;/*
;	FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
;
;	This file is part of the FreeRTOS.org distribution.
;
;	FreeRTOS.org is free software; you can redistribute it and/or modify
;	it under the terms of the GNU General Public License as published by
;	the Free Software Foundation; either version 2 of the License, or
;	(at your option) any later version.
; 
;	FreeRTOS.org is distributed in the hope that it will be useful,
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;	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
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;	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
;
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;	a combined work that includes FreeRTOS.org, without being obliged to provide
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;	of http://www.FreeRTOS.org for full details of how and when the exception
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;
;   ***************************************************************************
;   ***************************************************************************
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;
;	Please ensure to read the configuration and relevant port sections of the
;	online documentation.
;
;	http://www.FreeRTOS.org - Documentation, latest information, license and 
;	contact details.
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;*/		
		
	INCLUDE portmacro.inc
	
	;The UART interrupt entry point is defined within an assembly wrapper
	;within this file.  This takes care of the task context saving before it
	;calls the main handler (vUART_ISRHandler()) which is written in C within
	;serial.c.  The execution of the handler can unblock tasks that were blocked
	;waiting for UART events.  Once the handler completes the asm wrapper 
	;finishes off by	restoring the context of whichever task is now selected to 
	;enter the RUNNING state (which might now be a different task to that which
	;was originally interrupted.
	IMPORT vUART_ISRHandler
	EXPORT vUART_ISREntry

	;/* Interrupt entry must always be in ARM mode. */
	ARM
	AREA	|.text|, CODE, READONLY


vUART_ISREntry

	PRESERVE8

	; Save the context of the interrupted task.
	portSAVE_CONTEXT			

	; Call the C handler function - defined within serial.c.
	LDR R0, =vUART_ISRHandler
	MOV LR, PC				
	BX R0

	; Finish off by restoring the context of the task that has been chosen to 
	; run next - which might be a different task to that which was originally
	; interrupted.
	portRESTORE_CONTEXT

	END