summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/replicator.cpp
blob: 972be03daf017df87d79f956c00458a4ba227936 (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
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
// license:GPL-2.0+
// copyright-holders:Felipe Sanches
/*
    Replicator 1 desktop 3d printer

    driver by Felipe Correa da Silva Sanches <fsanches@metamaquina.com.br>

    Changelog:

    2013 DEC 28 [Felipe Sanches]:
        * LCD now works. We can see the firmware boot screen :-)

    2013 DEC 24 [Felipe Sanches]:
        * declaration of internal EEPROM

    2013 DEC 18 [Felipe Sanches]:
        * Initial driver skeleton
*/

// TODO:
// * figure out what's wrong with the keypad inputs (interface seems to be blocked in the first screen)
// * fix avr8 timer/counter #0 (toggle OC0B) and #5 (overflow interrupt "Microsecond timer") so that we get the buzzer to work
// * figure-out correct size of internal EEPROM
// * emulate an SD Card
// * implement avr8 WDR (watchdog reset) opcode

#include "emu.h"
#include "cpu/avr8/avr8.h"
#include "sound/dac.h"
#include "sound/volt_reg.h"
#include "video/hd44780.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"

#define MASTER_CLOCK    16000000
#define LOG_PORTS 0

//Port A bits:
//Bit 0 unused
//Bit 1 unused
#define A_AXIS_DIR (1 << 2)
#define A_AXIS_STEP (1 << 3)
#define A_AXIS_EN (1 << 4)
#define A_AXIS_POT (1 << 5)
#define B_AXIS_DIR (1 << 6)
#define B_AXIS_STEP (1 << 7)

//Port B bits:
#define SD_CS (1 << 0)
#define SCK_1280 (1 << 1)
#define MOSI_1280 (1 << 2)
#define MISO_1280 (1 << 3)
#define EX2_PWR_CHECK (1 << 4)
#define EX2_HEAT (1 << 5)
#define EX2_FAN (1 << 6)
#define BLINK (1 << 7)

//Port C bits:
#define EX2_1280 (1 << 0)
#define EX1_1280 (1 << 1)
#define LCD_CLK (1 << 2)
#define LCD_DATA (1 << 3)
#define LCD_STROBE (1 << 4)
#define RLED (1 << 5)
#define GLED (1 << 6)
#define DETECT (1 << 7)

//Port D bits:
#define PORTD_SCL (1 << 0)
#define PORTD_SDA (1 << 1)
#define EX_RX_1280 (1 << 2)
#define EX_TX_1280 (1 << 3)
//Bit 4 unused
//Bit 5 unused
//Bit 6 unused
//Bit 7 unused

//Port E bits:
#define RX_1280 (1 << 0)
#define TX_1280 (1 << 1)
#define THERMO_SCK (1 << 2)
#define THERMO_CS1 (1 << 3)
#define THERMO_CS2 (1 << 4)
#define THERMO_DO (1 << 5)
//Bit 6 unused
//Bit 7 unused

//Port F bits:
#define X_AXIS_DIR (1 << 0)
#define X_AXIS_STEP (1 << 1)
#define X_AXIS_EN (1 << 2)
#define X_AXIS_POT (1 << 3)
#define Y_AXIS_DIR (1 << 4)
#define Y_AXIS_STEP (1 << 5)
#define Y_AXIS_EN (1 << 6)
#define Y_AXIS_POT (1 << 7)

//Port G bits:
#define EX4_1280 (1 << 0)
#define EX3_1280 (1 << 1)
#define B_AXIS_EN (1 << 2)
//Bit 3 unused
#define CUTOFF_SR_CHECK (1 << 4)
#define BUZZ (1 << 5)
//Bit 6 unused
//Bit 7 unused

//Port H bits:
#define CUTOFF_TEST (1 << 0)
#define CUTOFF_RESET (1 << 1)
#define EX1_PWR_CHECK (1 << 2)
#define EX1_HEAT (1 << 3)
#define EX1_FAN (1 << 4)
#define SD_WP (1 << 5)
#define SD_CD (1 << 6)
//Bit 7 unused

//Port J bits:
#define BUTTON_CENTER (1 << 0)
#define BUTTON_RIGHT (1 << 1)
#define BUTTON_LEFT (1 << 2)
#define BUTTON_DOWN (1 << 3)
#define BUTTON_UP (1 << 4)
#define POTS_SCL (1 << 5)
#define B_AXIS_POT (1 << 6)
//Bit 7 unused

//Port K bits:
#define Z_AXIS_DIR (1 << 0)
#define Z_AXIS_STEP (1 << 1)
#define Z_AXIS_EN (1 << 2)
#define Z_AXIS_POT (1 << 3)
#define EX7_1280 (1 << 4)
#define EX6_1280 (1 << 5)
#define EX5_1280 (1 << 6)
#define HBP_THERM (1 << 7)

//Port L bits:
#define X_MIN (1 << 0)
#define X_MAX (1 << 1)
#define Y_MIN (1 << 2)
#define Y_MAX (1 << 3)
#define HBP (1 << 4)
#define EXTRA_FET (1 << 5)
#define Z_MIN (1 << 6)
#define Z_MAX (1 << 7)

/****************************************************\
* I/O devices                                        *
\****************************************************/

class replicator_state : public driver_device
{
public:
	replicator_state(const machine_config &mconfig, device_type type, const char *tag) :
		driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_lcdc(*this, "hd44780"),
		m_dac(*this, "dac")
	{
	}

	void replicator(machine_config &config);

	void init_replicator();

private:
	virtual void machine_start() override;

	uint8_t m_port_a;
	uint8_t m_port_b;
	uint8_t m_port_c;
	uint8_t m_port_d;
	uint8_t m_port_e;
	uint8_t m_port_f;
	uint8_t m_port_g;
	uint8_t m_port_h;
	uint8_t m_port_j;
	uint8_t m_port_k;
	uint8_t m_port_l;

	uint8_t shift_register_value;

	required_device<avr8_device> m_maincpu;
	required_device<hd44780_device> m_lcdc;
	required_device<dac_bit_interface> m_dac;

	DECLARE_READ8_MEMBER(port_r);
	DECLARE_WRITE8_MEMBER(port_w);
	virtual void machine_reset() override;
	void replicator_palette(palette_device &palette) const;
	void replicator_data_map(address_map &map);
	void replicator_io_map(address_map &map);
	void replicator_prg_map(address_map &map);
};

void replicator_state::machine_start()
{
}

READ8_MEMBER(replicator_state::port_r)
{
	switch( offset )
	{
		case AVR8_IO_PORTA:
		{
#if LOG_PORTS
		printf("[%08X] Port A READ (A-axis signals + B-axis STEP&DIR)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTB:
		{
#if LOG_PORTS
		printf("[%08X] Port B READ (SD-CS; 1280-MISO/MOSI/SCK; EX2-FAN/HEAT/PWR-CHECK; BLINK)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTC:
		{
#if LOG_PORTS
		printf("[%08X] Port C READ (1280-EX1/EX2; LCD-signals; R&G-LED; DETECT)\n", m_maincpu->m_shifted_pc);
#endif
		return DETECT; //indicated that the Interface board is present.
		}
		case AVR8_IO_PORTD:
		{
#if LOG_PORTS
		printf("[%08X] Port D READ (SDA/SCL; 1280-EX-TX/RX)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTE:
		{
#if LOG_PORTS
		printf("[%08X] Port E READ (1280-TX/RX; THERMO-signals)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTF:
		{
#if LOG_PORTS
		printf("[%08X] Port F READ (X-axis & Y-axis signals)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTG:
		{
#if LOG_PORTS
		printf("[%08X] Port G READ (BUZZ; Cutoff-sr-check; B-axis EN; 1280-EX3/EX4)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTH:
		{
#if LOG_PORTS
		printf("[%08X] Port H READ (cuttoff-text/reset; EX1-FAN/HEAT/PWR-CHECK; SD-CD/SD-WP)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTJ:
		{
#if LOG_PORTS
		printf("[%08X] Port J READ (Interface buttons; POTS-SCL; B-axis-POT)\n", m_maincpu->m_shifted_pc);
#endif
		return ioport("keypad")->read();
		}
		case AVR8_IO_PORTK:
		{
#if LOG_PORTS
		printf("[%08X] Port K READ (Z-axis signals; HBP-THERM; 1280-EX5/6/7)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
		case AVR8_IO_PORTL:
		{
#if LOG_PORTS
		printf("[%08X] Port L READ (HBP; EXTRA-FET; X-MIN/MAX; Y-MIN/MAX; Z-MIN/MAX)\n", m_maincpu->m_shifted_pc);
#endif
		return 0x00;
		}
	}
	return 0;
}

WRITE8_MEMBER(replicator_state::port_w)
{
	switch( offset )
	{
		case AVR8_IO_PORTA:
		{
			if (data == m_port_a) break;
#if LOG_PORTS
			uint8_t old_port_a = m_port_a;
			uint8_t changed = data ^ old_port_a;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & A_AXIS_DIR) printf("[A] A_AXIS_DIR: %s\n", data & A_AXIS_DIR ? "HIGH" : "LOW");
			if(changed & A_AXIS_STEP) printf("[A] A_AXIS_STEP: %s\n", data & A_AXIS_STEP ? "HIGH" : "LOW");
			if(changed & A_AXIS_EN) printf("[A] A_AXIS_EN: %s\n", data & A_AXIS_EN ? "HIGH" : "LOW");
			if(changed & A_AXIS_POT) printf("[A] A_AXIS_POT: %s\n", data & A_AXIS_POT ? "HIGH" : "LOW");
			if(changed & B_AXIS_DIR) printf("[A] B_AXIS_DIR: %s\n", data & B_AXIS_DIR ? "HIGH" : "LOW");
			if(changed & B_AXIS_STEP) printf("[A] B_AXIS_STEP: %s\n", data & B_AXIS_STEP ? "HIGH" : "LOW");
#endif
			m_port_a = data;
			break;
		}
		case AVR8_IO_PORTB:
		{
			if (data == m_port_b) break;
#if LOG_PORTS
			uint8_t old_port_b = m_port_b;
			uint8_t changed = data ^ old_port_b;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & SD_CS) printf("[B] SD Card Chip Select: %s\n", data & SD_CS ? "HIGH" : "LOW");
			if(changed & SCK_1280) printf("[B] 1280-SCK: %s\n", data & SCK_1280 ? "HIGH" : "LOW");
			if(changed & MOSI_1280) printf("[B] 1280-MOSI: %s\n", data & MOSI_1280 ? "HIGH" : "LOW");
			if(changed & MISO_1280) printf("[B] 1280-MISO: %s\n", data & MISO_1280 ? "HIGH" : "LOW");
			if(changed & EX2_PWR_CHECK) printf("[B] EX2-PWR-CHECK: %s\n", data & EX2_PWR_CHECK ? "HIGH" : "LOW");
			if(changed & EX2_HEAT) printf("[B] EX2_HEAT: %s\n", data & EX2_HEAT ? "HIGH" : "LOW");
			if(changed & EX2_FAN) printf("[B] EX2_FAN: %s\n", data & EX2_FAN ? "HIGH" : "LOW");
			if(changed & BLINK) printf("[B] BLINK: %s\n", data & BLINK ? "HIGH" : "LOW");
#endif
			m_port_b = data;
			break;
		}
		case AVR8_IO_PORTC:
		{
			if (data == m_port_c) break;

			uint8_t old_port_c = m_port_c;
			uint8_t changed = data ^ old_port_c;
#if LOG_PORTS
			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & EX2_1280) printf("[C] EX2_1280: %s\n", data & EX2_1280 ? "HIGH" : "LOW");
			if(changed & EX1_1280) printf("[C] EX1_1280: %s\n", data & EX1_1280 ? "HIGH" : "LOW");
			if(changed & LCD_CLK) printf("[C] LCD_CLK: %s\n", data & LCD_CLK ? "HIGH" : "LOW");
			if(changed & LCD_DATA) printf("[C] LCD_DATA: %s\n", data & LCD_DATA ? "HIGH" : "LOW");
			if(changed & LCD_STROBE) printf("[C] LCD_STROBE: %s\n", data & LCD_STROBE ? "HIGH" : "LOW");
			if(changed & RLED) printf("[C] RLED: %s\n", data & RLED ? "HIGH" : "LOW");
			if(changed & GLED) printf("[C] GLED: %s\n", data & GLED ? "HIGH" : "LOW");
			if(changed & DETECT) printf("[C] DETECT: %s\n", data & DETECT ? "HIGH" : "LOW");
#endif
			if (changed & LCD_CLK){
				/* The LCD is interfaced by an 8-bit shift register (74HC4094). */
				if (data & LCD_CLK){//CLK positive edge
					shift_register_value = (shift_register_value << 1) | ((data & LCD_DATA) >> 3);
					//printf("[%08X] ", m_maincpu->m_shifted_pc);
					//printf("[C] LCD CLK positive edge. shift_register=0x%02X\n", shift_register_value);
				}
			}

			if(changed & LCD_STROBE){
				if (data & LCD_STROBE){ //STROBE positive edge
					bool RS = (shift_register_value >> 1) & 1;
					bool RW = (shift_register_value >> 2) & 1;
					bool enable = (shift_register_value >> 3) & 1;
					uint8_t lcd_data = shift_register_value & 0xF0;

					if (enable && RW==0){
						if (RS==0){
							m_lcdc->control_write(lcd_data);
						} else {
							m_lcdc->data_write(lcd_data);
						}
					}
				}
			}
			m_port_c = data;

			break;
		}
		case AVR8_IO_PORTD:
		{
			if (data == m_port_d) break;
#if LOG_PORTS
			uint8_t old_port_d = m_port_d;
			uint8_t changed = data ^ old_port_d;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & PORTD_SCL) printf("[D] PORTD_SCL: %s\n", data & PORTD_SCL ? "HIGH" : "LOW");
			if(changed & PORTD_SDA) printf("[D] PORTD_SDA: %s\n", data & PORTD_SDA ? "HIGH" : "LOW");
			if(changed & EX_RX_1280) printf("[D] EX_RX_1280: %s\n", data & EX_RX_1280 ? "HIGH" : "LOW");
			if(changed & EX_TX_1280) printf("[D] EX_TX_1280: %s\n", data & EX_TX_1280 ? "HIGH" : "LOW");
#endif
			m_port_d = data;
			break;
		}
		case AVR8_IO_PORTE:
		{
			if (data == m_port_e) break;
#if LOG_PORTS
			uint8_t old_port_e = m_port_e;
			uint8_t changed = data ^ old_port_e;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & RX_1280) printf("[E] 1280-RX: %s\n", data & RX_1280 ? "HIGH" : "LOW");
			if(changed & TX_1280) printf("[E] 1280-TX: %s\n", data & TX_1280 ? "HIGH" : "LOW");
			if(changed & THERMO_SCK) printf("[E] THERMO-SCK: %s\n", data & THERMO_SCK ? "HIGH" : "LOW");
			if(changed & THERMO_CS1) printf("[E] THERMO-CS1: %s\n", data & THERMO_CS1 ? "HIGH" : "LOW");
			if(changed & THERMO_CS2) printf("[E] THERMO-CS2: %s\n", data & THERMO_CS2 ? "HIGH" : "LOW");
			if(changed & THERMO_DO) printf("[E] THERMO-DO: %s\n", data & THERMO_DO ? "HIGH" : "LOW");
#endif
			m_port_e = data;
			break;
		}
		case AVR8_IO_PORTF:
		{
			if (data == m_port_f) break;
#if LOG_PORTS
			uint8_t old_port_f = m_port_f;
			uint8_t changed = data ^ old_port_f;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & X_AXIS_DIR) printf("[F] X_AXIS_DIR: %s\n", data & X_AXIS_DIR ? "HIGH" : "LOW");
			if(changed & X_AXIS_STEP) printf("[F] X_AXIS_STEP: %s\n", data & X_AXIS_STEP ? "HIGH" : "LOW");
			if(changed & X_AXIS_EN) printf("[F] X_AXIS_EN: %s\n", data & X_AXIS_EN ? "HIGH" : "LOW");
			if(changed & X_AXIS_POT) printf("[F] X_AXIS_POT: %s\n", data & X_AXIS_POT ? "HIGH" : "LOW");
			if(changed & Y_AXIS_DIR) printf("[F] Y_AXIS_DIR: %s\n", data & Y_AXIS_DIR ? "HIGH" : "LOW");
			if(changed & Y_AXIS_STEP) printf("[F] Y_AXIS_STEP: %s\n", data & Y_AXIS_STEP ? "HIGH" : "LOW");
			if(changed & Y_AXIS_EN) printf("[F] Y_AXIS_EN: %s\n", data & Y_AXIS_EN ? "HIGH" : "LOW");
			if(changed & Y_AXIS_POT) printf("[F] Y_AXIS_POT: %s\n", data & Y_AXIS_POT ? "HIGH" : "LOW");
#endif
			m_port_f = data;
			break;
		}
		case AVR8_IO_PORTG:
		{
			if (data == m_port_g) break;

			uint8_t old_port_g = m_port_g;
			uint8_t changed = data ^ old_port_g;

#if LOG_PORTS
			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & EX4_1280) printf("[G] EX4_1280: %s\n", data & EX4_1280 ? "HIGH" : "LOW");
			if(changed & EX3_1280) printf("[G] EX3_1280: %s\n", data & EX3_1280 ? "HIGH" : "LOW");
			if(changed & B_AXIS_EN) printf("[G] B_AXIS_EN: %s\n", data & B_AXIS_EN ? "HIGH" : "LOW");
			if(changed & CUTOFF_SR_CHECK) printf("[G] CUTOFF_SR_CHECK: %s\n", data & CUTOFF_SR_CHECK ? "HIGH" : "LOW");
			if(changed & BUZZ) printf("[G] BUZZ: %s\n", data & BUZZ ? "HIGH" : "LOW");
#endif

			if (changed & BUZZ)
			{
				m_dac->write(BIT(data, 5));
			}

			m_port_g = data;
			break;
		}
		case AVR8_IO_PORTH:
		{
			if (data == m_port_h) break;
#if LOG_PORTS
			uint8_t old_port_h = m_port_h;
			uint8_t changed = data ^ old_port_h;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & CUTOFF_TEST) printf("[H] CUTOFF_TEST: %s\n", data & CUTOFF_TEST ? "HIGH" : "LOW");
			if(changed & CUTOFF_RESET) printf("[H] CUTOFF_RESET: %s\n", data & CUTOFF_RESET ? "HIGH" : "LOW");
			if(changed & EX1_PWR_CHECK) printf("[H] EX1_PWR_CHECK: %s\n", data & EX1_PWR_CHECK ? "HIGH" : "LOW");
			if(changed & EX1_HEAT) printf("[H] EX1_HEAT: %s\n", data & EX1_HEAT ? "HIGH" : "LOW");
			if(changed & EX1_FAN) printf("[H] EX1_FAN: %s\n", data & EX1_FAN ? "HIGH" : "LOW");
			if(changed & SD_WP) printf("[H] SD_WP: %s\n", data & SD_WP ? "HIGH" : "LOW");
			if(changed & SD_CD) printf("[H] SD_CD: %s\n", data & SD_CD ? "HIGH" : "LOW");
#endif
			m_port_h = data;
			break;
		}
		case AVR8_IO_PORTJ:
		{
			if (data == m_port_j) break;
#if LOG_PORTS
			uint8_t old_port_j = m_port_j;
			uint8_t changed = data ^ old_port_j;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & BUTTON_CENTER) printf("[J] BUTTON_CENTER: %s\n", data & BUTTON_CENTER ? "HIGH" : "LOW");
			if(changed & BUTTON_RIGHT) printf("[J] BUTTON_RIGHT: %s\n", data & BUTTON_RIGHT ? "HIGH" : "LOW");
			if(changed & BUTTON_LEFT) printf("[J] BUTTON_LEFT: %s\n", data & BUTTON_LEFT ? "HIGH" : "LOW");
			if(changed & BUTTON_DOWN) printf("[J] BUTTON_DOWN: %s\n", data & BUTTON_DOWN ? "HIGH" : "LOW");
			if(changed & BUTTON_UP) printf("[J] BUTTON_UP: %s\n", data & BUTTON_UP ? "HIGH" : "LOW");
			if(changed & POTS_SCL) printf("[J] POTS_SCL: %s\n", data & POTS_SCL ? "HIGH" : "LOW");
			if(changed & B_AXIS_POT) printf("[J] B_AXIS_POT: %s\n", data & B_AXIS_POT ? "HIGH" : "LOW");
#endif
			m_port_j = data;
			break;
		}
		case AVR8_IO_PORTK:
		{
			if (data == m_port_k) break;
#if LOG_PORTS
			uint8_t old_port_k = m_port_k;
			uint8_t changed = data ^ old_port_k;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & Z_AXIS_DIR) printf("[K] Z_AXIS_DIR: %s\n", data & Z_AXIS_DIR ? "HIGH" : "LOW");
			if(changed & Z_AXIS_STEP) printf("[K] Z_AXIS_STEP: %s\n", data & Z_AXIS_STEP ? "HIGH" : "LOW");
			if(changed & Z_AXIS_EN) printf("[K] Z_AXIS_EN: %s\n", data & Z_AXIS_EN ? "HIGH" : "LOW");
			if(changed & Z_AXIS_POT) printf("[K] Z_AXIS_POT: %s\n", data & Z_AXIS_POT ? "HIGH" : "LOW");
			if(changed & EX7_1280) printf("[K] EX7_1280: %s\n", data & EX7_1280 ? "HIGH" : "LOW");
			if(changed & EX6_1280) printf("[K] EX6_1280: %s\n", data & EX6_1280 ? "HIGH" : "LOW");
			if(changed & EX5_1280) printf("[K] EX5_1280: %s\n", data & EX5_1280 ? "HIGH" : "LOW");
			if(changed & HBP_THERM) printf("[K] HBP_THERM: %s\n", data & HBP_THERM ? "HIGH" : "LOW");
#endif
			m_port_k = data;
			break;
		}
		case AVR8_IO_PORTL:
		{
			if (data == m_port_l) break;
#if LOG_PORTS
			uint8_t old_port_l = m_port_l;
			uint8_t changed = data ^ old_port_l;

			printf("[%08X] ", m_maincpu->m_shifted_pc);
			if(changed & X_MIN) printf("[L] X_MIN: %s\n", data & X_MIN ? "HIGH" : "LOW");
			if(changed & X_MAX) printf("[L] X_MAX: %s\n", data & X_MAX ? "HIGH" : "LOW");
			if(changed & Y_MIN) printf("[L] Y_MIN: %s\n", data & Y_MIN ? "HIGH" : "LOW");
			if(changed & Y_MAX) printf("[L] Y_MAX: %s\n", data & Y_MAX ? "HIGH" : "LOW");
			if(changed & HBP) printf("[L] HBP: %s\n", data & HBP ? "HIGH" : "LOW");
			if(changed & EXTRA_FET) printf("[L] EXTRA_FET: %s\n", data & EXTRA_FET ? "HIGH" : "LOW");
			if(changed & Z_MIN) printf("[L] Z_MIN: %s\n", data & Z_MIN ? "HIGH" : "LOW");
			if(changed & Z_MAX) printf("[L] Z_MAX: %s\n", data & Z_MAX ? "HIGH" : "LOW");
#endif
			m_port_l = data;
			break;
		}
	}
}

/****************************************************\
* Address maps                                       *
\****************************************************/

void replicator_state::replicator_prg_map(address_map &map)
{
	map(0x0000, 0x1FFFF).rom();
}

void replicator_state::replicator_data_map(address_map &map)
{
	map(0x0200, 0x21FF).ram();  /* ATMEGA1280 Internal SRAM */
}

void replicator_state::replicator_io_map(address_map &map)
{
	map(AVR8_IO_PORTA, AVR8_IO_PORTL).rw(FUNC(replicator_state::port_r), FUNC(replicator_state::port_w));
}

/****************************************************\
* Input ports                                        *
\****************************************************/

static INPUT_PORTS_START( replicator )
	PORT_START("keypad")
	PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CENTER") PORT_CODE(KEYCODE_M)
	PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_W)
INPUT_PORTS_END

/****************************************************\
* Machine definition                                 *
\****************************************************/

void replicator_state::init_replicator()
{
}

void replicator_state::machine_reset()
{
	shift_register_value = 0;
	m_port_a = 0;
	m_port_b = 0;
	m_port_c = 0;
	m_port_d = 0;
	m_port_e = 0;
	m_port_f = 0;
	m_port_g = 0;
	m_port_h = 0;
	m_port_j = 0;
	m_port_k = 0;
	m_port_l = 0;
}

void replicator_state::replicator_palette(palette_device &palette) const
{
	// These colors were picked with the color picker in Inkscape, based on a photo of the LCD used in the Replicator 1 3d printer:
	palette.set_pen_color(0, rgb_t(0xca, 0xe7, 0xeb));
	palette.set_pen_color(1, rgb_t(0x78, 0xab, 0xa8));
}

static const gfx_layout hd44780_charlayout =
{
	5, 8,                   /* 5 x 8 characters */
	256,                    /* 256 characters */
	1,                      /* 1 bits per pixel */
	{ 0 },                  /* no bitplanes */
	{ 3, 4, 5, 6, 7},
	{ 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8},
	8*8                     /* 8 bytes */
};

static GFXDECODE_START( gfx_replicator )
	GFXDECODE_ENTRY( "hd44780:cgrom", 0x0000, hd44780_charlayout, 0, 1 )
GFXDECODE_END

void replicator_state::replicator(machine_config &config)
{
	ATMEGA1280(config, m_maincpu, MASTER_CLOCK);
	m_maincpu->set_addrmap(AS_PROGRAM, &replicator_state::replicator_prg_map);
	m_maincpu->set_addrmap(AS_DATA, &replicator_state::replicator_data_map);
	m_maincpu->set_addrmap(AS_IO, &replicator_state::replicator_io_map);

	m_maincpu->set_eeprom_tag("eeprom");
	m_maincpu->set_low_fuses(0xff);
	m_maincpu->set_high_fuses(0xda);
	m_maincpu->set_extended_fuses(0xf4);
	m_maincpu->set_lock_bits(0x0f);

	/*TODO: Add an ATMEGA8U2 for USB-Serial communications */

	/* video hardware */
	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
	screen.set_refresh_hz(50);
	screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
	screen.set_screen_update("hd44780", FUNC(hd44780_device::screen_update));
	screen.set_size(120, 18*2); //4x20 chars
	screen.set_visarea(0, 120-1, 0, 18*2-1);
	screen.set_palette("palette");

	PALETTE(config, "palette", FUNC(replicator_state::replicator_palette), 2);
	GFXDECODE(config, "gfxdecode", "palette", gfx_replicator);

	HD44780(config, "hd44780", 0).set_lcd_size(4, 20);

	/* sound hardware */
	/* A piezo is connected to the PORT G bit 5 (OC0B pin driven by Timer/Counter #4) */
	SPEAKER(config, "speaker").front_center();
	DAC_1BIT(config, m_dac, 0).add_route(0, "speaker", 0.5);
	voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
	vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
}

ROM_START( replica1 )
	ROM_REGION( 0x20000, "maincpu", 0 )
	ROM_DEFAULT_BIOS("v750")

	/* Version 5.1 release:
	- Initial firmware release
	*/
	ROM_SYSTEM_BIOS( 0, "v51", "V 5.1" )
	ROMX_LOAD("mighty-mb40-v5.1.bin", 0x0000, 0x10b90, CRC(20d65cd1) SHA1(da18c3eb5a29a6bc1eecd92eaae6063fe29d0305), ROM_BIOS(0))

	/* Version 5.2 release:
	- Nozzle Tolerance added to EEPROM
	- Updated onboard menus
	- X,Y calibration tool added
	*/
	ROM_SYSTEM_BIOS( 1, "v52", "V 5.2" )
	ROMX_LOAD("mighty-mb40-v5.2.bin", 0x0000, 0x126c4, CRC(555e47cf) SHA1(9d24a3dbeddce16669bb4d29c3366220ddf15d2a), ROM_BIOS(1))

	/* Version 5.5 release:
	- Acceleration added to motor motion
	- Digipot updates
	*/
	ROM_SYSTEM_BIOS( 2, "v55", "V 5.5" )
	ROMX_LOAD("mighty-mb40-v5.5.bin", 0x0000, 0x1a420, CRC(9327d7e4) SHA1(d734ba2bda12f50ec3ac0035ab11591909d9edde), ROM_BIOS(2))

	/* Version 6.2.0 release:
	- Bug fix release to firmware 6.0
	- Addresses wavy print issue above 1cm
	- Left extruder prints with makerware.
	*/
	ROM_SYSTEM_BIOS( 3, "v620", "V 6.2.0" )
	ROMX_LOAD("mighty_one_v6.2.0.bin", 0x0000, 0x1cf54, CRC(00df6f48) SHA1(db05afc2e1ebc104fb04753634a911187e396556), ROM_BIOS(3))

	/* Version 7.0.0 release:
	- Major upgrade to Stepper Motor Smoothness (via Sailfish team)
	- X3G format introduced
	- Heaters default to leaving 'preheat' on more of the time
	*/
	ROM_SYSTEM_BIOS( 4, "v700", "V 7.0.0" )
	ROMX_LOAD("mighty_one_v7.0.0.bin", 0x0000, 0x1cb52, CRC(aa2a5fcf) SHA1(934e642b0b2d007689249680bad03c9255ae016a), ROM_BIOS(4))

	/* Version 7.2.0 release:
	- Removes support for S3G files
	- X3G is the recognized format
	- Minor bug fixes
	*/
	ROM_SYSTEM_BIOS( 5, "v720", "V 7.2.0" )
	ROMX_LOAD("mighty_one_v7.2.0.bin", 0x0000, 0x1cb80, CRC(5e546706) SHA1(ed4aaf7522d5a5beea7eb69bf2c85d7a89f8f188), ROM_BIOS(5))

	/* Version 7.3.0 release:
	- Pause at Z Height
	- Elapsed time displays during prints
	- Minor bug fixes
	*/
	ROM_SYSTEM_BIOS( 6, "v730", "V 7.3.0" )
	ROMX_LOAD("mighty_one_v7.3.0.bin", 0x0000, 0x1d738, CRC(71811ff5) SHA1(6728ea600ab3ff4b589adca90b0d700d9b70bd18), ROM_BIOS(6))

	/* Version 7.4.0 (bugfix) release:
	- Fixes issues with Z Pause and elapsed print time
	*/
	ROM_SYSTEM_BIOS( 7, "v740", "V 7.4.0" )
	ROMX_LOAD("mighty_one_v7.4.0.bin", 0x0000, 0x1b9e2, CRC(97b05a27) SHA1(76ca2c9c1db2e006e501c3177a8a1aa693dda0f9), ROM_BIOS(7))

	/* Version 7.5.0 (bugfix) release:
	- Fixes issue with Heat Hold
	*/
	ROM_SYSTEM_BIOS( 8, "v750", "V 7.5.0" )
	ROMX_LOAD("mighty_one_v7.5.0.bin", 0x0000, 0x1b9c4, CRC(169d6709) SHA1(62b5aacd1bc46969042aea7a50531ec467a4ff1f), ROM_BIOS(8))

	/* Sailfish firmware image - Metam??quina experimental build v7.5.0 */
	ROM_SYSTEM_BIOS( 9, "v750mm", "V 7.5.0 - Metam??quina" )
	ROMX_LOAD("mighty_one_v7.5.0.mm.bin", 0x0000, 0x1ef9a, CRC(0d36d9e7) SHA1(a53899775b4c4eea87b6903758ebb75f06710a69), ROM_BIOS(9))


	/*Arduino MEGA bootloader */
	ROM_LOAD( "atmegaboot_168_atmega1280.bin", 0x1f000, 0x0f16, CRC(c041f8db) SHA1(d995ebf360a264cccacec65f6dc0c2257a3a9224) )

	/* on-die 4kbyte eeprom */
	ROM_REGION( 0x1000, "eeprom", ROMREGION_ERASEFF )
ROM_END

/*   YEAR  NAME      PARENT  COMPAT  MACHINE     INPUT       CLASS             INIT             COMPANY     FULLNAME */
COMP(2012, replica1, 0,      0,      replicator, replicator, replicator_state, init_replicator, "Makerbot", "Replicator 1 desktop 3d printer", MACHINE_NOT_WORKING)