diff options
Diffstat (limited to 'src/string/x86_64/memmove.s')
| -rw-r--r-- | src/string/x86_64/memmove.s | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/string/x86_64/memmove.s b/src/string/x86_64/memmove.s new file mode 100644 index 00000000..247f0ac3 --- /dev/null +++ b/src/string/x86_64/memmove.s @@ -0,0 +1,15 @@ +.global memmove +.type memmove,@function +memmove: + mov %rdi,%rax + sub %rsi,%rax + cmp %rdx,%rax + jae memcpy + mov %rdx,%rcx + lea -1(%rdi,%rdx),%rdi + lea -1(%rsi,%rdx),%rsi + std + rep movsb + cld + lea 1(%rdi),%rax + ret |