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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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21
MdePkg/Library/BaseMemoryLibMmx/X64/SetMem16.asm
View File

@ -23,23 +23,32 @@
.code
;------------------------------------------------------------------------------
; VOID *
; EFIAPI
; InternalMemSetMem16 (
; OUT VOID *Buffer,
; IN UINTN Length,
; IN UINT16 Value
; );
;------------------------------------------------------------------------------
InternalMemSetMem16 PROC USES rdi
mov rax, r8
DB 48h, 0fh, 6eh, 0c0h ; movq mm0, rax
DB 48h, 0fh, 6eh, 0c0h ; movd mm0, rax
mov r8, rcx
mov rdi, r8
mov rcx, rdx
and rdx, 3
and edx, 3
shr rcx, 2
jz @SetWords
DB 0fh, 70h, 0C0h, 00h ; pshufw mm0, mm0, 0h
@@:
DB 48h, 0fh, 0e7h, 07h ; movntq [rdi], mm0
DB 0fh, 70h, 0C0h, 00h ; pshufw mm0, mm0, 0h
@@:
DB 0fh, 0e7h, 07h ; movntq [rdi], mm0
add rdi, 8
loop @B
mfence
@SetWords:
mov rcx, rdx
mov ecx, edx
rep stosw
mov rax, r8
ret