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| author | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
|---|---|---|
| committer | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
| commit | 4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch) | |
| tree | ebf009bf1376a5a223a915bc27cbbd791a1316bc /src/string/x86_64/memmove.s | |
Initial version
Diffstat (limited to 'src/string/x86_64/memmove.s')
| -rw-r--r-- | src/string/x86_64/memmove.s | 16 |
1 files changed, 16 insertions, 0 deletions
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 |