1. Updated function headers for all assembly function
2. Optimized register usage in SetMemXX functions in all lib instances 3. Fixed a logical error in CopyMem for all lib instances git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1139 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -28,20 +28,20 @@
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;------------------------------------------------------------------------------
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; VOID *
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; _mem_CopyMem (
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; InternalMemCopyMem (
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; IN VOID *Destination,
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; IN VOID *Source,
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; IN UINTN Count
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; )
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; );
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;------------------------------------------------------------------------------
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InternalMemCopyMem PROC USES esi edi
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mov esi, [esp + 16] ; esi <- Source
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mov edi, [esp + 12] ; edi <- Destination
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mov edx, [esp + 20] ; edx <- Count
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lea eax, [edi + edx - 1] ; eax <- End of Destination
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lea eax, [esi + edx - 1] ; eax <- End of Source
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cmp esi, edi
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jae @F
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cmp eax, esi ; Overlapped?
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cmp eax, edi ; Overlapped?
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jae @CopyBackward ; Copy backward if overlapped
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@@:
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xor ecx, ecx
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@@ -70,8 +70,8 @@ InternalMemCopyMem PROC USES esi edi
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add esp, 16 ; stack cleanup
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jmp @CopyBytes
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@CopyBackward:
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mov edi, eax ; edi <- Last byte in Destination
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lea esi, [esi + edx - 1] ; esi <- Last byte in Source
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mov esi, eax ; esi <- Last byte in Source
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lea edi, [edi + edx - 1] ; edi <- Last byte in Destination
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std
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@CopyBytes:
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mov ecx, edx
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