// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "Eclipse Public License v1.0"

 // which accompanies this distribution, and is available

 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 //

 #include <setjmp.h>

 #ifdef __CW32__

 #define _asm asm

 #endif

 extern "C" {

 EXPORT_C int setjmp(jmp_buf __jmpb)

 	{

 	// preamble does "push ebp; mov ebp,esp;"

 	_asm mov eax, __jmpb

 	_asm mov [eax],    ebx

 	_asm mov [eax+4],  esi

 	_asm mov [eax+8],  edi

 	_asm mov [eax+12], ebp		// caller's ESP

 	_asm mov [eax+16], ds

 	_asm mov [eax+20], es

 	_asm mov [eax+24], fs

 	_asm mov [eax+28], gs

 	_asm mov edx, [ebp]

 	_asm mov [eax+32], edx		// caller's EBP

 	_asm mov edx, [ebp+4]

 	_asm mov [eax+36], edx		// return address EIP

 	return(0);

 	}

 EXPORT_C void longjmp(jmp_buf __jmpb, int __retval)

 	{

 	__jmpb[10]= (__retval == 0) ? 1 : __retval;		// so we can return it after changing ESP/EBP

 	_asm mov eax, __jmpb

 	_asm mov ebp, [eax+12]

 	_asm mov esp, ebp		// restore setjmp ESP (and leave EBP==ESP)

 	_asm mov ebx, [eax]

 	_asm mov esi, [eax+4]

 	_asm mov edi, [eax+8]

 	_asm mov ds, [eax+16]

 	_asm mov es, [eax+20]

 	_asm mov fs, [eax+24]

 	_asm mov gs, [eax+28]

 	_asm mov edx, [eax+32]

 	_asm mov [ebp], edx		// put setjmp caller's EBP back into stack

 	_asm mov edx, [eax+36]

 	_asm mov [ebp+4], edx		// put setjmp caller's EIP back into stack

 	_asm mov eax, [eax+40]

 	_asm pop ebp

 	_asm ret 

 	}

 } // extern "C"