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Annotation of 43BSDReno/sys/hpstand/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 is only permitted until one year after the first shipment
                     11:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                     12:  * binary forms are permitted provided that: (1) source distributions retain
                     13:  * this entire copyright notice and comment, and (2) distributions including
                     14:  * binaries display the following acknowledgement:  This product includes
                     15:  * software developed by the University of California, Berkeley and its
                     16:  * contributors'' in the documentation or other materials provided with the
                     17:  * distribution and in all advertising materials mentioning features or use
                     18:  * of this software.  Neither the name of the University nor the names of
                     19:  * its contributors may be used to endorse or promote products derived from
                     20:  * this software without specific prior written permission.
                     21:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     22:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     23:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     24:  *
                     25:  * from: Utah $Hdr: machdep.c 1.6 88/05/24$
                     26:  *
                     27:  *     @(#)machdep.c   7.1 (Berkeley) 5/8/90
                     28:  */
                     29: 
                     30: #include "param.h"
                     31: 
                     32: /*
                     33:  * Copy bytes within kernel
                     34:  */
                     35: bcopy(from, to, count)
                     36:        register caddr_t from, to;
                     37:        register unsigned count;
                     38: {
                     39:        while (count--)
                     40:                *to++ = *from++;
                     41: }
                     42: 
                     43: bzero(to, count)
                     44:        register caddr_t to;
                     45:        register unsigned count;
                     46: {
                     47:        while (count--)
                     48:                *to++ = 0;
                     49: }
                     50: 
                     51: bcmp(s1, s2, len)
                     52:        register char *s1, *s2;
                     53:        register int len;
                     54: {
                     55:        while (len--)
                     56:                if (*s1++ != *s2++)
                     57:                        return (1);
                     58:        return (0);
                     59: }
                     60: 
                     61: trap(fp)
                     62:  struct frame {
                     63:         int dregs[8];
                     64:         int aregs[8];
                     65:         int whoknows;
                     66:         short sr;
                     67:         int pc;
                     68:         short frame;
                     69:  } *fp;
                     70: {
                     71:        static int intrap = 0;
                     72: 
                     73:        if (intrap)
                     74:                return;
                     75:        intrap = 1;
                     76:        romprintf("Got unexpected trap, vector = %x, ps = %x, pc = %x\n",
                     77:               fp->frame&0xFFF, fp->sr, fp->pc);
                     78:        romprintf("dregs: %x %x %x %x %x %x %x %x\n",
                     79:               fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3], 
                     80:               fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
                     81:        romprintf("aregs: %x %x %x %x %x %x %x %x\n",
                     82:               fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3], 
                     83:               fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
                     84:        intrap = 0;
                     85: }
                     86: 
                     87: nodev()
                     88: {
                     89:        return(0);
                     90: }
                     91: 
                     92: #ifdef ROMPRF
                     93: #define ROWS   46
                     94: #define COLS   128
                     95: 
                     96: romputchar(c)
                     97:  register int c;
                     98: {
                     99:        static char buf[COLS];
                    100:        static int col = 0, row = 0;
                    101:        register int i;
                    102: 
                    103:        switch (c) {
                    104:        case '\0':
                    105:                break;
                    106:        case '\r':
                    107:        case '\n':
                    108:                for (i = col; i < COLS-1; i++)
                    109:                        buf[i] = ' ';
                    110:                buf[i] = '\0';
                    111:                romout(row, buf);
                    112:                col = 0;
                    113:                if (++row == ROWS)
                    114:                        row = 0;
                    115:                break;
                    116: 
                    117:        case '\t':
                    118:                do {
                    119:                        romputchar(' ');
                    120:                } while (col & 7);
                    121:                break;
                    122: 
                    123:        default:
                    124:                buf[col] = c;
                    125:                if (++col == COLS-1)
                    126:                        romputchar('\n');
                    127:                break;
                    128:        }
                    129: }
                    130: #endif

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