source: umon/ports/template/except_template.c @ ddf6706

/* except_template.c:
 *      This code handles exceptions that are caught by the exception vectors
 *      that have been installed by the monitor through vinit().  It is likely
 *      that there is already a version of this function available for the CPU
 *      being ported to, so check the cpu directory prior to porting this to a
 *      new target.
 *
 *      General notice:
 *      This code is part of a boot-monitor package developed as a generic base
 *      platform for embedded system designs.  As such, it is likely to be
 *      distributed to various projects beyond the control of the original
 *      author.  Please notify the author of any enhancements made or bugs found
 *      so that all may benefit from the changes.  In addition, notification back
 *      to the author will allow the new user to pick up changes that may have
 *      been made by other users after this version of the code was distributed.
 *
 *      Author: Ed Sutter
 *      email:  esutter@lucent.com
 *      phone:  908-582-2351            
 */
#include "config.h"
#include "cpu.h"
#include "cpuio.h"
#include "genlib.h"
#include "stddefs.h"
#include "warmstart.h"

ulong   ExceptionAddr;
int             ExceptionType;

/* exception():
 * This is the first 'C' function called out of a monitor-installed
 * exception handler. 
 */
void
exception(void)
{
        /* ADD_CODE_HERE */

        /* Populating these two values is target specific.
         * Refer to other target-specific examples for details.
         * In some cases, these values are extracted from registers
         * already put into the register cache by the lower-level
         * portion of the exception handler in vectors_template.s
         */
        ExceptionAddr = 0;
        ExceptionType = 0;

        /* Allow the console uart fifo to empty...
         */
        flush_console_out();
        monrestart(EXCEPTION);
}

/* vinit():
 * This function is called by init1() at startup of the monitor to
 * install the monitor-based vector table.  The actual functions are
 * in vectors.s.
 */
void
vinit()
{
        /* ADD_CODE_HERE */
}

/* ExceptionType2String():
 * This function simply returns a string that verbosely describes
 * the incoming exception type (vector number).
 */
char *
ExceptionType2String(int type)
{
        char *string;

        /* ADD_CODE_HERE */
        return(string);
}