diff options
author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-25 03:13:50 +0000 |
---|---|---|
committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-25 03:13:50 +0000 |
commit | a0bdf7588a4896aade0a4194722324a1b2cc2b8f (patch) | |
tree | 55a2ff5a0f579b35f1290a9adb13aefdf641310b /MdePkg/Library/BaseMemoryLibOptDxe/X64 | |
parent | b26978d3dd8989962b8c806b78473d9049ead048 (diff) | |
download | edk2-platforms-a0bdf7588a4896aade0a4194722324a1b2cc2b8f.tar.xz |
Change name.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5981 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibOptDxe/X64')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.asm | 54 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/CopyMem.asm | 79 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem16.asm | 53 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem32.asm | 53 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem64.asm | 53 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem8.asm | 53 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.asm | 58 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem16.asm | 45 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem32.asm | 45 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.asm | 44 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.asm | 48 |
11 files changed, 585 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.asm new file mode 100644 index 0000000000..7446a052e0 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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 contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ .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
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/CopyMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/CopyMem.asm new file mode 100644 index 0000000000..03ffe0c00f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/CopyMem.asm @@ -0,0 +1,79 @@ +;------------------------------------------------------------------------------
+;
+; 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 (
+; IN VOID *Destination,
+; IN VOID *Source,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
+InternalMemCopyMem PROC USES rsi rdi
+ mov rsi, rdx ; rsi <- Source
+ mov rdi, rcx ; rdi <- Destination
+ lea r9, [rsi + r8 - 1] ; r9 <- Last byte of Source
+ cmp rsi, rdi
+ mov rax, rdi ; rax <- Destination as return value
+ jae @F ; Copy forward if Source > Destination
+ cmp r9, rdi ; Overlapped?
+ jae @CopyBackward ; Copy backward if overlapped
+@@:
+ xor rcx, rcx
+ sub rcx, rdi ; rcx <- -rdi
+ and rcx, 15 ; rcx + rsi should be 16 bytes aligned
+ jz @F ; skip if rcx == 0
+ cmp rcx, r8
+ cmova rcx, r8
+ sub r8, rcx
+ rep movsb
+@@:
+ mov rcx, r8
+ and r8, 15
+ shr rcx, 4 ; rcx <- # of DQwords to copy
+ jz @CopyBytes
+ movdqa [rsp + 18h], xmm0 ; save xmm0 on stack
+@@:
+ movdqu xmm0, [rsi] ; rsi may not be 16-byte aligned
+ movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
+ add rsi, 16
+ add rdi, 16
+ loop @B
+ mfence
+ movdqa xmm0, [rsp + 18h] ; restore xmm0
+ jmp @CopyBytes ; copy remaining bytes
+@CopyBackward:
+ mov rsi, r9 ; rsi <- Last byte of Source
+ lea rdi, [rdi + r8 - 1] ; rdi <- Last byte of Destination
+ std
+@CopyBytes:
+ mov rcx, r8
+ rep movsb
+ cld
+ ret
+InternalMemCopyMem ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem16.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem16.asm new file mode 100644 index 0000000000..0871a4b0f5 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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 contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ .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
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem32.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem32.asm new file mode 100644 index 0000000000..53a33bafb2 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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 contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ .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
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem64.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem64.asm new file mode 100644 index 0000000000..71f85a1ab7 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem64.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:
+;
+; ScanMem64.Asm
+;
+; Abstract:
+;
+; ScanMem64 function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ .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
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem8.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ScanMem8.asm new file mode 100644 index 0000000000..39adb01b7f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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 contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ .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
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.asm new file mode 100644 index 0000000000..c94b6b5703 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/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 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT8 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem PROC USES rdi rbx
+ push rcx ; push Buffer
+ mov rax, r8 ; rax = Value
+ and rax, 0ffh ; rax = lower 8 bits of r8, upper 56 bits are 0
+ mov ah, al ; ah = al
+ mov bx, ax ; bx = ax
+ shl rax, 10h ; rax = ax << 16
+ mov ax, bx ; ax = bx
+ mov rbx, rax ; ebx = eax
+ shl rax, 20h ; rax = rax << 32
+ or rax, rbx ; eax = ebx
+ mov rdi, rcx ; rdi = Buffer
+ mov rcx, rdx ; rcx = Count
+ shr rcx, 3 ; rcx = rcx / 8
+ cld
+ rep stosq
+ mov rcx, rdx ; rcx = rdx
+ and rcx, 7 ; rcx = rcx & 7
+ rep stosb
+ pop rax ; rax = Buffer
+ ret
+InternalMemSetMem ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem16.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem16.asm new file mode 100644 index 0000000000..68ff48821e --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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:
+;
+;------------------------------------------------------------------------------
+
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemSetMem16 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT16 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem16 PROC USES rdi
+ push rcx
+ mov rdi, rcx
+ mov rax, r8
+ xchg rcx, rdx
+ rep stosw
+ pop rax
+ ret
+InternalMemSetMem16 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem32.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem32.asm new file mode 100644 index 0000000000..c81c81f901 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/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:
+;
+;------------------------------------------------------------------------------
+
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemSetMem32 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT32 Value
+; );
+;------------------------------------------------------------------------------
+InternalMemSetMem32 PROC USES rdi
+ push rcx
+ mov rdi, rcx
+ mov rax, r8
+ xchg rcx, rdx
+ rep stosd
+ pop rax
+ ret
+InternalMemSetMem32 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.asm new file mode 100644 index 0000000000..282a86c239 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.asm @@ -0,0 +1,44 @@ +;------------------------------------------------------------------------------
+;
+; 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 USES rdi
+ push rcx
+ mov rdi, rcx
+ mov rax, r8
+ xchg rcx, rdx
+ rep stosq
+ pop rax
+ ret
+InternalMemSetMem64 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.asm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.asm new file mode 100644 index 0000000000..940864fba1 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.asm @@ -0,0 +1,48 @@ +;------------------------------------------------------------------------------
+;
+; 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
+ push rcx ; push Buffer
+ xor rax, rax ; rax = 0
+ mov rdi, rcx ; rdi = Buffer
+ mov rcx, rdx ; rcx = Count
+ shr rcx, 3 ; rcx = rcx / 8
+ and rdx, 7 ; rdx = rdx & 7
+ cld
+ rep stosq
+ mov rcx, rdx ; rcx = rdx
+ rep stosb
+ pop rax ; rax = Buffer
+ ret
+InternalMemZeroMem ENDP
+
+ END
|