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70 lines
2.5 KiB
Plaintext
70 lines
2.5 KiB
Plaintext
; FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
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;
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; This file is part of the FreeRTOS.org distribution.
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;
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; FreeRTOS.org is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; FreeRTOS.org is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with FreeRTOS.org; if not, write to the Free Software
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; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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;
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; A special exception to the GPL can be applied should you wish to distribute
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; a combined work that includes FreeRTOS.org, without being obliged to provide
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; the source code for any proprietary components. See the licensing section
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; of http://www.FreeRTOS.org for full details of how and when the exception
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; can be applied.
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;
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; ***************************************************************************
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; See http://www.FreeRTOS.org for documentation, latest information, license
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; and contact details. Please ensure to read the configuration and relevant
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; port sections of the online documentation.
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; ***************************************************************************
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;
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;------------------------------------------------------------------------------
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;
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; This file defines a wrapper for the interrupt generated each time the button
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; on the target board is pushed. The asm wrapper is used to save and restore
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; the task context as a context switch may occur within the ISR itself.
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; The C portion of the ISR is defined within ButtonTask.c.
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;
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; Include the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
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#include "ISR_Support.h"
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PUBLIC vButtonISRWrapper
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EXTERN vButtonISRHandler
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RSEG CODE:CODE
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vButtonISRWrapper:
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; Save the current task context.
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portSAVE_CONTEXT
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; Call the C portion of the ISR.
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call vButtonISRHandler
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; Restore the context of whichever task is to run next - which might be
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; different from the task that was originally interrupted.
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portRESTORE_CONTEXT
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reti
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; Place the ISR into the vector table.
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COMMON INTVEC:CODE:ROOT(1)
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ORG 8
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`??vButtonISRWrapper??INTVEC 8`:
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DW vButtonISRWrapper
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END
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