Subversion Repositories openrisc

;/*
;    FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
;
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;
; 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