From b204f668cd2080961f997c06d4d0d0b312264b2f Mon Sep 17 00:00:00 2001 From: Jordan Justen Date: Mon, 30 May 2016 18:51:59 -0700 Subject: MdePkg BaseLib: Convert Ia32/DisableCache.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert Ia32/DisableCache.asm to Ia32/DisableCache.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen --- MdePkg/Library/BaseLib/Ia32/DisableCache.nasm | 42 +++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 MdePkg/Library/BaseLib/Ia32/DisableCache.nasm (limited to 'MdePkg/Library/BaseLib/Ia32') diff --git a/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm b/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm new file mode 100644 index 0000000000..7b384d2035 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm @@ -0,0 +1,42 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006 - 2008, 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: +; +; 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: +; +;------------------------------------------------------------------------------ + + SECTION .text + +;------------------------------------------------------------------------------ +; VOID +; EFIAPI +; AsmDisableCache ( +; VOID +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmDisableCache) +ASM_PFX(AsmDisableCache): + mov eax, cr0 + bts eax, 30 + btr eax, 29 + mov cr0, eax + wbinvd + ret + -- cgit v1.2.3