;/* | |
; FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd. | |
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; | |
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; *************************************************************************** | |
; | |
; This file is part of the FreeRTOS distribution. | |
; | |
; FreeRTOS is free software; you can redistribute it and/or modify it under | |
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; 1 tab == 4 spaces! | |
;*/ | |
.global _vRegTest1Implementation | |
.global _vRegTest2Implementation | |
.extern _ulRegTest1LoopCounter | |
.extern _ulRegTest2LoopCounter | |
.text | |
;/* This function is explained in the comments at the top of main.c. */ | |
_vRegTest1Implementation: | |
; Put a known value in each register. | |
MOV.L #1, R1 | |
MOV.L #2, R2 | |
MOV.L #3, R3 | |
MOV.L #4, R4 | |
MOV.L #5, R5 | |
MOV.L #6, R6 | |
MOV.L #7, R7 | |
MOV.L #8, R8 | |
MOV.L #9, R9 | |
MOV.L #10, R10 | |
MOV.L #11, R11 | |
MOV.L #12, R12 | |
MOV.L #13, R13 | |
MOV.L #14, R14 | |
MOV.L #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.L #_ulRegTest1LoopCounter, R14 | |
MOV.L [ R14 ], R15 | |
ADD #1, R15 | |
MOV.L R15, [ R14 ] | |
; Yield to extend the text coverage. Set the bit in the ITU SWINTR register. | |
MOV.L #1, R14 | |
MOV.L #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. */ | |
_vRegTest2Implementation: | |
; Put a known value in each register. | |
MOV.L #10, R1 | |
MOV.L #20, R2 | |
MOV.L #30, R3 | |
MOV.L #40, R4 | |
MOV.L #50, R5 | |
MOV.L #60, R6 | |
MOV.L #70, R7 | |
MOV.L #80, R8 | |
MOV.L #90, R9 | |
MOV.L #100, R10 | |
MOV.L #110, R11 | |
MOV.L #120, R12 | |
MOV.L #130, R13 | |
MOV.L #140, R14 | |
MOV.L #150, R15 | |
; Loop, checking on 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.L #_ulRegTest2LoopCounter, R14 | |
MOV.L [ R14 ], R15 | |
ADD #1, R15 | |
MOV.L R15, [ R14 ] | |
; Restore the clobbered registers. | |
POPM R14-R15 | |
CMP #10, R1 | |
BNE RegTest2Error | |
CMP #20, R2 | |
BNE RegTest2Error | |
CMP #30, R3 | |
BNE RegTest2Error | |
CMP #40, R4 | |
BNE RegTest2Error | |
CMP #50, R5 | |
BNE RegTest2Error | |
CMP #60, R6 | |
BNE RegTest2Error | |
CMP #70, R7 | |
BNE RegTest2Error | |
CMP #80, R8 | |
BNE RegTest2Error | |
CMP #90, R9 | |
BNE RegTest2Error | |
CMP #100, R10 | |
BNE RegTest2Error | |
CMP #110, R11 | |
BNE RegTest2Error | |
CMP #120, R12 | |
BNE RegTest2Error | |
CMP #130, R13 | |
BNE RegTest2Error | |
CMP #140, R14 | |
BNE RegTest2Error | |
CMP #150, 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 |