output from simple.c:

 100   0x00000064
 101   0x00000065
 104   0x00000068
 109   0x0000006d
 116   0x00000074


output from simple.ys:

Stopped in 74 steps at PC = 0x4c.  Status 'HLT', CC Z=0 S=0 O=0
Changes to registers:
%eax:   0x00000000      0x0000007d
%ecx:   0x00000000      0x00000006
%edx:   0x00000000      0x0000000b
%ebx:   0x00000000      0x00000001
%esi:   0x00000000      0x00000005
%edi:   0x00000000      0x00000064

Changes to memory:
0x0050: 0x00000000      0x00000064
0x0054: 0x00000000      0x00000065
0x0058: 0x00000000      0x00000068
0x005c: 0x00000000      0x0000006d
0x0060: 0x00000000      0x00000074