mirror of https://github.com/acidanthera/audk.git
1. Added '#pragma pack' directive in BaseLib.h for the structure IA32_DESCRIPTOR
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
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@ -2905,10 +2905,12 @@ typedef union {
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// Byte packed structure for an IDTR, GDTR, LDTR descriptor
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/// @bug How to make this structure byte-packed in a compiler independent way?
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//
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#pragma pack (1)
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typedef struct {
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UINT16 Limit;
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UINTN Base;
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} IA32_DESCRIPTOR;
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#pragma pack ()
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#define IA32_IDT_GATE_TYPE_TASK 0x85
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#define IA32_IDT_GATE_TYPE_INTERRUPT_16 0x86
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@ -34,14 +34,14 @@
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; IN UINT64 Value
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; )
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;------------------------------------------------------------------------------
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InternalMemSetMem64 PROC USES edi
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movq mm0, [esp + 16]
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mov ecx, [esp + 12]
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mov edi, [esp + 8]
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mov eax, edi
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InternalMemSetMem64 PROC
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mov eax, [esp + 4]
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mov ecx, [esp + 8]
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movq mm0, [esp + 12]
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mov edx, eax
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@@:
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movntq [edi], mm0
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add edi, 8
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movntq [edx], mm0
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add edx, 8
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loop @B
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mfence
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ret
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@ -28,34 +28,34 @@
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;------------------------------------------------------------------------------
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; VOID *
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; _mem_SetMem64 (
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; InternalMemSetMem64 (
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; IN VOID *Buffer,
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; IN UINTN Count,
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; IN UINT64 Value
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; )
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;------------------------------------------------------------------------------
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InternalMemSetMem64 PROC USES edi
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mov ecx, [esp + 12]
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mov edi, [esp + 8]
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test edi, 8
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DB 0f2h, 0fh, 12h, 44h, 24h, 16 ; movddup xmm0, [esp + 16]
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InternalMemSetMem64 PROC
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mov eax, [esp + 4]
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mov ecx, [esp + 8]
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test al, 8
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mov edx, eax
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movq xmm0, [esp + 12]
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jz @F
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movq [edi], xmm0
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add edi, 8
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movq [edx], xmm0
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add edx, 8
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dec ecx
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@@:
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mov edx, ecx
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shr ecx, 1
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jz @SetQwords
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movlhps xmm0, xmm0
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@@:
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movntdq [edi], xmm0
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add edi, 16
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movntdq [edx], xmm0
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lea edx, [edx + 16]
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loop @B
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mfence
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@SetQwords:
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test dl, 1
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jz @F
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movq [edi], xmm0
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jnc @F
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movq [edx], xmm0
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@@:
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ret
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InternalMemSetMem64 ENDP
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@ -25,35 +25,33 @@
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;------------------------------------------------------------------------------
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; VOID *
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; _mem_SetMem64 (
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; InternalMemSetMem64 (
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; IN VOID *Buffer,
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; IN UINTN Count,
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; IN UINT8 Value
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; IN UINT64 Value
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; )
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;------------------------------------------------------------------------------
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InternalMemSetMem64 PROC USES rdi
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mov rdi, rcx
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mov r9, rcx
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test cl, 8
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InternalMemSetMem64 PROC
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mov rax, rcx
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test dl, 8
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xchg rcx, rdx
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jz @F
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mov [rdi], r8
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add rdi, 8
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dec rdx
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mov [rdx], r8
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add rdx, 8
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dec rcx
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@@:
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mov rcx, rdx
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shr rcx, 1
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jz @SetQwords
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movd xmm0, r8
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movlhps xmm0, xmm0
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@@:
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movntdq [rdi], xmm0
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add rdi, 16
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movntdq [rdx], xmm0
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lea rdx, [rdx + 16]
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loop @B
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mfence
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@SetQwords:
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test dl, 1
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jz @F
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mov [rdi], r8
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jnc @F
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mov [rdx], r8
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@@:
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ret
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InternalMemSetMem64 ENDP
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