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157 lines
5.4 KiB
Plaintext
157 lines
5.4 KiB
Plaintext
;/*
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; FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
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;
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; This file is part of the FreeRTOS distribution.
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;
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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 a
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; 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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; Alternative commercial license and support terms are also available upon
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; request. See the licensing section of http://www.FreeRTOS.org for full
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; license details.
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;
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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.
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;
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; You should have received a copy of the GNU General Public License along
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; with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
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; Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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;
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;
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; ***************************************************************************
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; * *
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; * Looking for a quick start? Then check out the FreeRTOS eBook! *
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; * See http://www.FreeRTOS.org/Documentation for details *
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; * *
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; ***************************************************************************
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;
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; 1 tab == 4 spaces!
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;
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; Please ensure to read the configuration and relevant port sections of the
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; online documentation.
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;
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; http://www.FreeRTOS.org - Documentation, latest information, license and
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; contact details.
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;
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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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;
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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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#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 vTaskIncrementTick
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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 vTaskIncrementTick ; 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 |