mirror of https://github.com/acidanthera/audk.git
53 lines
1.6 KiB
NASM
53 lines
1.6 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;*
|
||
|
|
;* Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
|
||
|
|
;* This program and the accompanying materials
|
||
|
|
;* are licensed and made available under the terms and conditions of the BSD License
|
||
|
|
;* which accompanies this distribution. The full text of the license may be found at
|
||
|
|
;* http://opensource.org/licenses/bsd-license.php
|
||
|
|
;*
|
||
|
|
;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
;*
|
||
|
|
;* CpuAsm.nasm
|
||
|
|
;*
|
||
|
|
;* Abstract:
|
||
|
|
;*
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
DEFAULT REL
|
||
|
|
SECTION .text
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; VOID
|
||
|
|
; SetCodeSelector (
|
||
|
|
; UINT16 Selector
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
global ASM_PFX(SetCodeSelector)
|
||
|
|
ASM_PFX(SetCodeSelector):
|
||
|
|
sub rsp, 0x10
|
||
|
|
lea rax, [setCodeSelectorLongJump]
|
||
|
|
mov [rsp], rax
|
||
|
|
mov [rsp+4], cx
|
||
|
|
jmp dword far [rsp]
|
||
|
|
setCodeSelectorLongJump:
|
||
|
|
add rsp, 0x10
|
||
|
|
ret
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; VOID
|
||
|
|
; SetDataSelectors (
|
||
|
|
; UINT16 Selector
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
global ASM_PFX(SetDataSelectors)
|
||
|
|
ASM_PFX(SetDataSelectors):
|
||
|
|
o16 mov ss, cx
|
||
|
|
o16 mov ds, cx
|
||
|
|
o16 mov es, cx
|
||
|
|
o16 mov fs, cx
|
||
|
|
o16 mov gs, cx
|
||
|
|
ret
|
||
|
|
|