MdePkg BaseLib: Convert X64/DisableCache.asm to NASM

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
X64/DisableCache.asm to X64/DisableCache.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Jordan Justen
2016-05-30 18:52:00 -07:00
committed by Liming Gao
parent a91d8309af
commit c1d8229575
2 changed files with 45 additions and 0 deletions

View File

@@ -0,0 +1,43 @@
;------------------------------------------------------------------------------
;
; 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:
;
; DisableCache.Asm
;
; Abstract:
;
; Set the CD bit of CR0 to 1, clear the NW bit of CR0 to 0, and flush all caches with a
; WBINVD instruction.
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; VOID
; EFIAPI
; AsmDisableCache (
; VOID
; );
;------------------------------------------------------------------------------
global ASM_PFX(AsmDisableCache)
ASM_PFX(AsmDisableCache):
mov rax, cr0
bts rax, 30
btr rax, 29
mov cr0, rax
wbinvd
ret