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
This commit is contained in:
bxing
2006-07-28 07:28:19 +00:00
parent 27169a56e6
commit eb227e96bd
106 changed files with 1006 additions and 457 deletions

View File

@@ -23,35 +23,35 @@
.686
.model flat,C
.xmm
.mmx
.code
;------------------------------------------------------------------------------
; VOID *
; _mem_SetMem32 (
; EFIAPI
; InternalMemSetMem32 (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT32 Value
; )
; );
;------------------------------------------------------------------------------
InternalMemSetMem32 PROC USES edi
mov edx, [esp + 12]
mov edi, [esp + 8]
mov ecx, edx
shr ecx, 1
movd mm0, [esp + 16]
mov eax, edi
InternalMemSetMem32 PROC
mov eax, [esp + 4] ; eax <- Buffer as return value
mov ecx, [esp + 8] ; ecx <- Count
movd mm0, [esp + 12] ; mm0 <- Value
shr ecx, 1 ; ecx <- number of qwords to set
mov edx, eax ; edx <- Buffer
jz @SetDwords
pshufw mm0, mm0, 44h
movq mm1, mm0
psllq mm1, 32
por mm0, mm1
@@:
movntq [edi], mm0
add edi, 8
movq [edx], mm0
lea edx, [edx + 8] ; use "lea" to avoid change in flags
loop @B
mfence
@SetDwords:
test dl, 1
jz @F
movd [edi], mm0
jnc @F
movd [edx], mm0
@@:
ret
InternalMemSetMem32 ENDP