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#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, 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.S
#
# Abstract:
#
# InternalX86EnablePaging32 function
#
# Notes:
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(InternalX86EnablePaging32)
#------------------------------------------------------------------------------
# VOID
# EFIAPI
# InternalX86EnablePaging32 (
# IN SWITCH_STACK_ENTRY_POINT EntryPoint,
# IN VOID *Context1, OPTIONAL
# IN VOID *Context2, OPTIONAL
# IN VOID *NewStack
# );
#------------------------------------------------------------------------------
ASM_PFX(InternalX86EnablePaging32):
movl 4(%esp), %ebx
movl 8(%esp), %ecx
movl 12(%esp), %edx
pushfl
pop %edi # save flags in edi
cli
movl %cr0, %eax
btsl $31, %eax
movl 16(%esp), %esp
movl %eax, %cr0
push %edi
popfl # restore flags
push %edx
push %ecx
call *%ebx
jmp .
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