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1. Updated function headers for all assembly function

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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
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27
MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.S
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@@ -21,37 +21,36 @@
#
#------------------------------------------------------------------------------
.686:
#.MODEL flat,C
.xmm:
.code:
.global _InternalMemSetMem16
#------------------------------------------------------------------------------
# VOID *
# _mem_SetMem16 (
# InternalMemSetMem16 (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT16 Value
# )
#------------------------------------------------------------------------------
.global _InternalMemSetMem16
_InternalMemSetMem16:
push %edi
movl 16(%esp), %eax
shrdl $16, %eax, %edx
shldl $16, %edx, %eax
movl 12(%esp), %edx
movl 8(%esp), %edi
movl %edx, %ecx
andl $3, %edx
shrl $2, %ecx
movl 16(%esp), %eax
jz @SetWords
jz L1
movd %eax, %mm0
pshufw $0, %mm0, %mm0
L0:
movntq %mm0, (%edi)
movd %eax, %mm1
psllq $32, %mm0
por %mm1, %mm0
L0:
movq %mm0, (%edi)
addl $8, %edi
loop L0
mfence
@SetWords:
loopl L0
L1:
movl %edx, %ecx
rep
stosw