diff options
Diffstat (limited to 'libc-top-half/musl/src/string/x86_64/memcpy.s')
| -rw-r--r-- | libc-top-half/musl/src/string/x86_64/memcpy.s | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/string/x86_64/memcpy.s b/libc-top-half/musl/src/string/x86_64/memcpy.s new file mode 100644 index 0000000..3d960ef --- /dev/null +++ b/libc-top-half/musl/src/string/x86_64/memcpy.s @@ -0,0 +1,25 @@ +.global memcpy +.global __memcpy_fwd +.hidden __memcpy_fwd +.type memcpy,@function +memcpy: +__memcpy_fwd: + mov %rdi,%rax + cmp $8,%rdx + jc 1f + test $7,%edi + jz 1f +2: movsb + dec %rdx + test $7,%edi + jnz 2b +1: mov %rdx,%rcx + shr $3,%rcx + rep + movsq + and $7,%edx + jz 1f +2: movsb + dec %edx + jnz 2b +1: ret |