ReadDr4.asm revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi;------------------------------------------------------------------------------
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; This program and the accompanying materials
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; are licensed and made available under the terms and conditions of the BSD License
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; which accompanies this distribution. The full text of the license may be found at
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; http://opensource.org/licenses/bsd-license.php.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; Module Name:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; AsmReadDr4 function
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi;------------------------------------------------------------------------------
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi .model flat,C
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi;------------------------------------------------------------------------------
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi; AsmReadDr4 (
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi;------------------------------------------------------------------------------
d14abf155341d55053c76eeec58b787a456b753bRobert MustacchiAsmReadDr4 PROC
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ; DR4 is alias to DR6 only if DE (in CR4) is cleared. Otherwise, reading
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ; this register will cause a #UD exception.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ; MS assembler doesn't support this instruction since no one would use it
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ; under normal circustances. Here opcode is used.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi DB 0fh, 21h, 0e0h
d14abf155341d55053c76eeec58b787a456b753bRobert MustacchiAsmReadDr4 ENDP