projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a8fd2d0d KM |
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 | * %sccs.include.redist.c% | |
| 11 | * | |
| 12 | * from: Utah $Hdr: machdep.c 1.6 88/05/24$ | |
| 13 | * | |
| 14 | * @(#)machdep.c 7.1 (Berkeley) %G% | |
| 15 | */ | |
| 16 | ||
| 17 | #include "param.h" | |
| 18 | ||
| 19 | /* | |
| 20 | * Copy bytes within kernel | |
| 21 | */ | |
| 22 | bcopy(from, to, count) | |
| 23 | register caddr_t from, to; | |
| 24 | register unsigned count; | |
| 25 | { | |
| 26 | while (count--) | |
| 27 | *to++ = *from++; | |
| 28 | } | |
| 29 | ||
| 30 | bzero(to, count) | |
| 31 | register caddr_t to; | |
| 32 | register unsigned count; | |
| 33 | { | |
| 34 | while (count--) | |
| 35 | *to++ = 0; | |
| 36 | } | |
| 37 | ||
| 38 | bcmp(s1, s2, len) | |
| 39 | register char *s1, *s2; | |
| 40 | register int len; | |
| 41 | { | |
| 42 | while (len--) | |
| 43 | if (*s1++ != *s2++) | |
| 44 | return (1); | |
| 45 | return (0); | |
| 46 | } | |
| 47 | ||
| 48 | trap(fp) | |
| 49 | struct frame { | |
| 50 | int dregs[8]; | |
| 51 | int aregs[8]; | |
| 52 | int whoknows; | |
| 53 | short sr; | |
| 54 | int pc; | |
| 55 | short frame; | |
| 56 | } *fp; | |
| 57 | { | |
| 58 | static int intrap = 0; | |
| 59 | ||
| 60 | if (intrap) | |
| 61 | return; | |
| 62 | intrap = 1; | |
| 63 | romprintf("Got unexpected trap, vector = %x, ps = %x, pc = %x\n", | |
| 64 | fp->frame&0xFFF, fp->sr, fp->pc); | |
| 65 | romprintf("dregs: %x %x %x %x %x %x %x %x\n", | |
| 66 | fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3], | |
| 67 | fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]); | |
| 68 | romprintf("aregs: %x %x %x %x %x %x %x %x\n", | |
| 69 | fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3], | |
| 70 | fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]); | |
| 71 | intrap = 0; | |
| 72 | } | |
| 73 | ||
| 74 | nodev() | |
| 75 | { | |
| 76 | return(0); | |
| 77 | } | |
| 78 | ||
| 79 | #ifdef ROMPRF | |
| 80 | #define ROWS 46 | |
| 81 | #define COLS 128 | |
| 82 | ||
| 83 | romputchar(c) | |
| 84 | register int c; | |
| 85 | { | |
| 86 | static char buf[COLS]; | |
| 87 | static int col = 0, row = 0; | |
| 88 | register int i; | |
| 89 | ||
| 90 | switch (c) { | |
| 91 | case '\0': | |
| 92 | break; | |
| 93 | case '\r': | |
| 94 | case '\n': | |
| 95 | for (i = col; i < COLS-1; i++) | |
| 96 | buf[i] = ' '; | |
| 97 | buf[i] = '\0'; | |
| 98 | romout(row, buf); | |
| 99 | col = 0; | |
| 100 | if (++row == ROWS) | |
| 101 | row = 0; | |
| 102 | break; | |
| 103 | ||
| 104 | case '\t': | |
| 105 | do { | |
| 106 | romputchar(' '); | |
| 107 | } while (col & 7); | |
| 108 | break; | |
| 109 | ||
| 110 | default: | |
| 111 | buf[col] = c; | |
| 112 | if (++col == COLS-1) | |
| 113 | romputchar('\n'); | |
| 114 | break; | |
| 115 | } | |
| 116 | } | |
| 117 | #endif |