23 lines
247 B
NASM
23 lines
247 B
NASM
global libz_strlen
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section .text
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libz_strlen:
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sub rsp, 8 ;enter
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mov r10, rdi
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_loop67865432:
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mov r9b, [rdi]
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cmp r9b, 0
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jz _exitloop4323567
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inc rdi
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jmp _loop67865432
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_exitloop4323567:
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sub rdi, r10
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mov rax, rdi
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add rsp, 8 ;exit
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ret
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