text: /*
   * FreeRTOS V202107.00
   * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy of
   * this software and associated documentation files (the "Software"), to deal in
   * the Software without restriction, including without limitation the rights to
   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
   * the Software, and to permit persons to whom the Software is furnished to do so,
   * subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
   * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
   * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
   * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   * http://www.FreeRTOS.org
   * http://aws.amazon.com/freertos
   *
   * 1 tab == 4 spaces!
   */
  
  /* Scheduler include files. */
  #include "FreeRTOS.h"
  #include "task.h"
  
  /* Demo file headers. */
  #include "regtest.h"
  
  /*
   * Test tasks that sets registers to known values, then checks to ensure the
   * values remain as expected.  Test 1 and test 2 use different values.
   */
  static void prvRegisterCheck1( void *pvParameters );
  static void prvRegisterCheck2( void *pvParameters );
  
  /* Set to a non zero value should an error be found. */
  portBASE_TYPE xRegTestError = pdFALSE;
  
  /*-----------------------------------------------------------*/
  
  void vStartRegTestTasks( void )
  {
  	xTaskCreate( prvRegisterCheck1, "Reg1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
  	xTaskCreate( prvRegisterCheck2, "Reg2", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
  }
  /*-----------------------------------------------------------*/
  
  portBASE_TYPE xAreRegTestTasksStillRunning( void )
  {
  portBASE_TYPE xReturn;
  
  	/* If a register was found to contain an unexpected value then the
  	xRegTestError variable would have been set to a non zero value. */
  	if( xRegTestError == pdFALSE )
  	{
  		xReturn = pdTRUE;
  	}
  	else
  	{
  		xReturn = pdFALSE;
  	}
  
  	return xReturn;
  }
  /*-----------------------------------------------------------*/
  
  static void prvRegisterCheck1( void *pvParameters )
  {
  	( void ) pvParameters;
  
  	for( ;; )
  	{
  		asm(	"LDI	r31,	5"		);
  		asm( 	"MOV	r0,		r31"	);
  		asm(	"LDI	r31,	6"		);
  		asm( 	"MOV	r1,		r31"	);
  		asm(	"LDI	r31,	7"		);
  		asm( 	"MOV	r2,		r31"	);
  		asm(	"LDI	r31,	8"		);
  		asm( 	"MOV	r3,		r31"	);
  		asm(	"LDI	r31,	9"		);
  		asm( 	"MOV	r4,		r31"	);
  		asm(	"LDI	r31,	10"		);
  		asm( 	"MOV	r5,		r31"	);
  		asm(	"LDI	r31,	11"		);
  		asm( 	"MOV	r6,		r31"	);
  		asm(	"LDI	r31,	12"		);
  		asm( 	"MOV	r7,		r31"	);
  		asm(	"LDI	r31,	13"		);
  		asm( 	"MOV	r8,		r31"	);
  		asm(	"LDI	r31,	14"		);
  		asm( 	"MOV	r9,		r31"	);
  		asm(	"LDI	r31,	15"		);
  		asm( 	"MOV	r10,	r31"	);
  		asm(	"LDI	r31,	16"		);
  		asm( 	"MOV	r11,	r31"	);
  		asm(	"LDI	r31,	17"		);
  		asm( 	"MOV	r12,	r31"	);
  		asm(	"LDI	r31,	18"		);
  		asm( 	"MOV	r13,	r31"	);
  		asm(	"LDI	r31,	19"		);
  		asm( 	"MOV	r14,	r31"	);
  		asm(	"LDI	r31,	20"		);
  		asm( 	"MOV	r15,	r31"	);
  		asm(	"LDI	r16,	21"		);
  		asm(	"LDI	r17,	22"		);
  		asm(	"LDI	r18,	23"		);
  		asm(	"LDI	r19,	24"		);
  		asm(	"LDI	r20,	25"		);
  		asm(	"LDI	r21,	26"		);
  		asm(	"LDI	r22,	27"		);
  		asm(	"LDI	r23,	28"		);
  		asm(	"LDI	r24,	29"		);
  		asm(	"LDI	r25,	30"		);
  		asm(	"LDI	r26,	31"		);
  		asm(	"LDI	r27,	32"		);
  		asm(	"LDI	r30,	33"		);
  
  		asm(	"LDI	r31,	5"			);
  		asm(	"CPSE	r31,	r0"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	6"			);
  		asm(	"CPSE	r31,	r1"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	7"			);
  		asm(	"CPSE	r31,	r2"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	8"			);
  		asm(	"CPSE	r31,	r3"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	9"			);
  		asm(	"CPSE	r31,	r4"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	10"			);
  		asm(	"CPSE	r31,	r5"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	11"			);
  		asm(	"CPSE	r31,	r6"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	12"			);
  		asm(	"CPSE	r31,	r7"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	13"			);
  		asm(	"CPSE	r31,	r8"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	14"			);
  		asm(	"CPSE	r31,	r9"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	15"			);
  		asm(	"CPSE	r31,	r10"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	16"			);
  		asm(	"CPSE	r31,	r11"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	17"			);
  		asm(	"CPSE	r31,	r12"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	18"			);
  		asm(	"CPSE	r31,	r13"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	19"			);
  		asm(	"CPSE	r31,	r14"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	20"			);
  		asm(	"CPSE	r31,	r15"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	21"			);
  		asm(	"CPSE	r31,	r16"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	22"			);
  		asm(	"CPSE	r31,	r17"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	23"			);
  		asm(	"CPSE	r31,	r18"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	24"			);
  		asm(	"CPSE	r31,	r19"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	25"			);
  		asm(	"CPSE	r31,	r20"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	26"			);
  		asm(	"CPSE	r31,	r21"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	27"			);
  		asm(	"CPSE	r31,	r22"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	28"			);
  		asm(	"CPSE	r31,	r23"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	29"			);
  		asm(	"CPSE	r31,	r24"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	30"			);
  		asm(	"CPSE	r31,	r25"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	31"			);
  		asm(	"CPSE	r31,	r26"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	32"			);
  		asm(	"CPSE	r31,	r27"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	33"			);
  		asm(	"CPSE	r31,	r30"		);
  		asm(	"STS	xRegTestError, r0"	);
  	}
  }
  /*-----------------------------------------------------------*/
  
  static void prvRegisterCheck2( void *pvParameters )
  {
  	( void ) pvParameters;
  
  	for( ;; )
  	{
  		asm(	"LDI	r31,	1"		);
  		asm( 	"MOV	r0,		r31"	);
  		asm(	"LDI	r31,	2"		);
  		asm( 	"MOV	r1,		r31"	);
  		asm(	"LDI	r31,	3"		);
  		asm( 	"MOV	r2,		r31"	);
  		asm(	"LDI	r31,	4"		);
  		asm( 	"MOV	r3,		r31"	);
  		asm(	"LDI	r31,	5"		);
  		asm( 	"MOV	r4,		r31"	);
  		asm(	"LDI	r31,	6"		);
  		asm( 	"MOV	r5,		r31"	);
  		asm(	"LDI	r31,	7"		);
  		asm( 	"MOV	r6,		r31"	);
  		asm(	"LDI	r31,	8"		);
  		asm( 	"MOV	r7,		r31"	);
  		asm(	"LDI	r31,	9"		);
  		asm( 	"MOV	r8,		r31"	);
  		asm(	"LDI	r31,	10"		);
  		asm( 	"MOV	r9,		r31"	);
  		asm(	"LDI	r31,	11"		);
  		asm( 	"MOV	r10,	r31"	);
  		asm(	"LDI	r31,	12"		);
  		asm( 	"MOV	r11,	r31"	);
  		asm(	"LDI	r31,	13"		);
  		asm( 	"MOV	r12,	r31"	);
  		asm(	"LDI	r31,	14"		);
  		asm( 	"MOV	r13,	r31"	);
  		asm(	"LDI	r31,	15"		);
  		asm( 	"MOV	r14,	r31"	);
  		asm(	"LDI	r31,	16"		);
  		asm( 	"MOV	r15,	r31"	);
  		asm(	"LDI	r16,	17"		);
  		asm(	"LDI	r17,	18"		);
  		asm(	"LDI	r18,	19"		);
  		asm(	"LDI	r19,	20"		);
  		asm(	"LDI	r20,	21"		);
  		asm(	"LDI	r21,	22"		);
  		asm(	"LDI	r22,	23"		);
  		asm(	"LDI	r23,	24"		);
  		asm(	"LDI	r24,	25"		);
  		asm(	"LDI	r25,	26"		);
  		asm(	"LDI	r26,	27"		);
  		asm(	"LDI	r27,	28"		);
  		asm(	"LDI	r30,	29"		);
  
  		asm(	"LDI	r31,	1"			);
  		asm(	"CPSE	r31,	r0"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	2"			);
  		asm(	"CPSE	r31,	r1"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	3"			);
  		asm(	"CPSE	r31,	r2"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	4"			);
  		asm(	"CPSE	r31,	r3"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	5"			);
  		asm(	"CPSE	r31,	r4"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	6"			);
  		asm(	"CPSE	r31,	r5"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	7"			);
  		asm(	"CPSE	r31,	r6"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	8"			);
  		asm(	"CPSE	r31,	r7"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	9"			);
  		asm(	"CPSE	r31,	r8"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	10"			);
  		asm(	"CPSE	r31,	r9"			);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	11"			);
  		asm(	"CPSE	r31,	r10"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	12"			);
  		asm(	"CPSE	r31,	r11"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	13"			);
  		asm(	"CPSE	r31,	r12"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	14"			);
  		asm(	"CPSE	r31,	r13"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	15"			);
  		asm(	"CPSE	r31,	r14"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	16"			);
  		asm(	"CPSE	r31,	r15"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	17"			);
  		asm(	"CPSE	r31,	r16"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	18"			);
  		asm(	"CPSE	r31,	r17"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	19"			);
  		asm(	"CPSE	r31,	r18"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	20"			);
  		asm(	"CPSE	r31,	r19"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	21"			);
  		asm(	"CPSE	r31,	r20"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	22"			);
  		asm(	"CPSE	r31,	r21"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	23"			);
  		asm(	"CPSE	r31,	r22"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	24"			);
  		asm(	"CPSE	r31,	r23"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	25"			);
  		asm(	"CPSE	r31,	r24"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	26"			);
  		asm(	"CPSE	r31,	r25"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	27"			);
  		asm(	"CPSE	r31,	r26"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	28"			);
  		asm(	"CPSE	r31,	r27"		);
  		asm(	"STS	xRegTestError, r0"	);
  		asm(	"LDI	r31,	29"			);
  		asm(	"CPSE	r31,	r30"		);
  		asm(	"STS	xRegTestError, r0"	);
  	}
  }
  
  