/*
 * FreeRTOS Kernel V10.2.1
 * Copyright (C) 2019 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!
 */

	PUBLIC _prvRegTest1Implementation
	PUBLIC _prvRegTest2Implementation
	
	EXTERN _ulRegTest1CycleCount
	EXTERN _ulRegTest2CycleCount

	RSEG CODE:CODE(4)

/* This function is explained in the comments at the top of main.c. */
_prvRegTest1Implementation:

	/* Put a known value in each register. */
	MOV	#1, R1						
	MOV	#2, R2						
	MOV	#3, R3						
	MOV	#4, R4						
	MOV	#5, R5						
	MOV	#6, R6						
	MOV	#7, R7						
	MOV	#8, R8						
	MOV	#9, R9						
	MOV	#10, R10					
	MOV	#11, R11					
	MOV	#12, R12					
	MOV	#13, R13					
	MOV	#14, R14					
	MOV	#15, R15					
	
	/* Loop, checking each iteration that each register still contains the
	expected value. */
TestLoop1:								

	/* Push the registers that are going to get clobbered. */
	PUSHM	R14-R15						
	
	/* Increment the loop counter to show this task is still getting CPU time. */
	MOV	#_ulRegTest1CycleCount, R14	
	MOV	[ R14 ], R15				
	ADD	#1, R15						
	MOV	R15, [ R14 ]				
	
	/* Yield to extend the text coverage.  Set the bit in the ITU SWINTR register. */
	MOV	#1, R14						
	MOV 	#0872E0H, R15				
	MOV.B	R14, [R15]					
	NOP								
	NOP								
	
	/* Restore the clobbered registers. */
	POPM	R14-R15						
	
	/* Now compare each register to ensure it still contains the value that was
	set before this loop was entered. */
	CMP	#1, R1						
	BNE	RegTest1Error				
	CMP	#2, R2						
	BNE	RegTest1Error				
	CMP	#3, R3						
	BNE	RegTest1Error				
	CMP	#4, R4						
	BNE	RegTest1Error				
	CMP	#5, R5						
	BNE	RegTest1Error				
	CMP	#6, R6						
	BNE	RegTest1Error				
	CMP	#7, R7						
	BNE	RegTest1Error				
	CMP	#8, R8						
	BNE	RegTest1Error				
	CMP	#9, R9						
	BNE	RegTest1Error				
	CMP	#10, R10					
	BNE	RegTest1Error				
	CMP	#11, R11					
	BNE	RegTest1Error				
	CMP	#12, R12					
	BNE	RegTest1Error				
	CMP	#13, R13					
	BNE	RegTest1Error				
	CMP	#14, R14					
	BNE	RegTest1Error				
	CMP	#15, R15					
	BNE	RegTest1Error				

	/* All comparisons passed, start a new itteratio of this loop. */
	BRA		TestLoop1				
	
RegTest1Error:							
	/* A compare failed, just loop here so the loop counter stops incrementing
	- causing the check task to indicate the error. */
	BRA RegTest1Error					
/*-----------------------------------------------------------*/

/* This function is explained in the comments at the top of main.c. */
_prvRegTest2Implementation:

	/* Put a known value in each register. */
	MOV	#10H, R1					
	MOV	#20H, R2					
	MOV	#30H, R3					
	MOV	#40H, R4					
	MOV	#50H, R5					
	MOV	#60H, R6					
	MOV	#70H, R7					
	MOV	#80H, R8					
	MOV	#90H, R9					
	MOV	#100H, R10					
	MOV	#110H, R11					
	MOV	#120H, R12					
	MOV	#130H, R13					
	MOV	#140H, R14					
	MOV	#150H, R15					
	
	/* Loop, checking each iteration that each register still contains the
	expected value. */
TestLoop2:								

	/* Push the registers that are going to get clobbered. */
	PUSHM	R14-R15						
	
	/* Increment the loop counter to show this task is still getting CPU time. */
	MOV	#_ulRegTest2CycleCount, R14	
	MOV	[ R14 ], R15				
	ADD	#1, R15						
	MOV	R15, [ R14 ]				
	
	/* Restore the clobbered registers. */
	POPM	R14-R15						
	
	/* Now compare each register to ensure it still contains the value that was
	set before this loop was entered. */
	CMP	#10H, R1					
	BNE	RegTest2Error				
	CMP	#20H, R2					
	BNE	RegTest2Error				
	CMP	#30H, R3					
	BNE	RegTest2Error				
	CMP	#40H, R4					
	BNE	RegTest2Error				
	CMP	#50H, R5					
	BNE	RegTest2Error				
	CMP	#60H, R6					
	BNE	RegTest2Error				
	CMP	#70H, R7					
	BNE	RegTest2Error				
	CMP	#80H, R8					
	BNE	RegTest2Error				
	CMP	#90H, R9					
	BNE	RegTest2Error				
	CMP	#100H, R10					
	BNE	RegTest2Error				
	CMP	#110H, R11					
	BNE	RegTest2Error				
	CMP	#120H, R12					
	BNE	RegTest2Error				
	CMP	#130H, R13					
	BNE	RegTest2Error				
	CMP	#140H, R14					
	BNE	RegTest2Error				
	CMP	#150H, R15					
	BNE	RegTest2Error				

	/* All comparisons passed, start a new itteratio of this loop. */
	BRA	TestLoop2					
	
RegTest2Error:							
	/* A compare failed, just loop here so the loop counter stops incrementing
	- causing the check task to indicate the error. */
	BRA RegTest2Error					

	
	END
