138 lines
4.6 KiB
Plaintext
138 lines
4.6 KiB
Plaintext
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;/*
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; * FreeRTOS Kernel V10.2.1
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; * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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; *
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; * Permission is hereby granted, free of charge, to any person obtaining a copy of
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; * this software and associated documentation files (the "Software"), to deal in
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; * the Software without restriction, including without limitation the rights to
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; * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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; * the Software, and to permit persons to whom the Software is furnished to do so,
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; * subject to the following conditions:
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; *
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; * The above copyright notice and this permission notice shall be included in all
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; * copies or substantial portions of the Software.
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; *
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; * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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; * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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; * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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; * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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; *
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; * http://www.FreeRTOS.org
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; * http://aws.amazon.com/freertos
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; *
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; * 1 tab == 4 spaces!
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; */
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#include "ISR_Support.h"
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;------------------------------------------------------------------------------
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#if __CORE__ != __78K0R__
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#error "This file is only for 78K0R Devices"
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#endif
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#define CS 0xFFFFC
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#define ES 0xFFFFD
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; Functions implemented in this file
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;------------------------------------------------------------------------------
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PUBLIC vPortYield
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PUBLIC vPortStart
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; Functions used by scheduler
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;------------------------------------------------------------------------------
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EXTERN vTaskSwitchContext
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EXTERN xTaskIncrementTick
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; Tick ISR Prototype
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;------------------------------------------------------------------------------
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; EXTERN ?CL78K0R_V2_L00
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PUBWEAK `??MD_INTTM05??INTVEC 68`
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PUBLIC MD_INTTM05
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MD_INTTM05 SYMBOL "MD_INTTM05"
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`??MD_INTTM05??INTVEC 68` SYMBOL "??INTVEC 68", MD_INTTM05
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;------------------------------------------------------------------------------
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; Yield to another task. Implemented as a software interrupt. The return
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; address and PSW will have been saved to the stack automatically before
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; this code runs.
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;
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; Input: NONE
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;
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; Call: CALL vPortYield
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;
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; Output: NONE
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;
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;------------------------------------------------------------------------------
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RSEG CODE:CODE
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vPortYield:
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portSAVE_CONTEXT ; Save the context of the current task.
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call vTaskSwitchContext ; Call the scheduler to select the next task.
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portRESTORE_CONTEXT ; Restore the context of the next task to run.
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retb
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;------------------------------------------------------------------------------
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; Restore the context of the first task that is going to run.
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;
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; Input: NONE
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;
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; Call: CALL vPortStart
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;
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; Output: NONE
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;
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;------------------------------------------------------------------------------
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RSEG CODE:CODE
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vPortStart:
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portRESTORE_CONTEXT ; Restore the context of whichever task the ...
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reti ; An interrupt stack frame is used so the task
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; is started using a RETI instruction.
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;------------------------------------------------------------------------------
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; Perform the necessary steps of the Tick Count Increment and Task Switch
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; depending on the chosen kernel configuration
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;
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; Input: NONE
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;
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; Call: ISR
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;
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; Output: NONE
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;
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;------------------------------------------------------------------------------
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MD_INTTM05:
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portSAVE_CONTEXT ; Save the context of the current task.
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call xTaskIncrementTick ; Call the timer tick function.
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#if configUSE_PREEMPTION == 1
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call vTaskSwitchContext ; Call the scheduler to select the next task.
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#endif
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portRESTORE_CONTEXT ; Restore the context of the next task to run.
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reti
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; REQUIRE ?CL78K0R_V2_L00
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COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table.
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ORG 68
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`??MD_INTTM05??INTVEC 68`:
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DW MD_INTTM05
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COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table.
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ORG 126
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`??vPortYield??INTVEC 126`:
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DW vPortYield
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; Set value for the usCriticalNesting.
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RSEG NEAR_ID:CONST:SORT:NOROOT(1)
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`?<Initializer for usCriticalNesting>`:
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DW 10
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;#endif
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END
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