mirror of https://github.com/acidanthera/audk.git
MdePkg BaseMemoryLibMmx: Convert X64/SetMem32.asm to NASM
The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/SetMem32.asm to X64/SetMem32.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
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@ -110,6 +110,7 @@
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X64/CompareMem.asm
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X64/SetMem64.nasm
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X64/SetMem64.asm
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X64/SetMem32.nasm
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X64/SetMem32.asm
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X64/SetMem16.asm
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X64/SetMem.asm
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@ -126,6 +127,7 @@
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X64/CompareMem.S
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X64/SetMem64.nasm
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X64/SetMem64.S
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X64/SetMem32.nasm
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X64/SetMem32.S
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X64/SetMem16.S
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X64/ZeroMem.nasm
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@ -0,0 +1,53 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php.
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;
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; Module Name:
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;
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; SetMem32.nasm
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;
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; Abstract:
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;
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; SetMem32 function
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;
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; Notes:
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;
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;------------------------------------------------------------------------------
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; VOID *
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; InternalMemSetMem32 (
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; IN VOID *Buffer,
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; IN UINTN Count,
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; IN UINT32 Value
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; )
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMemSetMem32)
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ASM_PFX(InternalMemSetMem32):
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DB 0x49, 0xf, 0x6e, 0xc0 ; movd mm0, r8 (Value)
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mov rax, rcx ; rax <- Buffer
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xchg rcx, rdx ; rcx <- Count rdx <- Buffer
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shr rcx, 1 ; rcx <- # of qwords to set
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jz @SetDwords
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DB 0xf, 0x70, 0xC0, 0x44 ; pshufw mm0, mm0, 44h
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.0:
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DB 0xf, 0xe7, 0x2 ; movntq [rdx], mm0
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lea rdx, [rdx + 8] ; use "lea" to avoid flag changes
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loop .0
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mfence
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@SetDwords:
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jnc .1
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DB 0xf, 0x7e, 0x2 ; movd [rdx], mm0
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.1:
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ret
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