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Side by Side Diff: fusl/src/string/i386/memcpy.s

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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1 .global memcpy
2 .global __memcpy_fwd
3 .hidden __memcpy_fwd
4 .type memcpy,@function
5 memcpy:
6 __memcpy_fwd:
7 push %esi
8 push %edi
9 mov 12(%esp),%edi
10 mov 16(%esp),%esi
11 mov 20(%esp),%ecx
12 mov %edi,%eax
13 cmp $4,%ecx
14 jc 1f
15 test $3,%edi
16 jz 1f
17 2: movsb
18 dec %ecx
19 test $3,%edi
20 jnz 2b
21 1: mov %ecx,%edx
22 shr $2,%ecx
23 rep
24 movsl
25 and $3,%edx
26 jz 1f
27 2: movsb
28 dec %edx
29 jnz 2b
30 1: pop %edi
31 pop %esi
32 ret
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