diff options
| author | Jordan Justen <jordan.l.justen@intel.com> | 2016-05-30 18:52:08 -0700 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2016-06-28 09:50:55 +0800 |
| commit | ff98bc66780d16dff9306a57b1135a15816e49ae (patch) | |
| tree | 36718d6d6b3abe4b3d84702d30eae80b50799d3c /MdePkg/Library | |
| parent | 874eb39c8ed958ed7a9ed7ebad1657e472ec0784 (diff) | |
| download | edk2-platforms-ff98bc66780d16dff9306a57b1135a15816e49ae.tar.xz | |
MdePkg BaseMemoryLibOptDxe: Convert X64/SetMem.asm to NASM
The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
X64/SetMem.asm to X64/SetMem.nasm
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf | 1 | ||||
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.nasm | 62 |
2 files changed, 63 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf index 1e05d05dff..b5e750a7c8 100644 --- a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf +++ b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf @@ -119,6 +119,7 @@ X64/SetMem16.nasm
X64/SetMem16.asm
X64/SetMem16.S
+ X64/SetMem.nasm
X64/SetMem.asm
X64/SetMem.S
X64/CopyMem.asm
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.nasm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.nasm new file mode 100644 index 0000000000..0c4b65177f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem.nasm @@ -0,0 +1,62 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemSetMem (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT8 Value
+; )
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMemSetMem)
+ASM_PFX(InternalMemSetMem):
+ push rdi
+ push rbx
+ push rcx ; push Buffer
+ mov rax, r8 ; rax = Value
+ and rax, 0xff ; rax = lower 8 bits of r8, upper 56 bits are 0
+ mov ah, al ; ah = al
+ mov bx, ax ; bx = ax
+ shl rax, 0x10 ; rax = ax << 16
+ mov ax, bx ; ax = bx
+ mov rbx, rax ; ebx = eax
+ shl rax, 0x20 ; 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
+ pop rbx
+ pop rdi
+ ret
+
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