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Improve memcpy. It was working correctly, but it wasted a cycle. ;-)

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svn path=/trunk/; revision=36585
This commit is contained in:
Timo Kreuzer 2008-09-28 21:50:05 +00:00
parent 36a547b4a7
commit 76bf74c7f7
1 changed files with 6 additions and 7 deletions
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13
reactos/lib/sdk/crt/mem/i386/memcpy_asm.s
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@ -23,13 +23,12 @@ _memcpy:
/*
* Make the destination dword aligned
*/
mov %edi,%ecx
and $3,%ecx
sub $5,%ecx
not %ecx
sub %ecx,%edx
rep movsb
mov %edx,%ecx
mov %edi,%ecx
neg %ecx
and $3,%ecx
sub %ecx,%edx
rep movsb
mov %edx,%ecx
.L2:
shr $2,%ecx
rep movsl