47 lines
460 B
ArmAsm
47 lines
460 B
ArmAsm
bits 32
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section .text
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global putchar
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global getchar
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global _start
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extern main
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align 4
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_start:
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call main
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jmp $
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align 4
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putchar:
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mov eax, [esp+4]
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mov [buf], eax
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push dword 1
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push dword buf
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push dword 1
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mov eax, 4
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call kernel
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add esp, 12
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ret
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align 4
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getchar:
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push dword 1
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push dword buf
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push dword 0
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mov eax, 3
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call kernel
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add esp, 12
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mov eax, 0
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mov eax, [buf]
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ret
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align 4
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kernel:
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int 80h
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ret
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section .data
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buf:
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dd 0
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dd 0
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dd 0
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dd 0
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