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1. Add rvSelect for rv32 and rv64. 2. Add rvZext and rvSext for rv32 handle sign extension 3. Fork the following instructions into rv32/rv64 version A extensions: SC.W LR.D SC.D AMOADD.D AMOSWAP.D AMOXOR.D AMOOR.D AMOAND.D AMOMIN.D AMOMAX.D AMOMINU.D AMOMAXU.D C extensions: C.ADDI4SPN C.FLD C.LW C.FLW C.LD C.FSD C.SW C.FSW C.SD C.ADDI C.JAL C.ADDIW C.ADDI16SP C.SRLI C.SRAI C.ANDI C.SUB C.XOR C.OR C.AND C.SUBW C.ADDW C.J C.BEQZ C.BNEZ C.SLLI C.FLDSP C.LWSP C.FLWSP C.LDSP C.JR C.MV C.EBREAK C.JALR C.ADD C.FSDSP C.SWSP C.FSWSP C.SDSPF D extensions: FCVT.L.D FCVT.LU.D FCVT.D.L FCVT.D.LU FMV.X.D FCLASS.D FMV.D.X F extensions: FSW FCVT.L.S FCVT.LU.S FCVT.S.W FCVT.S.WU FCVT.S.L FCVT.S.LU FMV.X.W FCLASS.S FMV.W.X I extensions: LD LWU SLLI ADDI SLTI SLTIU XORI SRLI SRAI ORI ANDI AUIPC ADDIW SLLIW SRLIW SRAIW SD ADD SUB SLL SLT SLTU XOR SRL SRA OR AND LUI BEQ BNE BLT BGE BLTU BGEU JALR JAL ADDW SUBW SLLW SRLW SRAW M extensions: MUL MULH MULHSU MULHU DIV DIVU REM REMU MULW DIVW DIVUW REMW REMUW ZFH extensions: FSH FCVT.L.H FCVT.LU.H FCVT.H.L FCVT.H.LU Change-Id: I8604324eadb700591db028aa3b013b060ba37de5 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65111 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of these tools. Once you have all dependencies resolved, type 'scons build/<CONFIG>/gem5.opt' where CONFIG is one of the options in build_opts like ARM, NULL, MIPS, POWER, SPARC, X86, Garnet_standalone, etc. This will build an optimized version of the gem5 binary (gem5.opt) with the the specified configuration. See http://www.gem5.org/documentation/general_docs/building for more details and options. The main source tree includes these subdirectories: - build_opts: pre-made default configurations for gem5 - build_tools: tools used internally by gem5's build process. - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - include: include files for use in other programs - site_scons: modular components of the build system - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you may need compiled system firmware, kernel binaries and one or more disk images, depending on gem5's configuration and what type of workload you're trying to run. Many of those resources can be downloaded from http://resources.gem5.org, and/or from the git repository here: https://gem5.googlesource.com/public/gem5-resources/ If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.