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