;/* | |
; FreeRTOS V6.1.0 - Copyright (C) 2010 Real Time Engineers Ltd. | |
; | |
; *************************************************************************** | |
; * * | |
; * If you are: * | |
; * * | |
; * + New to FreeRTOS, * | |
; * + Wanting to learn FreeRTOS or multitasking in general quickly * | |
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; * "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
; * http://www.FreeRTOS.org/Documentation * | |
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; *************************************************************************** | |
; | |
; 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 exception 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 | |
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; 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. | |
;*/ | |
; | |
; This file defines a wrapper for the interrupt generated each time the button | |
; on the target board is pushed. The asm wrapper is used to save and restore | |
; the task context as a context switch may occur within the ISR itself. | |
; The C portion of the ISR is defined within ButtonTask.c. | |
; | |
; Include the portSAVE_CONTEXT and portRESTORE_CONTEXT macros. | |
#include "ISR_Support.h" | |
PUBLIC vButtonISRWrapper | |
EXTERN vButtonISRHandler | |
RSEG CODE:CODE | |
vButtonISRWrapper: | |
; Save the current task context. | |
portSAVE_CONTEXT | |
; Call the C portion of the ISR. | |
call vButtonISRHandler | |
; Restore the context of whichever task is to run next - which might be | |
; different from the task that was originally interrupted. | |
portRESTORE_CONTEXT | |
reti | |
; Place the ISR into the vector table. | |
COMMON INTVEC:CODE:ROOT(1) | |
ORG 8 | |
`??vButtonISRWrapper??INTVEC 8`: | |
DW vButtonISRWrapper | |
END |