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 <jordan.l.justen@intel.com>
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index 61b49a6..7d6bb07 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -346,6 +346,7 @@
Ia32/EnablePaging64.asm | INTEL
Ia32/EnableCache.nasm| INTEL
Ia32/EnableCache.asm | INTEL
+ Ia32/DisableCache.nasm| INTEL
Ia32/DisableCache.asm | INTEL
Ia32/RdRand.nasm| INTEL
Ia32/RdRand.asm | INTEL
@@ -398,6 +399,7 @@
Ia32/LShiftU64.S | GCC
Ia32/EnableCache.nasm| GCC
Ia32/EnableCache.S | GCC
+ Ia32/DisableCache.nasm| GCC
Ia32/DisableCache.S | GCC
Ia32/RdRand.nasm| GCC
Ia32/RdRand.S | GCC
diff --git a/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm b/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm
new file mode 100644
index 0000000..7b384d2
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/DisableCache.nasm
@@ -0,0 +1,42 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ 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
+
