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jeremybenn |
/*
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FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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***************************************************************************
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* *
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* If you are: *
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* *
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* + New to FreeRTOS, *
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* + Wanting to learn FreeRTOS or multitasking in general quickly *
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* + Looking for basic training, *
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* + Wanting to improve your FreeRTOS skills and productivity *
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* *
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* then take a look at the FreeRTOS books - available as PDF or paperback *
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* *
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* "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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* http://www.FreeRTOS.org/Documentation *
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* *
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* A pdf reference manual is also available. Both are usually delivered *
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* to your inbox within 20 minutes to two hours when purchased between 8am *
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* and 8pm GMT (although please allow up to 24 hours in case of *
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* exceptional circumstances). Thank you for your support! *
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* *
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***************************************************************************
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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***NOTE*** The exception to the GPL is included to allow you to distribute
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a combined work that includes FreeRTOS without being obliged to provide the
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source code for proprietary components outside of the FreeRTOS kernel.
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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1 tab == 4 spaces!
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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PUBLIC _prvRegTest1Implementation
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PUBLIC _prvRegTest2Implementation
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EXTERN _ulRegTest1CycleCount
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EXTERN _ulRegTest2CycleCount
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RSEG CODE:CODE(4)
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/* This function is explained in the comments at the top of main.c. */
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_prvRegTest1Implementation:
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/* Put a known value in each register. */
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MOV #1, R1
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MOV #2, R2
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MOV #3, R3
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MOV #4, R4
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MOV #5, R5
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MOV #6, R6
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MOV #7, R7
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MOV #8, R8
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MOV #9, R9
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MOV #10, R10
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MOV #11, R11
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MOV #12, R12
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MOV #13, R13
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MOV #14, R14
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MOV #15, R15
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/* Loop, checking each itteration that each register still contains the
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expected value. */
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TestLoop1:
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/* Push the registers that are going to get clobbered. */
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PUSHM R14-R15
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/* Increment the loop counter to show this task is still getting CPU time. */
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MOV #_ulRegTest1CycleCount, R14
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MOV [ R14 ], R15
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ADD #1, R15
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MOV R15, [ R14 ]
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/* Yield to extend the text coverage. Set the bit in the ITU SWINTR register. */
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MOV #1, R14
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MOV #0872E0H, R15
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MOV.B R14, [R15]
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NOP
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NOP
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/* Restore the clobbered registers. */
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POPM R14-R15
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/* Now compare each register to ensure it still contains the value that was
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set before this loop was entered. */
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CMP #1, R1
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BNE RegTest1Error
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CMP #2, R2
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BNE RegTest1Error
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CMP #3, R3
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BNE RegTest1Error
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CMP #4, R4
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BNE RegTest1Error
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CMP #5, R5
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BNE RegTest1Error
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CMP #6, R6
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BNE RegTest1Error
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CMP #7, R7
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BNE RegTest1Error
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CMP #8, R8
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BNE RegTest1Error
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CMP #9, R9
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BNE RegTest1Error
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CMP #10, R10
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BNE RegTest1Error
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CMP #11, R11
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BNE RegTest1Error
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CMP #12, R12
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BNE RegTest1Error
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CMP #13, R13
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BNE RegTest1Error
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CMP #14, R14
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BNE RegTest1Error
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CMP #15, R15
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BNE RegTest1Error
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/* All comparisons passed, start a new itteratio of this loop. */
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BRA TestLoop1
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RegTest1Error:
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/* A compare failed, just loop here so the loop counter stops incrementing
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- causing the check task to indicate the error. */
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BRA RegTest1Error
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/*-----------------------------------------------------------*/
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/* This function is explained in the comments at the top of main.c. */
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_prvRegTest2Implementation:
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/* Put a known value in each register. */
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MOV #10H, R1
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MOV #20H, R2
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MOV #30H, R3
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MOV #40H, R4
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MOV #50H, R5
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MOV #60H, R6
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MOV #70H, R7
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MOV #80H, R8
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MOV #90H, R9
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MOV #100H, R10
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MOV #110H, R11
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MOV #120H, R12
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MOV #130H, R13
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MOV #140H, R14
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MOV #150H, R15
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/* Loop, checking each itteration that each register still contains the
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expected value. */
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TestLoop2:
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/* Push the registers that are going to get clobbered. */
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PUSHM R14-R15
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/* Increment the loop counter to show this task is still getting CPU time. */
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MOV #_ulRegTest2CycleCount, R14
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MOV [ R14 ], R15
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ADD #1, R15
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MOV R15, [ R14 ]
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/* Restore the clobbered registers. */
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POPM R14-R15
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/* Now compare each register to ensure it still contains the value that was
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set before this loop was entered. */
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CMP #10H, R1
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BNE RegTest2Error
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CMP #20H, R2
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BNE RegTest2Error
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CMP #30H, R3
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BNE RegTest2Error
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CMP #40H, R4
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BNE RegTest2Error
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CMP #50H, R5
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BNE RegTest2Error
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CMP #60H, R6
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BNE RegTest2Error
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CMP #70H, R7
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BNE RegTest2Error
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CMP #80H, R8
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BNE RegTest2Error
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CMP #90H, R9
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BNE RegTest2Error
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CMP #100H, R10
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BNE RegTest2Error
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CMP #110H, R11
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BNE RegTest2Error
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CMP #120H, R12
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BNE RegTest2Error
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CMP #130H, R13
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BNE RegTest2Error
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CMP #140H, R14
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BNE RegTest2Error
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CMP #150H, R15
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BNE RegTest2Error
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/* All comparisons passed, start a new itteratio of this loop. */
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BRA TestLoop2
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RegTest2Error:
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/* A compare failed, just loop here so the loop counter stops incrementing
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- causing the check task to indicate the error. */
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BRA RegTest2Error
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END
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