xref: /csrg-svn/sys/hp300/stand/machdep.c (revision 63165)
141488Smckusick /*
241488Smckusick  * Copyright (c) 1988 University of Utah.
3*63165Sbostic  * Copyright (c) 1982, 1986, 1990, 1993
4*63165Sbostic  *	The Regents of the University of California.  All rights reserved.
541488Smckusick  *
641488Smckusick  * This code is derived from software contributed to Berkeley by
741488Smckusick  * the Systems Programming Group of the University of Utah Computer
841488Smckusick  * Science Department.
941488Smckusick  *
1041488Smckusick  * %sccs.include.redist.c%
1141488Smckusick  *
1254073Shibler  * from: Utah $Hdr: machdep.c 1.10 92/06/18
1341488Smckusick  *
14*63165Sbostic  *	@(#)machdep.c	8.1 (Berkeley) 06/10/93
1541488Smckusick  */
1641488Smckusick 
1756510Sbostic #include <sys/param.h>
1841488Smckusick 
1941488Smckusick /*
2041488Smckusick  * Copy bytes within kernel
2141488Smckusick  */
bcopy(from,to,count)2241488Smckusick bcopy(from, to, count)
2341488Smckusick 	register caddr_t from, to;
2441488Smckusick 	register unsigned count;
2541488Smckusick {
2641488Smckusick 	while (count--)
2741488Smckusick 		*to++ = *from++;
2841488Smckusick }
2941488Smckusick 
bzero(to,count)3041488Smckusick bzero(to, count)
3141488Smckusick 	register caddr_t to;
3241488Smckusick 	register unsigned count;
3341488Smckusick {
3441488Smckusick 	while (count--)
3541488Smckusick 		*to++ = 0;
3641488Smckusick }
3741488Smckusick 
bcmp(s1,s2,len)3841488Smckusick bcmp(s1, s2, len)
3941488Smckusick 	register char *s1, *s2;
4041488Smckusick 	register int len;
4141488Smckusick {
4241488Smckusick 	while (len--)
4341488Smckusick 		if (*s1++ != *s2++)
4441488Smckusick 			return (1);
4541488Smckusick 	return (0);
4641488Smckusick }
4741488Smckusick 
4854073Shibler #ifdef ROMPRF
4954073Shibler int userom;
5054073Shibler #endif
5154073Shibler 
5259344Shibler struct trapframe {
5359344Shibler 	int dregs[8];
5459344Shibler 	int aregs[8];
5559344Shibler 	int whoknows;
5659344Shibler 	short sr;
5759344Shibler 	int pc;
5859344Shibler 	short frame;
5959344Shibler };
6059344Shibler 
6141488Smckusick trap(fp)
6259344Shibler 	struct trapframe *fp;
6341488Smckusick {
6441488Smckusick 	static int intrap = 0;
6541488Smckusick 
6641488Smckusick 	if (intrap)
6754073Shibler 		return(0);
6841488Smckusick 	intrap = 1;
6954073Shibler #ifdef ROMPRF
7054073Shibler 	userom = 1;
7154073Shibler #endif
7254073Shibler 	printf("Got unexpected trap: format=%x vector=%x ps=%x pc=%x\n",
7354073Shibler 		  (fp->frame>>12)&0xF, fp->frame&0xFFF, fp->sr, fp->pc);
7449161Sbostic 	printf("dregs: %x %x %x %x %x %x %x %x\n",
7541488Smckusick 	       fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3],
7641488Smckusick 	       fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
7749161Sbostic 	printf("aregs: %x %x %x %x %x %x %x %x\n",
7841488Smckusick 	       fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3],
7941488Smckusick 	       fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
8054073Shibler #ifdef ROMPRF
8154073Shibler 	userom = 0;
8254073Shibler #endif
8341488Smckusick 	intrap = 0;
8454073Shibler 	return(0);
8541488Smckusick }
8641488Smckusick 
8741488Smckusick #ifdef ROMPRF
8841488Smckusick #define ROWS	46
8941488Smckusick #define COLS	128
9041488Smckusick 
romputchar(c)9141488Smckusick romputchar(c)
9254073Shibler 	register int c;
9341488Smckusick {
9441488Smckusick 	static char buf[COLS];
9541488Smckusick 	static int col = 0, row = 0;
9641488Smckusick 	register int i;
9741488Smckusick 
9841488Smckusick 	switch (c) {
9941488Smckusick 	case '\0':
10041488Smckusick 		break;
10141488Smckusick 	case '\r':
10254073Shibler 		break;	/* ignore */
10341488Smckusick 	case '\n':
10441488Smckusick 		for (i = col; i < COLS-1; i++)
10541488Smckusick 			buf[i] = ' ';
10641488Smckusick 		buf[i] = '\0';
10741488Smckusick 		romout(row, buf);
10841488Smckusick 		col = 0;
10941488Smckusick 		if (++row == ROWS)
11041488Smckusick 			row = 0;
11141488Smckusick 		break;
11241488Smckusick 
11341488Smckusick 	case '\t':
11441488Smckusick 		do {
11541488Smckusick 			romputchar(' ');
11641488Smckusick 		} while (col & 7);
11741488Smckusick 		break;
11841488Smckusick 
11941488Smckusick 	default:
12041488Smckusick 		buf[col] = c;
12141488Smckusick 		if (++col == COLS-1)
12241488Smckusick 			romputchar('\n');
12341488Smckusick 		break;
12441488Smckusick 	}
12541488Smckusick }
12641488Smckusick #endif
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