/** @file | |
AsmReadDr5 function | |
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
/** | |
Reads the current value of Debug Register 5 (DR5). | |
Reads and returns the current value of DR5. 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 5 (DR5). | |
**/ | |
UINTN | |
EFIAPI | |
AsmReadDr5 ( | |
VOID | |
) | |
{ | |
__asm { | |
_emit 0x0f | |
_emit 0x21 | |
_emit 0xe8 | |
} | |
} |