/
studio2.cpp
816 lines (668 loc) · 29.9 KB
/
studio2.cpp
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
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*
RCA Studio II
PCB Layout
----------
1809746-S1-E
|----------------------------------------------------------------------------------------------------------|
| |----------------------------| |
| |----------------------------| CA555 7805 |
| SPKR CN1 |
| |
| |-----------| |
| | Output | |
| ROM.4 ROM.3 ROM.2 ROM.1 CDP1822 CDP1822 CDP1822 CDP1822 |TV Module | |
| | | |
| CDP1802 TA10171V1 | | |
| | | |
| | | |
| | | |
| |-----------| |
| |
| CD4042 CD4001 CD4515 |
| |
| CN2 CN3 |
|----------------------------------------------------------------------------------------------------------|
Notes:
All IC's shown.
CDP1802 - RCA CDP1802CE Microprocessor
TA10171V1 - RCA TA10171V1 NTSC Video Display Controller (VDC) (= RCA CDP1861)
CDP1822 - RCA CDP1822NCE 256 x4 RAM (= Mitsubishi M58721P)
ROM.x - RCA CDP1831CE 512 x8 mask ROM. All ROMs are marked 'PROGRAM COPYRIGHT (C) RCA CORP. 1977'
CD4001 - 4001 Quad 2-Input NOR Buffered B Series Gate (4000-series CMOS TTL logic IC)
CD4042 - 4042 Quad Clocked D Latch (4000-series CMOS TTL logic IC)
CD4515 - 4515 4-Bit Latched/4-to-16 Line Decoders (4000-series CMOS TTL logic IC)
CA555 - CA555CG General Purpose Single Bipolar Timer (= NE555)
7805 - Voltage regulator, input 10V-35V, output +5V
SPKR - Loudspeaker, 8 ohms, 0.3 W
CN1 - ROM cartridge connector, 2x22 pins, 0.154" spacing
CN2 - Player A keypad connector, 1x12 pins
CN3 - Player B keypad connector, 1x12 pins
*/
/*
Toshiba Visicom Console (RCA Studio II clone)
Toshiba, 1978
PCB Layout Many resistors/caps
---------- 7.5VDC / transistors in this area
\/ /---|-----/
|------------------------------------------||---|-------| |-----|C|------|
|D235 POT TC4011 CART_SLOT | | | TV Modulator |
|HEATSINK | | | |
| TC4515 TC4049 TC4011 74LS08| | | SW (VHF Ch1) |
|DIODES(x20) 74LS74 74LS73| | | (VHF Ch2) |
|-----------| 3.579545MHz | |
| CDP1802 | POT | |--------------|
|TMM331 | |
| CDP1861 TC5012 TC5012 |
| TC4021 TC4021 | |
| TC5012 \-----/ |
| 2111 2111 2111 74LS74 |
|TC4042 2111 2111 2111 TC4011 |
|-------------------------------------------|
Notes: (all chips shown above)
CDP1802 - RCA CDP1802 CPU (DIP40), clock 1.7897725MHz [3.579545/2]
CDP1861 - RCA CDP1861 Video Controller (DIP24)
VSync - 60.4533Hz \ (measured on pin 6)
HSync - 15.8387kHz /
Clock - 223.721562kHz [3.579545/16] (measured on pin 1)
2111 - NEC D2111AL-4 256 bytes x4 SRAM (DIP18, x6). Total 1.5k
C - Composite Video Output to TV from TV Modulator
TMM331 - Toshiba TMM331AP 2k x8 mask ROM (DIP24)
Pinout:
TMM331
|----\/----|
A7 |1 24| VCC
A8 |2 23| D0
A9 |3 22| D1
A10 |4 21| D2
A0 |5 20| D3
A1 |6 19| D4
A2 |7 18| D5
A3 |8 17| D6
A4 |9 16| D7
A5 |10 15| E0 (measured LOW)
A6 |11 14| E1 (NC?)
GND |12 13| E2 (measured LOW)
|----------|
E0 - E2 are Programmable Chip Select Inputs
TMM331 is compatible with AMI S6831A, AMD AM9217,
Intel 2316A/8316A, MOSTEK MK31000, GI RO-3-8316,
NATIONAL/NEC/SYNERTEK 2316A etc
Cartridges
----------
Inside is a Toshiba TMM331AP ROM, which is pin compatible with the Signetics S6831.
The cartridge to TMM331 pin connections are as follows, with cartridge pin 1 being the leftmost angled contact:
Pin 1 to ROM pins 12,13 (GND and E2)
Pin 2 to ROM pins 24,15 (VCC and E0)
Pin 3 to ROM pin 23 (D0)
Pin 4 to ROM pin 22 (D1)
Pin 5 to ROM pin 21 (D2)
Pin 6 to ROM pin 20 (D3)
Pin 7 to ROM pin 19 (D4)
Pin 8 to ROM pin 18 (D5)
Pin 9 to ROM pin 17 (D6)
Pin 10 to ROM pin 16 (D7)
Pin 11 to ROM pin 14 (E1)
Pin 12 to ROM pin 11 (A6)
Pin 13 to ROM pin 10 (A5)
Pin 14 to ROM pin 9 (A4)
Pin 15 to ROM pin 8 (A3)
Pin 16 to ROM pin 7 (A2)
Pin 17 to ROM pin 6 (A1)
Pin 18 to ROM pin 5 (A0)
Pin 19 to ROM pin 1 (A7)
Pin 20 to ROM pin 4 (A10)
Pin 21 to ROM pin 3 (A9)
Pin 22 to ROM pin 2 (A8)
*/
/*
Mustang 9016 Telespiel Computer
PCB Layout
----------
|----------------------------------------------------------------------------------------------------------|
|7805 |----------------------------| CD4069 MC14001 |
| |----------------------------| |
| CN1 |
| |
| ROM.IC13 ROM.IC14 CDP1822 CDP1822 CDP1822 CDP1822 |-----------| |
| | Output | |
| |TV Module? | |
| ROM.IC12 CDP1802 CDP1864 | | |
| CDP1822 | | |
| CD4019 CDP1858 CD4081 CD4069 | | |
| | | |
| CD4515 | | |
| 1.750MHz |-----------| |
| 4.3236MHz |
| |
| |
| |
|----------------------------------------------------------------------------------------------------------|
Notes:
All IC's shown.
CDP1802 - RCA CDP1802CE Microprocessor
CDP1864 - RCA CDP1864CE PAL Video Display Controller (VDC)
CDP1822 - RCA CDP1822NCE 256 x4 RAM (= Mitsubishi M58721P)
ROM.ICx - RCA CDP1833 1k x8 mask ROM. All ROMs are marked 'PROGRAM COPYRIGHT (C) RCA CORP. 1978'
CD4019 - 4019 Quad AND-OR Select Gate (4000-series CMOS TTL logic IC)
CDP1858 - RCA CDP1858E Latch/Decoder - 4-bit
CD4081 - 4081 Quad 2-Input AND Buffered B Series Gate (4000-series CMOS TTL logic IC)
CD4069 - 4069 Hex Buffer, Inverter (4000-series CMOS TTL logic IC)
CD4515 - 4515 4-Bit Latched/4-to-16 Line Decoders (4000-series CMOS TTL logic IC)
7805 - Voltage regulator, input 10V-35V, output +5V
CN1 - ROM cartridge connector, 2x22 pins, 0.154" spacing
*/
/*
TODO:
- NE555 discrete sound
Usage
- All variants: Boot up, then press F3, then press a letter (Q,W,E,A) to choose an inbuilt game.
- If using a cart, boot up, press F3, then follow the instructions that came with the cart (usually press Q).
- Visicom has no support for st2 files.
- Visicom always reserves buttons 1,2,3,4,7(Q,W,E,A,Z) for the internal games, which are always available.
The cartridges use 5(S) to start, except gambler1 which uses 9(C).
Memory organisation of the Studio II:
- RAM is mirrored everywhere except:
(a) when A9 is high;
(b) when a rom is active;
(c) when the cartridge wants to disable it;
so in effect, RAM exists at 0800-09FF then every 0x400 boundary onwards.
- The system ROM exists at 0000-03FF and cannot be deactivated.
- The inbuilt games exist at 0400-07FF and are always swapped out when a cart is used.
- The cart "grandpak" also uses 0C00-0FFF with a 2nd rom.
- Some homebrews make use of 0C00-0DFF (asteroids, berzerk, pacman, scramble). The
ST2 loader will enable the extra rombank as needed.
*/
#include "emu.h"
#include "cpu/cosmac/cosmac.h"
#include "sound/beep.h"
#include "sound/cdp1864.h"
#include "sound/discrete.h"
#include "video/cdp1861.h"
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
#include "screen.h"
#include "softlist_dev.h"
#include "speaker.h"
namespace {
#define CDP1802_TAG "ic1"
#define CDP1861_TAG "ic2"
#define CDP1864_TAG "cdp1864"
#define SCREEN_TAG "screen"
class studio2_state : public driver_device
{
public:
studio2_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, CDP1802_TAG)
, m_rom(*this, CDP1802_TAG)
, m_beeper(*this, "beeper")
, m_vdc(*this, CDP1861_TAG)
, m_cart(*this, "cartslot")
, m_clear(*this, "CLEAR")
, m_a(*this, "A")
, m_b(*this, "B")
, m_screen(*this, "screen")
{ }
void studio2_cartslot(machine_config &config);
void studio2(machine_config &config);
DECLARE_INPUT_CHANGED_MEMBER( reset_w );
uint8_t cart_400(offs_t offset);
uint8_t cart_c00(offs_t offset);
uint8_t rom_000(offs_t offset);
uint8_t rom_400(offs_t offset);
protected:
required_device<cosmac_device> m_maincpu;
optional_region_ptr<u8> m_rom;
required_device<beep_device> m_beeper;
optional_device<cdp1861_device> m_vdc;
required_device<generic_slot_device> m_cart;
required_ioport m_clear;
required_ioport m_a;
required_ioport m_b;
required_device<screen_device> m_screen;
virtual void machine_start() override;
virtual void machine_reset() override;
uint8_t dispon_r();
void keylatch_w(uint8_t data);
void dispon_w(uint8_t data);
int clear_r();
int ef3_r();
int ef4_r();
void q_w(int state);
DECLARE_DEVICE_IMAGE_LOAD_MEMBER( cart_load );
/* keyboard state */
uint8_t m_keylatch = 0;
void studio2_io_map(address_map &map);
void studio2_map(address_map &map);
};
class visicom_state : public studio2_state
{
public:
visicom_state(const machine_config &mconfig, device_type type, const char *tag)
: studio2_state(mconfig, type, tag)
, m_color0_ram(*this, "color0_ram")
, m_color1_ram(*this, "color1_ram")
{ }
void visicom(machine_config &config);
private:
virtual uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
required_shared_ptr<uint8_t> m_color0_ram;
required_shared_ptr<uint8_t> m_color1_ram;
virtual void machine_start() override;
void dma_w(offs_t offset, uint8_t data);
void visicom_io_map(address_map &map);
void visicom_map(address_map &map);
};
class mpt02_state : public studio2_state
{
public:
mpt02_state(const machine_config &mconfig, device_type type, const char *tag)
: studio2_state(mconfig, type, tag)
, m_cti(*this, CDP1864_TAG)
, m_color_ram(*this, "color_ram")
{ }
void mpt02(machine_config &config);
private:
required_device<cdp1864_device> m_cti;
virtual void machine_start() override;
virtual void machine_reset() override;
void dma_w(offs_t offset, uint8_t data);
int rdata_r();
int bdata_r();
int gdata_r();
/* video state */
required_shared_ptr<uint8_t> m_color_ram;
uint8_t m_color = 0;
void mpt02_io_map(address_map &map);
void mpt02_map(address_map &map);
};
/***************************************************************************
PARAMETERS
***************************************************************************/
#define LOG 0
/***************************************************************************
IMPLEMENTATION
***************************************************************************/
/* Read/Write Handlers */
void studio2_state::keylatch_w(uint8_t data)
{
m_keylatch = data & 0x0f;
}
uint8_t studio2_state::dispon_r()
{
m_vdc->disp_on_w(1);
m_vdc->disp_on_w(0);
return 0xff;
}
void studio2_state::dispon_w(uint8_t data)
{
m_vdc->disp_on_w(1);
m_vdc->disp_on_w(0);
}
/* Memory Maps */
void studio2_state::studio2_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x01ff).mirror(0xfc00).ram();
}
void studio2_state::studio2_io_map(address_map &map)
{
map.unmap_value_high();
map(0x01, 0x01).r(FUNC(studio2_state::dispon_r));
map(0x02, 0x02).w(FUNC(studio2_state::keylatch_w));
}
void visicom_state::visicom_map(address_map &map)
{
map(0x0000, 0x07ff).rom();
map(0x0800, 0x0fff).r(m_cart, FUNC(generic_slot_device::read_rom));
map(0x1000, 0x10ff).ram();
map(0x1100, 0x11ff).ram().share("color0_ram");
map(0x1300, 0x13ff).ram().share("color1_ram");
}
void visicom_state::visicom_io_map(address_map &map)
{
map(0x01, 0x01).w(FUNC(visicom_state::dispon_w));
map(0x02, 0x02).w(FUNC(visicom_state::keylatch_w));
}
void mpt02_state::mpt02_map(address_map &map)
{
map(0x0000, 0x07ff).rom();
map(0x0800, 0x09ff).ram();
map(0x0b00, 0x0b3f).ram().share("color_ram");
map(0x0c00, 0x0fff).rom();
}
void mpt02_state::mpt02_io_map(address_map &map)
{
map(0x01, 0x01).rw(m_cti, FUNC(cdp1864_device::dispon_r), FUNC(cdp1864_device::step_bgcolor_w));
map(0x02, 0x02).w(FUNC(mpt02_state::keylatch_w));
map(0x04, 0x04).rw(m_cti, FUNC(cdp1864_device::dispoff_r), FUNC(cdp1864_device::tone_latch_w));
}
/* Input Ports */
INPUT_CHANGED_MEMBER( studio2_state::reset_w )
{
if (oldval && !newval)
{
machine_reset();
}
}
static INPUT_PORTS_START( studio2 )
PORT_START("A")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 0") PORT_CODE(KEYCODE_LALT)
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 1") PORT_CODE(KEYCODE_Q)
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 2") PORT_CODE(KEYCODE_W)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 3") PORT_CODE(KEYCODE_E)
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 4") PORT_CODE(KEYCODE_A)
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 5") PORT_CODE(KEYCODE_S)
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 6") PORT_CODE(KEYCODE_D)
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 7") PORT_CODE(KEYCODE_Z)
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 8") PORT_CODE(KEYCODE_X)
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("A 9") PORT_CODE(KEYCODE_C)
PORT_START("B")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 0") PORT_CODE(KEYCODE_0_PAD)
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 1") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 2") PORT_CODE(KEYCODE_8_PAD)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 3") PORT_CODE(KEYCODE_9_PAD)
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 4") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 5") PORT_CODE(KEYCODE_5_PAD)
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 6") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 7") PORT_CODE(KEYCODE_1_PAD)
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 8") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_NAME("B 9") PORT_CODE(KEYCODE_3_PAD)
PORT_START("CLEAR")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("Clear") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CHANGED_MEMBER(DEVICE_SELF, studio2_state, reset_w, 0)
INPUT_PORTS_END
/* Video */
static const rgb_t VISICOM_PALETTE[] =
{
rgb_t(0x00, 0x40, 0x00),
rgb_t(0xaf, 0xdf, 0xe4),
rgb_t(0xb9, 0xc4, 0x2f),
rgb_t(0xef, 0x45, 0x4a)
};
uint32_t visicom_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
m_vdc->screen_update(screen, bitmap, cliprect);
m_vdc->m_bitmap.fill(VISICOM_PALETTE[0], cliprect);
return 0;
}
int mpt02_state::rdata_r()
{
return BIT(m_color, 0);
}
int mpt02_state::bdata_r()
{
return BIT(m_color, 1);
}
int mpt02_state::gdata_r()
{
return BIT(m_color, 2);
}
/* CDP1802 Configuration */
int studio2_state::clear_r()
{
return BIT(m_clear->read(), 0);
}
int studio2_state::ef3_r()
{
return BIT(m_a->read(), m_keylatch);
}
int studio2_state::ef4_r()
{
return BIT(m_b->read(), m_keylatch);
}
void studio2_state::q_w(int state)
{
m_beeper->set_state(state);
}
void visicom_state::dma_w(offs_t offset, uint8_t data)
{
int sx = m_screen->hpos() + 4;
int y = m_screen->vpos();
uint8_t addr = offset & 0xff;
uint8_t color0 = m_color0_ram[addr];
uint8_t color1 = m_color1_ram[addr];
for (int x = 0; x < 8; x++)
{
int color = (BIT(color1, 7) << 1) | BIT(color0, 7);
m_vdc->m_bitmap.pix(y, sx + x) = VISICOM_PALETTE[color];
color0 <<= 1;
color1 <<= 1;
}
}
void mpt02_state::dma_w(offs_t offset, uint8_t data)
{
uint8_t addr = ((offset & 0xe0) >> 2) | (offset & 0x07);
m_color = m_color_ram[addr];
m_cti->con_w(0); // HACK
m_cti->dma_w(data);
}
/* Machine Initialization */
// trampolines to cartridge
uint8_t studio2_state::rom_000(offs_t offset) { return m_rom[offset]; }
uint8_t studio2_state::rom_400(offs_t offset) { return m_rom[offset+0x400]; }
uint8_t studio2_state::cart_400(offs_t offset) { return m_cart->read_rom(offset); }
uint8_t studio2_state::cart_c00(offs_t offset) { return m_cart->read_rom(offset + 0x800); }
void visicom_state::machine_start()
{
// register for state saving
save_item(NAME(m_keylatch));
}
void studio2_state::machine_start()
{
m_maincpu->space(AS_PROGRAM).unmap_readwrite(0x0000, 0x07ff);
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0000, 0x03ff, read8sm_delegate(*this, FUNC(studio2_state::rom_000)));
if (m_cart->exists())
{
// cart always overlaps the inbuilt game roms
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0400, 0x07ff, read8sm_delegate(*this, FUNC(studio2_state::cart_400)));
}
else
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0400, 0x07ff, read8sm_delegate(*this, FUNC(studio2_state::rom_400)));
// register for state saving
save_item(NAME(m_keylatch));
}
void mpt02_state::machine_start()
{
if (m_cart->exists())
{
// cart always overlaps the inbuilt game roms
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0400, 0x07ff, read8sm_delegate(*this, FUNC(studio2_state::cart_400)));
}
// register for state saving
save_item(NAME(m_keylatch));
}
void studio2_state::machine_reset()
{
m_vdc->reset();
}
void mpt02_state::machine_reset()
{
m_cti->reset();
}
DEVICE_IMAGE_LOAD_MEMBER( studio2_state::cart_load )
{
uint32_t size;
// always alloc 3K, even if range $400-$600 is not read by the system (RAM is present there)
m_cart->rom_alloc(0xc00, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
if (!image.loaded_through_softlist())
{
if (image.is_filetype("st2"))
{
char header[0x100];
uint8_t pages[64];
uint8_t blocks;
if (image.length() < 0x200)
return std::make_pair(image_error::INVALIDLENGTH, "Invalid .ST2 ROM file (must be at least 512 bytes)");
image.fread(&header, 0x100);
// validate
if (strncmp((const char *)header, "RCA2", 4))
return std::make_pair(image_error::INVALIDIMAGE, "Not an .ST2 ROM file (missing header signature)");
blocks = header[4];
if ((blocks < 2) || (blocks > 11))
return std::make_pair(image_error::INVALIDIMAGE, "Invalid .ST2 ROM file (must be 2 to 11 blocks)");
if (image.length() != (blocks << 8))
logerror("Wrong sized image: Expected 0x%04X; Found 0x%04X\n",blocks<<8,image.length());
char* catalogue = &header[16];
char* title = &header[32];
memcpy(&pages, &header[64], 64);
logerror("ST2 Catalogue: %s\n", catalogue);
logerror("ST2 Title: %s\n", title);
/* read ST2 cartridge into memory */
for (int block = 0; block < (blocks - 1); block++)
{
u16 offset = pages[block] << 8;
if (pages[block] < 4)
logerror("ST2 invalid block %u to 0x%04x\n", block, offset);
else
{
logerror("ST2 Reading block %u to 0x%04x\n", block, offset);
if (pages[block] == 0xC)
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0c00, 0x0fff, read8sm_delegate(*this, FUNC(studio2_state::cart_c00)));
image.fread(m_cart->get_rom_base() + offset - 0x400, 0x100);
}
}
}
else
{
size = image.length();
if (size > 0x400)
return std::make_pair(image_error::INVALIDIMAGE, "Unsupported cartridge size (must be not more than 1K)");
image.fread(m_cart->get_rom_base(), size);
}
}
else
{
// Studio II and MPT-2 carts might map their data at $400-$7ff and $c00-$fff
if (image.get_software_region("rom_400"))
memcpy(m_cart->get_rom_base() + 0x000, image.get_software_region("rom_400"), image.get_software_region_length("rom_400"));
if (image.get_software_region("rom_c00"))
{
m_maincpu->space(AS_PROGRAM).install_read_handler(0x0c00, 0x0fff, read8sm_delegate(*this, FUNC(studio2_state::cart_c00)));
memcpy(m_cart->get_rom_base() + 0x800, image.get_software_region("rom_c00"), image.get_software_region_length("rom_c00"));
}
}
return std::make_pair(std::error_condition(), std::string());
}
/* Machine Drivers */
void studio2_state::studio2_cartslot(machine_config &config)
{
GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "studio2_cart", "st2,bin,rom").set_device_load(FUNC(studio2_state::cart_load));
/* software lists */
SOFTWARE_LIST(config, "cart_list").set_original("studio2");
}
void studio2_state::studio2(machine_config &config)
{
/* basic machine hardware */
CDP1802(config, m_maincpu, 1760000); /* the real clock is derived from an oscillator circuit */
m_maincpu->set_addrmap(AS_PROGRAM, &studio2_state::studio2_map);
m_maincpu->set_addrmap(AS_IO, &studio2_state::studio2_io_map);
m_maincpu->wait_cb().set_constant(1);
m_maincpu->clear_cb().set(FUNC(studio2_state::clear_r));
m_maincpu->ef3_cb().set(FUNC(studio2_state::ef3_r));
m_maincpu->ef4_cb().set(FUNC(studio2_state::ef4_r));
m_maincpu->q_cb().set(FUNC(studio2_state::q_w));
m_maincpu->dma_wr_cb().set(m_vdc, FUNC(cdp1861_device::dma_w));
/* video hardware */
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
CDP1861(config, m_vdc, 1760000).set_screen(m_screen);
m_vdc->int_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_INT);
m_vdc->dma_out_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_DMAOUT);
m_vdc->efx_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_EF1);
/* sound hardware */
SPEAKER(config, "mono").front_center();
BEEP(config, m_beeper, 300).add_route(ALL_OUTPUTS, "mono", 1.00);
studio2_cartslot(config);
}
void visicom_state::visicom(machine_config &config)
{
/* basic machine hardware */
CDP1802(config, m_maincpu, XTAL(3'579'545)/2);
m_maincpu->set_addrmap(AS_PROGRAM, &visicom_state::visicom_map);
m_maincpu->set_addrmap(AS_IO, &visicom_state::visicom_io_map);
m_maincpu->wait_cb().set_constant(1);
m_maincpu->clear_cb().set(FUNC(visicom_state::clear_r));
m_maincpu->ef3_cb().set(FUNC(visicom_state::ef3_r));
m_maincpu->ef4_cb().set(FUNC(visicom_state::ef4_r));
m_maincpu->q_cb().set(FUNC(visicom_state::q_w));
m_maincpu->dma_wr_cb().set(FUNC(visicom_state::dma_w));
/* video hardware */
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_screen_update(FUNC(visicom_state::screen_update));
CDP1861(config, m_vdc, XTAL(3'579'545)/2).set_screen(m_screen);
m_vdc->int_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_INT);
m_vdc->dma_out_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_DMAOUT);
m_vdc->efx_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_EF1);
/* sound hardware */
SPEAKER(config, "mono").front_center();
BEEP(config, m_beeper, 300).add_route(ALL_OUTPUTS, "mono", 1.00);
GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "visicom_cart", "bin,rom");
/* software lists */
SOFTWARE_LIST(config, "cart_list").set_original("visicom");
}
void mpt02_state::mpt02(machine_config &config)
{
/* basic machine hardware */
CDP1802(config, m_maincpu, 1.75_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &mpt02_state::mpt02_map);
m_maincpu->set_addrmap(AS_IO, &mpt02_state::mpt02_io_map);
m_maincpu->wait_cb().set_constant(1);
m_maincpu->clear_cb().set(FUNC(mpt02_state::clear_r));
m_maincpu->ef3_cb().set(FUNC(mpt02_state::ef3_r));
m_maincpu->ef4_cb().set(FUNC(mpt02_state::ef4_r));
m_maincpu->q_cb().set(FUNC(mpt02_state::q_w));
m_maincpu->dma_wr_cb().set(FUNC(mpt02_state::dma_w));
/* video/sound hardware */
SPEAKER(config, "mono").front_center();
BEEP(config, m_beeper, 300).add_route(ALL_OUTPUTS, "mono", 1.00);
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
CDP1864(config, m_cti, 1.75_MHz_XTAL).set_screen(m_screen);
m_cti->inlace_cb().set_constant(0);
m_cti->int_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_INT);
m_cti->dma_out_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_DMAOUT);
m_cti->efx_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_EF1);
m_cti->rdata_cb().set(FUNC(mpt02_state::rdata_r));
m_cti->bdata_cb().set(FUNC(mpt02_state::bdata_r));
m_cti->gdata_cb().set(FUNC(mpt02_state::gdata_r));
m_cti->set_chrominance(RES_K(4.7), RES_K(8.2), RES_K(4.7), RES_K(22));
m_cti->add_route(ALL_OUTPUTS, "mono", 0.25);
studio2_cartslot(config);
}
/* ROMs */
ROM_START( studio2 )
ROM_REGION( 0x1000, CDP1802_TAG, 0 )
ROM_LOAD( "84932.ic11", 0x000, 0x200, CRC(283b7e65) SHA1(4b6d21cde59712ecb5941ff63d8eb161420b0aac) )
ROM_LOAD( "84933.ic12", 0x200, 0x200, CRC(a396b77c) SHA1(023517f67af61790e6916b6c4dbe2d9dc07ae3ff) )
ROM_LOAD( "85456.ic13", 0x400, 0x200, CRC(d25cf97f) SHA1(d489f41f1125c76cc8ed9defa82a877ae014ef21) )
ROM_LOAD( "85457.ic14", 0x600, 0x200, CRC(74aa724f) SHA1(085832f29e0d2a387c75463d66c54fb6c1e9e72c) )
ROM_END
ROM_START( visicom )
ROM_REGION( 0x1000, CDP1802_TAG, 0 )
ROM_LOAD( "visicom.q003", 0x000, 0x800, CRC(23d22074) SHA1(a0a8be23f70621a2bd8010b1134e8a0019075bf1) )
ROM_END
ROM_START( mpt02 )
ROM_REGION( 0x1000, CDP1802_TAG, 0 )
ROM_LOAD( "86676.ic13", 0x000, 0x400, CRC(a7d0dd3b) SHA1(e1881ab4d67a5d735dd2c8d7e924e41df6f2aeec) )
ROM_LOAD( "86677b.ic14", 0x400, 0x400, CRC(82a2d29e) SHA1(37e02089d611db10bad070d89c8801de41521189) )
ROM_LOAD( "87201.ic12", 0xc00, 0x400, CRC(8006a1e3) SHA1(b67612d98231485fce55d604915abd19b6d64eac) )
ROM_END
#define rom_mtc9016 rom_mpt02
#define rom_shmc1200 rom_mpt02
#define rom_cm1200 rom_mpt02
#define rom_apollo80 rom_mpt02
ROM_START( mpt02h ) // doesn't have built-in games. It came with the pack-in cart 'Grand Pack'
ROM_REGION( 0x1000, CDP1802_TAG, 0 )
ROM_LOAD( "86676.ic13", 0x000, 0x400, CRC(a7d0dd3b) SHA1(e1881ab4d67a5d735dd2c8d7e924e41df6f2aeec) )
ROM_END
} // Anonymous namespace
/* Game Drivers */
// YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS
CONS( 1977, studio2, 0, 0, studio2, studio2, studio2_state, empty_init, "RCA", "Studio II", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
CONS( 1978, visicom, studio2, 0, visicom, studio2, visicom_state, empty_init, "Toshiba", "Visicom COM-100 (Japan)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
CONS( 1978, mpt02, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Soundic", "Victory MPT-02 Home TV Programmer (Austria)", MACHINE_SUPPORTS_SAVE ) // It seems to have been sold in various countries, not only Austria
CONS( 1978, mpt02h, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Hanimex", "MPT-02 Jeu TV Programmable (France)", MACHINE_SUPPORTS_SAVE )
CONS( 1978, mtc9016, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Mustang", "9016 Telespiel Computer (Germany)", MACHINE_SUPPORTS_SAVE )
CONS( 1978, shmc1200, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Sheen", "M1200 Micro Computer (Australia)", MACHINE_SUPPORTS_SAVE )
CONS( 1978, cm1200, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Conic", "M-1200 (?)", MACHINE_SUPPORTS_SAVE )
CONS( 1978, apollo80, studio2, 0, mpt02, studio2, mpt02_state, empty_init, "Academy", "Apollo 80 (Germany)", MACHINE_SUPPORTS_SAVE )