CloverBootloader/MdePkg/Library/BaseLib/X64/WriteDr5.nasm

38 lines
919 B
NASM
Raw Normal View History

;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; WriteDr5.Asm
;
; Abstract:
;
; AsmWriteDr5 function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; UINTN
; EFIAPI
; AsmWriteDr5 (
; IN UINTN Value
; );
;------------------------------------------------------------------------------
global ASM_PFX(AsmWriteDr5)
ASM_PFX(AsmWriteDr5):
;
; There's no obvious reason to access this register, since it's aliased to
; DR7 when DE=0 or an exception generated when DE=1
;
DB 0xf, 0x23, 0xe9
mov rax, rcx
ret