1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4; This program and the accompanying materials
5; are licensed and made available under the terms and conditions of the BSD License
6; which accompanies this distribution.  The full text of the license may be found at
7; http://opensource.org/licenses/bsd-license.php.
8;
9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11;
12; Module Name:
13;
14;   ReadDr4.Asm
15;
16; Abstract:
17;
18;   AsmReadDr4 function
19;
20; Notes:
21;
22;------------------------------------------------------------------------------
23
24    .code
25
26;------------------------------------------------------------------------------
27; UINTN
28; EFIAPI
29; AsmReadDr4 (
30;   VOID
31;   );
32;------------------------------------------------------------------------------
33AsmReadDr4  PROC
34    ;
35    ; There's no obvious reason to access this register, since it's aliased to
36    ; DR7 when DE=0 or an exception generated when DE=1
37    ;
38    DB      0fh, 21h, 0e0h
39    ret
40AsmReadDr4  ENDP
41
42    END
43