diff options
| author | Jordan Justen <jordan.l.justen@intel.com> | 2016-05-30 18:51:57 -0700 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2016-06-28 09:49:03 +0800 |
| commit | 41aa07b39c5acd71e57a97e5597828d7c0ff705f (patch) | |
| tree | 422fad410e0313976bd1b4db4e2388dbbc3d70eb | |
| parent | cb1ff3808cc579ef9dda9816f96e4d31107a9ad6 (diff) | |
| download | edk2-platforms-41aa07b39c5acd71e57a97e5597828d7c0ff705f.tar.xz | |
MdePkg BaseLib: Convert Ia32/ReadDr4.asm to NASM
The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/ReadDr4.asm to Ia32/ReadDr4.nasm
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
| -rw-r--r-- | MdePkg/Library/BaseLib/BaseLib.inf | 1 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/ReadDr4.nasm | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index f57b6cd88f..8af7bdb349 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -273,6 +273,7 @@ Ia32/ReadDr6.asm | INTEL
Ia32/ReadDr5.nasm| INTEL
Ia32/ReadDr5.asm | INTEL
+ Ia32/ReadDr4.nasm| INTEL
Ia32/ReadDr4.asm | INTEL
Ia32/ReadDr3.asm | INTEL
Ia32/ReadDr2.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/Ia32/ReadDr4.nasm b/MdePkg/Library/BaseLib/Ia32/ReadDr4.nasm new file mode 100644 index 0000000000..478c50e47b --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/ReadDr4.nasm @@ -0,0 +1,44 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, 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:
+;
+; ReadDr4.Asm
+;
+; Abstract:
+;
+; AsmReadDr4 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINTN
+; EFIAPI
+; AsmReadDr4 (
+; VOID
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmReadDr4)
+ASM_PFX(AsmReadDr4):
+ ;
+ ; DR4 is alias to DR6 only if DE (in CR4) is cleared. Otherwise, reading
+ ; this register will cause a #UD exception.
+ ;
+ ; MS assembler doesn't support this instruction since no one would use it
+ ; under normal circustances. Here opcode is used.
+ ;
+ DB 0xf, 0x21, 0xe0
+ ret
+
|