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/* timerisr.s
*
* If required this ISR is used to bump a count of interval "overflow"
* interrupts which have occurred since the timer was started. The
* number of overflows is taken into account in the Read_timer()
* routine if necessary.
*
* To reduce overhead this is best to be the "rawest" hardware interupt
* handler you can write. This should be the only interrupt which can
* occur during the measured time period.
*
* NOTE: This file is USUALLY in assembly and is LEAN AND MEAN.
* Any code in this isr is pure overhead which can perturb
* the accuracy of the Timing Test Suite.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems.h>
extern rtems_unsigned32 _Timer_interrupts;
void timerisr( void )
{
/*
* _Timer_interrupts += TIMER_BETWEEN_OVERFLOWS (usually in microseconds)
* return from interrupt
*/
}
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