Subversion Repositories openrisc_2011-10-31

/*  timer_isr()

 *

 *  This routine provides the ISR for the PCC timer on the MVME147

 *  board.   The timer is set up to generate an interrupt at maximum

 *  intervals.

 *

 *  MVME147 port for TNI - Telecom Bretagne

 *  by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)

 *  May 1996

 *

 *  $Id: timerisr.S,v 1.2 2001-09-27 12:00:16 chris Exp $

 */

#include "asm.h"

BEGIN_CODE

.set T1_CONTROL_REGISTER,  0xfffe1018    | timer 1 control register

        PUBLIC (timerisr)

SYM (timerisr):

        orb     #0x80, T1_CONTROL_REGISTER | clear T1 int status bit

        addql   #1, SYM (Ttimer_val)     | increment timer value

end_timerisr:

        rte

END_CODE

END