEN, FLEN
}
@ -212,31 +269,19 @@ InsructionSet RV32CF extends RV32CI {
C.FLD { //(RV32/64)
encoding: b001 | uimm[5:3] | rs1[2:0] | uimm[7:6] | rd[2:0] | b00;
}
C.FLW {//(RV32)
encoding: b011 | uimm[5:3] | rs1[2:0] | uimm[2:2] | uimm[6:6] | rd[2:0] | b00;
}
C.FSD { //(RV32/64)
encoding: b101 | uimm[5:3] | rs1[2:0] | uimm[7:6] | rs2[2:0] | b00;
}
C.FSW {//(RV32)
encoding: b111 | uimm[5:3] | rs1[2:0] | uimm[2:2] | uimm[6:6] | rs2[2:0] | b00;
}
C.FLDSP {//(RV32/64)
encoding:b001 | uimm[5:5] | rd[4:0] | uimm[4:3] | uimm[8:6] | b10;
}
C.FLWSP {//RV32
encoding:b011 | uimm[5:5] | rd[4:0] | uimm[4:2] | uimm[7:6] | b10;
}
C.FSDSP {//(RV32/64)
encoding:b101 | uimm[5:3] | uimm[8:6] | rs2[4:0] | b10;
}
C.FSWSP {//(RV32)
encoding:b111 | uimm[5:2] | uimm[7:6] | rs2[4:0] | b10;
}
}
}
InsructionSet RV64CI extends RV32CI {
InsructionSet RV64IC extends RV32IC {
constants {
XLEN
}
@ -284,7 +329,7 @@ InsructionSet RV64CI extends RV32CI {
}
}
InsructionSet RV128CI extends RV64CI {
InsructionSet RV128IC extends RV64IC {
constants {
XLEN
}

231
riscv/gen_input/RV32F.core_desc
View File

@ -2,104 +2,293 @@ import "RV32IBase.core_desc"
InsructionSet RV32F extends RV32IBase{
constants {
FLEN, fcsr
FLEN, FFLAG_MASK
}
registers {
[31:0] F[FLEN]
[31:0] F[FLEN], FCSR[32]
}
instructions{
FLW {
encoding: imm[11:0]s | rs1[4:0] | b010 | rd[4:0] | b0000111;
args_disass:"f%rd$d, %imm%(x%rs1$d)";
val offs[XLEN] <= X[rs1]+imm;
F[rd]<=MEM[offs];
val res[32] <= MEM[offs]{32};
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
}
FSW {
encoding: imm[11:5]s | rs2[4:0] | rs1[4:0] | b010 | imm[4:0]s | b0100111;
args_disass:"f%rs2$d, %imm%(x%rs1$d)";
val offs[XLEN] <= X[rs1]+imm;
MEM[offs]<=F[rs2];
MEM[offs]{32}<=F[rs2]{32};
}
FMADD.S {
encoding: rs3[4:0] | b00 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1000011;
F[rd]f<= F[rs1]f * F[rs2]f * F[rs3]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<= F[rs1]f * F[rs2]f + F[rs3]f;
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(0, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMSUB.S {
encoding: rs3[4:0] | b00 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1000111;
F[rd]f<=F[rs1]f * F[rs2]f -F[rs3]f;
}
FNMSUB.S {
encoding: rs3[4:0] | b00 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1001011;
F[rd]f<=-F[rs1]f * F[rs2]f- F[rs3]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=F[rs1]f * F[rs2]f - F[rs3]f;
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(1, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FNMADD.S {
encoding: rs3[4:0] | b00 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1001111;
F[rd]f<=-F[rs1]f*F[rs2]f+F[rs3]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=-F[rs1]f * F[rs2]f + F[rs3]f;
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(2, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FNMSUB.S {
encoding: rs3[4:0] | b00 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1001011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=-F[rs1]f * F[rs2]f - F[rs3]f;
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(3, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FADD.S {
encoding: b0000000 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
F[rd]f <= F[rs1]f + F[rs2]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f + F[rs2]f;
val res[32] <= fdispatch_fadd_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSUB.S {
encoding: b0000100 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
F[rd]f <= F[rs1]f - F[rs2]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f - F[rs2]f;
val res[32] <= fdispatch_fsub_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMUL.S {
encoding: b0001000 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
F[rd]f <= F[rs1]f * F[rs2];
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f * F[rs2]f;
val res[32] <= fdispatch_fmul_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FDIV.S {
encoding: b0001100 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
F[rd]f <= F[rs1]f / F[rs2]f;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f / F[rs2]f;
val res[32] <= fdispatch_fdiv_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSQRT.S {
encoding: b0101100 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
F[rd]f<=sqrt(F[rs1]f);
args_disass:"x%rd$d, f%rs1$d";
//F[rd]f<=sqrt(F[rs1]f);
val res[32] <= fdispatch_fsqrt_s(F[rs1]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSGNJ.S {
encoding: b0010000 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[32] <= (F[rs1]{32} & 0x7fffffff) | (F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
}
FSGNJN.S {
encoding: b0010000 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[32] <= (F[rs1]{32} & 0x7fffffff) | (~F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
}
FSGNJX.S {
encoding: b0010000 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[32] <= F[rs1]{32} ^ (F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
}
FMIN.S {
encoding: b0010100 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
F[rd]f<= choose(F[rs1]f<F[rs2]f, F[rs1]f, F[rs2]f);
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
//F[rd]f<= choose(F[rs1]f<F[rs2]f, F[rs1]f, F[rs2]f);
val res[32] <= fdispatch_fsel_s(F[rs1]{32}, F[rs2]{32}, zext(0, 32));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMAX.S {
encoding: b0010100 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
F[rd]f<= choose(F[rs1]f>F[rs2]f, F[rs1]f, F[rs2]f);
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
//F[rd]f<= choose(F[rs1]f>F[rs2]f, F[rs1]f, F[rs2]f);
val res[32] <= fdispatch_fsel_s(F[rs1]{32}, F[rs2]{32}, zext(1, 32));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCVT.W.S {
encoding: b1100000 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<= sext(fdispatch_fcvt_s(F[rs1]{32}, zext(0, 32), rm{8}), XLEN);
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCVT.WU.S {
encoding: b1100000 | b00001 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
}
FMV.X.W {
encoding: b1110000 | b00000 | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<= zext(fdispatch_fcvt_s(F[rs1]{32}, zext(1, 32), rm{8}), XLEN);
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FEQ.S {
encoding: b1010000 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_s(F[rs1]{32}, F[rs2]{32}, zext(0, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FLT.S {
encoding: b1010000 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_s(F[rs1]{32}, F[rs2]{32}, zext(2, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FLE.S {
encoding: b1010000 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_s(F[rs1]{32}, F[rs2]{32}, zext(1, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCLASS.S {
encoding: b1110000 | b00000 | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<=fdispatch_fclass_s(F[rs1]{32});
}
FCVT.S.W {
encoding: b1101000 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, x%rs1$d";
val res[32] <= fdispatch_fcvt_s(X[rs1]{32}, zext(2, 32), rm{8});
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
}
FCVT.S.WU {
encoding: b1101000 | b00001 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, x%rs1$d";
val res[32] <=fdispatch_fcvt_s(X[rs1]{32}, zext(3,32), rm{8});
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
}
}
FMV.X.W {
encoding: b1110000 | b00000 | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<=sext(F[rs1]{32});
}
FMV.W.X {
encoding: b1111000 | b00000 | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"f%rd$d, x%rs1$d";
if(FLEN==32)
F[rd] <= X[rs1];
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | X[rs1];
}
}
}
}

28
riscv/gen_input/RV32M.core_desc
View File

@ -41,9 +41,17 @@ InsructionSet RV32M extends RV32IBase {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b100 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= sext(X[rs1], 32) / sext(X[rs2], 32);
else
if(X[rs2]!=0){
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd]<=MMIN;
else
X[rd] <= X[rs1]s / X[rs2]s;
else
X[rd] <= X[rs1]s / X[rs2]s;
}else
X[rd] <= -1;
}
}
@ -61,9 +69,17 @@ InsructionSet RV32M extends RV32IBase {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b110 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
else
if(X[rs2]!=0) {
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd] <= 0;
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
} else
X[rd] <= X[rs1];
}
}

22
riscv/gen_input/minres_rv.core_desc
View File

@ -2,12 +2,13 @@ import "RV32IBase.core_desc"
import "RV32M.core_desc"
import "RV32A.core_desc"
import "RV32C.core_desc"
import "RV32F.core_desc"
import "RV64IBase.core_desc"
//import "RV64M.core_desc"
import "RV64A.core_desc"
Core RV32IMAC provides RV32IBase, RV32M, RV32A, RV32CI {
Core RV32IMAC provides RV32IBase, RV32M, RV32A, RV32IC {
template:"vm_riscv.in.cpp";
constants {
XLEN:=32;
@ -25,6 +26,25 @@ Core RV32IMAC provides RV32IBase, RV32M, RV32A, RV32CI {
}
}
Core RV32GC provides RV32IBase, RV32M, RV32A, RV32IC, RV32F, RV32FC {
constants {
XLEN:=32;
FLEN:=32;
XLEN2:=64;
XLEN_BIT_MASK:=0x1f;
PCLEN:=32;
fence:=0;
fencei:=1;
fencevmal:=2;
fencevmau:=3;
// XL ZYXWVUTSRQPONMLKJIHGFEDCBA
MISA_VAL:=0b01000000000101000001000100000001;
PGSIZE := 4096; //1 << 12;
PGMASK := 4095; //PGSIZE-1
FFLAG_MASK:=0x1f;
}
}
Core RV64IA provides RV64IBase, RV64A, RV32A {
template:"vm_riscv.in.cpp";

15
riscv/gen_input/templates/incl-CORENAME.h.gtl
View File

@ -100,6 +100,8 @@ struct traits<${coreDef.name.toLowerCase()}> {
enum mem_type_e {${allSpaces.collect{s -> s.name}.join(', ')}};
constexpr static bool has_fp_regs = ${allRegs.find {it.name=='FCSR'}!= null ?'true':'false'};
};
struct ${coreDef.name.toLowerCase()}: public arch_if {
@ -112,8 +114,6 @@ struct ${coreDef.name.toLowerCase()}: public arch_if {
${coreDef.name.toLowerCase()}();
~${coreDef.name.toLowerCase()}();
const std::string core_type_name() const override {return traits<${coreDef.name.toLowerCase()}>::core_type;}
void reset(uint64_t address=0) override;
uint8_t* get_regs_base_ptr() override;
@ -159,8 +159,15 @@ protected:
std::array<address_type, 4> addr_mode;
uint64_t cycles = 0;
<%
def fcsr = allRegs.find {it.name=='FCSR'}
if(fcsr != null) {%>
uint${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){}
<%}%>
};
}

5
riscv/gen_input/templates/src-CORENAME.cpp.gtl
View File

@ -68,6 +68,7 @@ uint8_t* ${coreDef.name.toLowerCase()}::get_regs_base_ptr(){
return reinterpret_cast<uint8_t*>(&reg);
}
${coreDef.name.toLowerCase()}::phys_addr_t ${coreDef.name.toLowerCase()}::v2p(const iss::addr_t& pc) {
return phys_addr_t(pc); //change logical address to physical address
${coreDef.name.toLowerCase()}::phys_addr_t ${coreDef.name.toLowerCase()}::virt2phys(const iss::addr_t &pc) {
return phys_addr_t(pc); // change logical address to physical address
}

26
riscv/gen_input/templates/vm-vm_CORENAME.cpp.gtl
View File

@ -48,6 +48,12 @@
#include <array>
namespace iss {
namespace vm {
namespace fp_impl{
void add_fp_functions_2_module(llvm::Module *mod);
}
}
namespace ${coreDef.name.toLowerCase()} {
using namespace iss::arch;
using namespace llvm;
@ -81,6 +87,11 @@ protected:
return llvm::ConstantInt::get(getContext(), llvm::APInt(32, type->getType()->getScalarSizeInBits()));
}
void setup_module(llvm::Module* m) override {
super::setup_module(m);
vm::fp_impl::add_fp_functions_2_module(m);
}
inline llvm::Value *gen_choose(llvm::Value *cond, llvm::Value *trueVal, llvm::Value *falseVal,
unsigned size) const {
return super::gen_cond_assign(cond, this->gen_ext(trueVal, size), this->gen_ext(falseVal, size));
@ -106,6 +117,10 @@ protected:
return this->builder.CreateLoad(get_reg_ptr(i), false);
}
llvm::Value* gen_fdispatch(std::string fname, const std::vector<llvm::Value*>& args);
llvm::Value* gen_dispatch(std::string name, llvm::Value*, llvm::Value*, llvm::Value*);
inline void gen_set_pc(virt_addr_t pc, unsigned reg_num) {
llvm::Value *next_pc_v = this->builder.CreateSExtOrTrunc(this->gen_const(traits<ARCH>::XLEN, pc.val),
this->get_type(traits<ARCH>::XLEN));
@ -310,7 +325,16 @@ template <typename ARCH> inline void vm_impl<ARCH>::gen_trap_check(llvm::BasicBl
bb, this->trap_blk, 1);
}
} // namespace ${coreDef.name.toLowerCase()}
template<typename ARCH>
inline llvm::Value* vm_impl<ARCH>::gen_fdispatch(std::string fname, const std::vector<llvm::Value*>& args) {
return this->builder.CreateCall(this->mod->getFunction(fname), args);
}
template<typename ARCH>
inline llvm::Value* vm_impl<ARCH>::gen_dispatch(std::string name, llvm::Value* val1, llvm::Value* val2, llvm::Value* val3) {
}
} // namespace rv32imacf
template <>
std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreDef.name.toLowerCase()} *core, unsigned short port, bool dump) {

44
riscv/incl/iss/arch/riscv_hart_msu_vp.h
View File

@ -48,6 +48,7 @@
#include <util/sparse_array.h>
#include <util/bit_field.h>
#include <array>
#include <type_traits>
namespace iss {
namespace arch {
@ -537,6 +538,8 @@ private:
iss::status write_ip(unsigned addr, reg_t val);
iss::status read_satp(unsigned addr, reg_t &val);
iss::status write_satp(unsigned addr, reg_t val);
iss::status read_fcsr(unsigned addr, reg_t& val);
iss::status write_fcsr(unsigned addr, reg_t val);
protected:
void check_interrupt();
};
@ -579,6 +582,13 @@ riscv_hart_msu_vp<BASE>::riscv_hart_msu_vp()
csr_wr_cb[uie] = &riscv_hart_msu_vp<BASE>::write_ie;
csr_rd_cb[satp] = &riscv_hart_msu_vp<BASE>::read_satp;
csr_wr_cb[satp] = &riscv_hart_msu_vp<BASE>::write_satp;
csr_rd_cb[fcsr] = &riscv_hart_msu_vp<BASE>::read_fcsr;
csr_wr_cb[fcsr] = &riscv_hart_msu_vp<BASE>::write_fcsr;
csr_rd_cb[fflags] = &riscv_hart_msu_vp<BASE>::read_fcsr;
csr_wr_cb[fflags] = &riscv_hart_msu_vp<BASE>::write_fcsr;
csr_rd_cb[frm] = &riscv_hart_msu_vp<BASE>::read_fcsr;
csr_wr_cb[frm] = &riscv_hart_msu_vp<BASE>::write_fcsr;
}
template <typename BASE> std::pair<uint64_t,bool> riscv_hart_msu_vp<BASE>::load_file(std::string name, int type) {
@ -940,6 +950,39 @@ template <typename BASE> iss::status riscv_hart_msu_vp<BASE>::write_satp(unsigne
update_vm_info();
return iss::Ok;
}
template<typename BASE> iss::status riscv_hart_msu_vp<BASE>::read_fcsr(unsigned addr, reg_t& val) {
switch(addr){
case 1: //fflags, 4:0
val = bit_sub<0, 5>(this->get_fcsr());
break;
case 2: // frm, 7:5
val = bit_sub<5, 3>(this->get_fcsr());
break;
case 3: // fcsr
val=this->get_fcsr();
break;
default:
return iss::Err;
}
return iss::Ok;
}
template<typename BASE> iss::status riscv_hart_msu_vp<BASE>::write_fcsr(unsigned addr, reg_t val) {
switch(addr){
case 1: //fflags, 4:0
this->set_fcsr( (this->get_fcsr() & 0xffffffe0) | (val&0x1f));
break;
case 2: // frm, 7:5
this->set_fcsr( (this->get_fcsr() & 0xffffff1f) | ((val&0x7)<<5));
break;
case 3: // fcsr
this->set_fcsr(val&0xff);
break;
default:
return iss::Err;
}
return iss::Ok;
}
template <typename BASE>
iss::status riscv_hart_msu_vp<BASE>::read_mem(phys_addr_t paddr, unsigned length, uint8_t *const data) {
@ -1299,4 +1342,5 @@ template <typename BASE> void riscv_hart_msu_vp<BASE>::wait_until(uint64_t flags
}
}
#endif /* _RISCV_CORE_H_ */

278
riscv/incl/iss/arch/rv32gc.h Normal file
View File

@ -0,0 +1,278 @@
////////////////////////////////////////////////////////////////////////////////
// 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.
//
////////////////////////////////////////////////////////////////////////////////
#ifndef _RV32GC_H_
#define _RV32GC_H_
#include <iss/arch_if.h>
#include <iss/vm_if.h>
#include <iss/arch/traits.h>
#include <array>
namespace iss {
namespace arch {
struct rv32gc;
template<>
struct traits<rv32gc> {
constexpr static char const* const core_type = "RV32GC";
enum constants {XLEN=32, FLEN=32, XLEN2=64, XLEN_BIT_MASK=31, PCLEN=32, fence=0, fencei=1, fencevmal=2, fencevmau=3, MISA_VAL=1075056897, PGSIZE=4096, PGMASK=4095, FFLAG_MASK=31};
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,
F0,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
F11,
F12,
F13,
F14,
F15,
F16,
F17,
F18,
F19,
F20,
F21,
F22,
F23,
F24,
F25,
F26,
F27,
F28,
F29,
F30,
F31,
FCSR,
NUM_REGS,
NEXT_PC=NUM_REGS,
TRAP_STATE,
PENDING_TRAP,
MACHINE_STATE,
ICOUNT
};
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>;
constexpr static unsigned reg_bit_width(unsigned r) {
constexpr std::array<const uint32_t, 71> RV32GC_reg_size{{32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,64}};
return RV32GC_reg_size[r];
}
constexpr static unsigned reg_byte_offset(unsigned r) {
constexpr std::array<const uint32_t, 72> RV32GC_reg_byte_offset{{0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220,224,228,232,236,240,244,248,252,256,260,264,268,272,276,280,288}};
return RV32GC_reg_byte_offset[r];
}
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};
constexpr static bool has_fp_regs = true;
};
struct rv32gc: public arch_if {
using virt_addr_t = typename traits<rv32gc>::virt_addr_t;
using phys_addr_t = typename traits<rv32gc>::phys_addr_t;
using reg_t = typename traits<rv32gc>::reg_t;
using addr_t = typename traits<rv32gc>::addr_t;
rv32gc();
~rv32gc();
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 {};
uint64_t get_icount() { return reg.icount;}
inline phys_addr_t v2p(const iss::addr_t& addr){
if(addr.space != traits<rv32gc>::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<rv32gc>::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; }
protected:
struct RV32GC_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 F0 = 0;
uint32_t F1 = 0;
uint32_t F2 = 0;
uint32_t F3 = 0;
uint32_t F4 = 0;
uint32_t F5 = 0;
uint32_t F6 = 0;
uint32_t F7 = 0;
uint32_t F8 = 0;
uint32_t F9 = 0;
uint32_t F10 = 0;
uint32_t F11 = 0;
uint32_t F12 = 0;
uint32_t F13 = 0;
uint32_t F14 = 0;
uint32_t F15 = 0;
uint32_t F16 = 0;
uint32_t F17 = 0;
uint32_t F18 = 0;
uint32_t F19 = 0;
uint32_t F20 = 0;
uint32_t F21 = 0;
uint32_t F22 = 0;
uint32_t F23 = 0;
uint32_t F24 = 0;
uint32_t F25 = 0;
uint32_t F26 = 0;
uint32_t F27 = 0;
uint32_t F28 = 0;
uint32_t F29 = 0;
uint32_t F30 = 0;
uint32_t F31 = 0;
uint32_t FCSR = 0;
uint32_t NEXT_PC = 0;
uint32_t trap_state = 0, pending_trap = 0, machine_state = 0;
uint64_t icount = 0;
} reg;
std::array<address_type, 4> addr_mode;
uint32_t get_fcsr(){return reg.FCSR;}
void set_fcsr(uint32_t val){reg.FCSR = val;}
};
}
}
#endif /* _RV32GC_H_ */

6
riscv/incl/iss/arch/rv32imac.h
View File

@ -118,6 +118,8 @@ struct traits<rv32imac> {
enum mem_type_e {MEM, CSR, FENCE, RES};
constexpr static bool has_fp_regs = false;
};
struct rv32imac: public arch_if {
@ -199,6 +201,10 @@ protected:
std::array<address_type, 4> addr_mode;
uint32_t get_fcsr(){return 0;}
void set_fcsr(uint32_t val){}
};
}

6
riscv/incl/iss/arch/rv64ia.h
View File

@ -118,6 +118,8 @@ struct traits<rv64ia> {
enum mem_type_e {MEM, CSR, FENCE, RES};
constexpr static bool has_fp_regs = false;
};
struct rv64ia: public arch_if {
@ -199,6 +201,10 @@ protected:
std::array<address_type, 4> addr_mode;
uint32_t get_fcsr(){return 0;}
void set_fcsr(uint32_t val){}
};
}

290
riscv/src/internal/fp_functions.cpp Normal file
View File

@ -0,0 +1,290 @@
////////////////////////////////////////////////////////////////////////////////
// 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/iss.h>
#include <iss/vm_base.h>
extern "C" {
#include <softfloat.h>
#include "internals.h"
#include "specialize.h"
}
namespace iss {
namespace vm {
namespace fp_impl {
using namespace std;
#define INT_TYPE(L) Type::getIntNTy(mod->getContext(), L)
#define FLOAT_TYPE Type::getFloatTy(mod->getContext())
#define DOUBLE_TYPE Type::getDoubleTy(mod->getContext())
#define VOID_TYPE Type::getVoidTy(mod->getContext())
#define THIS_PTR_TYPE Type::getIntNPtrTy(mod->getContext(), 8)
#define FDECLL(NAME, RET, ...) \
Function *NAME##_func = CurrentModule->getFunction(#NAME); \
if (!NAME##_func) { \
std::vector<Type *> NAME##_args{__VA_ARGS__}; \
FunctionType *NAME##_type = FunctionType::get(RET, NAME##_args, false); \
NAME##_func = Function::Create(NAME##_type, GlobalValue::ExternalLinkage, #NAME, CurrentModule); \
NAME##_func->setCallingConv(CallingConv::C); \
}
#define FDECL(NAME, RET, ...) \
std::vector<Type *> NAME##_args{__VA_ARGS__}; \
FunctionType *NAME##_type = llvm::FunctionType::get(RET, NAME##_args, false); \
mod->getOrInsertFunction(#NAME, NAME##_type);
using namespace llvm;
void add_fp_functions_2_module(Module *mod) {
FDECL(fget_flags, INT_TYPE(32));
FDECL(fadd_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fsub_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fmul_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fdiv_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fsqrt_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fcmp_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32));
FDECL(fcvt_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fmadd_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
FDECL(fsel_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32));
FDECL(fclass_s, INT_TYPE(32), INT_TYPE(32));
}
}
}
}
using this_t = uint8_t *;
const uint8_t rmm_map[] = {
softfloat_round_near_even /*RNE*/,
softfloat_round_minMag/*RTZ*/,
softfloat_round_min/*RDN*/,
softfloat_round_max/*RUP?*/,
softfloat_round_near_maxMag /*RMM*/,
softfloat_round_max/*RTZ*/,
softfloat_round_max/*RTZ*/,
softfloat_round_max/*RTZ*/,
};
const uint32_t quiet_nan32=0x7fC00000;
extern "C" {
uint32_t fget_flags(){
return softfloat_exceptionFlags&0x1f;
}
uint32_t fadd_s(uint32_t v1, uint32_t v2, uint8_t mode) {
float32_t v1f{v1},v2f{v2};
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t r =f32_add(v1f, v2f);
return r.v;
}
uint32_t fsub_s(uint32_t v1, uint32_t v2, uint8_t mode) {
float32_t v1f{v1},v2f{v2};
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t r=f32_sub(v1f, v2f);
return r.v;
}
uint32_t fmul_s(uint32_t v1, uint32_t v2, uint8_t mode) {
float32_t v1f{v1},v2f{v2};
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t r=f32_mul(v1f, v2f);
return r.v;
}
uint32_t fdiv_s(uint32_t v1, uint32_t v2, uint8_t mode) {
float32_t v1f{v1},v2f{v2};
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t r=f32_div(v1f, v2f);
return r.v;
}
uint32_t fsqrt_s(uint32_t v1, uint8_t mode) {
float32_t v1f{v1};
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t r=f32_sqrt(v1f);
return r.v;
}
uint32_t fcmp_s(uint32_t v1, uint32_t v2, uint32_t op) {
float32_t v1f{v1},v2f{v2};
softfloat_exceptionFlags=0;
bool nan = (v1&defaultNaNF32UI)==quiet_nan32 || (v2&defaultNaNF32UI)==quiet_nan32;
bool snan = softfloat_isSigNaNF32UI(v1) || softfloat_isSigNaNF32UI(v2);
switch(op){
case 0:
if(nan | snan){
if(snan) softfloat_raiseFlags(softfloat_flag_invalid);
return 0;
} else
return f32_eq(v1f,v2f )?1:0;
case 1:
if(nan | snan){
softfloat_raiseFlags(softfloat_flag_invalid);
return 0;
} else
return f32_le(v1f,v2f )?1:0;
case 2:
if(nan | snan){
softfloat_raiseFlags(softfloat_flag_invalid);
return 0;
} else
return f32_lt(v1f,v2f )?1:0;
default:
break;
}
return -1;
}
uint32_t fcvt_s(uint32_t v1, uint32_t op, uint8_t mode) {
float32_t v1f{v1};
softfloat_exceptionFlags=0;
float32_t r;
int32_t res;
switch(op){
case 0: //w->s, fp to int32
res = f32_to_i32(v1f,rmm_map[mode&0x7],true);
return (uint32_t)res;
case 1: //wu->s
return f32_to_ui32(v1f,rmm_map[mode&0x7],true);
case 2: //s->w
r=i32_to_f32(v1);
return r.v;
case 3: //s->wu
r=ui32_to_f32(v1);
return r.v;
}
return 0;
}
uint32_t fmadd_s(uint32_t v1, uint32_t v2, uint32_t v3, uint32_t op, uint8_t mode) {
// op should be {softfloat_mulAdd_subProd(2), softfloat_mulAdd_subC(1)}
softfloat_roundingMode=rmm_map[mode&0x7];
softfloat_exceptionFlags=0;
float32_t res = softfloat_mulAddF32(v1, v2, v3, op&0x1);
if(op>1) res.v ^= 0x80000000UL;
return res.v;
}
uint32_t fsel_s(uint32_t v1, uint32_t v2, uint32_t op) {
softfloat_exceptionFlags = 0;
bool v1_nan = (v1 & defaultNaNF32UI) == quiet_nan32;
bool v2_nan = (v2 & defaultNaNF32UI) == quiet_nan32;
bool v1_snan = softfloat_isSigNaNF32UI(v1);
bool v2_snan = softfloat_isSigNaNF32UI(v2);
if (v1_snan || v2_snan) softfloat_raiseFlags(softfloat_flag_invalid);
if (v1_nan || v1_snan)
return (v2_nan || v2_snan) ? defaultNaNF32UI : v2;
else
if (v2_nan || v2_snan)
return v1;
else {
if ((v1 & 0x7fffffff) == 0 && (v2 & 0x7fffffff) == 0) {
return op == 0 ? ((v1 & 0x80000000) ? v1 : v2) : ((v1 & 0x80000000) ? v2 : v1);
} else {
float32_t v1f{ v1 }, v2f{ v2 };
return op == 0 ? (f32_lt(v1f, v2f) ? v1 : v2) : (f32_lt(v1f, v2f) ? v2 : v1);
}
}
}
uint32_t fclass_s( uint32_t v1 ){
float32_t a{v1};
union ui32_f32 uA;
uint_fast32_t uiA;
uA.f = a;
uiA = uA.ui;
uint_fast16_t infOrNaN = expF32UI( uiA ) == 0xFF;
uint_fast16_t subnormalOrZero = expF32UI( uiA ) == 0;
bool sign = signF32UI( uiA );
bool fracZero = fracF32UI( uiA ) == 0;
bool isNaN = isNaNF32UI( uiA );
bool isSNaN = softfloat_isSigNaNF32UI( uiA );
return
( sign && infOrNaN && fracZero ) << 0 |
( sign && !infOrNaN && !subnormalOrZero ) << 1 |
( sign && subnormalOrZero && !fracZero ) << 2 |
( sign && subnormalOrZero && fracZero ) << 3 |
( !sign && infOrNaN && fracZero ) << 7 |
( !sign && !infOrNaN && !subnormalOrZero ) << 6 |
( !sign && subnormalOrZero && !fracZero ) << 5 |
( !sign && subnormalOrZero && fracZero ) << 4 |
( isNaN && isSNaN ) << 8 |
( isNaN && !isSNaN ) << 9;
}
uint64_t fclass_d(uint64_t v1 ){
float64_t a{v1};
union ui64_f64 uA;
uint_fast64_t uiA;
uA.f = a;
uiA = uA.ui;
uint_fast16_t infOrNaN = expF64UI( uiA ) == 0x7FF;
uint_fast16_t subnormalOrZero = expF64UI( uiA ) == 0;
bool sign = signF64UI( uiA );
bool fracZero = fracF64UI( uiA ) == 0;
bool isNaN = isNaNF64UI( uiA );
bool isSNaN = softfloat_isSigNaNF64UI( uiA );
return
( sign && infOrNaN && fracZero ) << 0 |
( sign && !infOrNaN && !subnormalOrZero ) << 1 |
( sign && subnormalOrZero && !fracZero ) << 2 |
( sign && subnormalOrZero && fracZero ) << 3 |
( !sign && infOrNaN && fracZero ) << 7 |
( !sign && !infOrNaN && !subnormalOrZero ) << 6 |
( !sign && subnormalOrZero && !fracZero ) << 5 |
( !sign && subnormalOrZero && fracZero ) << 4 |
( isNaN && isSNaN ) << 8 |
( isNaN && !isSNaN ) << 9;
}
}

6524
riscv/src/internal/vm_rv32gc.cpp Normal file
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File diff suppressed because it is too large Load Diff

608
riscv/src/internal/vm_rv32imac.cpp
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File diff suppressed because it is too large Load Diff

444
riscv/src/internal/vm_rv64ia.cpp
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File diff suppressed because it is too large Load Diff

74
riscv/src/iss/rv32gc.cpp Normal file
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@ -0,0 +1,74 @@
////////////////////////////////////////////////////////////////////////////////
// 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.
//
////////////////////////////////////////////////////////////////////////////////
#include "util/ities.h"
#include <util/logging.h>
#include <elfio/elfio.hpp>
#include <iss/arch/rv32gc.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <ihex.h>
#ifdef __cplusplus
}
#endif
#include <fstream>
#include <cstdio>
#include <cstring>
using namespace iss::arch;
rv32gc::rv32gc() {
reg.icount=0;
}
rv32gc::~rv32gc(){
}
void rv32gc::reset(uint64_t address) {
for(size_t i=0; i<traits<rv32gc>::NUM_REGS; ++i) set_reg(i, std::vector<uint8_t>(sizeof(traits<rv32gc>::reg_t),0));
reg.PC=address;
reg.NEXT_PC=reg.PC;
reg.trap_state=0;
reg.machine_state=0x0;
}
uint8_t* rv32gc::get_regs_base_ptr(){
return reinterpret_cast<uint8_t*>(&reg);
}
rv32gc::phys_addr_t rv32gc::virt2phys(const iss::addr_t &pc) {
return phys_addr_t(pc); // change logical address to physical address
}

11
riscv/src/main.cpp
View File

@ -39,6 +39,7 @@
#include <boost/program_options.hpp>
#include <iss/arch/riscv_hart_msu_vp.h>
#include <iss/arch/rv32imac.h>
#include <iss/arch/rv32gc.h>
#include <iss/arch/rv64ia.h>
#include <iss/jit/MCJIThelper.h>
#include <iss/log_categories.h>
@ -103,15 +104,19 @@ int main(int argc, char *argv[]) {
// instantiate the simulator
std::unique_ptr<iss::vm_if> vm{nullptr};
std::string isa_opt(clim["isa"].as<std::string>());
iss::plugin::instruction_count ic_plugin("riscv/gen_input/src-gen/rv32imac_cyles.txt");
iss::plugin::cycle_estimate ce_plugin("riscv/gen_input/src-gen/rv32imac_cyles.txt");
// iss::plugin::instruction_count ic_plugin("riscv/gen_input/src-gen/rv32imac_cyles.txt");
// iss::plugin::cycle_estimate ce_plugin("riscv/gen_input/src-gen/rv32imac_cyles.txt");
if (isa_opt.substr(0, 4)=="rv64") {
iss::arch::rv64ia* cpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv64ia>();
vm = iss::create(cpu, clim["gdb-port"].as<unsigned>());
} else if (isa_opt.substr(0, 4)=="rv32") {
} else if (isa_opt.substr(0, 5)=="rv32i") {
iss::arch::rv32imac* cpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv32imac>();
vm = iss::create(cpu, clim["gdb-port"].as<unsigned>());
//vm->register_plugin(ce_plugin);
} else if (isa_opt.substr(0, 5)=="rv32g") {
iss::arch::rv32gc* cpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv32gc>();
vm = iss::create(cpu, clim["gdb-port"].as<unsigned>());
//vm->register_plugin(ce_plugin);
} else {
LOG(ERROR) << "Illegal argument value for '--isa': " << clim["isa"].as<std::string>() << std::endl;
return 127;