2 ; FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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4 ; ***************************************************************************
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8 ; * + New to FreeRTOS, *
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9 ; * + Wanting to learn FreeRTOS or multitasking in general quickly *
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10 ; * + Looking for basic training, *
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11 ; * + Wanting to improve your FreeRTOS skills and productivity *
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13 ; * then take a look at the FreeRTOS books - available as PDF or paperback *
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15 ; * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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16 ; * http://www.FreeRTOS.org/Documentation *
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18 ; * A pdf reference manual is also available. Both are usually delivered *
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19 ; * to your inbox within 20 minutes to two hours when purchased between 8am *
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20 ; * and 8pm GMT (although please allow up to 24 hours in case of *
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21 ; * exceptional circumstances). Thank you for your support! *
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23 ; ***************************************************************************
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25 ; This file is part of the FreeRTOS distribution.
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27 ; FreeRTOS is free software; you can redistribute it and/or modify it under
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28 ; the terms of the GNU General Public License (version 2) as published by the
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29 ; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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30 ; ***NOTE*** The exception to the GPL is included to allow you to distribute
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31 ; a combined work that includes FreeRTOS without being obliged to provide the
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32 ; source code for proprietary components outside of the FreeRTOS kernel.
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33 ; FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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34 ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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35 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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36 ; more details. You should have received a copy of the GNU General Public
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37 ; License and the FreeRTOS license exception along with FreeRTOS; if not it
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38 ; can be viewed here: http://www.freertos.org/a00114.html and also obtained
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39 ; by writing to Richard Barry, contact details for whom are available on the
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40 ; FreeRTOS WEB site.
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42 ; 1 tab == 4 spaces!
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44 ; http://www.FreeRTOS.org - Documentation, latest information, license and
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47 ; http://www.SafeRTOS.com - A version that is certified for use in safety
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50 ; http://www.OpenRTOS.com - Commercial support, development, porting,
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51 ; licensing and training services.
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53 #include "ISR_Support.h"
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54 ;------------------------------------------------------------------------------
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56 #if __CORE__ != __78K0R__
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57 #error "This file is only for 78K0R Devices"
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63 ; Functions implemented in this file
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64 ;------------------------------------------------------------------------------
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68 ; Functions used by scheduler
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69 ;------------------------------------------------------------------------------
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70 EXTERN vTaskSwitchContext
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71 EXTERN vTaskIncrementTick
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73 ; Tick ISR Prototype
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74 ;------------------------------------------------------------------------------
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75 ; EXTERN ?CL78K0R_V2_L00
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77 PUBWEAK `??MD_INTTM05??INTVEC 68`
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80 MD_INTTM05 SYMBOL "MD_INTTM05"
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81 `??MD_INTTM05??INTVEC 68` SYMBOL "??INTVEC 68", MD_INTTM05
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85 ;------------------------------------------------------------------------------
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86 ; Yield to another task. Implemented as a software interrupt. The return
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87 ; address and PSW will have been saved to the stack automatically before
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92 ; Call: CALL vPortYield
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96 ;------------------------------------------------------------------------------
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99 portSAVE_CONTEXT ; Save the context of the current task.
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100 call vTaskSwitchContext ; Call the scheduler to select the next task.
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101 portRESTORE_CONTEXT ; Restore the context of the next task to run.
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105 ;------------------------------------------------------------------------------
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106 ; Restore the context of the first task that is going to run.
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110 ; Call: CALL vPortStart
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114 ;------------------------------------------------------------------------------
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117 portRESTORE_CONTEXT ; Restore the context of whichever task the ...
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118 reti ; An interrupt stack frame is used so the task
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119 ; is started using a RETI instruction.
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121 ;------------------------------------------------------------------------------
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122 ; Perform the necessary steps of the Tick Count Increment and Task Switch
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123 ; depending on the chosen kernel configuration
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131 ;------------------------------------------------------------------------------
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135 portSAVE_CONTEXT ; Save the context of the current task.
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136 call vTaskIncrementTick ; Call the timer tick function.
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137 #if configUSE_PREEMPTION == 1
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138 call vTaskSwitchContext ; Call the scheduler to select the next task.
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140 portRESTORE_CONTEXT ; Restore the context of the next task to run.
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145 ; REQUIRE ?CL78K0R_V2_L00
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146 COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table.
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148 `??MD_INTTM05??INTVEC 68`:
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151 COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table.
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153 `??vPortYield??INTVEC 126`:
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156 ; Set value for the usCriticalNesting.
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157 RSEG NEAR_ID:CONST:SORT:NOROOT(1)
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158 `?<Initializer for usCriticalNesting>`:
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