cpu/nios2/traps.c

   1 /*
   2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
   3  * Scott McNutt <smcnutt@psyent.com>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <asm/ptrace.h>
  25 #include <common.h>
  26
  27 void trap_handler (struct pt_regs *regs)
  28 {
  29         /* Just issue warning */
  30         printf ("\n\n*** WARNING: unimplemented trap @ %08x\n\n",
  31                         regs->reg[29] - 4);
  32 }
  33
  34 void soft_emulation (struct pt_regs *regs)
  35 {
  36         /* TODO: Software emulation of mul/div etc. Until this is
  37          * implemented, generate warning and hang.
  38          */
  39         printf ("\n\n*** ERROR: unimplemented instruction @ %08x\n",
  40                         regs->reg[29] - 4);
  41         hang ();
  42 }