Files
system76-edk2/MdePkg/Library/BaseLib/X64/ReadDr5.nasm
Jason d3febfd9ad MdePkg: Replace Opcode with the corresponding instructions.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3790

Replace Opcode with the corresponding instructions.
The code changes have been verified with CompareBuild.py tool, which
can be used to compare the results of two different EDK II builds to
determine if they generate the same binaries.
(tool link: https://github.com/mdkinney/edk2/tree/sandbox/CompareBuild)

Signed-off-by: Jason Lou <yun.lou@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
2022-03-01 01:45:47 +00:00

37 lines
875 B
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; ReadDr5.Asm
;
; Abstract:
;
; AsmReadDr5 function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; UINTN
; EFIAPI
; AsmReadDr5 (
; VOID
; );
;------------------------------------------------------------------------------
global ASM_PFX(AsmReadDr5)
ASM_PFX(AsmReadDr5):
;
; 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
;
mov rax, dr5
ret