/*
    FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.

    FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME.  PLEASE VISIT
    http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

    ***************************************************************************
     *                                                                       *
     *    FreeRTOS tutorial books are available in pdf and paperback.        *
     *    Complete, revised, and edited pdf reference manuals are also       *
     *    available.                                                         *
     *                                                                       *
     *    Purchasing FreeRTOS documentation will not only help you, by       *
     *    ensuring you get running as quickly as possible and with an        *
     *    in-depth knowledge of how to use FreeRTOS, it will also help       *
     *    the FreeRTOS project to continue with its mission of providing     *
     *    professional grade, cross platform, de facto standard solutions    *
     *    for microcontrollers - completely free of charge!                  *
     *                                                                       *
     *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *
     *                                                                       *
     *    Thank you for using FreeRTOS, and thank you for your support!      *
     *                                                                       *
    ***************************************************************************


    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 modification 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.

    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
    and the FreeRTOS license exception along with FreeRTOS; if not itcan be
    viewed here: http://www.freertos.org/a00114.html and also obtained by
    writing to Real Time Engineers Ltd., contact details for whom are available
    on the FreeRTOS WEB site.

    1 tab == 4 spaces!

    ***************************************************************************
     *                                                                       *
     *    Having a problem?  Start by reading the FAQ "My application does   *
     *    not run, what could be wrong?"                                     *
     *                                                                       *
     *    http://www.FreeRTOS.org/FAQHelp.html                               *
     *                                                                       *
    ***************************************************************************


    http://www.FreeRTOS.org - Documentation, books, training, latest versions, 
    license and Real Time Engineers Ltd. contact details.

    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
    including FreeRTOS+Trace - an indispensable productivity tool, and our new
    fully thread aware and reentrant UDP/IP stack.

    http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High 
    Integrity Systems, who sell the code with commercial support, 
    indemnification and middleware, under the OpenRTOS brand.
    
    http://www.SafeRTOS.com - High Integrity Systems also provide a safety 
    engineered and independently SIL3 certified version for use in safety and 
    mission critical applications that require provable dependability.
*/

void vRegTest1Task( void ) __attribute__((naked));
void vRegTest2Task( void ) __attribute__((naked));

void vRegTest1Task( void )
{
	__asm volatile
	(
		".extern ulRegTest1LoopCounter		\n"
		"									\n"
		"	/* Fill the core registers with known values. */ \n"
		"	movs r1, #101					\n"
		"	movs r2, #102					\n"
		"	movs r3, #103					\n"
		"	movs r4, #104					\n"
		"	movs r5, #105					\n"
		"	movs r6, #106					\n"
		"	movs r7, #107					\n"
		"	movs r0, #108					\n"
		"	mov	 r8, r0						\n"
		"	movs r0, #109					\n"
		"	mov  r9, r0						\n"
		"	movs r0, #110					\n"
		"	mov	 r10, r0					\n"
		"	movs r0, #111					\n"
		"	mov	 r11, r0					\n"
		"	movs r0, #112					\n"
		"	mov  r12, r0					\n"
		"	movs r0, #100					\n"
		"									\n"
		"reg1_loop:							\n"
		"									\n"
		"	cmp	r0, #100					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r1, #101					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r2, #102					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp r3, #103					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r4, #104					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r5, #105					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r6, #106					\n"
		"	bne	reg1_error_loop				\n"
		"	cmp	r7, #107					\n"
		"	bne	reg1_error_loop				\n"
		"	movs r0, #108					\n"
		"	cmp	r8, r0						\n"
		"	bne	reg1_error_loop				\n"
		"	movs r0, #109					\n"
		"	cmp	r9, r0						\n"
		"	bne	reg1_error_loop				\n"
		"	movs r0, #110					\n"
		"	cmp	r10, r0						\n"
		"	bne	reg1_error_loop				\n"
		"	movs r0, #111					\n"
		"	cmp	r11, r0						\n"
		"	bne	reg1_error_loop				\n"
		"	movs r0, #112					\n"
		"	cmp	r12, r0						\n"
		"	bne	reg1_error_loop				\n"
		"									\n"
		"	/* Everything passed, increment the loop counter. */ \n"
		"	push { r1 }						\n"
		"	ldr	r0, =ulRegTest1LoopCounter	\n"
		"	ldr r1, [r0]					\n"
		"	add r1, r1, #1					\n"
		"	str r1, [r0]					\n"
		"	pop { r1 }						\n"
		"									\n"
		"	/* Start again. */				\n"
		"	movs r0, #100					\n"
		"	b reg1_loop						\n"
		"									\n"
		"reg1_error_loop:					\n"
		"	/* If this line is hit then there was an error in a core register value. 	\n"
		"	The loop ensures the loop counter stops incrementing. */					\n"
		"	b reg1_error_loop				\n"
		"	nop								\n"
	);
}
/*-----------------------------------------------------------*/

void vRegTest2Task( void )
{
	__asm volatile
	(
		".extern ulRegTest2LoopCounter		\n"
		"									\n"
		"	/* Fill the core registers with known values. */ \n"
		"	movs r1, #1						\n"
		"	movs r2, #2						\n"
		"	movs r3, #3						\n"
		"	movs r4, #4						\n"
		"	movs r5, #5						\n"
		"	movs r6, #6						\n"
		"	movs r7, #7						\n"
		"	movs r0, #8						\n"
		"	movs r8, r0						\n"
		"	movs r0, #9						\n"
		"	mov  r9, r0						\n"
		"	movs r0, #10					\n"
		"	mov	 r10, r0					\n"
		"	movs r0, #11					\n"
		"	mov	 r11, r0					\n"
		"	movs r0, #12					\n"
		"	mov  r12, r0					\n"
		"	movs r0, #10					\n"
		"									\n"
		"reg2_loop:							\n"
		"									\n"
		"	cmp	r0, #10						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r1, #1						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r2, #2						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp r3, #3						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r4, #4						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r5, #5						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r6, #6						\n"
		"	bne	reg2_error_loop				\n"
		"	cmp	r7, #7						\n"
		"	bne	reg2_error_loop				\n"
		"	movs r0, #8						\n"
		"	cmp	r8, r0						\n"
		"	bne	reg2_error_loop				\n"
		"	movs r0, #9						\n"
		"	cmp	r9, r0						\n"
		"	bne	reg2_error_loop				\n"
		"	movs r0, #10					\n"
		"	cmp	r10, r0						\n"
		"	bne	reg2_error_loop				\n"
		"	movs r0, #11					\n"
		"	cmp	r11, r0						\n"
		"	bne	reg2_error_loop				\n"
		"	movs r0, #12					\n"
		"	cmp	r12, r0						\n"
		"	bne	reg2_error_loop				\n"
		"									\n"
		"	/* Everything passed, increment the loop counter. */ \n"
		"	push { r1 }						\n"
		"	ldr	r0, =ulRegTest2LoopCounter	\n"
		"	ldr r1, [r0]					\n"
		"	add r1, r1, #1					\n"
		"	str r1, [r0]					\n"
		"	pop { r1 }						\n"
		"									\n"
		"	/* Start again. */				\n"
		"	movs r0, #10					\n"
		"	b reg2_loop						\n"
		"									\n"
		"reg2_error_loop:					\n"
		"	/* If this line is hit then there was an error in a core register value. 	\n"
		"	The loop ensures the loop counter stops incrementing. */					\n"
		"	b reg2_error_loop				\n"
		"	nop								\n"
	);
}
/*-----------------------------------------------------------*/