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/*  set_vector

 *

 *  This routine installs an interrupt vector on the SPARC simulator.

 *

 *  INPUT PARAMETERS:

 *    handler - interrupt handler entry point

 *    vector  - vector number

 *    type    - 0 indicates raw hardware connect

 *              1 indicates RTEMS interrupt connect

 *

 *  OUTPUT PARAMETERS:  NONE

 *

 *  RETURNS:

 *    address of previous interrupt handler

 *

 *  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.

 *

 *  Ported to ERC32 implementation of the SPARC by On-Line Applications

 *  Research Corporation (OAR) under contract to the European Space

 *  Agency (ESA).

 *

 *  ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.

 *  European Space Agency.

 *

 *  $Id: setvec.c,v 1.2 2001-09-27 12:01:14 chris Exp $

 */

#include <bsp.h>

rtems_isr_entry set_vector(                   /* returns old vector */

  rtems_isr_entry     handler,                /* isr routine        */

  rtems_vector_number vector,                 /* vector number      */

  int                 type                    /* RTEMS or RAW intr  */

)

{

  rtems_isr_entry previous_isr;

  unsigned32      real_trap;

  unsigned32      source;

  if ( type )

    rtems_interrupt_catch( handler, vector, &previous_isr );

  else

    _CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr );

  real_trap = SPARC_REAL_TRAP_NUMBER( vector );

  if ( ERC32_Is_MEC_Trap( real_trap ) ) {

    source = ERC32_TRAP_SOURCE( real_trap );

    ERC32_Clear_interrupt( source );

    ERC32_Unmask_interrupt( source );

  }

  return previous_isr;

}