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Annotation of Net2/arch/hp300/stand/machdep.c, revision 1.1.1.1

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:  *
                     40:  *     @(#)machdep.c   7.4 (Berkeley) 5/5/91
                     41:  */
                     42: 
                     43: #include "sys/param.h"
                     44: 
                     45: /*
                     46:  * Copy bytes within kernel
                     47:  */
                     48: bcopy(from, to, count)
                     49:        register caddr_t from, to;
                     50:        register unsigned count;
                     51: {
                     52:        while (count--)
                     53:                *to++ = *from++;
                     54: }
                     55: 
                     56: bzero(to, count)
                     57:        register caddr_t to;
                     58:        register unsigned count;
                     59: {
                     60:        while (count--)
                     61:                *to++ = 0;
                     62: }
                     63: 
                     64: bcmp(s1, s2, len)
                     65:        register char *s1, *s2;
                     66:        register int len;
                     67: {
                     68:        while (len--)
                     69:                if (*s1++ != *s2++)
                     70:                        return (1);
                     71:        return (0);
                     72: }
                     73: 
                     74: trap(fp)
                     75:  struct frame {
                     76:         int dregs[8];
                     77:         int aregs[8];
                     78:         int whoknows;
                     79:         short sr;
                     80:         int pc;
                     81:         short frame;
                     82:  } *fp;
                     83: {
                     84:        static int intrap = 0;
                     85: 
                     86:        if (intrap)
                     87:                return;
                     88:        intrap = 1;
                     89:        printf("Got unexpected trap, vector = %x, ps = %x, pc = %x\n",
                     90:               fp->frame&0xFFF, fp->sr, fp->pc);
                     91:        printf("dregs: %x %x %x %x %x %x %x %x\n",
                     92:               fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3], 
                     93:               fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
                     94:        printf("aregs: %x %x %x %x %x %x %x %x\n",
                     95:               fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3], 
                     96:               fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
                     97:        intrap = 0;
                     98: }
                     99: 
                    100: #ifdef ROMPRF
                    101: #define ROWS   46
                    102: #define COLS   128
                    103: 
                    104: romputchar(c)
                    105:  register int c;
                    106: {
                    107:        static char buf[COLS];
                    108:        static int col = 0, row = 0;
                    109:        register int i;
                    110: 
                    111:        switch (c) {
                    112:        case '\0':
                    113:                break;
                    114:        case '\r':
                    115:        case '\n':
                    116:                for (i = col; i < COLS-1; i++)
                    117:                        buf[i] = ' ';
                    118:                buf[i] = '\0';
                    119:                romout(row, buf);
                    120:                col = 0;
                    121:                if (++row == ROWS)
                    122:                        row = 0;
                    123:                break;
                    124: 
                    125:        case '\t':
                    126:                do {
                    127:                        romputchar(' ');
                    128:                } while (col & 7);
                    129:                break;
                    130: 
                    131:        default:
                    132:                buf[col] = c;
                    133:                if (++col == COLS-1)
                    134:                        romputchar('\n');
                    135:                break;
                    136:        }
                    137: }
                    138: #endif

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