;/* | |
; FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd. | |
; | |
; | |
; *************************************************************************** | |
; * * | |
; * FreeRTOS tutorial books are available in pdf and paperback. * | |
; * Complete, revised, and edited pdf reference manuals are also * | |
; * available. * | |
; * * | |
; * Purchasing FreeRTOS documentation will not only help you, by * | |
; * ensuring you get running as quickly as possible and with an * | |
; * in-depth knowledge of how to use FreeRTOS, it will also help * | |
; * the FreeRTOS project to continue with its mission of providing * | |
; * professional grade, cross platform, de facto standard solutions * | |
; * for microcontrollers - completely free of charge! * | |
; * * | |
; * >>> See http://www.FreeRTOS.org/Documentation for details. <<< * | |
; * * | |
; * Thank you for using FreeRTOS, and thank you for your support! * | |
; * * | |
; *************************************************************************** | |
; | |
; | |
; This file is part of the FreeRTOS distribution. | |
; | |
; FreeRTOS is free software; you can redistribute it and/or modify it under | |
; the terms of the GNU General Public License (version 2) as published by the | |
; Free Software Foundation AND MODIFIED BY the FreeRTOS exception. | |
; >>>NOTE<<< The modification to the GPL is included to allow you to | |
; distribute a combined work that includes FreeRTOS without being obliged to | |
; provide the source code for proprietary components outside of the FreeRTOS | |
; kernel. FreeRTOS is distributed in the hope that it will be useful, but | |
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
; more details. You should have received a copy of the GNU General Public | |
; License and the FreeRTOS license exception along with FreeRTOS; if not it | |
; can be viewed here: http://www.freertos.org/a00114.html and also obtained | |
; by writing to Richard Barry, contact details for whom are available on the | |
; FreeRTOS WEB site. | |
; | |
; 1 tab == 4 spaces! | |
; | |
; http://www.FreeRTOS.org - Documentation, latest information, license and | |
; contact details. | |
; | |
; http://www.SafeRTOS.com - A version that is certified for use in safety | |
; critical systems. | |
; | |
; http://www.OpenRTOS.com - Commercial support, development, porting, | |
; licensing and training services. | |
;*/ | |
#include "ISR_Support.h" | |
;------------------------------------------------------------------------------ | |
#if __CORE__ != __78K0R__ | |
#error "This file is only for 78K0R Devices" | |
#endif | |
#define CS 0xFFFFC | |
#define ES 0xFFFFD | |
; Functions implemented in this file | |
;------------------------------------------------------------------------------ | |
PUBLIC vPortYield | |
PUBLIC vPortStart | |
; Functions used by scheduler | |
;------------------------------------------------------------------------------ | |
EXTERN vTaskSwitchContext | |
EXTERN vTaskIncrementTick | |
; Tick ISR Prototype | |
;------------------------------------------------------------------------------ | |
; EXTERN ?CL78K0R_V2_L00 | |
PUBWEAK `??MD_INTTM05??INTVEC 68` | |
PUBLIC MD_INTTM05 | |
MD_INTTM05 SYMBOL "MD_INTTM05" | |
`??MD_INTTM05??INTVEC 68` SYMBOL "??INTVEC 68", MD_INTTM05 | |
;------------------------------------------------------------------------------ | |
; Yield to another task. Implemented as a software interrupt. The return | |
; address and PSW will have been saved to the stack automatically before | |
; this code runs. | |
; | |
; Input: NONE | |
; | |
; Call: CALL vPortYield | |
; | |
; Output: NONE | |
; | |
;------------------------------------------------------------------------------ | |
RSEG CODE:CODE | |
vPortYield: | |
portSAVE_CONTEXT ; Save the context of the current task. | |
call vTaskSwitchContext ; Call the scheduler to select the next task. | |
portRESTORE_CONTEXT ; Restore the context of the next task to run. | |
retb | |
;------------------------------------------------------------------------------ | |
; Restore the context of the first task that is going to run. | |
; | |
; Input: NONE | |
; | |
; Call: CALL vPortStart | |
; | |
; Output: NONE | |
; | |
;------------------------------------------------------------------------------ | |
RSEG CODE:CODE | |
vPortStart: | |
portRESTORE_CONTEXT ; Restore the context of whichever task the ... | |
reti ; An interrupt stack frame is used so the task | |
; is started using a RETI instruction. | |
;------------------------------------------------------------------------------ | |
; Perform the necessary steps of the Tick Count Increment and Task Switch | |
; depending on the chosen kernel configuration | |
; | |
; Input: NONE | |
; | |
; Call: ISR | |
; | |
; Output: NONE | |
; | |
;------------------------------------------------------------------------------ | |
MD_INTTM05: | |
portSAVE_CONTEXT ; Save the context of the current task. | |
call vTaskIncrementTick ; Call the timer tick function. | |
#if configUSE_PREEMPTION == 1 | |
call vTaskSwitchContext ; Call the scheduler to select the next task. | |
#endif | |
portRESTORE_CONTEXT ; Restore the context of the next task to run. | |
reti | |
; REQUIRE ?CL78K0R_V2_L00 | |
COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table. | |
ORG 68 | |
`??MD_INTTM05??INTVEC 68`: | |
DW MD_INTTM05 | |
COMMON INTVEC:CODE:ROOT(1) ; Set ISR location to the Interrupt vector table. | |
ORG 126 | |
`??vPortYield??INTVEC 126`: | |
DW vPortYield | |
; Set value for the usCriticalNesting. | |
RSEG NEAR_ID:CONST:SORT:NOROOT(1) | |
`?<Initializer for usCriticalNesting>`: | |
DW 10 | |
;#endif | |
END |