summaryrefslogtreecommitdiff
path: root/OldMdePkg/Library/BaseMemoryLibSse2/x64
diff options
context:
space:
mode:
Diffstat (limited to 'OldMdePkg/Library/BaseMemoryLibSse2/x64')
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm52
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm79
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm51
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm51
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm51
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm51
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm69
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm67
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm66
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm59
-rw-r--r--OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm63
11 files changed, 0 insertions, 659 deletions
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm
deleted file mode 100644
index 554bc07c64..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm
+++ /dev/null
@@ -1,52 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm
deleted file mode 100644
index 03ffe0c00f..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm
+++ /dev/null
@@ -1,79 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm
deleted file mode 100644
index a2538c2cca..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm
+++ /dev/null
@@ -1,51 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm
deleted file mode 100644
index e0523d8547..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm
+++ /dev/null
@@ -1,51 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm
deleted file mode 100644
index 0e7e9c782f..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm
+++ /dev/null
@@ -1,51 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm
deleted file mode 100644
index 879273f960..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm
+++ /dev/null
@@ -1,51 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm
deleted file mode 100644
index 25cfcf0d12..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm
+++ /dev/null
@@ -1,69 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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 *
-; InternalMemSetMem (
-; IN VOID *Buffer,
-; IN UINTN Count,
-; IN UINT8 Value
-; )
-;------------------------------------------------------------------------------
-InternalMemSetMem PROC USES rdi
- mov rdi, rcx ; rdi <- Buffer
- mov al, r8b ; al <- Value
- mov r9, rdi ; r9 <- Buffer as return value
- xor rcx, rcx
- sub rcx, rdi
- and rcx, 15 ; rcx + rdi aligns on 16-byte boundary
- jz @F
- cmp rcx, rdx
- cmova rcx, rdx
- sub rdx, rcx
- rep stosb
-@@:
- mov rcx, rdx
- and rdx, 15
- shr rcx, 4
- jz @SetBytes
- mov ah, al ; ax <- Value repeats twice
- movdqa [rsp + 10h], xmm0 ; save xmm0
- movd xmm0, eax ; xmm0[0..16] <- Value repeats twice
- pshuflw xmm0, xmm0, 0 ; xmm0[0..63] <- Value repeats 8 times
- movlhps xmm0, xmm0 ; xmm0 <- Value repeats 16 times
-@@:
- movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
- add rdi, 16
- loop @B
- mfence
- movdqa xmm0, [rsp + 10h] ; restore xmm0
-@SetBytes:
- mov ecx, edx ; high 32 bits of rcx are always zero
- rep stosb
- mov rax, r9 ; rax <- Return value
- ret
-InternalMemSetMem ENDP
-
- END
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm
deleted file mode 100644
index 77b8cf43aa..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm
+++ /dev/null
@@ -1,67 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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 *
-; InternalMemSetMem16 (
-; IN VOID *Buffer,
-; IN UINTN Count,
-; IN UINT16 Value
-; )
-;------------------------------------------------------------------------------
-InternalMemSetMem16 PROC USES rdi
- mov rdi, rcx
- mov r9, rdi
- xor rcx, rcx
- sub rcx, rdi
- and rcx, 15
- mov rax, r8
- jz @F
- shr rcx, 1
- cmp rcx, rdx
- cmova rcx, rdx
- sub rdx, rcx
- rep stosw
-@@:
- mov rcx, rdx
- and edx, 7
- shr rcx, 3
- jz @SetWords
- movd xmm0, eax
- pshuflw xmm0, xmm0, 0
- movlhps xmm0, xmm0
-@@:
- movntdq [rdi], xmm0
- add rdi, 16
- loop @B
- mfence
-@SetWords:
- mov ecx, edx
- rep stosw
- mov rax, r9
- ret
-InternalMemSetMem16 ENDP
-
- END
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm
deleted file mode 100644
index eba29bb88d..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm
+++ /dev/null
@@ -1,66 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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 UINT8 Value
-; )
-;------------------------------------------------------------------------------
-InternalMemSetMem32 PROC USES rdi
- mov rdi, rcx
- mov r9, rdi
- xor rcx, rcx
- sub rcx, rdi
- and rcx, 15
- mov rax, r8
- jz @F
- shr rcx, 2
- cmp rcx, rdx
- cmova rcx, rdx
- sub rdx, rcx
- rep stosd
-@@:
- mov rcx, rdx
- and edx, 3
- shr rcx, 2
- jz @SetDwords
- movd xmm0, eax
- pshufd xmm0, xmm0, 0
-@@:
- movntdq [rdi], xmm0
- add rdi, 16
- loop @B
- mfence
-@SetDwords:
- mov ecx, edx
- rep stosd
- mov rax, r9
- ret
-InternalMemSetMem32 ENDP
-
- END
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm
deleted file mode 100644
index a26b9412d4..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm
+++ /dev/null
@@ -1,59 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
- mov rax, rcx ; rax <- Buffer
- xchg rcx, rdx ; rcx <- Count & rdx <- Buffer
- test dl, 8
- movd xmm0, r8
- jz @F
- mov [rdx], r8
- add rdx, 8
- dec rcx
-@@:
- shr rcx, 1
- jz @SetQwords
- movlhps xmm0, xmm0
-@@:
- movntdq [rdx], xmm0
- lea rdx, [rdx + 16]
- loop @B
- mfence
-@SetQwords:
- jnc @F
- mov [rdx], r8
-@@:
- ret
-InternalMemSetMem64 ENDP
-
- END
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm
deleted file mode 100644
index 7eebd3a8ef..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm
+++ /dev/null
@@ -1,63 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; 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
- xor rcx, rcx
- xor eax, eax
- sub rcx, rdi
- and rcx, 15
- mov r8, rdi
- jz @F
- cmp rcx, rdx
- cmova rcx, rdx
- sub rdx, rcx
- rep stosb
-@@:
- mov rcx, rdx
- and edx, 15
- shr rcx, 4
- jz @ZeroBytes
- pxor xmm0, xmm0
-@@:
- movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
- add rdi, 16
- loop @B
- mfence
-@ZeroBytes:
- mov ecx, edx
- rep stosb
- mov rax, r8
- ret
-InternalMemZeroMem ENDP
-
- END