ref: d58f3f2eb9cb620b8746ff9f7b6c172a91720629
dir: /src/libc/arch/amd64/strcpy.s/
.file "strcpy.s" .text .globl strcpy,_strcpy strcpy: _strcpy: movq %rdi,%r9 movb $0,%al movq $-1,%rcx cld movq %rsi,%rdi repne scasb movq %rdi,%rcx subq %rsi,%rcx movq %r9,%rdi mov %rdi,%rax rep; movsb ret