date and time created 92/12/13 03:50:33 by akito

[unix-history] / usr / src / sys / luna68k / stand / trap.c

/*
* Copyright (c) 1992 OMRON Corporation.
* Copyright (c) 1992 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* OMRON Corporation.
*
* %sccs.include.redist.c%
*
*      @(#)trap.c      7.1 (Berkeley) %G%
*/

#include <sys/param.h>
#include <machine/frame.h>
#include <luna68k/stand/romvec.h>

#define USER    040             /* user-mode flag added to type */

char    *trap_type[] = {
       "Bus error",
       "Address error",
       "Illegal instruction",
       "Zero divide",
       "CHK instruction",
       "TRAPV instruction",
       "Privilege violation",
       "Trace trap",
       "MMU fault",
       "SSIR trap",
       "Format error",
       "68881 exception",
       "Coprocessor violation",
       "Async system trap"
};
#define TRAP_TYPES      (sizeof trap_type / sizeof trap_type[0])

/*
* Called from the trap handler when a processor trap occurs.
*/
/*ARGSUSED*/
trap(type, code, v, frame)
       int type;
       unsigned code;
       register unsigned v;
       struct frame frame;
{
       switch (type) {

       default:
dopanic:
               printf("trap type %d, code = %x, v = %x\n", type, code, v);
               regdump(frame.f_regs, 128);
               type &= ~USER;
               if ((unsigned)type < TRAP_TYPES)
                       panic(trap_type[type]);
               panic("trap");
       }
}