mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-30 12:43:41 +01:00
49 lines
1.3 KiB
NASM
49 lines
1.3 KiB
NASM
;------------------------------------------------------------------------------
|
|
;
|
|
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
|
|
; SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
;
|
|
; Module Name:
|
|
;
|
|
; EnablePaging32.Asm
|
|
;
|
|
; Abstract:
|
|
;
|
|
; AsmEnablePaging32 function
|
|
;
|
|
; Notes:
|
|
;
|
|
;------------------------------------------------------------------------------
|
|
|
|
SECTION .text
|
|
|
|
;------------------------------------------------------------------------------
|
|
; VOID
|
|
; EFIAPI
|
|
; InternalX86EnablePaging32 (
|
|
; IN SWITCH_STACK_ENTRY_POINT EntryPoint,
|
|
; IN VOID *Context1, OPTIONAL
|
|
; IN VOID *Context2, OPTIONAL
|
|
; IN VOID *NewStack
|
|
; );
|
|
;------------------------------------------------------------------------------
|
|
global ASM_PFX(InternalX86EnablePaging32)
|
|
ASM_PFX(InternalX86EnablePaging32):
|
|
mov ebx, [esp + 4]
|
|
mov ecx, [esp + 8]
|
|
mov edx, [esp + 12]
|
|
pushfd
|
|
pop edi ; save flags in edi
|
|
cli
|
|
mov eax, cr0
|
|
bts eax, 31
|
|
mov esp, [esp + 16]
|
|
mov cr0, eax
|
|
push edi
|
|
popfd ; restore flags
|
|
push edx
|
|
push ecx
|
|
call ebx
|
|
jmp $
|
|
|