18 lines
337 B
ArmAsm
18 lines
337 B
ArmAsm
global ft_strcpy
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ft_strcpy:
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xor rdx, rdx
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.cpy:
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cmp byte [rsi + rdx], 0 ; if src is empty
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je .end
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mov rax, [rsi + rdx] ; move src[rdx] to rax
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mov word [rdi + rdx], ax ; dest[rdx] = src[rdx]
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inc rdx ; rdx++
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jmp .cpy
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.end:
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mov byte [rdi + rdx], 0 ; dest[rdx] = '\0'
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mov rax, rdi ; set dest as the return value
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ret ; return
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