playing around with emulation

gistfile1.c

zebrafinch:emu drx$ python emu.py test
// Module start
int d0;
int d1;
int d2;
int d3;
int d4;
int d5;
int d6;
int d7;
int a0;
int a1;
int a2;
int a3;
int a4;
int a5;
int a6;
int a7;
int sp2;
int pc;
int z;
int v;
int x;
int c;
int n;
int int_mask;
int s;
int t;
int init() {
  d0 = 0;
  d1 = 0;
  d2 = 0;
  d3 = 0;
  d4 = 0;
  d5 = 0;
  d6 = 0;
  d7 = 0;
  a0 = 0;
  a1 = 0;
  a2 = 0;
  a3 = 0;
  a4 = 0;
  a5 = 0;
  a6 = 0;
  a7 = 0;
  sp2 = 0;
  pc = 0;
  c = 0;
  n = 0;
  s = 0;
  t = 0;
  v = 0;
  x = 0;
  z = 0;
  int_mask = 0;
  a7 = bus_read(32, 0);
  pc = bus_read(32, 4);
}
int reset() {
  d0 = 0;
  d1 = 0;
  d2 = 0;
  d3 = 0;
  d4 = 0;
  d5 = 0;
  d6 = 0;
  d7 = 0;
  a0 = 0;
  a1 = 0;
  a2 = 0;
  a3 = 0;
  a4 = 0;
  a5 = 0;
  a6 = 0;
  a7 = 0;
  sp2 = 0;
  pc = 0;
  c = 0;
  n = 0;
  s = 0;
  t = 0;
  v = 0;
  x = 0;
  z = 0;
  int_mask = 0;
  a7 = bus_read(32, 0);
  pc = bus_read(32, 4);
}
int execute() {
  int r26;
  r26 = bus_read(16, pc);
  pc = (pc) + (2);
  switch (r26) {
    case 20081:
    break;
    case 24826:
      if (1) {
        pc = (pc) + (-6);
      }
    break;
    case 19129:
      int r28;
      int r29;
      r29 = bus_read(32, pc);
      pc = (pc) + (4);
      r28 = bus_read(32, r29);
      int r27;
      r27 = r28;
      r28 = r27;
      n = 0;
      c = 0;
      z = 0;
      v = 0;
    break;
    case 26118:
      if (!(z)) {
        pc = (pc) + (6);
      }
    break;
    case 19065:
      int r31;
      r28 = r31;
      int r32;
      r29 = r32;
      r29 = bus_read(32, pc);
      pc = (pc) + (4);
      r28 = bus_read(16, r29);
      int r30;
      r30 = r28;
      r28 = r30;
      n = 0;
      c = 0;
      z = 0;
      v = 0;
    break;
    case 26236:
      if (!(z)) {
        pc = (pc) + (124);
      }
    break;
    case 19450:
      int r33;
      r28 = r33;
      int r35;
      r29 = r35;
      r29 = bus_read(16, pc);
      pc = (pc) + (2);
      int r34;
      r34 = r29;
      r28 = (pc) + (r34);
      a5 = r28;
    break;
    case 24832:
      int r36;
      r29 = r36;
      r29 = bus_read(16, pc);
      pc = (pc) + (2);
      a7 = (a7) - (4);
      pc = (pc) + (r29);
    break;
  }
}
// Module end