mirror of https://github.com/acidanthera/audk.git
58 lines
1.6 KiB
NASM
58 lines
1.6 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; Copyright (c) 2006, Intel Corporation
|
||
|
|
; All rights reserved. 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.
|
||
|
|
;
|
||
|
|
; Module Name:
|
||
|
|
;
|
||
|
|
; EnablePaging32.Asm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; AsmEnablePaging32 function
|
||
|
|
;
|
||
|
|
; Notes:
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
.386
|
||
|
|
.model flat,C
|
||
|
|
.code
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; VOID
|
||
|
|
; EFIAPI
|
||
|
|
; InternalX86EnablePaging32 (
|
||
|
|
; IN SWITCH_STACK_ENTRY_POINT EntryPoint,
|
||
|
|
; IN VOID *Context1, OPTIONAL
|
||
|
|
; IN VOID *Context2, OPTIONAL
|
||
|
|
; IN VOID *NewStack
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
InternalX86EnablePaging32 PROC
|
||
|
|
mov ebx, [esp + 4]
|
||
|
|
mov ecx, [esp + 8]
|
||
|
|
mov edx, [esp + 12]
|
||
|
|
pushfd
|
||
|
|
pop edi
|
||
|
|
cli
|
||
|
|
mov eax, cr0
|
||
|
|
bts eax, 31
|
||
|
|
mov esp, [esp + 16]
|
||
|
|
mov cr0, eax
|
||
|
|
push edi
|
||
|
|
popfd
|
||
|
|
push edx
|
||
|
|
push ecx
|
||
|
|
call ebx
|
||
|
|
jmp $
|
||
|
|
InternalX86EnablePaging32 ENDP
|
||
|
|
|
||
|
|
END
|