Introdução:
ndisasm -b bits <arquivo>
Especifica o modo de 16, 32 ou 64 bits. Por padrão, é o modo de 16 bits.
Comando:
ndisasm -b32 exemplo
Resultado:
00000000  7F45              jg 0x47
00000002  4C                dec esp
00000003  46                inc esi
00000004  0101              add [ecx],eax
00000006  0100              add [eax],eax
00000008  0000              add [eax],al
0000000A  0000              add [eax],al
0000000C  0000              add [eax],al
0000000E  0000              add [eax],al
00000010  0200              add al,[eax]
00000012  0300              add eax,[eax]
00000014  0100              add [eax],eax
00000016  0000              add [eax],al
00000018  80800408340000    add byte [eax+0x340804],0x0
0000001F  00C8              add al,cl
00000021  0000              add [eax],al
00000023  0000              add [eax],al
00000025  0000              add [eax],al
00000027  003400            add [eax+eax],dh
0000002A  2000              and [eax],al
0000002C  0200              add al,[eax]
0000002E  2800              sub [eax],al
00000030  0400              add al,0x0
00000032  0300              add eax,[eax]
00000034  0100              add [eax],eax
00000036  0000              add [eax],al
00000038  0000              add [eax],al
0000003A  0000              add [eax],al
0000003C  008004080080      add [eax-0x7ffff7fc],al
00000042  0408              add al,0x8
00000044  A2000000A2        mov [0xa2000000],al
00000049  0000              add [eax],al
0000004B  000500000000      add [dword 0x0],al
00000051  1000              adc [eax],al
00000053  0001              add [ecx],al
00000055  0000              add [eax],al
00000057  00A4000000A490    add [eax+eax-0x6f5c0000],ah
0000005E  0408              add al,0x8
00000060  A4                movsb
00000061  90                nop
00000062  0408              add al,0x8
00000064  0D0000000D        or eax,0xd000000
00000069  0000              add [eax],al
0000006B  0006              add [esi],al
0000006D  0000              add [eax],al
0000006F  0000              add [eax],al
00000071  1000              adc [eax],al
00000073  0000              add [eax],al
00000075  0000              add [eax],al
00000077  0000              add [eax],al
00000079  0000              add [eax],al
0000007B  0000              add [eax],al
0000007D  0000              add [eax],al
0000007F  00B804000000      add [eax+0x4],bh
00000085  BB01000000        mov ebx,0x1
0000008A  B9A4900408        mov ecx,0x80490a4
0000008F  BA0D000000        mov edx,0xd
00000094  CD80              int 0x80
00000096  B801000000        mov eax,0x1
0000009B  BB00000000        mov ebx,0x0
000000A0  CD80              int 0x80
000000A2  0000              add [eax],al
000000A4  48                dec eax
000000A5  656C              gs insb
000000A7  6C                insb
000000A8  6F                outsd
000000A9  20576F            and [edi+0x6f],dl
000000AC  726C              jc 0x11a
000000AE  64210A            and [fs:edx],ecx
000000B1  002E              add [esi],ch
000000B3  7368              jnc 0x11d
000000B5  7374              jnc 0x12b
000000B7  7274              jc 0x12d
000000B9  61                popad
000000BA  6200              bound eax,[eax]
000000BC  2E7465            cs jz 0x124
000000BF  7874              js 0x135
000000C1  002E              add [esi],ch
000000C3  6461              fs popad
000000C5  7461              jz 0x128
000000C7  0000              add [eax],al
000000C9  0000              add [eax],al
000000CB  0000              add [eax],al
000000CD  0000              add [eax],al
000000CF  0000              add [eax],al
000000D1  0000              add [eax],al
000000D3  0000              add [eax],al
000000D5  0000              add [eax],al
000000D7  0000              add [eax],al
000000D9  0000              add [eax],al
000000DB  0000              add [eax],al
000000DD  0000              add [eax],al
000000DF  0000              add [eax],al
000000E1  0000              add [eax],al
000000E3  0000              add [eax],al
000000E5  0000              add [eax],al
000000E7  0000              add [eax],al
000000E9  0000              add [eax],al
000000EB  0000              add [eax],al
000000ED  0000              add [eax],al
000000EF  000B              add [ebx],cl
000000F1  0000              add [eax],al
000000F3  0001              add [ecx],al
000000F5  0000              add [eax],al
000000F7  0006              add [esi],al
000000F9  0000              add [eax],al
000000FB  008080040880      add [eax-0x7ff7fb80],al
00000101  0000              add [eax],al
00000103  0022              add [edx],ah
00000105  0000              add [eax],al
00000107  0000              add [eax],al
00000109  0000              add [eax],al
0000010B  0000              add [eax],al
0000010D  0000              add [eax],al
0000010F  0010              add [eax],dl
00000111  0000              add [eax],al
00000113  0000              add [eax],al
00000115  0000              add [eax],al
00000117  0011              add [ecx],dl
00000119  0000              add [eax],al
0000011B  0001              add [ecx],al
0000011D  0000              add [eax],al
0000011F  0003              add [ebx],al
00000121  0000              add [eax],al
00000123  00A4900408A400    add [eax+edx*4+0xa40804],ah
0000012A  0000              add [eax],al
0000012C  0D00000000        or eax,0x0
00000131  0000              add [eax],al
00000133  0000              add [eax],al
00000135  0000              add [eax],al
00000137  000400            add [eax+eax],al
0000013A  0000              add [eax],al
0000013C  0000              add [eax],al
0000013E  0000              add [eax],al
00000140  0100              add [eax],eax
00000142  0000              add [eax],al
00000144  0300              add eax,[eax]
00000146  0000              add [eax],al
00000148  0000              add [eax],al
0000014A  0000              add [eax],al
0000014C  0000              add [eax],al
0000014E  0000              add [eax],al
00000150  B100              mov cl,0x0
00000152  0000              add [eax],al
00000154  17                pop ss
00000155  0000              add [eax],al
00000157  0000              add [eax],al
00000159  0000              add [eax],al
0000015B  0000              add [eax],al
0000015D  0000              add [eax],al
0000015F  0001              add [ecx],al
00000161  0000              add [eax],al
00000163  0000              add [eax],al
00000165  0000              add [eax],al
00000167  00                db 0x00