Home | History | Annotate | Line # | Download | only in common
machdep.c revision 1.3 
      1 /*	$NetBSD: machdep.c,v 1.3 1997/05/12 07:53:02 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1982, 1986, 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah $Hdr: machdep.c 1.10 92/06/18
     41  *
     42  *	@(#)machdep.c	8.1 (Berkeley) 6/10/93
     43  */
     44 
     45 #include <sys/param.h>
     46 #include <hp300/stand/common/samachdep.h>
     47 
     48 char *
     49 getmachineid()
     50 {
     51 	extern int machineid;
     52 	char *cp;
     53 
     54 	switch (machineid) {
     55 	case HP_320:
     56 		cp = "320"; break;
     57 	case HP_330:
     58 		cp = "318/319/330"; break;
     59 	case HP_340:
     60 		cp = "340"; break;
     61 	case HP_345:
     62 		cp = "345"; break;
     63 	case HP_350:
     64 		cp = "350"; break;
     65 	case HP_360:
     66 		cp = "360"; break;
     67 	case HP_370:
     68 		cp = "370"; break;
     69 	case HP_375:
     70 		cp = "375"; break;
     71 	case HP_380:
     72 		cp = "380"; break;
     73 	case HP_400:
     74 		cp = "400"; break;
     75 	case HP_425:
     76 		cp = "425"; break;
     77 	case HP_433:
     78 		cp = "433"; break;
     79 	default:
     80 		cp = "???"; break;
     81 	}
     82 	return(cp);
     83 }
     84 
     85 int userom;
     86 
     87 struct trapframe {
     88 	int dregs[8];
     89 	int aregs[8];
     90 	int whoknows;
     91 	short sr;
     92 	int pc;
     93 	short frame;
     94 };
     95 
     96 trap(fp)
     97 	struct trapframe *fp;
     98 {
     99 	static int intrap = 0;
    100 
    101 	if (intrap)
    102 		return(0);
    103 	intrap = 1;
    104 
    105 #if 0
    106 	userom = 1;
    107 #endif
    108 
    109 	printf("Got unexpected trap: format=%x vector=%x ps=%x pc=%x\n",
    110 		  (fp->frame>>12)&0xF, fp->frame&0xFFF, fp->sr, fp->pc);
    111 	printf("dregs: %x %x %x %x %x %x %x %x\n",
    112 	       fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3],
    113 	       fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
    114 	printf("aregs: %x %x %x %x %x %x %x %x\n",
    115 	       fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3],
    116 	       fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
    117 
    118 #if 0
    119 	userom = 0;
    120 #endif
    121 
    122 	intrap = 0;
    123 	return(0);
    124 }
    125 
    126 #define ROWS	24
    127 #define COLS	80
    128 
    129 void
    130 romputchar(c)
    131 	int c;
    132 {
    133 	static char buf[COLS];
    134 	static int col = 0, row = 0;
    135 	int i;
    136 
    137 	switch (c) {
    138 	case '\0':
    139 		break;
    140 	case '\r':
    141 		break;	/* ignore */
    142 	case '\n':
    143 		for (i = col; i < COLS-1; i++)
    144 			buf[i] = ' ';
    145 		buf[i] = '\0';
    146 		romout(row, buf);
    147 		col = 0;
    148 		if (++row == ROWS)
    149 			row = 0;
    150 		break;
    151 
    152 	case '\t':
    153 		do {
    154 			romputchar(' ');
    155 		} while (col & 7);
    156 		break;
    157 
    158 	default:
    159 		buf[col] = c;
    160 		if (++col == COLS-1)
    161 			romputchar('\n');
    162 		break;
    163 	}
    164 }
    165 
    166 void
    167 machdep_start(entry, howto, loadaddr, ssym, esym)
    168 	char *entry;
    169 	int howto;
    170 	char *loadaddr;
    171 	char *ssym, *esym;
    172 {
    173 
    174 	asm("movl %0,d7" : : "m" (howto));
    175 	asm("movl %0,d6" : : "m" (opendev));
    176 	asm("movl %0,d5" : : "m" (cons_scode));
    177 	asm("movl %0,a5" : : "a" (loadaddr));
    178 	asm("movl %0,a4" : : "a" (esym));
    179 	(*((int (*)())entry))();
    180 }
    181