2 ; * FreeRTOS Kernel V10.2.1
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3 ; * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 ; * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 ; * this software and associated documentation files (the "Software"), to deal in
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7 ; * the Software without restriction, including without limitation the rights to
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8 ; * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 ; * the Software, and to permit persons to whom the Software is furnished to do so,
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10 ; * subject to the following conditions:
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12 ; * The above copyright notice and this permission notice shall be included in all
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13 ; * copies or substantial portions of the Software.
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15 ; * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 ; * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 ; * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 ; * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 ; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 ; * http://www.FreeRTOS.org
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23 ; * http://aws.amazon.com/freertos
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25 ; * 1 tab == 4 spaces!
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28 .global _vRegTest1Implementation
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29 .global _vRegTest2Implementation
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31 .extern _ulRegTest1LoopCounter
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32 .extern _ulRegTest2LoopCounter
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37 ;/* This function is explained in the comments at the top of main.c. */
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38 _vRegTest1Implementation:
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40 ;/* Put a known value in the guard byte of the accumulators. */
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46 ;/* Put a known value in each register. */
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63 ;/* Put a known value in the hi and low of the accumulators. */
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69 ;/* Loop, checking each iteration that each register still contains the
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73 ;/* Push the registers that are going to get clobbered. */
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76 ;/* Increment the loop counter to show this task is still getting CPU time. */
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77 MOV.L #_ulRegTest1LoopCounter, R14
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82 ;/* Yield to extend the text coverage. Set the bit in the ITU SWINTR register. */
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89 ;/* Check accumulators. */
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102 MVFACLO #0, A1, R15
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105 MVFACGU #0, A1, R15
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109 ;/* Restore the clobbered registers. */
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112 ;/* Now compare each register to ensure it still contains the value that was
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113 ;set before this loop was entered. */
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145 ;/* All comparisons passed, start a new itteratio of this loop. */
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149 ;/* A compare failed, just loop here so the loop counter stops incrementing
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150 ;- causing the check task to indicate the error. */
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152 ;/*-----------------------------------------------------------*/
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154 ;/* This function is explained in the comments at the top of main.c. */
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155 _vRegTest2Implementation:
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157 ;/* Put a known value in the guard byte of the accumulators. */
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163 ;/* Put a known value in each general purpose register. */
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180 ;/* Put a known value in the hi and low of the accumulators. */
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186 ;/* Loop, checking each iteration that each register still contains the
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187 ;expected value. */
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190 ;/* Push the registers that are going to get clobbered. */
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193 ;/* Increment the loop counter to show this task is still getting CPU time. */
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194 MOV.L #_ulRegTest2LoopCounter, R14
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199 ;/* Check accumulators. */
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200 MVFACHI #0, A0, R15
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203 MVFACLO #0, A0, R15
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206 MVFACGU #0, A0, R15
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209 MVFACHI #0, A1, R15
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212 MVFACLO #0, A1, R15
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215 MVFACGU #0, A1, R15
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219 ;/* Restore the clobbered registers. */
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222 ;/* Now compare each register to ensure it still contains the value that was
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223 ;set before this loop was entered. */
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255 ;/* All comparisons passed, start a new itteratio of this loop. */
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259 ;/* A compare failed, just loop here so the loop counter stops incrementing
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260 ;- causing the check task to indicate the error. */
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