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;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; WriteMsr64.Asm
;
; Abstract:
;
; AsmWriteMsr64 function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; UINT64
; EFIAPI
; AsmWriteMsr64 (
; IN UINT32 Index,
; IN UINT64 Value
; );
;------------------------------------------------------------------------------
global ASM_PFX(AsmWriteMsr64)
ASM_PFX(AsmWriteMsr64):
mov rax, rdx ; meanwhile, rax <- return value
shr rdx, 0x20 ; edx:eax contains the value to write
wrmsr
ret
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