Fixes for GCC.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / EnablePaging32.s

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2006, Intel Corporation\r
# All rights reserved. This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
# Module Name:\r
#\r
#   EnablePaging32.Asm\r
#\r
# Abstract:\r
#\r
#   AsmEnablePaging32 function\r
#\r
# Notes:\r
#\r
#------------------------------------------------------------------------------\r
\r
\r
\r
     \r
\r
#------------------------------------------------------------------------------\r
# VOID\r
# EFIAPI\r
# AsmEnablePaging32 (\r
#   IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,\r
#   IN      VOID                      *Context1,    OPTIONAL\r
#   IN      VOID                      *Context2,    OPTIONAL\r
#   IN      VOID                      *NewStack\r
#   );\r
#------------------------------------------------------------------------------\r
.global _AsmEnablePaging32\r
_AsmEnablePaging32: \r
    movl    4(%esp),%ebx\r
    movl    8(%esp),%ecx\r
    movl    12(%esp),%edx\r
    pushfl\r
    popl    %edi\r
    cli\r
    movl    %cr0, %eax\r
    btsl    $31,%eax\r
    movl    16(%esp),%esp\r
    movl    %eax, %cr0\r
    pushl   %edi\r
    popfl\r
    pushl   %edx\r
    pushl   %ecx\r
    call    *%ebx\r
    jmp     .\r
\r
\r
\r