1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4; This program and the accompanying materials
5; are licensed and made available under the terms and conditions of the BSD License
6; which accompanies this distribution.  The full text of the license may be found at
7; http://opensource.org/licenses/bsd-license.php.
8;
9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11;
12; Module Name:
13;
14;   EnablePaging32.Asm
15;
16; Abstract:
17;
18;   AsmEnablePaging32 function
19;
20; Notes:
21;
22;------------------------------------------------------------------------------
23
24    SECTION .text
25
26;------------------------------------------------------------------------------
27; VOID
28; EFIAPI
29; InternalX86EnablePaging32 (
30;   IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,
31;   IN      VOID                      *Context1,    OPTIONAL
32;   IN      VOID                      *Context2,    OPTIONAL
33;   IN      VOID                      *NewStack
34;   );
35;------------------------------------------------------------------------------
36global ASM_PFX(InternalX86EnablePaging32)
37ASM_PFX(InternalX86EnablePaging32):
38    mov     ebx, [esp + 4]
39    mov     ecx, [esp + 8]
40    mov     edx, [esp + 12]
41    pushfd
42    pop     edi                         ; save flags in edi
43    cli
44    mov     eax, cr0
45    bts     eax, 31
46    mov     esp, [esp + 16]
47    mov     cr0, eax
48    push    edi
49    popfd                               ; restore flags
50    push    edx
51    push    ecx
52    call    ebx
53    jmp     $
54
55