1 /***************************************************************************
2
3 Atari G42 hardware
4
5 driver by Aaron Giles
6
7 Games supported:
8 * Road Riot 4WD (1991)
9 * Guardians of the 'Hood (1992)
10
11 Known bugs:
12 * ASIC65 for Road Riot not quite perfect
13
14 ****************************************************************************
15
16 Memory map (TBA)
17
18 ***************************************************************************/
19
20
21 #include "driver.h"
22 #include "machine/atarigen.h"
23 #include "machine/asic65.h"
24 #include "sndhrdw/atarijsa.h"
25 #include "vidhrdw/atarirle.h"
26 #include "atarig42.h"
27
28
29 /*************************************
30 *
31 * Statics
32 *
33 *************************************/
34
35 static UINT8 analog_data;
36 static data16_t *mo_command;
37
38 static int sloop_bank;
39 static int sloop_next_bank;
40 static int sloop_offset;
41 static int sloop_state;
42 static data16_t *sloop_base;
43
44
45
46 /*************************************
47 *
48 * Initialization & interrupts
49 *
50 *************************************/
51
update_interrupts(void)52 static void update_interrupts(void)
53 {
54 int newstate = 0;
55
56 if (atarigen_video_int_state)
57 newstate = 4;
58 if (atarigen_sound_int_state)
59 newstate = 5;
60
61 if (newstate)
62 cpu_set_irq_line(0, newstate, ASSERT_LINE);
63 else
64 cpu_set_irq_line(0, 7, CLEAR_LINE);
65 }
66
67
MACHINE_INIT(atarig42)68 static MACHINE_INIT( atarig42 )
69 {
70 atarigen_eeprom_reset();
71 atarigen_interrupt_reset(update_interrupts);
72 atarigen_scanline_timer_reset(atarig42_scanline_update, 8);
73 atarijsa_reset();
74 }
75
76
77
78 /*************************************
79 *
80 * I/O read dispatch.
81 *
82 *************************************/
83
READ16_HANDLER(special_port2_r)84 static READ16_HANDLER( special_port2_r )
85 {
86 int temp = readinputport(2);
87 if (atarigen_cpu_to_sound_ready) temp ^= 0x0020;
88 if (atarigen_sound_to_cpu_ready) temp ^= 0x0010;
89 temp ^= 0x0008; /* A2D.EOC always high for now */
90 return temp;
91 }
92
93
WRITE16_HANDLER(a2d_select_w)94 static WRITE16_HANDLER( a2d_select_w )
95 {
96 analog_data = readinputport(4 + (offset != 0));
97 }
98
99
READ16_HANDLER(a2d_data_r)100 static READ16_HANDLER( a2d_data_r )
101 {
102 return analog_data << 8;
103 }
104
105
WRITE16_HANDLER(io_latch_w)106 static WRITE16_HANDLER( io_latch_w )
107 {
108 /* upper byte */
109 if (ACCESSING_MSB)
110 {
111 /* bit 14 controls the ASIC65 reset line */
112 asic65_reset((~data >> 14) & 1);
113
114 /* bits 13-11 are the MO control bits */
115 atarirle_control_w(0, (data >> 11) & 7);
116 }
117
118 /* lower byte */
119 if (ACCESSING_LSB)
120 {
121 /* bit 4 resets the sound CPU */
122 cpu_set_reset_line(1, (data & 0x10) ? CLEAR_LINE : ASSERT_LINE);
123 if (!(data & 0x10)) atarijsa_reset();
124
125 /* bit 5 is /XRESET, probably related to the ASIC */
126
127 /* bits 3 and 0 are coin counters */
128 }
129 }
130
131
WRITE16_HANDLER(mo_command_w)132 static WRITE16_HANDLER( mo_command_w )
133 {
134 COMBINE_DATA(mo_command);
135 atarirle_command_w(0, (data == 0) ? ATARIRLE_COMMAND_CHECKSUM : ATARIRLE_COMMAND_DRAW);
136 }
137
138
139
140 /*************************************
141 *
142 * SLOOP banking -- Road Riot
143 *
144 *************************************/
145
roadriot_sloop_tweak(int offset)146 static void roadriot_sloop_tweak(int offset)
147 {
148 /*
149 sequence 1:
150
151 touch $68000
152 touch $68eee and $124/$678/$abc/$1024(bank) in the same instruction
153 touch $69158/$6a690/$6e708/$71166
154
155 sequence 2:
156
157 touch $5edb4 to add 2 to the bank
158 touch $5db0a to add 1 to the bank
159 touch $5f042
160 touch $69158/$6a690/$6e708/$71166
161 touch $68000
162 touch $5d532/$5d534
163 */
164
165 switch (offset)
166 {
167 /* standard 68000 -> 68eee -> (bank) addressing */
168 case 0x68000/2:
169 sloop_state = 1;
170 break;
171 case 0x68eee/2:
172 if (sloop_state == 1)
173 sloop_state = 2;
174 break;
175 case 0x00124/2:
176 if (sloop_state == 2)
177 {
178 sloop_next_bank = 0;
179 sloop_state = 3;
180 }
181 break;
182 case 0x00678/2:
183 if (sloop_state == 2)
184 {
185 sloop_next_bank = 1;
186 sloop_state = 3;
187 }
188 break;
189 case 0x00abc/2:
190 if (sloop_state == 2)
191 {
192 sloop_next_bank = 2;
193 sloop_state = 3;
194 }
195 break;
196 case 0x01024/2:
197 if (sloop_state == 2)
198 {
199 sloop_next_bank = 3;
200 sloop_state = 3;
201 }
202 break;
203
204 /* lock in the change? */
205 case 0x69158/2:
206 /* written if $ff8007 == 0 */
207 case 0x6a690/2:
208 /* written if $ff8007 == 1 */
209 case 0x6e708/2:
210 /* written if $ff8007 == 2 */
211 case 0x71166/2:
212 /* written if $ff8007 == 3 */
213 if (sloop_state == 3)
214 sloop_bank = sloop_next_bank;
215 sloop_state = 0;
216 break;
217
218 /* bank offsets */
219 case 0x5edb4/2:
220 if (sloop_state == 0)
221 {
222 sloop_state = 10;
223 sloop_offset = 0;
224 }
225 sloop_offset += 2;
226 break;
227 case 0x5db0a/2:
228 if (sloop_state == 0)
229 {
230 sloop_state = 10;
231 sloop_offset = 0;
232 }
233 sloop_offset += 1;
234 break;
235
236 /* apply the offset */
237 case 0x5f042/2:
238 if (sloop_state == 10)
239 {
240 sloop_bank = (sloop_bank + sloop_offset) & 3;
241 sloop_offset = 0;
242 sloop_state = 0;
243 }
244 break;
245
246 /* unknown */
247 case 0x5d532/2:
248 break;
249 case 0x5d534/2:
250 break;
251
252 default:
253 break;
254 }
255 }
256
257
READ16_HANDLER(roadriot_sloop_data_r)258 static READ16_HANDLER( roadriot_sloop_data_r )
259 {
260 roadriot_sloop_tweak(offset);
261 if (offset < 0x78000/2)
262 return sloop_base[offset];
263 else
264 return sloop_base[0x78000/2 + sloop_bank * 0x1000 + (offset & 0xfff)];
265 }
266
267
WRITE16_HANDLER(roadriot_sloop_data_w)268 static WRITE16_HANDLER( roadriot_sloop_data_w )
269 {
270 roadriot_sloop_tweak(offset);
271 }
272
273
274
275 /*************************************
276 *
277 * SLOOP banking -- Guardians
278 *
279 *************************************/
280
guardians_sloop_tweak(int offset)281 static void guardians_sloop_tweak(int offset)
282 {
283 static UINT32 last_accesses[8];
284
285 if (offset >= 0x7f7c0/2)
286 {
287 last_accesses[0] = last_accesses[1];
288 last_accesses[1] = last_accesses[2];
289 last_accesses[2] = last_accesses[3];
290 last_accesses[3] = last_accesses[4];
291 last_accesses[4] = last_accesses[5];
292 last_accesses[5] = last_accesses[6];
293 last_accesses[6] = last_accesses[7];
294 last_accesses[7] = offset;
295
296 if (last_accesses[0] == 0x7f7c0/2 && last_accesses[1] == 0x7f7ce/2 && last_accesses[2] == 0x7f7c2/2 && last_accesses[3] == 0x7f7cc/2 &&
297 last_accesses[4] == 0x7f7c4/2 && last_accesses[5] == 0x7f7ca/2 && last_accesses[6] == 0x7f7c6/2 && last_accesses[7] == 0x7f7c8/2)
298 sloop_bank = 0;
299
300 if (last_accesses[0] == 0x7f7d0/2 && last_accesses[1] == 0x7f7de/2 && last_accesses[2] == 0x7f7d2/2 && last_accesses[3] == 0x7f7dc/2 &&
301 last_accesses[4] == 0x7f7d4/2 && last_accesses[5] == 0x7f7da/2 && last_accesses[6] == 0x7f7d6/2 && last_accesses[7] == 0x7f7d8/2)
302 sloop_bank = 1;
303
304 if (last_accesses[0] == 0x7f7e0/2 && last_accesses[1] == 0x7f7ee/2 && last_accesses[2] == 0x7f7e2/2 && last_accesses[3] == 0x7f7ec/2 &&
305 last_accesses[4] == 0x7f7e4/2 && last_accesses[5] == 0x7f7ea/2 && last_accesses[6] == 0x7f7e6/2 && last_accesses[7] == 0x7f7e8/2)
306 sloop_bank = 2;
307
308 if (last_accesses[0] == 0x7f7f0/2 && last_accesses[1] == 0x7f7fe/2 && last_accesses[2] == 0x7f7f2/2 && last_accesses[3] == 0x7f7fc/2 &&
309 last_accesses[4] == 0x7f7f4/2 && last_accesses[5] == 0x7f7fa/2 && last_accesses[6] == 0x7f7f6/2 && last_accesses[7] == 0x7f7f8/2)
310 sloop_bank = 3;
311 }
312 }
313
314
READ16_HANDLER(guardians_sloop_data_r)315 static READ16_HANDLER( guardians_sloop_data_r )
316 {
317 guardians_sloop_tweak(offset);
318 if (offset < 0x78000/2)
319 return sloop_base[offset];
320 else
321 return sloop_base[0x78000/2 + sloop_bank * 0x1000 + (offset & 0xfff)];
322 }
323
324
WRITE16_HANDLER(guardians_sloop_data_w)325 static WRITE16_HANDLER( guardians_sloop_data_w )
326 {
327 guardians_sloop_tweak(offset);
328 }
329
330
331
332 /*************************************
333 *
334 * Main CPU memory handlers
335 *
336 *************************************/
337
MEMORY_READ16_START(main_readmem)338 static MEMORY_READ16_START( main_readmem )
339 { 0x000000, 0x080001, MRA16_ROM },
340 { 0xe00000, 0xe00001, input_port_0_word_r },
341 { 0xe00002, 0xe00003, input_port_1_word_r },
342 { 0xe00010, 0xe00011, special_port2_r },
343 { 0xe00012, 0xe00013, input_port_3_word_r },
344 { 0xe00020, 0xe00027, a2d_data_r },
345 { 0xe00030, 0xe00031, atarigen_sound_r },
346 { 0xe80000, 0xe80fff, MRA16_RAM },
347 { 0xf40000, 0xf40001, asic65_io_r },
348 { 0xf60000, 0xf60001, asic65_r },
349 { 0xfa0000, 0xfa0fff, atarigen_eeprom_r },
350 { 0xfc0000, 0xfc0fff, MRA16_RAM },
351 { 0xff0000, 0xffffff, MRA16_RAM },
352 MEMORY_END
353
354
355 static MEMORY_WRITE16_START( main_writemem )
356 { 0x000000, 0x080001, MWA16_ROM },
357 { 0xe00020, 0xe00027, a2d_select_w },
358 { 0xe00040, 0xe00041, atarigen_sound_w },
359 { 0xe00050, 0xe00051, io_latch_w },
360 { 0xe00060, 0xe00061, atarigen_eeprom_enable_w },
361 { 0xe03000, 0xe03001, atarigen_video_int_ack_w },
362 { 0xe03800, 0xe03801, watchdog_reset16_w },
363 { 0xe80000, 0xe80fff, MWA16_RAM },
364 { 0xf80000, 0xf80003, asic65_data_w },
365 { 0xfa0000, 0xfa0fff, atarigen_eeprom_w, &atarigen_eeprom, &atarigen_eeprom_size },
366 { 0xfc0000, 0xfc0fff, atarigen_666_paletteram_w, &paletteram16 },
367 { 0xff0000, 0xff0fff, atarirle_0_spriteram_w, &atarirle_0_spriteram },
368 { 0xff1000, 0xff1fff, MWA16_RAM },
369 { 0xff2000, 0xff5fff, atarigen_playfield_w, &atarigen_playfield },
370 { 0xff6000, 0xff6fff, atarigen_alpha_w, &atarigen_alpha },
371 { 0xff7000, 0xff7001, mo_command_w, &mo_command },
372 { 0xff7002, 0xffffff, MWA16_RAM },
373 MEMORY_END
374
375
376
377 /*************************************
378 *
379 * Port definitions
380 *
381 *************************************/
382
383 INPUT_PORTS_START( roadriot )
384 PORT_START /* e00000 */
385 PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNUSED )
386 PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_START1 )
387 PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON3 | IPF_PLAYER1 )
388 PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
389 PORT_BIT( 0xf800, IP_ACTIVE_LOW, IPT_UNUSED )
390
391 PORT_START /* e00002 */
392 PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNUSED )
393
394 PORT_START /* e00010 */
395 PORT_BIT( 0x003f, IP_ACTIVE_LOW, IPT_UNUSED )
396 PORT_SERVICE( 0x0040, IP_ACTIVE_LOW )
397 PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_VBLANK )
398 PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
399
400 JSA_III_PORT /* audio board port */
401
402 PORT_START /* analog 0 */
403 PORT_ANALOG( 0xff, 0x80, IPT_AD_STICK_X, 50, 10, 0, 255 )
404
405 PORT_START /* analog 1 */
406 PORT_ANALOG( 0xff, 0x00, IPT_PEDAL, 100, 16, 0x00, 0xff )
407 INPUT_PORTS_END
408
409
410 INPUT_PORTS_START( guardian )
411 PORT_START /* e00000 */
412 PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_UNUSED )
413 PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_BUTTON5 | IPF_PLAYER3 )
414 PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER3 )
415 PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_BUTTON4 | IPF_PLAYER3 )
416 PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER3 )
417 PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_PLAYER3 )
418 PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_PLAYER3 )
419 PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_PLAYER3 )
420 PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_UNUSED )
421 PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON5 | IPF_PLAYER1 )
422 PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER1 )
423 PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_BUTTON4 | IPF_PLAYER1 )
424 PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER1 )
425 PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_PLAYER1 )
426 PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_PLAYER1 )
427 PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_PLAYER1 )
428
429 PORT_START /* e00002 */
430 PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_BUTTON3 | IPF_PLAYER1 )
431 PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
432 PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_BUTTON3 | IPF_PLAYER2 )
433 PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER2 )
434 PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON3 | IPF_PLAYER3 )
435 PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER3 )
436 PORT_BIT( 0x01c0, IP_ACTIVE_LOW, IPT_UNUSED )
437 PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON5 | IPF_PLAYER2 )
438 PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 )
439 PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_BUTTON4 | IPF_PLAYER2 )
440 PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER2 )
441 PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_PLAYER2 )
442 PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_PLAYER2 )
443 PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_PLAYER2 )
444
445 PORT_START /* e00010 */
446 PORT_BIT( 0x003f, IP_ACTIVE_LOW, IPT_UNUSED )
447 PORT_SERVICE( 0x0040, IP_ACTIVE_LOW )
448 PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_VBLANK )
449 PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
450
451 JSA_III_PORT /* audio board port */
452
453 PORT_START /* analog 0 */
454 PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
455
456 PORT_START /* analog 1 */
457 PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
458 INPUT_PORTS_END
459
460
461
462 /*************************************
463 *
464 * Graphics definitions
465 *
466 *************************************/
467
468 static struct GfxLayout pflayout =
469 {
470 8,8,
471 RGN_FRAC(1,3),
472 5,
473 { 0, 0, 1, 2, 3 },
474 { RGN_FRAC(1,3)+0, RGN_FRAC(1,3)+4, 0, 4, RGN_FRAC(1,3)+8, RGN_FRAC(1,3)+12, 8, 12 },
475 { 0*8, 2*8, 4*8, 6*8, 8*8, 10*8, 12*8, 14*8 },
476 16*8
477 };
478
479 static struct GfxLayout pftoplayout =
480 {
481 8,8,
482 RGN_FRAC(1,3),
483 6,
484 { RGN_FRAC(2,3)+0, RGN_FRAC(2,3)+4, 0, 0, 0, 0 },
485 { 3, 2, 1, 0, 11, 10, 9, 8 },
486 { 0*8, 2*8, 4*8, 6*8, 8*8, 10*8, 12*8, 14*8 },
487 16*8
488 };
489
490 static struct GfxLayout anlayout =
491 {
492 8,8,
493 RGN_FRAC(1,1),
494 4,
495 { 0, 1, 2, 3 },
496 { 0, 4, 8, 12, 16, 20, 24, 28 },
497 { 0*8, 4*8, 8*8, 12*8, 16*8, 20*8, 24*8, 28*8 },
498 32*8
499 };
500
501 static struct GfxDecodeInfo gfxdecodeinfo[] =
502 {
503 { REGION_GFX1, 0, &pflayout, 0x000, 64 },
504 { REGION_GFX2, 0, &anlayout, 0x000, 16 },
505 { REGION_GFX1, 0, &pftoplayout, 0x000, 64 },
506 { -1 } /* end of array */
507 };
508
509
510
511 /*************************************
512 *
513 * Machine driver
514 *
515 *************************************/
516
517 static MACHINE_DRIVER_START( atarig42 )
518
519 /* basic machine hardware */
MDRV_CPU_ADD(M68000,ATARI_CLOCK_14MHz)520 MDRV_CPU_ADD(M68000, ATARI_CLOCK_14MHz)
521 MDRV_CPU_MEMORY(main_readmem,main_writemem)
522 MDRV_CPU_VBLANK_INT(atarigen_video_int_gen,1)
523
524 MDRV_FRAMES_PER_SECOND(60)
525 MDRV_VBLANK_DURATION(DEFAULT_REAL_60HZ_VBLANK_DURATION)
526
527 MDRV_MACHINE_INIT(atarig42)
528 MDRV_NVRAM_HANDLER(atarigen)
529
530 /* video hardware */
531 MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER | VIDEO_NEEDS_6BITS_PER_GUN | VIDEO_UPDATE_BEFORE_VBLANK)
532 MDRV_SCREEN_SIZE(42*8, 30*8)
533 MDRV_VISIBLE_AREA(0*8, 42*8-1, 0*8, 30*8-1)
534 MDRV_GFXDECODE(gfxdecodeinfo)
535 MDRV_PALETTE_LENGTH(2048)
536
537 MDRV_VIDEO_START(atarig42)
538 MDRV_VIDEO_EOF(atarirle)
539 MDRV_VIDEO_UPDATE(atarig42)
540
541 /* sound hardware */
542 MDRV_IMPORT_FROM(jsa_iii_mono)
543 MACHINE_DRIVER_END
544
545
546
547 /*************************************
548 *
549 * ROM definition(s)
550 *
551 *************************************/
552
553 ROM_START( roadriot )
554 ROM_REGION( 0x80004, REGION_CPU1, 0 ) /* 8*64k for 68000 code */
555 ROM_LOAD16_BYTE( "rriot.8d", 0x00000, 0x20000, CRC(bf8aaafc) SHA1(1594d91b56609d49921c866d8f5796619e79217b) )
556 ROM_LOAD16_BYTE( "rriot.8c", 0x00001, 0x20000, CRC(5dd2dd70) SHA1(8f6a0e809ec1f6feea8a18197a789086a7b9dd6a) )
557 ROM_LOAD16_BYTE( "rriot.9d", 0x40000, 0x20000, CRC(6191653c) SHA1(97d1a84a585149e8f2c49cab7af22dc755dff350) )
558 ROM_LOAD16_BYTE( "rriot.9c", 0x40001, 0x20000, CRC(0d34419a) SHA1(f16e9fb4cd537d727611cb7dd5537c030671fe1e) )
559
560 ROM_REGION( 0x14000, REGION_CPU2, 0 ) /* 64k for 6502 code */
561 ROM_LOAD( "rriots.12c", 0x10000, 0x4000, CRC(849dd26c) SHA1(05a0b2a5f7ee4437448b5f076d3066d96dec2320) )
562 ROM_CONTINUE( 0x04000, 0xc000 )
563
564 ROM_REGION( 0xc0000, REGION_GFX1, ROMREGION_DISPOSE )
565 ROM_LOAD( "rriot.22d", 0x000000, 0x20000, CRC(b7451f92) SHA1(9fd17913630e457e406e596f2d86afff98787750) ) /* playfield, planes 0-1 */
566 ROM_LOAD( "rriot.22c", 0x020000, 0x20000, CRC(90f3c6ee) SHA1(7607509e2d3b2080a918cfaf2879dbed6b79d029) )
567 ROM_LOAD( "rriot20.21d", 0x040000, 0x20000, CRC(d40de62b) SHA1(fa6dfd20bdad7874ae33a1027a9bb0ea200f86ca) ) /* playfield, planes 2-3 */
568 ROM_LOAD( "rriot20.21c", 0x060000, 0x20000, CRC(a7e836b1) SHA1(d41f1e4166ca757176c6976be2a953db5db05e48) )
569 ROM_LOAD( "rriot.20d", 0x080000, 0x20000, CRC(a81ae93f) SHA1(b694ba5fab35f8fa505a02039ae62f7af3c7ae1d) ) /* playfield, planes 4-5 */
570 ROM_LOAD( "rriot.20c", 0x0a0000, 0x20000, CRC(b8a6d15a) SHA1(43d2be9d40a84b2c01d80bbcac737eda04d55999) )
571
572 ROM_REGION( 0x020000, REGION_GFX2, ROMREGION_DISPOSE )
573 ROM_LOAD( "rriot.22j", 0x000000, 0x20000, CRC(0005bab0) SHA1(257e1b23eea117fe6701a67134b96d9d9fe10caf) ) /* alphanumerics */
574
575 ROM_REGION16_BE( 0x200000, REGION_GFX3, 0 )
576 ROM_LOAD16_BYTE( "rriot.2s", 0x000000, 0x20000, CRC(19590a94) SHA1(e375b7e01a8b1f366bb4e7750e33f0b6d9ae2042) )
577 ROM_LOAD16_BYTE( "rriot.2p", 0x000001, 0x20000, CRC(c2bf3f69) SHA1(f822359070b1907973ee7ee35469f4a59f720830) )
578 ROM_LOAD16_BYTE( "rriot.3s", 0x040000, 0x20000, CRC(bab110e4) SHA1(0c4e3521474249517e7832df1bc63aca6d6a6c91) )
579 ROM_LOAD16_BYTE( "rriot.3p", 0x040001, 0x20000, CRC(791ad2c5) SHA1(4ef218fbf38a9c6b58c86f203843988df1c935f6) )
580 ROM_LOAD16_BYTE( "rriot.4s", 0x080000, 0x20000, CRC(79cba484) SHA1(ce361a432f1fe627086bab3c1131118fd15056f1) )
581 ROM_LOAD16_BYTE( "rriot.4p", 0x080001, 0x20000, CRC(86a2e257) SHA1(98d95d2e67fecc332f6c66358a1f8d58b168c74b) )
582 ROM_LOAD16_BYTE( "rriot.5s", 0x0c0000, 0x20000, CRC(67d28478) SHA1(cfc9da6d20c65d11c2a59a38660a8da4d1cc219d) )
583 ROM_LOAD16_BYTE( "rriot.5p", 0x0c0001, 0x20000, CRC(74638838) SHA1(bea0fb21ccb946e023c88791ce5a8dd92b44baec) )
584 ROM_LOAD16_BYTE( "rriot.6s", 0x100000, 0x20000, CRC(24933c37) SHA1(516393aae51fc9634a5c6d5134be058d6067e114) )
585 ROM_LOAD16_BYTE( "rriot.6p", 0x100001, 0x20000, CRC(054a163b) SHA1(1b0b129c093398bc5c14b3fdd87dfe149f555fac) )
586 ROM_LOAD16_BYTE( "rriot.7s", 0x140000, 0x20000, CRC(31ff090a) SHA1(7b43ed37901c3f94cae90c84b3c8c689d7b64dd6) )
587 ROM_LOAD16_BYTE( "rriot.7p", 0x140001, 0x20000, CRC(bbe5b69b) SHA1(9eaa551fba763824d36fc41bfe0e6d735a9e68c5) )
588 ROM_LOAD16_BYTE( "rriot.8s", 0x180000, 0x20000, CRC(6c89d2c5) SHA1(0bf2990ce1cd5ec5b84f7e3171725540e6238408) )
589 ROM_LOAD16_BYTE( "rriot.8p", 0x180001, 0x20000, CRC(40d9bde5) SHA1(aca6e07ea96e4618412d32fe4d4cd293ae82d940) )
590 ROM_LOAD16_BYTE( "rriot.9s", 0x1c0000, 0x20000, CRC(eca3c595) SHA1(5d067b7c02675b1e6dd3c4046697a16f873f80af) )
591 ROM_LOAD16_BYTE( "rriot.9p", 0x1c0001, 0x20000, CRC(88acdb53) SHA1(5bf2424ee75a25248a8ce38c8605b6780da4e323) )
592
593 ROM_REGION( 0x100000, REGION_SOUND1, 0 ) /* 1MB for ADPCM samples */
594 ROM_LOAD( "rriots.19e", 0x80000, 0x20000, CRC(2db638a7) SHA1(45da8088f7439beacc3056952a4d631d9633efa7) )
595 ROM_LOAD( "rriots.17e", 0xa0000, 0x20000, CRC(e1dd7f9e) SHA1(6b9a240aa84d210d3052daab6ea26f9cd0e62dc1) )
596 ROM_LOAD( "rriots.15e", 0xc0000, 0x20000, CRC(64d410bb) SHA1(877bccca7ff37a9dd8294bc1453487a2f516ca7d) )
597 ROM_LOAD( "rriots.12e", 0xe0000, 0x20000, CRC(bffd01c8) SHA1(f6de000f61ea0c1ddb31ee5301506e5e966638c2) )
598
599 ROM_REGION( 0x0600, REGION_PROMS, ROMREGION_DISPOSE ) /* microcode for growth renderer */
600 ROM_LOAD( "089-1001.bin", 0x0000, 0x0200, CRC(5836cb5a) SHA1(2c797f6a1227d6e1fd7a12f99f0254072c8c266e) )
601 ROM_LOAD( "089-1002.bin", 0x0200, 0x0200, CRC(44288753) SHA1(811582015264f85a32643196cdb331a41430318f) )
602 ROM_LOAD( "089-1003.bin", 0x0400, 0x0200, CRC(1f571706) SHA1(26d5ea59163b3482ab1f8a26178d0849c5fd9692) )
603 ROM_END
604
605
606 ROM_START( guardian )
607 ROM_REGION( 0x80004, REGION_CPU1, 0 ) /* 8*64k for 68000 code */
608 ROM_LOAD16_BYTE( "2021.8e", 0x00000, 0x20000, CRC(efea1e02) SHA1(f0f1ef300f36953aff73b68ffe6d9950ac575f7d) )
609 ROM_LOAD16_BYTE( "2020.8cd", 0x00001, 0x20000, CRC(a8f655ba) SHA1(2defe4d138613e248718a617d103794e051746f7) )
610 ROM_LOAD16_BYTE( "2023.9e", 0x40000, 0x20000, CRC(cfa29316) SHA1(4e0e76304e29ee59bc2ce9a704e3f651dc9d473c) )
611 ROM_LOAD16_BYTE( "2022.9cd", 0x40001, 0x20000, CRC(ed2abc91) SHA1(81531040d5663f6ab82e924210056e3737e17a8d) )
612
613 ROM_REGION( 0x14000, REGION_CPU2, 0 ) /* 64k for 6502 code */
614 ROM_LOAD( "0080-snd.12c", 0x10000, 0x4000, CRC(0388f805) SHA1(49c11313bc4192dbe294cf68b652cb19047889fd) )
615 ROM_CONTINUE( 0x04000, 0xc000 )
616
617 ROM_REGION( 0x180000, REGION_GFX1, ROMREGION_DISPOSE )
618 ROM_LOAD( "0037a.23e", 0x000000, 0x80000, CRC(ca10b63e) SHA1(243a2a440e1bc9135d3dbe6553d39c54b9bdcd13) ) /* playfield, planes 0-1 */
619 ROM_LOAD( "0038a.22e", 0x080000, 0x80000, CRC(cb1431a1) SHA1(d7b8f49a1e794ca2083e4bf0fa3870ce08caa53a) ) /* playfield, planes 2-3 */
620 ROM_LOAD( "0039a.20e", 0x100000, 0x80000, CRC(2eee7188) SHA1(d3adbd7b20bc898fee35b6ba781e7775f82acd19) ) /* playfield, planes 4-5 */
621
622 ROM_REGION( 0x020000, REGION_GFX2, ROMREGION_DISPOSE )
623 ROM_LOAD( "0030.23k", 0x000000, 0x20000, CRC(0fd7baa1) SHA1(7802d732e5173291628ed498ad0fab71aeef4688) ) /* alphanumerics */
624
625 ROM_REGION16_BE( 0x600000, REGION_GFX3, 0 )
626 ROM_LOAD16_BYTE( "0041.2s", 0x000000, 0x80000, CRC(a2a5ae08) SHA1(d99f925bbc9a72432e13328ee8422fde615db90f) )
627 ROM_LOAD16_BYTE( "0040.2p", 0x000001, 0x80000, CRC(ef95132e) SHA1(288de1d15956a612b7d19ceb2cf853490bf42b05) )
628 ROM_LOAD16_BYTE( "0043.3s", 0x100000, 0x80000, CRC(6438b8e4) SHA1(ee1446209fbcab8b17c88c53b65e754a85f279d1) )
629 ROM_LOAD16_BYTE( "0042.3p", 0x100001, 0x80000, CRC(46bf7c0d) SHA1(12414de2698178b158ec4ca0fbb176943c944cec) )
630 ROM_LOAD16_BYTE( "0045.4s", 0x200000, 0x80000, CRC(4f4f2bee) SHA1(8276cdcd252d2d8fa41ab28e76a6bd72613c14ec) )
631 ROM_LOAD16_BYTE( "0044.4p", 0x200001, 0x80000, CRC(20a4250b) SHA1(6a2e2596a9eef2792f7cdab648dd455b8e420a74) )
632 ROM_LOAD16_BYTE( "0063a.6s", 0x300000, 0x80000, CRC(93933bcf) SHA1(a67d4839ffdb0eafbc2d68a60fb3bf1507c793cf) )
633 ROM_LOAD16_BYTE( "0062a.6p", 0x300001, 0x80000, CRC(613e6f1d) SHA1(fd2ea18d245d0895e0bac6c5caa6d35fdd6a199f) )
634 ROM_LOAD16_BYTE( "0065a.7s", 0x400000, 0x80000, CRC(6bcd1205) SHA1(c883c55f88d274ba8aa48c962406b253e1f8001e) )
635 ROM_LOAD16_BYTE( "0064a.7p", 0x400001, 0x80000, CRC(7b4dce05) SHA1(36545917388e704f73a9b4d85189ec978d655b63) )
636 ROM_LOAD16_BYTE( "0067a.9s", 0x500000, 0x80000, CRC(15845fba) SHA1(f7b670a8d48a5e9c261150914a06ef9a938a84e7) )
637 ROM_LOAD16_BYTE( "0066a.9p", 0x500001, 0x80000, CRC(7130c575) SHA1(b3ea109981a1e5c631705b23dfad4a3a3daf7734) )
638
639 ROM_REGION( 0x100000, REGION_SOUND1, 0 ) /* 1MB for ADPCM samples */
640 ROM_LOAD( "0010-snd", 0x80000, 0x80000, CRC(bca27f40) SHA1(91a41eac116eb7d9a790abc590eb06328726d1c2) )
641
642 ROM_REGION( 0x0600, REGION_PROMS, ROMREGION_DISPOSE ) /* microcode for growth renderer */
643 ROM_LOAD( "092-1001.bin", 0x0000, 0x0200, CRC(b3251eeb) SHA1(5e83baa70aaa28f07f32657bf974fd87719972d3) )
644 ROM_LOAD( "092-1002.bin", 0x0200, 0x0200, CRC(0c5314da) SHA1(a9c7ee3ab015c7f3ada4200acd2854eb9a5c74b0) )
645 ROM_LOAD( "092-1003.bin", 0x0400, 0x0200, CRC(344b406a) SHA1(f4422f8c0d7004d0277a4fc77718d555f80fcf69) )
646 ROM_END
647
648
649
650 /*************************************
651 *
652 * Driver initialization
653 *
654 *************************************/
655
656 static DRIVER_INIT( roadriot )
657 {
658 static const UINT16 default_eeprom[] =
659 {
660 0x0001,0x01B7,0x01AF,0x01E4,0x0100,0x0130,0x0300,0x01CC,
661 0x0700,0x01FE,0x0500,0x0102,0x0200,0x0108,0x011B,0x01C8,
662 0x0100,0x0107,0x0120,0x0100,0x0125,0x0500,0x0177,0x0162,
663 0x013A,0x010A,0x01B7,0x01AF,0x01E4,0x0100,0x0130,0x0300,
664 0x01CC,0x0700,0x01FE,0x0500,0x0102,0x0200,0x0108,0x011B,
665 0x01C8,0x0100,0x0107,0x0120,0x0100,0x0125,0x0500,0x0177,
666 0x0162,0x013A,0x010A,0xE700,0x0164,0x0106,0x0100,0x0104,
667 0x01B0,0x0146,0x012E,0x1A00,0x01C8,0x01D0,0x0118,0x0D00,
668 0x0118,0x0100,0x01C8,0x01D0,0x0000
669 };
670 atarigen_eeprom_default = default_eeprom;
671 atarijsa_init(1, 3, 2, 0x0040);
672 atarijsa3_init_adpcm(REGION_SOUND1);
673
674 atarig42_playfield_base = 0x400;
675 atarig42_motion_object_base = 0x200;
676 atarig42_motion_object_mask = 0x1ff;
677
678 sloop_base = install_mem_read16_handler(0, 0x000000, 0x07ffff, roadriot_sloop_data_r);
679 sloop_base = install_mem_write16_handler(0, 0x000000, 0x07ffff, roadriot_sloop_data_w);
680
681 asic65_config(ASIC65_STANDARD);
682 /*
683 Road Riot color MUX
684
685 CRA10=!MGEP*!AN.VID7*AN.0 -- if (mopri < pfpri) && (!alpha)
686 +!AN.VID7*AN.0*MO.0 or if (mopix == 0) && (!alpha)
687
688 CRA9=MGEP*!AN.VID7*AN.0*!MO.0 -- if (mopri >= pfpri) && (mopix != 0) && (!alpha)
689 +!AN.VID7*AN.0*PF.VID9 or if (pfpix & 0x200) && (!alpha)
690
691 CRA8=MGEP*!AN.VID7*AN.0*!MO.0*MVID8 -- if (mopri >= pfpri) && (mopix != 0) && (mopix & 0x100) && (!alpha)
692 +!MGEP*!AN.VID7*AN.0*PF.VID8 or if (mopri < pfpri) && (pfpix & 0x100) && (!alpha)
693 +!AN.VID7*AN.0*MO.0*PF.VID8 or if (pfpix & 0x100) && (!alpha)
694
695 CRMUXB=!AN.VID7*AN.0 -- if (!alpha)
696
697 CRMUXA=!MGEP -- if (mopri < pfpri)
698 +MO.0 or (mopix == 0)
699 +AN.VID7 or (alpha)
700 +!AN.0
701 */
702 }
703
704
DRIVER_INIT(guardian)705 static DRIVER_INIT( guardian )
706 {
707 static const UINT16 default_eeprom[] =
708 {
709 0x0001,0x01FD,0x01FF,0x01EF,0x0100,0x01CD,0x0300,0x0104,
710 0x0700,0x0117,0x0F00,0x0133,0x1F00,0x0133,0x2400,0x0120,
711 0x0600,0x0104,0x0300,0x010C,0x01A0,0x0100,0x0152,0x0179,
712 0x012D,0x01BD,0x01FD,0x01FF,0x01EF,0x0100,0x01CD,0x0300,
713 0x0104,0x0700,0x0117,0x0F00,0x0133,0x1F00,0x0133,0x2400,
714 0x0120,0x0600,0x0104,0x0300,0x010C,0x01A0,0x0100,0x0152,
715 0x0179,0x012D,0x01BD,0x8C00,0x0118,0x01AB,0x015A,0x0100,
716 0x01D0,0x010B,0x01B8,0x01C7,0x01E2,0x0134,0x0100,0x010A,
717 0x01BE,0x016D,0x0142,0x0100,0x0120,0x0109,0x0110,0x0141,
718 0x0109,0x0100,0x0108,0x0134,0x0105,0x0148,0x1400,0x0000
719 };
720 atarigen_eeprom_default = default_eeprom;
721 atarijsa_init(1, 3, 2, 0x0040);
722 atarijsa3_init_adpcm(REGION_SOUND1);
723
724 atarig42_playfield_base = 0x000;
725 atarig42_motion_object_base = 0x400;
726 atarig42_motion_object_mask = 0x3ff;
727
728 /* it looks like they jsr to $80000 as some kind of protection */
729 /* put an RTS there so we don't die */
730 *(data16_t *)&memory_region(REGION_CPU1)[0x80000] = 0x4E75;
731
732 sloop_base = install_mem_read16_handler(0, 0x000000, 0x07ffff, guardians_sloop_data_r);
733 sloop_base = install_mem_write16_handler(0, 0x000000, 0x07ffff, guardians_sloop_data_w);
734
735 asic65_config(ASIC65_GUARDIANS);
736 /*
737 Guardians color MUX
738
739 CRA10=MGEP*!AN.VID7*AN.0*!MO.0 -- if (mopri >= pfpri) && (!alpha) && (mopix != 0)
740
741 CRA9=MGEP*!AN.VID7*AN.0*!MO.0*MVID9 -- if (mopri >= pfpri) && (!alpha) && (mopix != 0) && (mopix & 0x200)
742 +!MGEP*!AN.VID7*AN.0*PF.VID9 or if (mopri < pfpri) && (!alpha) && (pfpix & 0x200)
743 +!AN.VID7*AN.0*MO.0*PF.VID9 or if (mopix == 0) && (!alpha) && (pfpix & 0x200)
744
745 CRA8=MGEP*!AN.VID7*AN.0*!MO.0*MVID8 -- if (mopri >= pfpri) && (!alpha) && (mopix != 0) && (mopix & 0x100)
746 +!MGEP*!AN.VID7*AN.0*PF.VID8 or if (mopri < pfpri) && (!alpha) && (pfpix & 0x100)
747 +!AN.VID7*AN.0*MO.0*PF.VID8 or if (mopix == 0) && (!alpha) && (pfpix & 0x100)
748
749 CRMUXB=!AN.VID7*AN.0 -- if (!alpha)
750
751 CRMUXA=!MGEP -- if (mopri < pfpri)
752 +MO.0 or (mopix == 0)
753 +AN.VID7 or (alpha)
754 +!AN.0
755 */
756 }
757
758
759
760 /*************************************
761 *
762 * Game driver(s)
763 *
764 *************************************/
765
766 GAMEX( 1991, roadriot, 0, atarig42, roadriot, roadriot, ROT0, "Atari Games", "Road Riot 4WD", GAME_UNEMULATED_PROTECTION )
767 GAME ( 1992, guardian, 0, atarig42, guardian, guardian, ROT0, "Atari Games", "Guardians of the Hood" )
768