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Annotation of Net2/arch/hp300/stand/machdep.c, revision 1.1.1.2

1.1       root        1: /*
                      2:  * Copyright (c) 1988 University of Utah.
                      3:  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
                      4:  * All rights reserved.
                      5:  *
                      6:  * This code is derived from software contributed to Berkeley by
                      7:  * the Systems Programming Group of the University of Utah Computer
                      8:  * Science Department.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the University of
                     21:  *     California, Berkeley and its contributors.
                     22:  * 4. Neither the name of the University nor the names of its contributors
                     23:  *    may be used to endorse or promote products derived from this software
                     24:  *    without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36:  * SUCH DAMAGE.
                     37:  *
                     38:  * from: Utah $Hdr: machdep.c 1.6 88/05/24$
                     39:  *
1.1.1.2 ! root       40:  *     from: @(#)machdep.c     7.4 (Berkeley) 5/5/91
        !            41:  *     machdep.c,v 1.2 1993/05/22 07:59:10 cgd Exp
1.1       root       42:  */
                     43: 
                     44: #include "sys/param.h"
                     45: 
                     46: /*
                     47:  * Copy bytes within kernel
                     48:  */
                     49: bcopy(from, to, count)
                     50:        register caddr_t from, to;
                     51:        register unsigned count;
                     52: {
                     53:        while (count--)
                     54:                *to++ = *from++;
                     55: }
                     56: 
                     57: bzero(to, count)
                     58:        register caddr_t to;
                     59:        register unsigned count;
                     60: {
                     61:        while (count--)
                     62:                *to++ = 0;
                     63: }
                     64: 
                     65: bcmp(s1, s2, len)
                     66:        register char *s1, *s2;
                     67:        register int len;
                     68: {
                     69:        while (len--)
                     70:                if (*s1++ != *s2++)
                     71:                        return (1);
                     72:        return (0);
                     73: }
                     74: 
                     75: trap(fp)
                     76:  struct frame {
                     77:         int dregs[8];
                     78:         int aregs[8];
                     79:         int whoknows;
                     80:         short sr;
                     81:         int pc;
                     82:         short frame;
                     83:  } *fp;
                     84: {
                     85:        static int intrap = 0;
                     86: 
                     87:        if (intrap)
                     88:                return;
                     89:        intrap = 1;
                     90:        printf("Got unexpected trap, vector = %x, ps = %x, pc = %x\n",
                     91:               fp->frame&0xFFF, fp->sr, fp->pc);
                     92:        printf("dregs: %x %x %x %x %x %x %x %x\n",
                     93:               fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3], 
                     94:               fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
                     95:        printf("aregs: %x %x %x %x %x %x %x %x\n",
                     96:               fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3], 
                     97:               fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
                     98:        intrap = 0;
                     99: }
                    100: 
                    101: #ifdef ROMPRF
                    102: #define ROWS   46
                    103: #define COLS   128
                    104: 
                    105: romputchar(c)
                    106:  register int c;
                    107: {
                    108:        static char buf[COLS];
                    109:        static int col = 0, row = 0;
                    110:        register int i;
                    111: 
                    112:        switch (c) {
                    113:        case '\0':
                    114:                break;
                    115:        case '\r':
                    116:        case '\n':
                    117:                for (i = col; i < COLS-1; i++)
                    118:                        buf[i] = ' ';
                    119:                buf[i] = '\0';
                    120:                romout(row, buf);
                    121:                col = 0;
                    122:                if (++row == ROWS)
                    123:                        row = 0;
                    124:                break;
                    125: 
                    126:        case '\t':
                    127:                do {
                    128:                        romputchar(' ');
                    129:                } while (col & 7);
                    130:                break;
                    131: 
                    132:        default:
                    133:                buf[col] = c;
                    134:                if (++col == COLS-1)
                    135:                        romputchar('\n');
                    136:                break;
                    137:        }
                    138: }
                    139: #endif

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