25 lines
263 B
ArmAsm
25 lines
263 B
ArmAsm
section .text
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global ft_strlen
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ft_strlen:
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test rdi, rdi
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jz err
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mov rsi, rdi
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jmp loop_start
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increase_pointer:
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lea rsi, [rsi + 1]
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loop_start:
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mov al, [rsi]
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test al, al
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jnz increase_pointer
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end:
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sub rsi, rdi
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mov rax, rsi
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ret
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err:
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xor rax, rax
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ret
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