mirror of https://github.com/acidanthera/audk.git
39 lines
921 B
C
39 lines
921 B
C
/** @file
|
|
AsmReadDr3 function
|
|
|
|
Copyright (c) 2006 - 2008, Intel Corporation<BR>
|
|
All rights reserved. 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.
|
|
|
|
**/
|
|
|
|
|
|
|
|
|
|
/**
|
|
Reads the current value of Debug Register 3 (DR3).
|
|
|
|
Reads and returns the current value of DR3. 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 3 (DR3).
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
AsmReadDr3 (
|
|
VOID
|
|
)
|
|
{
|
|
__asm {
|
|
mov eax, dr3
|
|
}
|
|
}
|
|
|