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IntelFsp2Pkg BaseFspSwitchStackLib: Convert Ia32/Stack.asm to NASM
The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert Ia32/Stack.asm to Ia32/Stack.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Liming Gao <liming.gao@intel.com>
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## @file
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## @file
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# Instance of BaseFspSwitchStackLib
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# Instance of BaseFspSwitchStackLib
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#
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#
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# Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
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#
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#
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# This program and the accompanying materials
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# 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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# are licensed and made available under the terms and conditions of the BSD License
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FspSwitchStackLib.c
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FspSwitchStackLib.c
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[Sources.IA32]
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[Sources.IA32]
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Ia32/Stack.asm | MSFT
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Ia32/Stack.asm
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Ia32/Stack.s | GCC
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Ia32/Stack.s
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Ia32/Stack.nasm
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[Packages]
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[Packages]
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MdePkg/MdePkg.dec
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MdePkg/MdePkg.dec
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74
IntelFsp2Pkg/Library/BaseFspSwitchStackLib/Ia32/Stack.nasm
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74
IntelFsp2Pkg/Library/BaseFspSwitchStackLib/Ia32/Stack.nasm
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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; 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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; Abstract:
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;
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; Switch the stack from temporary memory to permenent memory.
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;
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;------------------------------------------------------------------------------
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SECTION .text
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extern ASM_PFX(SwapStack)
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; Pei2LoaderSwitchStack (
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; VOID
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; )
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;------------------------------------------------------------------------------
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global ASM_PFX(Pei2LoaderSwitchStack)
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ASM_PFX(Pei2LoaderSwitchStack):
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xor eax, eax
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jmp ASM_PFX(FspSwitchStack)
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; Loader2PeiSwitchStack (
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; VOID
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; )
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;------------------------------------------------------------------------------
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global ASM_PFX(Loader2PeiSwitchStack)
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ASM_PFX(Loader2PeiSwitchStack):
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jmp ASM_PFX(FspSwitchStack)
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; FspSwitchStack (
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; VOID
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; )
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;------------------------------------------------------------------------------
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global ASM_PFX(FspSwitchStack)
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ASM_PFX(FspSwitchStack):
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; Save current contexts
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push eax
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pushfd
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cli
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pushad
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sub esp, 8
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sidt [esp]
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; Load new stack
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push esp
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call ASM_PFX(SwapStack)
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mov esp, eax
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; Restore previous contexts
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lidt [esp]
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add esp, 8
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popad
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popfd
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add esp, 4
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ret
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