ReadDr4.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
AsmReadDr4 function
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
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
/**
Reads the current value of Debug Register 4 (DR4).
Reads and returns the current value of DR4. This function is only available
on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on
x64.
@return The value of Debug Register 4 (DR4).
**/
)
{
__asm {
_emit 0x0f
_emit 0x21
_emit 0xe0
}
}