summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/cpu/i860/i860.c
blob: 86bfd4f24cebda6973970c696de2131303e5aed8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
/***************************************************************************

    i860.c

    Interface file for the Intel i860 emulator.

    Copyright (C) 1995-present Jason Eckhardt (jle@rice.edu)
    Released for general non-commercial use under the MAME license
    with the additional requirement that you are free to use and
    redistribute this code in modified or unmodified form, provided
    you list me in the credits.
    Visit http://mamedev.org for licensing and usage restrictions.

***************************************************************************/

/*
TODO: Separate out i860XR and i860XP (make different types, etc).
      Hook IRQ lines into MAME core (they're custom functions atm).
*/

#include "emu.h"
#include "debugger.h"
#include "i860.h"

/**************************************************************************
 * Functions specified by GET_INFO
 **************************************************************************/

static CPU_INIT( i860 )
{
	i860_state_t *cpustate = get_safe_token(device);
	cpustate->device = device;
	cpustate->program = device->space(AS_PROGRAM);
	reset_i860(cpustate);
	i860_set_pin(device, DEC_PIN_BUS_HOLD, 0);
	i860_set_pin(device, DEC_PIN_RESET, 0);
	cpustate->single_stepping = 0;

	device->save_item(NAME(cpustate->iregs));
	device->save_item(NAME(cpustate->cregs));
	device->save_item(NAME(cpustate->frg));
	device->save_item(NAME(cpustate->pc));
}

static CPU_RESET( i860 )
{
	i860_state_t *cpustate = get_safe_token(device);
	reset_i860(cpustate);
}


/***************************************************************************
 *  Disassembler hook
 ***************************************************************************/

static CPU_DISASSEMBLE( i860 )
{
	extern unsigned disasm_i860(char*, unsigned, UINT32);

	/* Hard-coded little endian for now.  */
	return disasm_i860(buffer, pc, (oprom[0] << 0)  |
								   (oprom[1] << 8)  |
								   (oprom[2] << 16) |
								   (oprom[3] << 24));
}


/**************************************************************************
 * The actual decode and execute code.
 **************************************************************************/
#include "i860dec.c"


/**************************************************************************
 * Generic set_info/get_info
 **************************************************************************/

#define CPU_SET_INFO_F(fnum) cpustate->frg[0+(4*fnum)] = (info->i & 0x000000ff);       \
							 cpustate->frg[1+(4*fnum)] = (info->i & 0x0000ff00) >> 8;  \
							 cpustate->frg[2+(4*fnum)] = (info->i & 0x00ff0000) >> 16; \
							 cpustate->frg[3+(4*fnum)] = (info->i & 0xff000000) >> 24;

static CPU_SET_INFO( i860 )
{
	i860_state_t *cpustate = get_safe_token(device);

	switch(state)
	{
		case CPUINFO_INT_PC:
		case CPUINFO_INT_REGISTER + I860_PC:		cpustate->pc = info->i & 0xffffffff;		break;

		case CPUINFO_INT_REGISTER + I860_FIR:		cpustate->cregs[CR_FIR] 	= info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_PSR:		cpustate->cregs[CR_PSR] 	= info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_DIRBASE:	cpustate->cregs[CR_DIRBASE] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_DB:		cpustate->cregs[CR_DB]		= info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_FSR:		cpustate->cregs[CR_FSR] 	= info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_EPSR:		cpustate->cregs[CR_EPSR]	= info->i & 0xffffffff;	break;

		case CPUINFO_INT_REGISTER + I860_R0:		cpustate->iregs[0]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R1:		cpustate->iregs[1]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R2:		cpustate->iregs[2]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R3:		cpustate->iregs[3]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R4:		cpustate->iregs[4]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R5:		cpustate->iregs[5]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R6:		cpustate->iregs[6]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R7:		cpustate->iregs[7]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R8:		cpustate->iregs[8]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R9:		cpustate->iregs[9]  = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R10:		cpustate->iregs[10] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R11:		cpustate->iregs[11] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R12:		cpustate->iregs[12] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R13:		cpustate->iregs[13] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R14:		cpustate->iregs[14] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R15:		cpustate->iregs[15] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R16:		cpustate->iregs[16] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R17:		cpustate->iregs[17] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R18:		cpustate->iregs[18] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R19:		cpustate->iregs[19] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R20:		cpustate->iregs[20] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R21:		cpustate->iregs[21] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R22:		cpustate->iregs[22] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R23:		cpustate->iregs[23] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R24:		cpustate->iregs[24] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R25:		cpustate->iregs[25] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R26:		cpustate->iregs[26] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R27:		cpustate->iregs[27] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R28:		cpustate->iregs[28] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R29:		cpustate->iregs[29] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R30:		cpustate->iregs[30] = info->i & 0xffffffff;	break;
		case CPUINFO_INT_REGISTER + I860_R31:		cpustate->iregs[31] = info->i & 0xffffffff;	break;

		case CPUINFO_INT_REGISTER + I860_F0:		CPU_SET_INFO_F(0);	break;
		case CPUINFO_INT_REGISTER + I860_F1:		CPU_SET_INFO_F(1);	break;
		case CPUINFO_INT_REGISTER + I860_F2:		CPU_SET_INFO_F(2);	break;
		case CPUINFO_INT_REGISTER + I860_F3:		CPU_SET_INFO_F(3);	break;
		case CPUINFO_INT_REGISTER + I860_F4:		CPU_SET_INFO_F(4);	break;
		case CPUINFO_INT_REGISTER + I860_F5:		CPU_SET_INFO_F(5);	break;
		case CPUINFO_INT_REGISTER + I860_F6:		CPU_SET_INFO_F(6);	break;
		case CPUINFO_INT_REGISTER + I860_F7:		CPU_SET_INFO_F(7);	break;
		case CPUINFO_INT_REGISTER + I860_F8:		CPU_SET_INFO_F(8);	break;
		case CPUINFO_INT_REGISTER + I860_F9:		CPU_SET_INFO_F(9);	break;
		case CPUINFO_INT_REGISTER + I860_F10:		CPU_SET_INFO_F(10);	break;
		case CPUINFO_INT_REGISTER + I860_F11:		CPU_SET_INFO_F(11);	break;
		case CPUINFO_INT_REGISTER + I860_F12:		CPU_SET_INFO_F(12);	break;
		case CPUINFO_INT_REGISTER + I860_F13:		CPU_SET_INFO_F(13);	break;
		case CPUINFO_INT_REGISTER + I860_F14:		CPU_SET_INFO_F(14);	break;
		case CPUINFO_INT_REGISTER + I860_F15:		CPU_SET_INFO_F(15);	break;
		case CPUINFO_INT_REGISTER + I860_F16:		CPU_SET_INFO_F(16);	break;
		case CPUINFO_INT_REGISTER + I860_F17:		CPU_SET_INFO_F(17);	break;
		case CPUINFO_INT_REGISTER + I860_F18:		CPU_SET_INFO_F(18);	break;
		case CPUINFO_INT_REGISTER + I860_F19:		CPU_SET_INFO_F(19);	break;
		case CPUINFO_INT_REGISTER + I860_F20:		CPU_SET_INFO_F(20);	break;
		case CPUINFO_INT_REGISTER + I860_F21:		CPU_SET_INFO_F(21);	break;
		case CPUINFO_INT_REGISTER + I860_F22:		CPU_SET_INFO_F(22);	break;
		case CPUINFO_INT_REGISTER + I860_F23:		CPU_SET_INFO_F(23);	break;
		case CPUINFO_INT_REGISTER + I860_F24:		CPU_SET_INFO_F(24);	break;
		case CPUINFO_INT_REGISTER + I860_F25:		CPU_SET_INFO_F(25);	break;
		case CPUINFO_INT_REGISTER + I860_F26:		CPU_SET_INFO_F(26);	break;
		case CPUINFO_INT_REGISTER + I860_F27:		CPU_SET_INFO_F(27);	break;
		case CPUINFO_INT_REGISTER + I860_F28:		CPU_SET_INFO_F(28);	break;
		case CPUINFO_INT_REGISTER + I860_F29:		CPU_SET_INFO_F(29);	break;
		case CPUINFO_INT_REGISTER + I860_F30:		CPU_SET_INFO_F(30);	break;
		case CPUINFO_INT_REGISTER + I860_F31:		CPU_SET_INFO_F(31);	break;
	}
}

#define CPU_GET_INFO_INT_F(fnum) (info->i = cpustate->frg[0+(4*fnum)]       | \
											cpustate->frg[1+(4*fnum)] << 8  | \
											cpustate->frg[2+(4*fnum)] << 16 | \
											cpustate->frg[3+(4*fnum)] << 24)

#define CPU_GET_INFO_STR_F(fnum) (sprintf(info->s, "F%d : %08x", fnum, cpustate->frg[0+(4*fnum)]       | \
																	   cpustate->frg[1+(4*fnum)] << 8  | \
																	   cpustate->frg[2+(4*fnum)] << 16 | \
																	   cpustate->frg[3+(4*fnum)] << 24))

CPU_GET_INFO( i860 )
{
	i860_state_t *cpustate = (device != NULL && device->token() != NULL) ? get_safe_token(device) : NULL;

	switch (state)
	{
		/* --- the following bits of info are returned as 64-bit signed integers --- */
		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(i860_state_t);		break;
		case CPUINFO_INT_INPUT_LINES:					info->i = 0;						break;
		case CPUINFO_INT_DEFAULT_IRQ_VECTOR:			info->i = 0x00000000;				break;
		case DEVINFO_INT_ENDIANNESS:					info->i = ENDIANNESS_LITTLE;		break;
		case CPUINFO_INT_CLOCK_MULTIPLIER:				info->i = 1;						break;
		case CPUINFO_INT_CLOCK_DIVIDER:					info->i = 1;						break;
		case CPUINFO_INT_MIN_INSTRUCTION_BYTES:			info->i = 4;						break;
		case CPUINFO_INT_MAX_INSTRUCTION_BYTES:			info->i = 4;						break;
		case CPUINFO_INT_MIN_CYCLES:					info->i = 1;						break;
		case CPUINFO_INT_MAX_CYCLES:					info->i = 8;						break;

		case DEVINFO_INT_DATABUS_WIDTH + AS_PROGRAM:			info->i = 64;	break;
		case DEVINFO_INT_ADDRBUS_WIDTH + AS_PROGRAM: 		info->i = 32;	break;
		case DEVINFO_INT_ADDRBUS_SHIFT + AS_PROGRAM: 		info->i = 0;	break;
		case DEVINFO_INT_DATABUS_WIDTH + AS_DATA:			info->i = 0;	break;
		case DEVINFO_INT_ADDRBUS_WIDTH + AS_DATA:			info->i = 0;	break;
		case DEVINFO_INT_ADDRBUS_SHIFT + AS_DATA:			info->i = 0;	break;
		case DEVINFO_INT_DATABUS_WIDTH + AS_IO:				info->i = 0;	break;
		case DEVINFO_INT_ADDRBUS_WIDTH + AS_IO:				info->i = 0;	break;
		case DEVINFO_INT_ADDRBUS_SHIFT + AS_IO:				info->i = 0;	break;

		case CPUINFO_INT_PC:
		case CPUINFO_INT_REGISTER + I860_PC:			info->i = cpustate->pc;					break;
		case CPUINFO_INT_PREVIOUSPC:					info->i = cpustate->ppc;				break;

		case CPUINFO_INT_REGISTER + I860_FIR:			info->i = cpustate->cregs[CR_FIR];		break;
		case CPUINFO_INT_REGISTER + I860_PSR:			info->i = cpustate->cregs[CR_PSR];		break;
		case CPUINFO_INT_REGISTER + I860_DIRBASE:		info->i = cpustate->cregs[CR_DIRBASE];	break;
		case CPUINFO_INT_REGISTER + I860_DB:			info->i = cpustate->cregs[CR_DB];		break;
		case CPUINFO_INT_REGISTER + I860_FSR:			info->i = cpustate->cregs[CR_FSR];		break;
		case CPUINFO_INT_REGISTER + I860_EPSR:			info->i = cpustate->cregs[CR_EPSR];		break;

		case CPUINFO_INT_REGISTER + I860_R0:			info->i = cpustate->iregs[0];			break;
		case CPUINFO_INT_REGISTER + I860_R1:			info->i = cpustate->iregs[1];			break;
		case CPUINFO_INT_REGISTER + I860_R2:			info->i = cpustate->iregs[2];			break;
		case CPUINFO_INT_REGISTER + I860_R3:			info->i = cpustate->iregs[3];			break;
		case CPUINFO_INT_REGISTER + I860_R4:			info->i = cpustate->iregs[4];			break;
		case CPUINFO_INT_REGISTER + I860_R5:			info->i = cpustate->iregs[5];			break;
		case CPUINFO_INT_REGISTER + I860_R6:			info->i = cpustate->iregs[6];			break;
		case CPUINFO_INT_REGISTER + I860_R7:			info->i = cpustate->iregs[7];			break;
		case CPUINFO_INT_REGISTER + I860_R8:			info->i = cpustate->iregs[8];			break;
		case CPUINFO_INT_REGISTER + I860_R9:			info->i = cpustate->iregs[9];			break;
		case CPUINFO_INT_REGISTER + I860_R10:			info->i = cpustate->iregs[10];			break;
		case CPUINFO_INT_REGISTER + I860_R11:			info->i = cpustate->iregs[11];			break;
		case CPUINFO_INT_REGISTER + I860_R12:			info->i = cpustate->iregs[12];			break;
		case CPUINFO_INT_REGISTER + I860_R13:			info->i = cpustate->iregs[13];			break;
		case CPUINFO_INT_REGISTER + I860_R14:			info->i = cpustate->iregs[14];			break;
		case CPUINFO_INT_REGISTER + I860_R15:			info->i = cpustate->iregs[15];			break;
		case CPUINFO_INT_REGISTER + I860_R16:			info->i = cpustate->iregs[16];			break;
		case CPUINFO_INT_REGISTER + I860_R17:			info->i = cpustate->iregs[17];			break;
		case CPUINFO_INT_REGISTER + I860_R18:			info->i = cpustate->iregs[18];			break;
		case CPUINFO_INT_REGISTER + I860_R19:			info->i = cpustate->iregs[19];			break;
		case CPUINFO_INT_REGISTER + I860_R20:			info->i = cpustate->iregs[20];			break;
		case CPUINFO_INT_REGISTER + I860_R21:			info->i = cpustate->iregs[21];			break;
		case CPUINFO_INT_REGISTER + I860_R22:			info->i = cpustate->iregs[22];			break;
		case CPUINFO_INT_REGISTER + I860_R23:			info->i = cpustate->iregs[23];			break;
		case CPUINFO_INT_REGISTER + I860_R24:			info->i = cpustate->iregs[24];			break;
		case CPUINFO_INT_REGISTER + I860_R25:			info->i = cpustate->iregs[25];			break;
		case CPUINFO_INT_REGISTER + I860_R26:			info->i = cpustate->iregs[26];			break;
		case CPUINFO_INT_REGISTER + I860_R27:			info->i = cpustate->iregs[27];			break;
		case CPUINFO_INT_REGISTER + I860_R28:			info->i = cpustate->iregs[28];			break;
		case CPUINFO_INT_REGISTER + I860_R29:			info->i = cpustate->iregs[29];			break;
		case CPUINFO_INT_REGISTER + I860_R30:			info->i = cpustate->iregs[30];			break;
		case CPUINFO_INT_REGISTER + I860_R31:			info->i = cpustate->iregs[31];			break;

		case CPUINFO_INT_REGISTER + I860_F0:			CPU_GET_INFO_INT_F(0);	break;
		case CPUINFO_INT_REGISTER + I860_F1:			CPU_GET_INFO_INT_F(1);	break;
		case CPUINFO_INT_REGISTER + I860_F2:			CPU_GET_INFO_INT_F(2);	break;
		case CPUINFO_INT_REGISTER + I860_F3:			CPU_GET_INFO_INT_F(3);	break;
		case CPUINFO_INT_REGISTER + I860_F4:			CPU_GET_INFO_INT_F(4);	break;
		case CPUINFO_INT_REGISTER + I860_F5:			CPU_GET_INFO_INT_F(5);	break;
		case CPUINFO_INT_REGISTER + I860_F6:			CPU_GET_INFO_INT_F(6);	break;
		case CPUINFO_INT_REGISTER + I860_F7:			CPU_GET_INFO_INT_F(7);	break;
		case CPUINFO_INT_REGISTER + I860_F8:			CPU_GET_INFO_INT_F(8);	break;
		case CPUINFO_INT_REGISTER + I860_F9:			CPU_GET_INFO_INT_F(9);	break;
		case CPUINFO_INT_REGISTER + I860_F10:			CPU_GET_INFO_INT_F(10);	break;
		case CPUINFO_INT_REGISTER + I860_F11:			CPU_GET_INFO_INT_F(11);	break;
		case CPUINFO_INT_REGISTER + I860_F12:			CPU_GET_INFO_INT_F(12);	break;
		case CPUINFO_INT_REGISTER + I860_F13:			CPU_GET_INFO_INT_F(13);	break;
		case CPUINFO_INT_REGISTER + I860_F14:			CPU_GET_INFO_INT_F(14);	break;
		case CPUINFO_INT_REGISTER + I860_F15:			CPU_GET_INFO_INT_F(15);	break;
		case CPUINFO_INT_REGISTER + I860_F16:			CPU_GET_INFO_INT_F(16);	break;
		case CPUINFO_INT_REGISTER + I860_F17:			CPU_GET_INFO_INT_F(17);	break;
		case CPUINFO_INT_REGISTER + I860_F18:			CPU_GET_INFO_INT_F(18);	break;
		case CPUINFO_INT_REGISTER + I860_F19:			CPU_GET_INFO_INT_F(19);	break;
		case CPUINFO_INT_REGISTER + I860_F20:			CPU_GET_INFO_INT_F(20);	break;
		case CPUINFO_INT_REGISTER + I860_F21:			CPU_GET_INFO_INT_F(21);	break;
		case CPUINFO_INT_REGISTER + I860_F22:			CPU_GET_INFO_INT_F(22);	break;
		case CPUINFO_INT_REGISTER + I860_F23:			CPU_GET_INFO_INT_F(23);	break;
		case CPUINFO_INT_REGISTER + I860_F24:			CPU_GET_INFO_INT_F(24);	break;
		case CPUINFO_INT_REGISTER + I860_F25:			CPU_GET_INFO_INT_F(25);	break;
		case CPUINFO_INT_REGISTER + I860_F26:			CPU_GET_INFO_INT_F(26);	break;
		case CPUINFO_INT_REGISTER + I860_F27:			CPU_GET_INFO_INT_F(27);	break;
		case CPUINFO_INT_REGISTER + I860_F28:			CPU_GET_INFO_INT_F(28);	break;
		case CPUINFO_INT_REGISTER + I860_F29:			CPU_GET_INFO_INT_F(29);	break;
		case CPUINFO_INT_REGISTER + I860_F30:			CPU_GET_INFO_INT_F(30);	break;
		case CPUINFO_INT_REGISTER + I860_F31:			CPU_GET_INFO_INT_F(31);	break;


		/* --- the following bits of info are returned as pointers to data or functions --- */
		case CPUINFO_FCT_SET_INFO:						info->setinfo	  = CPU_SET_INFO_NAME(i860);	break;
		case CPUINFO_FCT_INIT:							info->init		  = CPU_INIT_NAME(i860);		break;
		case CPUINFO_FCT_RESET:							info->reset 	  = CPU_RESET_NAME(i860);		break;
		case CPUINFO_FCT_EXIT:							info->exit		  = NULL;						break;
		case CPUINFO_FCT_EXECUTE:						info->execute	  = CPU_EXECUTE_NAME(i860);		break;
		case CPUINFO_FCT_BURN:							info->burn		  = NULL;						break;
		case CPUINFO_FCT_DISASSEMBLE:					info->disassemble = CPU_DISASSEMBLE_NAME(i860);	break;
		case CPUINFO_FCT_DEBUG_INIT:					info->debug_init  = NULL;						break;
		case CPUINFO_FCT_TRANSLATE:						info->translate	  = NULL;						break;
		case CPUINFO_FCT_READ:							info->read		  = NULL;						break;
		case CPUINFO_FCT_WRITE:							info->write 	  = NULL;						break;
		case CPUINFO_FCT_READOP:						info->readop	  = NULL;						break;
		case CPUINFO_PTR_INSTRUCTION_COUNTER:			info->icount	  = &cpustate->icount;			break;

		/* --- the following bits of info are returned as NULL-terminated strings --- */
		case DEVINFO_STR_NAME:							strcpy(info->s, "i860XR");			break;
		case DEVINFO_STR_FAMILY:					strcpy(info->s, "Intel i860");		break;
		case DEVINFO_STR_VERSION:					strcpy(info->s, "0.1");				break;
		case DEVINFO_STR_SOURCE_FILE:						strcpy(info->s, __FILE__);			break;
		case DEVINFO_STR_CREDITS:					strcpy(info->s, "Jason Eckhardt");	break;

		case CPUINFO_STR_FLAGS:
			strcpy(info->s, ""); break;

		case CPUINFO_STR_REGISTER + I860_PC:			sprintf(info->s, "PC : %08x", cpustate->pc);					break;
		case CPUINFO_STR_REGISTER + I860_FIR:			sprintf(info->s, "FIR : %08x", cpustate->cregs[CR_FIR]);		break;
		case CPUINFO_STR_REGISTER + I860_PSR:			sprintf(info->s, "PSR : %08x", cpustate->cregs[CR_PSR]);		break;
		case CPUINFO_STR_REGISTER + I860_DIRBASE:		sprintf(info->s, "DIRBASE : %08x", cpustate->cregs[CR_DIRBASE]);break;
		case CPUINFO_STR_REGISTER + I860_DB:			sprintf(info->s, "DB : %08x", cpustate->cregs[CR_DB]);			break;
		case CPUINFO_STR_REGISTER + I860_FSR:			sprintf(info->s, "FSR : %08x", cpustate->cregs[CR_FSR]);		break;
		case CPUINFO_STR_REGISTER + I860_EPSR:			sprintf(info->s, "EPSR : %08x", cpustate->cregs[CR_EPSR]);		break;

		case CPUINFO_STR_REGISTER + I860_R0:			sprintf(info->s, "R0 : %08x",  cpustate->iregs[0]);		break;
		case CPUINFO_STR_REGISTER + I860_R1:			sprintf(info->s, "R1 : %08x",  cpustate->iregs[1]);		break;
		case CPUINFO_STR_REGISTER + I860_R2:			sprintf(info->s, "R2 : %08x",  cpustate->iregs[2]);		break;
		case CPUINFO_STR_REGISTER + I860_R3:			sprintf(info->s, "R3 : %08x",  cpustate->iregs[3]);		break;
		case CPUINFO_STR_REGISTER + I860_R4:			sprintf(info->s, "R4 : %08x",  cpustate->iregs[4]);		break;
		case CPUINFO_STR_REGISTER + I860_R5:			sprintf(info->s, "R5 : %08x",  cpustate->iregs[5]);		break;
		case CPUINFO_STR_REGISTER + I860_R6:			sprintf(info->s, "R6 : %08x",  cpustate->iregs[6]);		break;
		case CPUINFO_STR_REGISTER + I860_R7:			sprintf(info->s, "R7 : %08x",  cpustate->iregs[7]);		break;
		case CPUINFO_STR_REGISTER + I860_R8:			sprintf(info->s, "R8 : %08x",  cpustate->iregs[8]);		break;
		case CPUINFO_STR_REGISTER + I860_R9:			sprintf(info->s, "R9 : %08x",  cpustate->iregs[9]);		break;
		case CPUINFO_STR_REGISTER + I860_R10:			sprintf(info->s, "R10 : %08x", cpustate->iregs[10]);	break;
		case CPUINFO_STR_REGISTER + I860_R11:			sprintf(info->s, "R11 : %08x", cpustate->iregs[11]);	break;
		case CPUINFO_STR_REGISTER + I860_R12:			sprintf(info->s, "R12 : %08x", cpustate->iregs[12]);	break;
		case CPUINFO_STR_REGISTER + I860_R13:			sprintf(info->s, "R13 : %08x", cpustate->iregs[13]);	break;
		case CPUINFO_STR_REGISTER + I860_R14:			sprintf(info->s, "R14 : %08x", cpustate->iregs[14]);	break;
		case CPUINFO_STR_REGISTER + I860_R15:			sprintf(info->s, "R15 : %08x", cpustate->iregs[15]);	break;
		case CPUINFO_STR_REGISTER + I860_R16:			sprintf(info->s, "R16 : %08x", cpustate->iregs[16]);	break;
		case CPUINFO_STR_REGISTER + I860_R17:			sprintf(info->s, "R17 : %08x", cpustate->iregs[17]);	break;
		case CPUINFO_STR_REGISTER + I860_R18:			sprintf(info->s, "R18 : %08x", cpustate->iregs[18]);	break;
		case CPUINFO_STR_REGISTER + I860_R19:			sprintf(info->s, "R19 : %08x", cpustate->iregs[19]);	break;
		case CPUINFO_STR_REGISTER + I860_R20:			sprintf(info->s, "R20 : %08x", cpustate->iregs[20]);	break;
		case CPUINFO_STR_REGISTER + I860_R21:			sprintf(info->s, "R21 : %08x", cpustate->iregs[21]);	break;
		case CPUINFO_STR_REGISTER + I860_R22:			sprintf(info->s, "R22 : %08x", cpustate->iregs[22]);	break;
		case CPUINFO_STR_REGISTER + I860_R23:			sprintf(info->s, "R23 : %08x", cpustate->iregs[23]);	break;
		case CPUINFO_STR_REGISTER + I860_R24:			sprintf(info->s, "R24 : %08x", cpustate->iregs[24]);	break;
		case CPUINFO_STR_REGISTER + I860_R25:			sprintf(info->s, "R25 : %08x", cpustate->iregs[25]);	break;
		case CPUINFO_STR_REGISTER + I860_R26:			sprintf(info->s, "R26 : %08x", cpustate->iregs[26]);	break;
		case CPUINFO_STR_REGISTER + I860_R27:			sprintf(info->s, "R27 : %08x", cpustate->iregs[27]);	break;
		case CPUINFO_STR_REGISTER + I860_R28:			sprintf(info->s, "R28 : %08x", cpustate->iregs[28]);	break;
		case CPUINFO_STR_REGISTER + I860_R29:			sprintf(info->s, "R29 : %08x", cpustate->iregs[29]);	break;
		case CPUINFO_STR_REGISTER + I860_R30:			sprintf(info->s, "R30 : %08x", cpustate->iregs[30]);	break;
		case CPUINFO_STR_REGISTER + I860_R31:			sprintf(info->s, "R31 : %08x", cpustate->iregs[31]);	break;

		case CPUINFO_STR_REGISTER + I860_F0:			CPU_GET_INFO_STR_F(0);	break;
		case CPUINFO_STR_REGISTER + I860_F1:			CPU_GET_INFO_STR_F(1);	break;
		case CPUINFO_STR_REGISTER + I860_F2:			CPU_GET_INFO_STR_F(2);	break;
		case CPUINFO_STR_REGISTER + I860_F3:			CPU_GET_INFO_STR_F(3);	break;
		case CPUINFO_STR_REGISTER + I860_F4:			CPU_GET_INFO_STR_F(4);	break;
		case CPUINFO_STR_REGISTER + I860_F5:			CPU_GET_INFO_STR_F(5);	break;
		case CPUINFO_STR_REGISTER + I860_F6:			CPU_GET_INFO_STR_F(6);	break;
		case CPUINFO_STR_REGISTER + I860_F7:			CPU_GET_INFO_STR_F(7);	break;
		case CPUINFO_STR_REGISTER + I860_F8:			CPU_GET_INFO_STR_F(8);	break;
		case CPUINFO_STR_REGISTER + I860_F9:			CPU_GET_INFO_STR_F(9);	break;
		case CPUINFO_STR_REGISTER + I860_F10:			CPU_GET_INFO_STR_F(10);	break;
		case CPUINFO_STR_REGISTER + I860_F11:			CPU_GET_INFO_STR_F(11);	break;
		case CPUINFO_STR_REGISTER + I860_F12:			CPU_GET_INFO_STR_F(12);	break;
		case CPUINFO_STR_REGISTER + I860_F13:			CPU_GET_INFO_STR_F(13);	break;
		case CPUINFO_STR_REGISTER + I860_F14:			CPU_GET_INFO_STR_F(14);	break;
		case CPUINFO_STR_REGISTER + I860_F15:			CPU_GET_INFO_STR_F(15);	break;
		case CPUINFO_STR_REGISTER + I860_F16:			CPU_GET_INFO_STR_F(16);	break;
		case CPUINFO_STR_REGISTER + I860_F17:			CPU_GET_INFO_STR_F(17);	break;
		case CPUINFO_STR_REGISTER + I860_F18:			CPU_GET_INFO_STR_F(18);	break;
		case CPUINFO_STR_REGISTER + I860_F19:			CPU_GET_INFO_STR_F(19);	break;
		case CPUINFO_STR_REGISTER + I860_F20:			CPU_GET_INFO_STR_F(20);	break;
		case CPUINFO_STR_REGISTER + I860_F21:			CPU_GET_INFO_STR_F(21);	break;
		case CPUINFO_STR_REGISTER + I860_F22:			CPU_GET_INFO_STR_F(22);	break;
		case CPUINFO_STR_REGISTER + I860_F23:			CPU_GET_INFO_STR_F(23);	break;
		case CPUINFO_STR_REGISTER + I860_F24:			CPU_GET_INFO_STR_F(24);	break;
		case CPUINFO_STR_REGISTER + I860_F25:			CPU_GET_INFO_STR_F(25);	break;
		case CPUINFO_STR_REGISTER + I860_F26:			CPU_GET_INFO_STR_F(26);	break;
		case CPUINFO_STR_REGISTER + I860_F27:			CPU_GET_INFO_STR_F(27);	break;
		case CPUINFO_STR_REGISTER + I860_F28:			CPU_GET_INFO_STR_F(28);	break;
		case CPUINFO_STR_REGISTER + I860_F29:			CPU_GET_INFO_STR_F(29);	break;
		case CPUINFO_STR_REGISTER + I860_F30:			CPU_GET_INFO_STR_F(30);	break;
		case CPUINFO_STR_REGISTER + I860_F31:			CPU_GET_INFO_STR_F(31);	break;
	}
}

DEFINE_LEGACY_CPU_DEVICE(I860, i860);