/*
	FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.

	This file is part of the FreeRTOS distribution.

	FreeRTOS is free software; you can redistribute it and/or modify it	under 
	the terms of the GNU General Public License (version 2) as published by the 
	Free Software Foundation and modified by the FreeRTOS exception.
	**NOTE** The exception to the GPL is included to allow you to distribute a
	combined work that includes FreeRTOS without being obliged to provide the 
	source code for proprietary components outside of the FreeRTOS kernel.  
	Alternative commercial license and support terms are also available upon 
	request.  See the licensing section of http://www.FreeRTOS.org for full 
	license details.

	FreeRTOS is distributed in the hope that it will be useful,	but WITHOUT
	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
	more details.

	You should have received a copy of the GNU General Public License along
	with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
	Temple Place, Suite 330, Boston, MA  02111-1307  USA.


	***************************************************************************
	*                                                                         *
	* Looking for a quick start?  Then check out the FreeRTOS eBook!          *
	* See http://www.FreeRTOS.org/Documentation for details                   *
	*                                                                         *
	***************************************************************************

	1 tab == 4 spaces!

	Please ensure to read the configuration and relevant port sections of the
	online documentation.

	http://www.FreeRTOS.org - Documentation, latest information, license and
	contact details.

	http://www.SafeRTOS.com - A version that is certified for use in safety
	critical systems.

	http://www.OpenRTOS.com - Commercial support, development, porting,
	licensing and training services.
*/

#ifndef PORTASM_H
#define PORTASM_H

portSAVE_CONTEXT macro

		IMPORT pxCurrentTCB
		IMPORT usCriticalNesting

		/* Save the remaining registers. */
		push	r4
		push	r5
		push	r6
		push	r7
		push	r8
		push	r9
		push	r10
		push	r11
		push	r12
		push	r13
		push	r14
		push	r15
		mov.w	&usCriticalNesting, r14
		push	r14
		mov.w	&pxCurrentTCB, r12
		mov.w	r1, 0(r12)
		endm
/*-----------------------------------------------------------*/
		
portRESTORE_CONTEXT macro
		mov.w	&pxCurrentTCB, r12
		mov.w	@r12, r1
		pop		r15
		mov.w	r15, &usCriticalNesting
		pop		r15
		pop		r14
		pop		r13
		pop		r12
		pop		r11
		pop		r10
		pop		r9
		pop		r8
		pop		r7
		pop		r6
		pop		r5
		pop		r4

		/* The last thing on the stack will be the status register.
        Ensure the power down bits are clear ready for the next
        time this power down register is popped from the stack. */
		bic.w   #0xf0,0(SP)

		reti
		endm
/*-----------------------------------------------------------*/

#endif