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31 lines
353 B
NASM
31 lines
353 B
NASM
3 years ago
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global _start
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section .text
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_start:
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; input
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mov eax, 3
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xor ebx, ebx
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mov ecx, nya
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mov edx, 1
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int 0x80
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; modification
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mov ax, word [nya]
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or ax, 0111b
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mov [nya], ax
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; output
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mov eax, 4
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mov ebx, 1
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mov ecx, nya
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mov edx, 1
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int 0x80
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; program exit
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mov eax, 1 ; sys_exit = 1
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xor ebx, ebx
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int 0x80
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section .bss
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nya resb 1
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