Annotation of sys/arch/hp300/stand/common/machdep.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: machdep.c,v 1.7 2006/08/17 06:31:10 miod Exp $ */
2: /* $NetBSD: machdep.c,v 1.4 1997/06/28 07:20:25 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1988 University of Utah.
6: * Copyright (c) 1982, 1986, 1990, 1993
7: * The Regents of the University of California. All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * the Systems Programming Group of the University of Utah Computer
11: * Science Department.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. Neither the name of the University nor the names of its contributors
22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
36: *
37: * from: Utah $Hdr: machdep.c 1.10 92/06/18
38: *
39: * @(#)machdep.c 8.1 (Berkeley) 6/10/93
40: */
41:
42: #include <sys/param.h>
43:
44: #include <lib/libsa/stand.h>
45:
46: #include "samachdep.h"
47:
48: char *
49: getmachineid()
50: {
51: extern int machineid, mmuid;
52: char *cp;
53:
54: switch (machineid) {
55: case HP_320:
56: cp = "320"; break;
57: case HP_330:
58: cp = "318/319/330"; break;
59: case HP_340:
60: cp = "340"; break;
61: case HP_345:
62: cp = "345"; break;
63: case HP_350:
64: cp = "350"; break;
65: case HP_360:
66: cp = "360"; break;
67: #if 0 /* bootblocks do not tell 360 apart from 362 at the moment */
68: case HP_362:
69: cp = "362"; break;
70: #endif
71: case HP_370:
72: cp = "370"; break;
73: case HP_375:
74: cp = "375"; break;
75: case HP_380:
76: cp = "380"; break;
77: case HP_382:
78: cp = "382"; break;
79: case HP_385:
80: cp = "385"; break;
81: case HP_400:
82: cp = "400"; break;
83: case HP_425:
84: switch (mmuid) {
85: case MMUID_425_T:
86: cp = "425t"; break;
87: case MMUID_425_S:
88: cp = "425s"; break;
89: case MMUID_425_E:
90: cp = "425e"; break;
91: default:
92: cp = "425"; break;
93: }
94: break;
95: case HP_433:
96: switch (mmuid) {
97: case MMUID_433_T:
98: cp = "433t"; break;
99: case MMUID_433_S:
100: cp = "433s"; break;
101: default:
102: cp = "433"; break;
103: }
104: break;
105: default:
106: cp = "???"; break;
107: }
108: return(cp);
109: }
110:
111: int userom;
112:
113: struct trapframe {
114: int dregs[8];
115: int aregs[8];
116: int whoknows;
117: short sr;
118: int pc;
119: short frame;
120: };
121:
122: int trap(struct trapframe *);
123:
124: int
125: trap(fp)
126: struct trapframe *fp;
127: {
128: static int intrap = 0;
129:
130: if (intrap)
131: return(0);
132: intrap = 1;
133:
134: #if 0
135: userom = 1;
136: #endif
137:
138: printf("Got unexpected trap: format=%x vector=%x ps=%x pc=%x\n",
139: (fp->frame>>12)&0xF, fp->frame&0xFFF, fp->sr, fp->pc);
140: printf("dregs: %x %x %x %x %x %x %x %x\n",
141: fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3],
142: fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
143: printf("aregs: %x %x %x %x %x %x %x %x\n",
144: fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3],
145: fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
146: printf("bytes at pc: %x %x %x %x %x %x\n",
147: ((char *)fp->pc)[0], ((char *)fp->pc)[1], ((char *)fp->pc)[2],
148: ((char *)fp->pc)[3], ((char *)fp->pc)[4], ((char *)fp->pc)[5]);
149:
150: #if 0
151: userom = 0;
152: #endif
153:
154: intrap = 0;
155:
156: return(0);
157: }
158:
159: #define ROWS 24
160: #define COLS 80
161:
162: void
163: romputchar(int c)
164: {
165: static char buf[COLS];
166: static int col = 0, row = 0;
167: int i;
168:
169: switch (c) {
170: case '\0':
171: break;
172: case '\r':
173: break; /* ignore */
174: case '\n':
175: for (i = col; i < COLS-1; i++)
176: buf[i] = ' ';
177: buf[i] = '\0';
178: romout(row, buf);
179: col = 0;
180: if (++row == ROWS)
181: row = 0;
182: break;
183:
184: case '\t':
185: do {
186: romputchar(' ');
187: } while (col & 7);
188: break;
189:
190: default:
191: buf[col] = c;
192: if (++col == COLS-1)
193: romputchar('\n');
194: break;
195: }
196: }
197:
198: void
199: machdep_start(char *entry, int howto, char *loadaddr, char *ssym, char *esym)
200: {
201: /* Fix what we were passed in from exec() */
202: entry = loadaddr;
203: #define round_to_size(x) (((int)(x) + sizeof(int) - 1) & ~(sizeof(int) - 1))
204: esym = (char *)round_to_size(esym - (char *)loadaddr);
205: #undef round_to_size
206:
207: __asm __volatile ("movl %0,d7" : : "m" (howto));
208: __asm __volatile ("movl %0,d6" : : "m" (opendev));
209: __asm __volatile ("movl %0,a5" : : "a" (loadaddr));
210: __asm __volatile ("movl %0,a4" : : "a" (esym));
211: (*((int (*)(void))entry))();
212: }
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