path: root/c/src/lib/libbsp/sparc/shared/cpu.c

/**
 *  @file
 *
 *  @brief SPARC CPU Dependent Source
 */

/*
 *  COPYRIGHT (c) 1989-2007.
 *  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.rtems.org/license/LICENSE.
 */

#include <rtems/score/cpu.h>

/*
 *  This initializes the set of opcodes placed in each trap
 *  table entry.  The routine which installs a handler is responsible
 *  for filling in the fields for the _handler address and the _vector
 *  trap type.
 *
 *  The constants following this structure are masks for the fields which
 *  must be filled in when the handler is installed.
 *
 *  This table is defined here to allow BSP specific versions, e.g. for guest
 *  systems under paravirtualization.
 */

const CPU_Trap_table_entry _CPU_Trap_slot_template = {
  0xa1480000,      /* mov   %psr, %l0           */
  0x29000000,      /* sethi %hi(_handler), %l4  */
  0x81c52000,      /* jmp   %l4 + %lo(_handler) */
  0xa6102000       /* mov   _vector, %l3        */
};