diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm index f9dc533fd8..e934226658 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm +++ b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm @@ -23,32 +23,36 @@ .686
.model flat,C
- .xmm
+ .mmx
.code
;------------------------------------------------------------------------------
; VOID *
-; _mem_SetMem16 (
+; EFIAPI
+; InternalMemSetMem16 (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT16 Value
; )
;------------------------------------------------------------------------------
InternalMemSetMem16 PROC USES edi
+ mov eax, [esp + 16]
+ shrd edx, eax, 16
+ shld eax, edx, 16
mov edx, [esp + 12]
mov edi, [esp + 8]
mov ecx, edx
and edx, 3
shr ecx, 2
- mov eax, [esp + 16]
jz @SetWords
movd mm0, eax
- pshufw mm0, mm0, 0
+ movd mm1, eax
+ psllq mm0, 32
+ por mm0, mm1
@@:
- movntq [edi], mm0
+ movq [edi], mm0
add edi, 8
loop @B
- mfence
@SetWords:
mov ecx, edx
rep stosw
|