riscv/riscv-dis.cc

   1 // See LICENSE for license details.
   2
   3 // This little program finds occurrences of strings like
   4 //  DASM(ffabc013)
   5 // in its input, then replaces them with the disassembly
   6 // enclosed hexadecimal number, interpreted as a RISC-V
   7 // instruction.
   8
   9 #include "disasm.h"
  10 #include <iostream>
  11 #include <string>
  12 #include <cstdint>
  13 using namespace std;
  14
  15 int main()
  16 {
  17   string s;
  18   disassembler_t d;
  19
  20   while (getline(cin, s))
  21   {
  22     for (size_t start = 0; (start = s.find("DASM(", start)) != string::npos; )
  23     {
  24       size_t end = s.find(')', start);
  25       if (end == string::npos)
  26         break;
  27
  28       size_t numstart = start + strlen("DASM(");
  29       uint32_t n = strtoul(&s[numstart], NULL, 16);
  30
  31       string dis = d.disassemble(*(insn_t*)&n);
  32
  33       s = s.substr(0, start) + dis + s.substr(end+1);
  34       start += dis.length();
  35     }
  36
  37     cout << s << '\n';
  38   }
  39
  40   return 0;
  41 }