Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing builds. Also updated the SPD and FPD files UiNames

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2616 6f19259b-4bc3-4df7-8a09-765794883524

OldMdePkg/Library/BaseMemoryLibMmx/X64/CompareMem.S

@@ -0,0 +1,52 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, Intel Corporation
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution.  The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+#   CompareMem.Asm
+#
+# Abstract:
+#
+#   CompareMem function
+#
+# Notes:
+#
+#   The following BaseMemoryLib instances share the same version of this file:
+#
+#       BaseMemoryLibRepStr
+#       BaseMemoryLibMmx
+#       BaseMemoryLibSse2
+#
+#------------------------------------------------------------------------------
+
+#------------------------------------------------------------------------------
+# INTN
+# EFIAPI
+# InternalMemCompareMem (
+#   IN      CONST VOID                *DestinationBuffer,
+#   IN      CONST VOID                *SourceBuffer,
+#   IN      UINTN                     Length
+#   );
+#------------------------------------------------------------------------------
+.global _InternalMemCompareMem;
+_InternalMemCompareMem:
+    push    %rsi
+    push    %rdi
+    mov     %rcx, %rsi
+    mov     %rdx, %rdi
+    mov     %r8, %rcx
+    repe    cmpsb
+    movzbq  -1(%rsi), %rax
+    movzbq  -1(%rdi), %rdx
+    sub     %rdx, %rax
+    pop     %rdi
+    pop     %rsi
+    ret

OldMdePkg/Library/BaseMemoryLibMmx/X64/CompareMem.asm

@@ -0,0 +1,52 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   CompareMem.Asm
+;
+; Abstract:
+;
+;   CompareMem function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; INTN
+; EFIAPI
+; InternalMemCompareMem (
+;   IN      CONST VOID                *DestinationBuffer,
+;   IN      CONST VOID                *SourceBuffer,
+;   IN      UINTN                     Length
+;   );
+;------------------------------------------------------------------------------
+InternalMemCompareMem   PROC    USES    rsi rdi
+    mov     rsi, rcx
+    mov     rdi, rdx
+    mov     rcx, r8
+    repe    cmpsb
+    movzx   rax, byte ptr [rsi - 1]
+    movzx   rdx, byte ptr [rdi - 1]
+    sub     rax, rdx
+    ret
+InternalMemCompareMem   ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S

@@ -0,0 +1,72 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, Intel Corporation
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution.  The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+#   CopyMem.asm
+#
+# Abstract:
+#
+#   CopyMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemCopyMem (
+#   OUT     VOID                      *DestinationBuffer,
+#   IN      CONST VOID                *SourceBuffer,
+#   IN      UINTN                     Length
+#   );
+#------------------------------------------------------------------------------
+.global _InternalMemCopyMem;
+_InternalMemCopyMem:
+    push    %rsi
+    push    %rdi
+    mov     %rdi, %rsi
+    mov     %rcx, %rdi
+    lea     -1(%r8,%rsi,1),%r9
+    cmp     %rdi, %rsi
+    mov     %rdi, %rax
+    jae     L1
+    cmp     %rdi, %r9
+    jae     LCopyBackward               # Copy backward if overlapped
+L1: 
+    mov     %r8, %rcx
+    and     $7, %r8
+    shr     $3, %rcx
+    jz      LCopyBytes
+    movd    %mm0, %r10                  # (Save mm0 in r10)
+L2: 
+    movd    (%rsi), %mm0
+    movntq  %mm0, (%rdi)
+    add     $8, %rsi
+    add     $8, %rdi
+    loop    L2
+    mfence
+    movd    %r10, %mm0                  #(Restore mm0)
+    jmp     LCopyBytes
+LCopyBackward: 
+    mov     %r9, %rsi
+    lea     -1(%r8,%rdi,1),%rdi
+    std                                 # set direction flag
+LCopyBytes: 
+    mov     %r8, %rcx
+    rep
+    movsb                               # Copy bytes backward
+    cld
+    pop     %rdi
+    pop     %rsi
+    ret

OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.asm

@@ -0,0 +1,70 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   CopyMem.asm
+;
+; Abstract:
+;
+;   CopyMem function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemCopyMem (
+;   OUT     VOID                      *DestinationBuffer,
+;   IN      CONST VOID                *SourceBuffer,
+;   IN      UINTN                     Length
+;   );
+;------------------------------------------------------------------------------
+InternalMemCopyMem  PROC    USES    rsi rdi
+    mov     rsi, rdx                    ; rsi <- Source
+    mov     rdi, rcx                    ; rdi <- Destination
+    lea     r9, [rsi + r8 - 1]          ; r9 <- End of Source
+    cmp     rsi, rdi
+    mov     rax, rdi                    ; rax <- Destination as return value
+    jae     @F
+    cmp     r9, rdi
+    jae     @CopyBackward               ; Copy backward if overlapped
+@@:
+    mov     rcx, r8
+    and     r8, 7
+    shr     rcx, 3                      ; rcx <- # of Qwords to copy
+    jz      @CopyBytes
+    DB      49h, 0fh, 7eh, 0c2h         ; movd r10, mm0 (Save mm0 in r10)
+@@:
+    DB      0fh, 6fh, 06h               ; movd mm0, [rsi]
+    DB      0fh, 0e7h, 07h              ; movntq [rdi], mm0
+    add     rsi, 8
+    add     rdi, 8
+    loop    @B
+    mfence
+    DB      49h, 0fh, 6eh, 0c2h         ; movd mm0, r10 (Restore mm0)
+    jmp     @CopyBytes
+@CopyBackward:
+    mov     rsi, r9                     ; rsi <- End of Source
+    lea     rdi, [rdi + r8 - 1]         ; rdi <- End of Destination
+    std                                 ; set direction flag
+@CopyBytes:
+    mov     rcx, r8
+    rep     movsb                       ; Copy bytes backward
+    cld
+    ret
+InternalMemCopyMem  ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/ScanMem16.asm

@@ -0,0 +1,51 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ScanMem16.Asm
+;
+; Abstract:
+;
+;   ScanMem16 function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem16 (
+;   IN      CONST VOID                *Buffer,
+;   IN      UINTN                     Length,
+;   IN      UINT16                    Value
+;   );
+;------------------------------------------------------------------------------
+InternalMemScanMem16    PROC    USES    rdi
+    mov     rdi, rcx
+    mov     rax, r8
+    mov     rcx, rdx
+    repne   scasw
+    lea     rax, [rdi - 2]
+    cmovnz  rax, rcx
+    ret
+InternalMemScanMem16    ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/ScanMem32.asm

@@ -0,0 +1,51 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ScanMem32.Asm
+;
+; Abstract:
+;
+;   ScanMem32 function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem32 (
+;   IN      CONST VOID                *Buffer,
+;   IN      UINTN                     Length,
+;   IN      UINT32                    Value
+;   );
+;------------------------------------------------------------------------------
+InternalMemScanMem32    PROC    USES    rdi
+    mov     rdi, rcx
+    mov     rax, r8
+    mov     rcx, rdx
+    repne   scasd
+    lea     rax, [rdi - 4]
+    cmovnz  rax, rcx
+    ret
+InternalMemScanMem32    ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/ScanMem64.asm

@@ -0,0 +1,51 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ScanMem64.Asm
+;
+; Abstract:
+;
+;   ScanMem64 function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem64 (
+;   IN      CONST VOID                *Buffer,
+;   IN      UINTN                     Length,
+;   IN      UINT64                    Value
+;   );
+;------------------------------------------------------------------------------
+InternalMemScanMem64    PROC    USES    rdi
+    mov     rdi, rcx
+    mov     rax, r8
+    mov     rcx, rdx
+    repne   scasq
+    lea     rax, [rdi - 8]
+    cmovnz  rax, rcx
+    ret
+InternalMemScanMem64    ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/ScanMem8.asm

@@ -0,0 +1,51 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ScanMem8.Asm
+;
+; Abstract:
+;
+;   ScanMem8 function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem8 (
+;   IN      CONST VOID                *Buffer,
+;   IN      UINTN                     Length,
+;   IN      UINT8                     Value
+;   );
+;------------------------------------------------------------------------------
+InternalMemScanMem8 PROC    USES    rdi
+    mov     rdi, rcx
+    mov     rcx, rdx
+    mov     rax, r8
+    repne   scasb
+    lea     rax, [rdi - 1]
+    cmovnz  rax, rcx                    ; set rax to 0 if not found
+    ret
+InternalMemScanMem8 ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/SetMem.asm

@@ -0,0 +1,58 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   SetMem.asm
+;
+; Abstract:
+;
+;   SetMem function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemSetMem (
+;   OUT     VOID                      *Buffer,
+;   IN      UINTN                     Length,
+;   IN      UINT8                     Value
+;   );
+;------------------------------------------------------------------------------
+InternalMemSetMem   PROC    USES    rdi
+    mov     rax, r8
+    mov     ah, al
+    DB      48h, 0fh, 6eh, 0c0h         ; movd mm0, rax
+    mov     r8, rcx
+    mov     rdi, r8                     ; rdi <- Buffer
+    mov     rcx, rdx
+    and     edx, 7
+    shr     rcx, 3
+    jz      @SetBytes
+    DB      0fh, 70h, 0C0h, 00h         ; pshufw mm0, mm0, 0h
+@@:
+    DB      0fh, 0e7h, 07h              ; movntq [rdi], mm0
+    add     rdi, 8
+    loop    @B
+    mfence
+@SetBytes:
+    mov     ecx, edx
+    rep     stosb
+    mov     rax, r8
+    ret
+InternalMemSetMem   ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/SetMem16.asm

@@ -0,0 +1,57 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   SetMem16.asm
+;
+; Abstract:
+;
+;   SetMem16 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .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         ; movd mm0, rax
+    mov     r8, rcx
+    mov     rdi, r8
+    mov     rcx, rdx
+    and     edx, 3
+    shr     rcx, 2
+    jz      @SetWords
+    DB      0fh, 70h, 0C0h, 00h         ; pshufw mm0, mm0, 0h
+@@:
+    DB      0fh, 0e7h, 07h              ; movntq [rdi], mm0
+    add     rdi, 8
+    loop    @B
+    mfence
+@SetWords:
+    mov     ecx, edx
+    rep     stosw
+    mov     rax, r8
+    ret
+InternalMemSetMem16 ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.asm

@@ -0,0 +1,53 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   SetMem32.asm
+;
+; Abstract:
+;
+;   SetMem32 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  InternalMemSetMem32 (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count,
+;    IN UINT32 Value
+;    )
+;------------------------------------------------------------------------------
+InternalMemSetMem32 PROC
+    DB      49h, 0fh, 6eh, 0c0h         ; movd mm0, r8 (Value)
+    mov     rax, rcx                    ; rax <- Buffer
+    xchg    rcx, rdx                    ; rcx <- Count  rdx <- Buffer
+    shr     rcx, 1                      ; rcx <- # of qwords to set
+    jz      @SetDwords
+    DB      0fh, 70h, 0C0h, 44h         ; pshufw mm0, mm0, 44h
+@@:
+    DB      0fh, 0e7h, 02h              ; movntq [rdx], mm0
+    lea     rdx, [rdx + 8]              ; use "lea" to avoid flag changes
+    loop    @B
+    mfence
+@SetDwords:
+    jnc     @F
+    DB      0fh, 7eh, 02h               ; movd [rdx], mm0
+@@:
+    ret
+InternalMemSetMem32 ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm

@@ -0,0 +1,46 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   SetMem64.asm
+;
+; Abstract:
+;
+;   SetMem64 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  InternalMemSetMem64 (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count,
+;    IN UINT64 Value
+;    )
+;------------------------------------------------------------------------------
+InternalMemSetMem64 PROC
+    DB      49h, 0fh, 6eh, 0c0h         ; movd mm0, r8 (Value)
+    mov     rax, rcx                    ; rax <- Buffer
+    xchg    rcx, rdx                    ; rcx <- Count
+@@:
+    DB      0fh, 0e7h, 02h              ; movntq  [rdx], mm0
+    add     rdx, 8
+    loop    @B
+    mfence
+    ret
+InternalMemSetMem64 ENDP
+
+    END

OldMdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.asm

@@ -0,0 +1,54 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ZeroMem.asm
+;
+; Abstract:
+;
+;   ZeroMem function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  InternalMemZeroMem (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count
+;    );
+;------------------------------------------------------------------------------
+InternalMemZeroMem  PROC    USES    rdi
+    mov     rdi, rcx
+    mov     rcx, rdx
+    mov     r8, rdi
+    and     edx, 7
+    shr     rcx, 3
+    jz      @ZeroBytes
+    DB      0fh, 0efh, 0c0h             ; pxor mm0, mm0
+@@:
+    DB      0fh, 0e7h, 7                ; movntq [rdi], mm0
+    add     rdi, 8
+    loop    @B
+    DB      0fh, 0aeh, 0f0h             ; mfence
+@ZeroBytes:
+    xor     eax, eax
+    mov     ecx, edx
+    rep     stosb
+    mov     rax, r8
+    ret
+InternalMemZeroMem  ENDP
+
+    END