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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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41
MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S
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@@ -21,39 +21,32 @@
#
#------------------------------------------------------------------------------
.686:
#.MODEL flat,C
.xmm:
.code:
.global _InternalMemSetMem32
#------------------------------------------------------------------------------
# VOID *
# _mem_SetMem32 (
# InternalMemSetMem32 (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT32 Value
# )
#------------------------------------------------------------------------------
.global _InternalMemSetMem32
_InternalMemSetMem32:
push %edi
movl 12(%esp), %edx
movl 8(%esp), %edi
movl %edx, %ecx
movl 4(%esp), %eax
movl 8(%esp), %ecx
movd 12(%esp), %mm0
shrl %ecx
movd 16(%esp), %mm0
movl %edi, %eax
jz @SetDwords
pshufw $0x44, %mm0, %mm0
L0:
movntq %mm0, (%edi)
addl $8, %edi
loopl L0
mfence
@SetDwords:
testb $1, %dl
movl %eax, %edx
jz L1
movd %mm0, (%edi)
L1:
pop %edi
movq %mm0, %mm1
psllq $32, %mm1
por %mm1, %mm0
L0:
movq %mm0, (%edx)
lea 8(%edx), %edx
loopl L0
L1:
jnc L2
movd %mm0, (%edx)
L2:
ret