diff options
Diffstat (limited to 'libc-top-half/musl/src/string/i386/memcpy.s')
| -rw-r--r-- | libc-top-half/musl/src/string/i386/memcpy.s | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/string/i386/memcpy.s b/libc-top-half/musl/src/string/i386/memcpy.s new file mode 100644 index 0000000..0608dd8 --- /dev/null +++ b/libc-top-half/musl/src/string/i386/memcpy.s @@ -0,0 +1,32 @@ +.global memcpy +.global __memcpy_fwd +.hidden __memcpy_fwd +.type memcpy,@function +memcpy: +__memcpy_fwd: + push %esi + push %edi + mov 12(%esp),%edi + mov 16(%esp),%esi + mov 20(%esp),%ecx + mov %edi,%eax + cmp $4,%ecx + jc 1f + test $3,%edi + jz 1f +2: movsb + dec %ecx + test $3,%edi + jnz 2b +1: mov %ecx,%edx + shr $2,%ecx + rep + movsl + and $3,%edx + jz 1f +2: movsb + dec %edx + jnz 2b +1: pop %edi + pop %esi + ret |