diff options
Diffstat (limited to 'src/arch/riscv/insts')
| -rw-r--r-- | src/arch/riscv/insts/SConscript | 1 | ||||
| -rw-r--r-- | src/arch/riscv/insts/bitfields.hh | 9 | ||||
| -rw-r--r-- | src/arch/riscv/insts/standard.cc | 67 | ||||
| -rw-r--r-- | src/arch/riscv/insts/standard.hh | 107 |
4 files changed, 184 insertions, 0 deletions
diff --git a/src/arch/riscv/insts/SConscript b/src/arch/riscv/insts/SConscript index 95e6afd61..fe9028029 100644 --- a/src/arch/riscv/insts/SConscript +++ b/src/arch/riscv/insts/SConscript @@ -1,4 +1,5 @@ Import('*') if env['TARGET_ISA'] == 'riscv': + Source('standard.cc') Source('static_inst.cc')
\ No newline at end of file diff --git a/src/arch/riscv/insts/bitfields.hh b/src/arch/riscv/insts/bitfields.hh new file mode 100644 index 000000000..45744e081 --- /dev/null +++ b/src/arch/riscv/insts/bitfields.hh @@ -0,0 +1,9 @@ +#ifndef __ARCH_RISCV_BITFIELDS_HH__ +#define __ARCH_RISCV_BITFIELDS_HH__ + +#include "base/bitfield.hh" + +#define CSRIMM bits(machInst, 19, 15) +#define FUNCT12 bits(machInst, 31, 20) + +#endif // __ARCH_RISCV_BITFIELDS_HH__
\ No newline at end of file diff --git a/src/arch/riscv/insts/standard.cc b/src/arch/riscv/insts/standard.cc new file mode 100644 index 000000000..bcf0741f9 --- /dev/null +++ b/src/arch/riscv/insts/standard.cc @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2015 RISC-V Foundation + * Copyright (c) 2017 The University of Virginia + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * 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; + * neither the name of the copyright holders 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 + * OWNER 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. + * + * Authors: Alec Roelke + */ + +#include "arch/riscv/insts/standard.hh" + +#include <sstream> +#include <string> + +#include "arch/riscv/insts/static_inst.hh" +#include "arch/riscv/utility.hh" +#include "cpu/static_inst.hh" + +using namespace std; + +namespace RiscvISA +{ + +string +RegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + ss << mnemonic << ' ' << registerName(_destRegIdx[0]) << ", " << + registerName(_srcRegIdx[0]) << ", " << + registerName(_srcRegIdx[1]); + return ss.str(); +} + +string +CSROp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + ss << mnemonic << ' ' << registerName(_destRegIdx[0]) << ", "; + if (_numSrcRegs > 0) + ss << registerName(_srcRegIdx[0]) << ", "; + ss << MiscRegNames.at(csr); + return ss.str(); +} + +}
\ No newline at end of file diff --git a/src/arch/riscv/insts/standard.hh b/src/arch/riscv/insts/standard.hh new file mode 100644 index 000000000..788bab240 --- /dev/null +++ b/src/arch/riscv/insts/standard.hh @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2015 RISC-V Foundation + * Copyright (c) 2017 The University of Virginia + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * 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; + * neither the name of the copyright holders 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 + * OWNER 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. + * + * Authors: Alec Roelke + */ + +#ifndef __ARCH_RISCV_STANDARD_INST_HH__ +#define __ARCH_RISCV_STANDARD_INST_HH__ + +#include <string> + +#include "arch/riscv/insts/bitfields.hh" +#include "arch/riscv/insts/static_inst.hh" +#include "cpu/exec_context.hh" +#include "cpu/static_inst.hh" + +namespace RiscvISA +{ + +/** + * Base class for operations that work only on registers + */ +class RegOp : public RiscvStaticInst +{ + protected: + using RiscvStaticInst::RiscvStaticInst; + + std::string generateDisassembly( + Addr pc, const SymbolTable *symtab) const override; +}; + +/** + * Base class for operations with immediates (I is the type of immediate) + */ +template<typename I> +class ImmOp : public RiscvStaticInst +{ + protected: + I imm; + + ImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) + : RiscvStaticInst(mnem, _machInst, __opClass), imm(0) + {} +}; + +/** + * Base class for system operations + */ +class SystemOp : public RiscvStaticInst +{ + protected: + using RiscvStaticInst::RiscvStaticInst; + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const override + { + return mnemonic; + } +}; + +/** + * Base class for CSR operations + */ +class CSROp : public RiscvStaticInst +{ + protected: + uint64_t csr; + uint64_t uimm; + + /// Constructor + CSROp(const char *mnem, MachInst _machInst, OpClass __opClass) + : RiscvStaticInst(mnem, _machInst, __opClass), + csr(FUNCT12), uimm(CSRIMM) + {} + + std::string generateDisassembly( + Addr pc, const SymbolTable *symtab) const override; +}; + +} + +#endif // __ARCH_RISCV_STANDARD_INST_HH__
\ No newline at end of file |