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1. Added '#pragma pack' directive in BaseLib.h for the structure IA32_DESCRIPTOR

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2. Updated SetMem64.asm's to remove any SSE3 instructions.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@901 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
bxing
2006-07-12 09:23:28 +00:00
parent 7867eb23e8
commit db8f40e294
4 changed files with 55 additions and 55 deletions
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28
MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm
View File

@@ -28,34 +28,34 @@
;------------------------------------------------------------------------------
; VOID *
; _mem_SetMem64 (
; InternalMemSetMem64 (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT64 Value
; )
;------------------------------------------------------------------------------
InternalMemSetMem64 PROC USES edi
mov ecx, [esp + 12]
mov edi, [esp + 8]
test edi, 8
DB 0f2h, 0fh, 12h, 44h, 24h, 16 ; movddup xmm0, [esp + 16]
InternalMemSetMem64 PROC
mov eax, [esp + 4]
mov ecx, [esp + 8]
test al, 8
mov edx, eax
movq xmm0, [esp + 12]
jz @F
movq [edi], xmm0
add edi, 8
movq [edx], xmm0
add edx, 8
dec ecx
@@:
mov edx, ecx
shr ecx, 1
jz @SetQwords
movlhps xmm0, xmm0
@@:
movntdq [edi], xmm0
add edi, 16
movntdq [edx], xmm0
lea edx, [edx + 16]
loop @B
mfence
@SetQwords:
test dl, 1
jz @F
movq [edi], xmm0
jnc @F
movq [edx], xmm0
@@:
ret
InternalMemSetMem64 ENDP

28
MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm
View File

@@ -25,35 +25,33 @@
;------------------------------------------------------------------------------
; VOID *
; _mem_SetMem64 (
; InternalMemSetMem64 (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT8 Value
; IN UINT64 Value
; )
;------------------------------------------------------------------------------
InternalMemSetMem64 PROC USES rdi
mov rdi, rcx
mov r9, rcx
test cl, 8
InternalMemSetMem64 PROC
mov rax, rcx
test dl, 8
xchg rcx, rdx
jz @F
mov [rdi], r8
add rdi, 8
dec rdx
mov [rdx], r8
add rdx, 8
dec rcx
@@:
mov rcx, rdx
shr rcx, 1
jz @SetQwords
movd xmm0, r8
movlhps xmm0, xmm0
@@:
movntdq [rdi], xmm0
add rdi, 16
movntdq [rdx], xmm0
lea rdx, [rdx + 16]
loop @B
mfence
@SetQwords:
test dl, 1
jz @F
mov [rdi], r8
jnc @F
mov [rdx], r8
@@:
ret
InternalMemSetMem64 ENDP