mirror of https://github.com/acidanthera/audk.git
53 lines
1.6 KiB
ArmAsm
53 lines
1.6 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006 - 2008, Intel Corporation
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# All rights reserved. This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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# Module Name:
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#
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# EnablePaging32.S
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#
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# Abstract:
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#
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# InternalX86EnablePaging32 function
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#
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# Notes:
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#
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#------------------------------------------------------------------------------
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.globl ASM_PFX(InternalX86EnablePaging32)
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#------------------------------------------------------------------------------
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# VOID
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# EFIAPI
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# InternalX86EnablePaging32 (
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# IN SWITCH_STACK_ENTRY_POINT EntryPoint,
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# IN VOID *Context1, OPTIONAL
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# IN VOID *Context2, OPTIONAL
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# IN VOID *NewStack
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# );
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#------------------------------------------------------------------------------
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ASM_PFX(InternalX86EnablePaging32):
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movl 4(%esp), %ebx
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movl 8(%esp), %ecx
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movl 12(%esp), %edx
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pushfl
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pop %edi
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cli
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movl %cr0, %eax
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btsl $31, %eax
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movl 16(%esp), %esp
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movl %eax, %cr0
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push %edi
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popfl
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push %edx
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push %ecx
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call *%ebx
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jmp .
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