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Matheus
53 lines
614 B
NASM
53 lines
614 B
NASM
section .text:
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global arch_u_strlen
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global arch_u_strlen_cont
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arch_u_strlen:
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xor rcx, rcx
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.loop:
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cmp byte [rdi],0
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je .done
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inc rcx
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inc rdi
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jmp .loop
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.done:
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mov [rsi], rcx
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xor rax, rax
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ret
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arch_u_strlen_cont:
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mov rax, 1
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ret
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global arch_u_memcpy
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global arch_u_memcpy_cont
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arch_u_memcpy:
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mov rcx, rdx
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rep movsb
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xor rax, rax
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ret
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arch_u_memcpy_cont:
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mov rax, 1
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ret
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global arch_u_strcpy
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global arch_u_strcpy_cont
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arch_u_strcpy:
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.loop:
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mov al, [rsi]
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mov [rdi], al
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inc rsi
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inc rdi
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test al,al
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jz .done
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jmp .loop
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.done:
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xor rax,rax
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ret
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arch_u_strcpy_cont:
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mov rax, 1
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ret
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