.intel_syntax
.data
.align 4
VAR: .long 0
BOL: .byte 0
.text
.globl __xatoi
__xatoi:
push ebp
mov ebp, esp
xor eax, eax
mov VAR, eax
mov BOL, eax /* false */
mov ecx, 0xa /* 10*/
mov edi, [ebp+8]
cmp byte ptr[edi], 0x2d /* '-' */
jne __it
inc edi
mov byte ptr BOL, 0x1 /* true */
call __cmp
__it:
call __cmp
movzx ebx, byte ptr[edi]
sub bl, 0x30 /* '0' */
mov eax, VAR
mul ecx
add eax, ebx
mov VAR , eax
inc edi
cmp byte ptr[edi], 0x00
jne __it
jmp __atexit
__cmp:
cmp byte ptr[edi], 0x39
ja __atexit
cmp byte ptr[edi], 0x30
jb __atexit
ret
__atexit:
cmp byte ptr BOL, 0x1
je __neg
jmp __exit
__neg:
mov eax, VAR
neg eax
mov VAR , eax
__exit:
mov eax, VAR
leave
ret
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