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63 lines
1.6 KiB
63 lines
1.6 KiB
// See LICENSE for license details.
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// This little program finds occurrences of strings like
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// core 0: 0x000000008000c36c (0xfe843783) ld a5, -24(s0)
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// in its inputs, then output the RISC-V instruction with the disassembly
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// enclosed hexadecimal number.
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#include <iostream>
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#include <string>
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#include <cstdint>
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#include <regex>
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#include "fesvr/option_parser.h"
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#include "disasm.h"
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#include "extension.h"
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#include "platform.h"
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using namespace std;
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int main(int UNUSED argc, char** argv)
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{
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string s;
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const char* isa_string = DEFAULT_ISA;
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std::function<extension_t*()> extension;
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option_parser_t parser;
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parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
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parser.option(0, "isa", 1, [&](const char* s){isa_string = s;});
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parser.parse(argv);
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cfg_t cfg;
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isa_parser_t isa(isa_string, DEFAULT_PRIV);
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processor_t p(isa_string, DEFAULT_PRIV, &cfg, 0, 0, false, nullptr, cerr);
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if (extension) {
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p.register_extension(extension());
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}
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std::regex reg("^core\\s+\\d+:\\s+0x[0-9a-f]+\\s+\\(0x([0-9a-f]+)\\)", std::regex_constants::icase);
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std::smatch m;
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while (getline(cin,s)){
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if (regex_search(s, m, reg)){
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// the opcode string
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string op = m[1].str();
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uint32_t bit_num = op.size() * 4;
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uint64_t opcode = strtoull(op.c_str(), nullptr, 16);
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if (bit_num<64){
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opcode = opcode << (64-bit_num) >> (64-bit_num);
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}
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const disasm_insn_t* disasm = p.get_disassembler()->lookup(opcode);
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if (disasm) {
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cout << disasm->get_name() << '\n';
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} else {
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cout << "unknown_op\n";
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}
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}
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}
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return 0;
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}
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