1. Life, the Universe, and Everything
Your program is to use the brute-force approach in order to find the Answer to Life, the Universe, and Everything. More precisely... rewrite small numbers from input to output. Stop processing input after reading in the number 42. All numbers at input are integers of one or two digits.
Example
Input:
1
2
88
42
99
Output:
1
2
88
我的代码：
section .bss
buf : resb 0x4
len : resd 0x1
section .text
global _start
_start :
xor eax, eax
mov [len], eax
mov [buf], al
mov [buf+1], al
LOOP_INPUT :
call INPUT
cmp al, 0xa
jne LOOP_INPUT
mov al, [buf]
cmp al, '4'
jne LOOP_JUDGE_E
mov al, [buf+1]
cmp al, '2'
jne LOOP_JUDGE_E
jmp EXIT
LOOP_JUDGE_E :
call OUTPUT
jmp _start
INPUT :
mov eax, 0x3
mov ebx, 0x0
mov ecx, buf
add ecx, [len]
mov edx, 0x1
int 0x80
mov eax, [len]
inc eax
mov [len], eax
mov al, [ecx]
ret
OUTPUT :
mov eax, 0x4
mov ebx, 0x1
mov ecx, buf
mov edx, [len]
int 0x80
ret
EXIT :
mov eax, 1
xor ebx, ebx
int 0x80