Beispiel #1
0
/**********************************************************************
 * 
 * Method:      Interrupt()
 *
 * Description: An interrupt handler for the timer hardware.
 *
 * Notes:       This method is declared static, so that we cannot 
 *              inadvertently modify any of the software timers.
 *
 * Returns:     None defined.
 *
 **********************************************************************/
void 
Timer::Interrupt()
{
    //
    // Decrement the active timer's count.
    //
    timerList.tick();

}   /* Interrupt() */
Beispiel #2
0
/**********************************************************************
 * 
 * Method:      Interrupt()
 *
 * Description: An interrupt handler for the timer hardware.
 *
 * Notes:       This method is declared static, so that we cannot 
 *              inadvertently modify any of the software timers.
 *
 * Returns:     None defined.
 *
 **********************************************************************/
void interrupt
Timer::Interrupt()
{
    //
    // Decrement the active timer's count.
    //
    timerList.tick();

    //
    // Acknowledge the timer interrupt.
    //
    gProcessor.pPCB->intControl.eoi = EOI_NONSPECIFIC;

    //
    // Clear the Maximum Count bit (to start the next cycle). 
    //
    gProcessor.pPCB->timer[2].control &= ~TIMER_MAXCOUNT;

}   /* Interrupt() */