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-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.S53
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.asm54
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.S85
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.asm84
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.S50
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.asm53
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.S50
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.asm53
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.S59
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.asm62
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.S50
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.asm53
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.S55
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.asm53
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.S43
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.asm45
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.S43
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.asm45
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.S46
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.asm49
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.S49
-rw-r--r--MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.asm50
22 files changed, 1184 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.S
new file mode 100644
index 0000000000..725367b2f9
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.S
@@ -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:
+#
+# CompareMem.Asm
+#
+# Abstract:
+#
+# CompareMem function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances share the same version of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemCompareMem
+
+#------------------------------------------------------------------------------
+# INTN
+# EFIAPI
+# InternalMemCompareMem (
+# IN CONST VOID *DestinationBuffer,
+# IN CONST VOID *SourceBuffer,
+# IN UINTN Length
+# );
+#------------------------------------------------------------------------------
+_InternalMemCompareMem:
+ push %esi
+ push %edi
+ movl 12(%esp), %esi
+ movl 16(%esp), %edi
+ movl 20(%esp), %ecx
+ repe cmpsb
+ movzbl -1(%esi), %eax
+ movzbl -1(%edi), %edx
+ subl %edx, %eax
+ pop %edi
+ pop %esi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.asm
new file mode 100644
index 0000000000..1d0e7fad39
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CompareMem.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:
+;
+; CompareMem.Asm
+;
+; Abstract:
+;
+; CompareMem function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances share the same version of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; INTN
+; EFIAPI
+; InternalMemCompareMem (
+; IN CONST VOID *DestinationBuffer,
+; IN CONST VOID *SourceBuffer,
+; IN UINTN Length
+; );
+;------------------------------------------------------------------------------
+InternalMemCompareMem PROC USES esi edi
+ mov esi, [esp + 12]
+ mov edi, [esp + 16]
+ mov ecx, [esp + 20]
+ repe cmpsb
+ movzx eax, byte ptr [esi - 1]
+ movzx edx, byte ptr [edi - 1]
+ sub eax, edx
+ ret
+InternalMemCompareMem ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.S
new file mode 100644
index 0000000000..ddbcbaf1b1
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.S
@@ -0,0 +1,85 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemCopyMem
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemCopyMem (
+# IN VOID *Destination,
+# IN VOID *Source,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+_InternalMemCopyMem:
+ push %esi
+ push %edi
+ movl 16(%esp), %esi # esi <- Source
+ movl 12(%esp), %edi # edi <- Destination
+ movl 20(%esp), %edx # edx <- Count
+ leal -1(%esi,%edx,), %eax # eax <- End of Source
+ cmpl %edi, %esi
+ jae L0
+ cmpl %edi, %eax # Overlapped?
+ jae L_CopyBackward # Copy backward if overlapped
+L0:
+ xorl %ecx, %ecx
+ subl %edi, %ecx
+ andl $15, %ecx # ecx + edi aligns on 16-byte boundary
+ jz L1
+ cmpl %edx, %ecx
+ cmova %edx, %ecx
+ subl %ecx, %edx # edx <- remaining bytes to copy
+ rep
+ movsb
+L1:
+ movl %edx, %ecx
+ andl $15, %edx
+ shrl $4, %ecx # ecx <- # of DQwords to copy
+ jz L_CopyBytes
+ addl $-16, %esp
+ movdqu %xmm0, (%esp)
+L2:
+ movdqu (%esi), %xmm0
+ movntdq %xmm0, (%edi)
+ addl $16, %esi
+ addl $16, %edi
+ loop L2
+ mfence
+ movdqu (%esp),%xmm0
+ addl $16, %esp # stack cleanup
+ jmp L_CopyBytes
+L_CopyBackward:
+ movl %eax, %esi # esi <- Last byte in Source
+ leal -1(%edi,%edx,), %edi # edi <- Last byte in Destination
+ std
+L_CopyBytes:
+ movl %edx, %ecx
+ rep
+ movsb
+ cld
+ movl 12(%esp), %eax # eax <- Destination as return value
+ pop %edi
+ pop %esi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.asm
new file mode 100644
index 0000000000..77fb786d98
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/CopyMem.asm
@@ -0,0 +1,84 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .xmm
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemCopyMem (
+; IN VOID *Destination,
+; IN VOID *Source,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
+InternalMemCopyMem PROC USES esi edi
+ mov esi, [esp + 16] ; esi <- Source
+ mov edi, [esp + 12] ; edi <- Destination
+ mov edx, [esp + 20] ; edx <- Count
+ lea eax, [esi + edx - 1] ; eax <- End of Source
+ cmp esi, edi
+ jae @F
+ cmp eax, edi ; Overlapped?
+ jae @CopyBackward ; Copy backward if overlapped
+@@:
+ xor ecx, ecx
+ sub ecx, edi
+ and ecx, 15 ; ecx + edi aligns on 16-byte boundary
+ jz @F
+ cmp ecx, edx
+ cmova ecx, edx
+ sub edx, ecx ; edx <- remaining bytes to copy
+ rep movsb
+@@:
+ mov ecx, edx
+ and edx, 15
+ shr ecx, 4 ; ecx <- # of DQwords to copy
+ jz @CopyBytes
+ add esp, -16
+ movdqu [esp], xmm0 ; save xmm0
+@@:
+ movdqu xmm0, [esi] ; esi may not be 16-bytes aligned
+ movntdq [edi], xmm0 ; edi should be 16-bytes aligned
+ add esi, 16
+ add edi, 16
+ loop @B
+ mfence
+ movdqu xmm0, [esp] ; restore xmm0
+ add esp, 16 ; stack cleanup
+ jmp @CopyBytes
+@CopyBackward:
+ mov esi, eax ; esi <- Last byte in Source
+ lea edi, [edi + edx - 1] ; edi <- Last byte in Destination
+ std
+@CopyBytes:
+ mov ecx, edx
+ rep movsb
+ cld
+ mov eax, [esp + 12] ; eax <- Destination as return value
+ ret
+InternalMemCopyMem ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.S
new file mode 100644
index 0000000000..5e65b9667a
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.S
@@ -0,0 +1,50 @@
+#------------------------------------------------------------------------------
+#
+# 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
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemScanMem16
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem16 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT16 Value
+# );
+#------------------------------------------------------------------------------
+_InternalMemScanMem16:
+ push %edi
+ movl 12(%esp), %ecx
+ movl 8(%esp), %edi
+ movl 16(%esp), %eax
+ repne scasw
+ leal -2(%edi), %eax
+ cmovnz %ecx, %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.asm
new file mode 100644
index 0000000000..57fab61b77
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem16.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:
+;
+; ScanMem16.Asm
+;
+; Abstract:
+;
+; ScanMem16 function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances share the same version of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem16 (
+; IN CONST VOID *Buffer,
+; IN UINTN Length,
+; IN UINT16 Value
+; );
+;------------------------------------------------------------------------------
+InternalMemScanMem16 PROC USES edi
+ mov ecx, [esp + 12]
+ mov edi, [esp + 8]
+ mov eax, [esp + 16]
+ repne scasw
+ lea eax, [edi - 2]
+ cmovnz eax, ecx
+ ret
+InternalMemScanMem16 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.S
new file mode 100644
index 0000000000..5d46ed2bc1
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.S
@@ -0,0 +1,50 @@
+#------------------------------------------------------------------------------
+#
+# 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
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemScanMem32
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem32 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT32 Value
+# );
+#------------------------------------------------------------------------------
+_InternalMemScanMem32:
+ push %edi
+ movl 12(%esp), %ecx
+ movl 8(%esp), %edi
+ movl 16(%esp), %eax
+ repne scasl
+ leal -4(%edi), %eax
+ cmovnz %ecx, %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.asm
new file mode 100644
index 0000000000..6ac857ce16
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem32.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:
+;
+; ScanMem32.Asm
+;
+; Abstract:
+;
+; ScanMem32 function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances share the same version of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem32 (
+; IN CONST VOID *Buffer,
+; IN UINTN Length,
+; IN UINT32 Value
+; );
+;------------------------------------------------------------------------------
+InternalMemScanMem32 PROC USES edi
+ mov ecx, [esp + 12]
+ mov edi, [esp + 8]
+ mov eax, [esp + 16]
+ repne scasd
+ lea eax, [edi - 4]
+ cmovnz eax, ecx
+ ret
+InternalMemScanMem32 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.S
new file mode 100644
index 0000000000..3ba69650ab
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.S
@@ -0,0 +1,59 @@
+#------------------------------------------------------------------------------
+#
+# 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
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemScanMem64
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem64 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT64 Value
+# );
+#------------------------------------------------------------------------------
+_InternalMemScanMem64:
+ push %edi
+ movl 12(%esp), %ecx
+ movl 16(%esp), %eax
+ movl 20(%esp), %edx
+ movl 8(%esp), %edi
+L0:
+ cmpl (%edi), %eax
+ leal 8(%edi), %edi
+ loopne L0
+ jne L1
+ cmpl -4(%edi), %edx
+ jecxz L1
+ jne L0
+L1:
+ leal -8(%edi), %eax
+ cmovne %ecx, %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.asm
new file mode 100644
index 0000000000..ca54f13738
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem64.asm
@@ -0,0 +1,62 @@
+;------------------------------------------------------------------------------
+;
+; 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
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem64 (
+; IN CONST VOID *Buffer,
+; IN UINTN Length,
+; IN UINT64 Value
+; );
+;------------------------------------------------------------------------------
+InternalMemScanMem64 PROC USES edi
+ mov ecx, [esp + 12]
+ mov eax, [esp + 16]
+ mov edx, [esp + 20]
+ mov edi, [esp + 8]
+@@:
+ cmp eax, [edi]
+ lea edi, [edi + 8]
+ loopne @B
+ jne @F
+ cmp edx, [edi - 4]
+ jecxz @F
+ jne @B
+@@:
+ lea eax, [edi - 8]
+ cmovne eax, ecx
+ ret
+InternalMemScanMem64 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.S
new file mode 100644
index 0000000000..7a834a5635
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.S
@@ -0,0 +1,50 @@
+#------------------------------------------------------------------------------
+#
+# 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
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemScanMem8
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem8 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT8 Value
+# );
+#------------------------------------------------------------------------------
+_InternalMemScanMem8:
+ push %edi
+ movl 12(%esp), %ecx
+ movl 8(%esp), %edi
+ movb 16(%esp), %al
+ repne scasb
+ leal -1(%edi), %eax
+ cmovnz %ecx, %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.asm
new file mode 100644
index 0000000000..a3f65b64fa
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ScanMem8.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:
+;
+; ScanMem8.Asm
+;
+; Abstract:
+;
+; ScanMem8 function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances share the same version of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem8 (
+; IN CONST VOID *Buffer,
+; IN UINTN Length,
+; IN UINT8 Value
+; );
+;------------------------------------------------------------------------------
+InternalMemScanMem8 PROC USES edi
+ mov ecx, [esp + 12]
+ mov edi, [esp + 8]
+ mov al, [esp + 16]
+ repne scasb
+ lea eax, [edi - 1]
+ cmovnz eax, ecx
+ ret
+InternalMemScanMem8 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.S
new file mode 100644
index 0000000000..406a8f8d1a
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.S
@@ -0,0 +1,55 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#------------------------------------------------------------------------------
+
+ .386:
+ .code:
+
+.globl _InternalMemSetMem
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemSetMem (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT8 Value
+# )
+#------------------------------------------------------------------------------
+_InternalMemSetMem:
+ push %edi
+ movl 12(%esp),%ecx
+ movl 16(%esp),%al
+ movb %ah, %al
+ shrd %edx, %eax, $16
+ shld %eax, %edx, $16
+ movl %edx, %ecx
+ movl 8(%esp),%edi
+ shr $2, %ecx
+ rep
+ stosd
+ movl %ecx, %edx
+ andl $3, %ecx
+ rep
+ stosb
+ movl 8(%esp),%eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.asm
new file mode 100644
index 0000000000..0d166e1789
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.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:
+;
+; SetMem.Asm
+;
+; Abstract:
+;
+; SetMem function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ .386
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT8 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem PROC USES edi
+ mov ecx, [esp + 12]
+ mov al, [esp + 16]
+ mov ah, al
+ shrd edx, eax, 16
+ shld eax, edx, 16
+ mov edx, ecx
+ mov edi, [esp + 8]
+ shr ecx, 2
+ rep stosd
+ mov ecx, edx
+ and ecx, 3
+ rep stosb
+ mov eax, [esp + 8]
+ ret
+InternalMemSetMem ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.S
new file mode 100644
index 0000000000..6e7c136222
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.S
@@ -0,0 +1,43 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemSetMem16
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemSetMem16 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT16 Value
+# )
+#------------------------------------------------------------------------------
+_InternalMemSetMem16:
+ push %edi
+ movl 16(%esp), %eax
+ movl 8(%esp), %edi
+ movl 12(%esp), %ecx
+ rep
+ stosw
+ movl 8(%esp), %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.asm
new file mode 100644
index 0000000000..7f4a8955f9
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem16.asm
@@ -0,0 +1,45 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .386
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem16 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT16 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem16 PROC USES edi
+ mov eax, [esp + 16]
+ mov edi, [esp + 8]
+ mov ecx, [esp + 12]
+ rep stosw
+ mov eax, [esp + 8]
+ ret
+InternalMemSetMem16 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.S
new file mode 100644
index 0000000000..455af20573
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.S
@@ -0,0 +1,43 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemSetMem32
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemSetMem32 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT32 Value
+# )
+#------------------------------------------------------------------------------
+_InternalMemSetMem32:
+ push %edi
+ movl 16(%esp),%eax
+ movl 8(%esp),%edi
+ movl 12(%esp),%ecx
+ rep
+ stosl
+ movl 8(%esp),%eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.asm
new file mode 100644
index 0000000000..5876f4a741
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem32.asm
@@ -0,0 +1,45 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .386
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem32 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT32 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem32 PROC USES edi
+ mov eax, [esp + 16]
+ mov edi, [esp + 8]
+ mov ecx, [esp + 12]
+ rep stosd
+ mov eax, [esp + 8]
+ ret
+InternalMemSetMem32 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.S
new file mode 100644
index 0000000000..b4afff0fd4
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.S
@@ -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:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemSetMem64
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemSetMem64 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT64 Value
+# )
+#------------------------------------------------------------------------------
+_InternalMemSetMem64:
+ push %edi
+ movl 12(%esp), %ecx
+ movl 16(%esp), %eax
+ movl 20(%esp), %edx
+ movl 8(%esp), %edi
+L0:
+ mov %eax, -8(%edi, %ecx, 8)
+ mov %edx, -4(%edi, %ecx, 8)
+ loop L0
+ movl %edi, %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.asm
new file mode 100644
index 0000000000..687c18f312
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem64.asm
@@ -0,0 +1,49 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .386
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem64 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT64 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem64 PROC USES edi
+ mov ecx, [esp + 12]
+ mov eax, [esp + 16]
+ mov edx, [esp + 20]
+ mov edi, [esp + 8]
+@@:
+ mov [edi + ecx*8 - 8], eax
+ mov [edi + ecx*8 - 4], edx
+ loop @B
+ mov eax, edi
+ ret
+InternalMemSetMem64 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.S b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.S
new file mode 100644
index 0000000000..8465d7cf65
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.S
@@ -0,0 +1,49 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemZeroMem
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemZeroMem (
+# IN VOID *Buffer,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+_InternalMemZeroMem:
+ push %edi
+ xorl %eax,%eax
+ movl 8(%esp),%edi
+ movl 12(%esp),%ecx
+ movl %ecx,%edx
+ shrl $2,%ecx
+ andl $3,%edx
+ pushl %edi
+ rep
+ stosl
+ movl %edx,%ecx
+ rep
+ stosb
+ popl %eax
+ pop %edi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.asm
new file mode 100644
index 0000000000..b3b8b5d1f1
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Ia32/ZeroMem.asm
@@ -0,0 +1,50 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .386
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemZeroMem (
+; IN VOID *Buffer,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
+InternalMemZeroMem PROC USES edi
+ xor eax, eax
+ mov edi, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edx, ecx
+ shr ecx, 2
+ and edx, 3
+ push edi
+ rep stosd
+ mov ecx, edx
+ rep stosb
+ pop eax
+ ret
+InternalMemZeroMem ENDP
+
+ END