From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/string/x86_64/memmove.s | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 src/string/x86_64/memmove.s (limited to 'src/string/x86_64/memmove.s') diff --git a/src/string/x86_64/memmove.s b/src/string/x86_64/memmove.s new file mode 100644 index 0000000..172c025 --- /dev/null +++ b/src/string/x86_64/memmove.s @@ -0,0 +1,16 @@ +.global memmove +.type memmove,@function +memmove: + mov %rdi,%rax + sub %rsi,%rax + cmp %rdx,%rax +.hidden __memcpy_fwd + jae __memcpy_fwd + mov %rdx,%rcx + lea -1(%rdi,%rdx),%rdi + lea -1(%rsi,%rdx),%rsi + std + rep movsb + cld + lea 1(%rdi),%rax + ret -- cgit v1.2.3