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@DeRegem

DeRegem/g2ej8.asm

Last active November 3, 2015 18:14
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g2ej8.asm
format PE
entry main
section '.text' code readable executable
main:
push intro1
push format_output
call [printf]
add esp,8
push string1
push format_input
call [scanf]
add esp,8
push string1
push intro2
push format_output
call [printf]
add esp,8
push string2
push format_input
call [scanf]
add esp,8
mov edi,string2
pop esi
xor ebx,ebx
xor ecx,ecx
xor edx,edx
; edx=indice de coincidencia de string
; ecx=indice de string principal
; ebx=indice de substring
_bucle:
movzx eax,byte[esi]
cmp eax,0
je _final_sin_coincidencia
cmp al,byte[edi+ebx]
je _coincidencia
xor edx,edx
xor ebx,ebx
inc esi
inc ecx
jmp _bucle
_coincidencia:
mov edx,ecx
inc esi
inc ebx
inc ecx
cmp byte[edi+ebx],0
je _final_con_coincidencia
jmp _bucle
_final:
push num
push format_input
call [scanf]
add esp, 8
push 0
call [exit]
ret
_final_con_coincidencia:
push edx
push format_output2
call [printf]
add esp,8
jmp _final
_final_sin_coincidencia:
push outputsin
push format_output
call [printf]
add esp,8
jmp _final
section '.data' data readable writeable
num db ?
string1 rb 128
string2 rb 128
format_input db "%s",0
format_output db "%s",10,0
format_output2 db "%d",10,0
outputsin db "Sin coincidencias",0
intro1 db "Ingrese string",0
intro2 db "Ingrese substring",0
section '.idata' data import readable
include "macro\import32.inc"
library msvcrt, "MSVCRT.DLL"
import msvcrt,\
printf ,'printf',\
scanf ,'scanf',\
exit ,'exit'
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