/** @file | |
AsmWriteDr5 function | |
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
/** | |
Writes a value to Debug Register 5 (DR5). | |
Writes and returns a new value to DR5. This function is only available on | |
IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64. | |
@param Value The value to write to Dr5. | |
@return The value written to Debug Register 5 (DR5). | |
**/ | |
UINTN | |
EFIAPI | |
AsmWriteDr5 ( | |
IN UINTN Value | |
) | |
{ | |
_asm { | |
mov eax, Value | |
_emit 0x0f // mov dr5, eax | |
_emit 0x23 | |
_emit 0xe8 | |
} | |
} |