summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/nokia_3310.cpp
blob: 86cbbd2d2b8cc16e3e15f3754dbd71928b81b5c7 (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
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
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/*
    Driver for Nokia phones based on Texas Instrument MAD2WD1 (ARM7TDMI + DSP)

    Driver based on documentations found here:
        http://nokix.sourceforge.net/help/blacksphere/sub_050main.htm
        http://tudor.rdslink.ro/MADos/

*/

// if anybody has solid information to aid in the emulation of this (or other phones) please contribute.

#include "emu.h"

#include "cpu/arm7/arm7.h"
#include "cpu/arm7/arm7core.h"
#include "machine/intelfsh.h"
#include "video/pcd8544.h"

#include "debugger.h"
#include "emupal.h"
#include "screen.h"


#define LOG_MAD2_REGISTER_ACCESS    (0)
#define LOG_CCONT_REGISTER_ACCESS   (0)


class noki3310_state : public driver_device
{
public:
	noki3310_state(const machine_config &mconfig, device_type type, const char *tag) :
		driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_pcd8544(*this, "pcd8544"),
		m_keypad(*this, "COL.%u", 0),
		m_pwr(*this, "PWR")
	{ }

	void noki3330(machine_config &config);
	void noki3410(machine_config &config);
	void noki7110(machine_config &config);
	void noki6210(machine_config &config);
	void noki3310(machine_config &config);

	DECLARE_INPUT_CHANGED_MEMBER(key_irq);

private:
	virtual void machine_start() override;
	virtual void machine_reset() override;

	PCD8544_SCREEN_UPDATE(pcd8544_screen_update);

	DECLARE_READ8_MEMBER(mad2_io_r);
	DECLARE_WRITE8_MEMBER(mad2_io_w);
	DECLARE_READ8_MEMBER(mad2_dspif_r);
	DECLARE_WRITE8_MEMBER(mad2_dspif_w);
	DECLARE_READ8_MEMBER(mad2_mcuif_r);
	DECLARE_WRITE8_MEMBER(mad2_mcuif_w);

	TIMER_CALLBACK_MEMBER(timer0);
	TIMER_CALLBACK_MEMBER(timer1);
	TIMER_CALLBACK_MEMBER(timer_watchdog);
	TIMER_CALLBACK_MEMBER(timer_fiq8);

	DECLARE_READ16_MEMBER(ram_r)        { return m_ram[offset] & mem_mask; }
	DECLARE_WRITE16_MEMBER(ram_w)       { COMBINE_DATA(&m_ram[offset]); }
	DECLARE_READ16_MEMBER(dsp_ram_r);
	DECLARE_WRITE16_MEMBER(dsp_ram_w);

	void noki3310_map(address_map &map);

	void assert_fiq(int num);
	void assert_irq(int num);
	void ack_fiq(uint16_t mask);
	void ack_irq(uint16_t mask);
	void nokia_ccont_w(uint8_t data);
	uint8_t nokia_ccont_r();

	required_device<cpu_device> m_maincpu;
	required_device<pcd8544_device> m_pcd8544;
	required_ioport_array<5> m_keypad;
	required_ioport m_pwr;

	std::unique_ptr<uint16_t[]>   m_ram;
	std::unique_ptr<uint16_t[]>   m_dsp_ram;

	uint8_t       m_power_on;
	uint16_t      m_fiq_status;
	uint16_t      m_irq_status;
	uint16_t      m_timer1_counter;
	uint16_t      m_timer0_counter;

	emu_timer * m_timer0;
	emu_timer * m_timer1;
	emu_timer * m_timer_watchdog;
	emu_timer * m_timer_fiq8;

	// CCONT
	struct nokia_ccont
	{
		bool    dc;
		uint8_t   cmd;
		uint8_t   watchdog;
		uint8_t   regs[0x10];
	} m_ccont;

	uint8_t       m_mad2_regs[0x100];
};


#if LOG_MAD2_REGISTER_ACCESS
static const char * nokia_mad2_reg_desc(uint8_t offset)
{
	switch(offset)
	{
	case 0x00:  return "[CTSI] DCT3 ASIC version Primary hardware version (r)";
	case 0x01:  return "[CTSI] MCU reset control register (rw)";
	case 0x02:  return "[CTSI] DSP reset control register (rw)";
	case 0x03:  return "[CTSI] ASIC watchdog write register (w)";
	case 0x04:  return "[CTSI] Sleep clock counter (MSB) (r)";
	case 0x05:  return "[CTSI] Sleep clock counter (LSB) (r)";
	case 0x06:  return "[CTSI] ? (sleep) clock destination (LSB) (r)";
	case 0x07:  return "[CTSI] ? (sleep) clock destination (MSB) (r)";
	case 0x08:  return "[CTSI] FIQ lines active (rw)";
	case 0x09:  return "[CTSI] IRQ lines active (rw)";
	case 0x0A:  return "[CTSI] FIQ lines mask (rw)";
	case 0x0B:  return "[CTSI] IRQ lines mask (rw)";
	case 0x0C:  return "[CTSI] Interrupt control register (rw)";
	case 0x0D:  return "[CTSI] Clock control register (rw)";
	case 0x0E:  return "[CTSI] Interrupt trigger register (r)";
	case 0x0F:  return "[CTSI] Programmable timer clock divider (rw)";
	case 0x10:  return "[CTSI] Programmable timer counter (MSB) (r)";
	case 0x11:  return "[CTSI] Programmable timer counter (LSB) (r)";
	case 0x12:  return "[CTSI] Programmable timer destination (MSB) (rw)";
	case 0x13:  return "[CTSI] Programmable timer destination (LSB) (rw)";
	case 0x15:  return "[PUP] PUP control (rw)";
	case 0x16:  return "[PUP] FIQ 8 (timer?) interrupt control (rw)";
	case 0x18:  return "[PUP] MBUS control (rw)";
	case 0x19:  return "[PUP] MBUS status (rw)";
	case 0x1A:  return "[PUP] MBUS RX/TX (rw)";
	case 0x1B:  return "[PUP] Vibrator (w)";
	case 0x1C:  return "[PUP] Buzzer clock divider (w)";
	case 0x1E:  return "[PUP] Buzzer volume (w)";
	case 0x20:  return "[PUP] McuGenIO signal lines (rw)";
	case 0x22:  return "[PUP] ? (?)";
	case 0x24:  return "[PUP] McuGenIO I/O direction (rw)";
	case 0x28:  return "[UIF/KBGPIO] Keyboard ROW signal lines (rw)";
	case 0x29:  return "[UIF/KBGPIO] Keyboard ROW ?? (rw)";
	case 0x2A:  return "[UIF/KBGPIO] Keyboard COL signal lines (rw)";
	case 0x2B:  return "[UIF/KBGPIO] Keyboard COL ?? (rw)";
	case 0x2C:  return "[UIF/GENSIO] CCont write (w)";
	case 0x2D:  return "[UIF/GENSIO] GENSIO start transaction (w)";
	case 0x2E:  return "[UIF/GENSIO] LCD data write (w)";
	case 0x32:  return "[UIF] CTRL I/O 2 (rw)";
	case 0x33:  return "[UIF] CTRL I/O 3 (rw)";
	case 0x36:  return "[SIMI] SIM UART TxD (w)";
	case 0x37:  return "[SIMI] SIM UART RxD (r)";
	case 0x38:  return "[SIMI] SIM UART Interrupt Identification (r)";
	case 0x39:  return "[SIMI] SIM Control (rw)";
	case 0x3A:  return "[SIMI] SIM Clock Control (rw)";
	case 0x3B:  return "[SIMI] SIM UART TxD Low Water Mark (?)";
	case 0x3C:  return "[SIMI] SIM UART RxD queue fill (r)";
	case 0x3D:  return "[SIMI] SIM RxD flags (?)";
	case 0x3E:  return "[SIMI] SIM TxD flags (?)";
	case 0x3F:  return "[SIMI] SIM UART TxD queue fill (r)";
	case 0x68:  return "[UIF/KBGPIO] Keyboard ROW ?? 2 (rw)";
	case 0x69:  return "[UIF/KBGPIO] Keyboard ROW interrupt (rw)";
	case 0x6A:  return "[UIF/KBGPIO] Keyboard COL ?? 2 (rw)";
	case 0x6B:  return "[UIF/KBGPIO] Keyboard COL interrupt mask (rw)";
	case 0x6C:  return "[UIF/GENSIO] CCont read (r)";
	case 0x6D:  return "[UIF/GENSIO] GENSIO status (r)";
	case 0x6E:  return "[UIF/GENSIO] LCD command write (w)";
	case 0x6F:  return "[UIF/GENSIO] GENSIO ?? (3/SELECT1) (?)";
	case 0x70:  return "[UIF] CTRL I/O 0 I/O direction (1) (rw)";
	case 0x71:  return "[UIF] CTRL I/O 1 I/O direction (1) (rw)";
	case 0x72:  return "[UIF] CTRL I/O 2 I/O direction (1) (rw)";
	case 0x73:  return "[UIF] CTRL I/O 3 I/O direction (1) (rw)";
	case 0xA8:  return "[UIF/KBGPIO] Keyboard ROW I/O direction (rw)";
	case 0xA9:  return "[UIF/KBGPIO] Keyboard ROW ?? 3 (rw)";
	case 0xAA:  return "[UIF/KBGPIO] Keyboard COL I/O direction 0=in 1=out (rw)";
	case 0xAB:  return "[UIF/KBGPIO] Keyboard COL ?? 3 (rw)";
	case 0xAD:  return "[UIF/GENSIO] GENSIO ?? (1/SELECT2) (?)";
	case 0xAE:  return "[UIF/GENSIO] GENSIO ?? (2/SELECT2) (?)";
	case 0xAF:  return "[UIF/GENSIO] GENSIO ?? (3/SELECT2) (?)";
	case 0xB0:  return "[UIF] CTRL I/O 0 I/O direction (2) (rw)";
	case 0xB1:  return "[UIF] CTRL I/O 1 I/O direction (2) (rw)";
	case 0xB2:  return "[UIF] CTRL I/O 2 I/O direction (2) (rw)";
	case 0xB3:  return "[UIF] CTRL I/O 3 I/O direction (2) (rw)";
	case 0xED:  return "[UIF/GENSIO] GENSIO ?? (1/SELECT3) (?)";
	case 0xEE:  return "[UIF/GENSIO] GENSIO ?? (2/SELECT3) (?)";
	case 0xEF:  return "[UIF/GENSIO] GENSIO ?? (3/SELECT3) (?)";
	case 0xF0:  return "[UIF] CTRL I/O 0 input (r)";
	case 0xF1:  return "[UIF] CTRL I/O 1 input (r)";
	case 0xF2:  return "[UIF] CTRL I/O 2 input (r)";
	case 0xF3:  return "[UIF] CTRL I/O 3 input (r)";
	default:    return "<Unknown>";
	}
}
#endif

#if LOG_CCONT_REGISTER_ACCESS
static const char * nokia_ccont_reg_desc(uint8_t offset)
{
	switch(offset)
	{
	case 0x0:   return "Control register (w)";
	case 0x1:   return "PWM (charger) (w)";
	case 0x2:   return "A/D read (LSB) (r)";
	case 0x3:   return "A/D read (MSB) (rw)";
	case 0x4:   return "?";
	case 0x5:   return "Watchdog (WDReg) (w)";
	case 0x6:   return "RTC enabled (w)";
	case 0x7:   return "RTC second (rw)";
	case 0x8:   return "RTC minute (r)";
	case 0x9:   return "RTC hour (r)";
	case 0xA:   return "RTC day (rw)";
	case 0xB:   return "RTC alarm minute (rw)";
	case 0xC:   return "RTC alarm hour (rw)";
	case 0xD:   return "RTC calibration value (rw)";
	case 0xE:   return "Interrupt lines (rw)";
	case 0xF:   return "Interrupt mask (rw)";
	default:    return "<Unknown>";
	}
}
#endif

void noki3310_state::machine_start()
{
	m_ram = std::make_unique<uint16_t[]>(0x40000);
	m_dsp_ram = std::make_unique<uint16_t[]>(0x800);      // DSP shared RAM

	// allocate timers
	m_timer0 = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(noki3310_state::timer0), this));
	m_timer1 = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(noki3310_state::timer1), this));
	m_timer_watchdog = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(noki3310_state::timer_watchdog), this));
	m_timer_fiq8 = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(noki3310_state::timer_fiq8), this));
}

void noki3310_state::machine_reset()
{
	// according to the boot rom disassembly here http://www.nokix.pasjagsm.pl/help/blacksphere/sub_100hardware/sub_arm/sub_bootrom.htm
	// flash entry point is at 0x200040, we can probably reassemble the above code, but for now this should be enough.
	m_maincpu->set_state_int(ARM7_R15, 0x200040);

	memset(m_mad2_regs, 0, 0x100);
	m_mad2_regs[0x01] = 0x01;   // power-on flag
	m_mad2_regs[0x0c] = 0x0a;   // disable FIQ and IRQ
	m_mad2_regs[0x03] = 0xff;   // disable MAD2 watchdog
	m_ccont.watchdog  = 0;      // disable CCONT watchdog
	m_ccont.dc  = false;

	m_fiq_status = 0;
	m_irq_status = 0;
	m_timer1_counter = 0;
	m_timer0_counter = 0;

	m_timer0->adjust(attotime::from_hz(33055 / (255 + 1)), 0, attotime::from_hz(33055 / (255 + 1)));    // programmable through port 0x0f
	m_timer1->adjust(attotime::from_hz(1057), 0, attotime::from_hz(1057));
	m_timer_watchdog->adjust(attotime::from_hz(1), 0, attotime::from_hz(1));
	m_timer_fiq8->adjust(attotime::from_hz(1000), 0, attotime::from_hz(1000));

	// simulate power-on input
	if (machine().system().name && (machine().system().name[4] == '8' || machine().system().name[4] == '5'))
		m_power_on = ~0x10;
	else
		m_power_on = ~0x02;
}

void noki3310_state::assert_fiq(int num)
{
	if ((m_mad2_regs[0x0c] & 0x01) == 0)    // check if FIQ is globally enabled
		return;

	if (num < 8)
	{
		int mask = 1 << num;
		if (!(m_mad2_regs[0x0a] & mask))
		{
			m_maincpu->set_input_line(1, ASSERT_LINE);
			m_fiq_status |= mask;
		}
	}
	else if (!(m_mad2_regs[0x16] & 0x04))
	{
		m_fiq_status |= 0x100;
		m_maincpu->set_input_line(1, ASSERT_LINE);
	}
}

void noki3310_state::assert_irq(int num)
{
	if ((m_mad2_regs[0x0c] & 0x04) == 0)    // check if IRQ is globally enabled
		return;

	if (num < 8)
	{
		int mask = 1 << num;
		if (!(m_mad2_regs[0x0b] & mask))
		{
			m_irq_status |= mask;
			m_maincpu->set_input_line(0, ASSERT_LINE);
		}
	}
	else if (!(m_mad2_regs[0x0c] & 0x40))
	{
		m_irq_status |= 0x100;
		m_maincpu->set_input_line(0, ASSERT_LINE);
	}
}

void noki3310_state::ack_fiq(uint16_t mask)
{
	m_fiq_status &= ~mask;

	if (m_fiq_status == 0)
		m_maincpu->set_input_line(1, CLEAR_LINE);
}

void noki3310_state::ack_irq(uint16_t mask)
{
	m_irq_status &= ~mask;

	if (m_irq_status == 0)
		m_maincpu->set_input_line(0, CLEAR_LINE);
}

void noki3310_state::nokia_ccont_w(uint8_t data)
{
	if (m_ccont.dc == false)
	{
#if LOG_CCONT_REGISTER_ACCESS
		logerror("CCONT command %s %x\n", data & 4 ? "R" : "W", data>>3);
#endif
		m_ccont.cmd  = data;
	}
	else
	{
		uint8_t addr = (m_ccont.cmd >> 3) & 0x0f;

		switch(addr)
		{
			case 0x0:   // ADC
			{
				uint16_t ad_id = (data >> 4) & 0x07;
				uint16_t ad_value = 0;
				switch(ad_id)
				{
					case 0:     ad_value = 0x000;   break;  // Accessory Detect
					case 1:     ad_value = 0x3ff;   break;  // Received signal strength
					case 2:     ad_value = 0x3ff;   break;  // Battery voltage
					case 3:     ad_value = 0x280;   break;  // Battery type
					case 4:     ad_value = 0x000;   break;  // Battery temperature
					case 5:     ad_value = 0x000;   break;  // Charger voltage
					case 6:     ad_value = 0x000;   break;  // VCX0 (Voltage controlled oscilator) temperature
					case 7:     ad_value = 0x000;   break;  // Charging current
				}

				m_ccont.regs[addr] = data;
				m_ccont.regs[2] = ad_value & 0xff;
				m_ccont.regs[3] = ((ad_value >> 8) & 0x03);
				break;
			}
			case 0x5:   // CCONT watchdog
				if (data == 0x20)
					m_ccont.regs[addr] = data;
				else if (data == 0x31)
					m_ccont.watchdog = m_ccont.regs[addr];
				else if (data == 0x3f)
					m_ccont.watchdog = 0;
				else if (data == 0)
					printf("CCONT power-off\n");
				break;

			default:
				m_ccont.regs[addr] = data;
				break;
		}

#if LOG_CCONT_REGISTER_ACCESS
		logerror("CCONT W %02x = %02x %s\n", addr, data, nokia_ccont_reg_desc(addr));
#endif
	}

	m_ccont.dc = !m_ccont.dc;
}

uint8_t noki3310_state::nokia_ccont_r()
{
	uint8_t addr = (m_ccont.cmd >> 3) & 0x0f;
	uint8_t data = m_ccont.regs[addr];

	system_time systime;
	machine().current_datetime(systime);

	switch(addr)
	{
		case 0x3:       data = 0xb0 | (m_ccont.regs[addr] & 0x03);  break;
		case 0x7:       data = systime.local_time.second;           break;
		case 0x8:       data = systime.local_time.minute;           break;
		case 0x9:       data = systime.local_time.hour;             break;
		case 0xa:       data = systime.local_time.mday;             break;
		case 0xe:       data |= 0x01;                               break;
	}

	m_ccont.dc = !m_ccont.dc;

#if LOG_CCONT_REGISTER_ACCESS
	logerror("CCONT R %02x = %02x %s\n", addr, data, nokia_ccont_reg_desc(addr));
#endif
	return data;
}

PCD8544_SCREEN_UPDATE(noki3310_state::pcd8544_screen_update)
{
	for (int r = 0; r < 6; r++)
		for (int x = 0; x < 84; x++)
		{
			uint8_t gfx = vram[r*84 + x];

			for (int y = 0; y < 8; y++)
			{
				int p = BIT(gfx, y);
				bitmap.pix16(r*8 + y, x) = p ^ inv;
			}
		}
}

TIMER_CALLBACK_MEMBER(noki3310_state::timer0)
{
	m_timer0_counter++;

	if (m_timer0_counter == ((m_mad2_regs[0x12] << 8) | m_mad2_regs[0x13]))
		assert_fiq(4);
}

TIMER_CALLBACK_MEMBER(noki3310_state::timer1)
{
	m_timer1_counter++;

	if (m_timer1_counter == 0x8000)
	{
		assert_fiq(5);
		m_timer1_counter = 0;
	}
}

TIMER_CALLBACK_MEMBER(noki3310_state::timer_fiq8)
{
	if (m_mad2_regs[0x16] & 0x01)
		assert_fiq(8);
}

TIMER_CALLBACK_MEMBER(noki3310_state::timer_watchdog)
{
	// CCONT watchdog
	if (m_ccont.watchdog != 0)
	{
		m_ccont.watchdog--;

		if (m_ccont.watchdog == 0)
		{
			m_maincpu->reset();
			machine_reset();
		}
	}

	// MAD2 watchdog
	if (m_mad2_regs[0x03] != 0xff)
	{
		m_mad2_regs[0x03]--;
		if (m_mad2_regs[0x03] == 0)
		{
			m_maincpu->reset();
			machine_reset();
			m_mad2_regs[0x01] |= 0x02;  // Last reset was by watchdog
		}
	}
}

READ16_MEMBER(noki3310_state::dsp_ram_r)
{
	// HACK: avoid hangs when ARM try to communicate with the DSP
	if (offset <= 0x004 >> 1)   return 0x01;
	if (offset == 0x0e0 >> 1)   return 0x00;
	if (offset == 0x0fe >> 1)   return 0x01;
	if (offset == 0x100 >> 1)   return 0x01;

	return m_dsp_ram[offset & 0x7ff];
}

WRITE16_MEMBER(noki3310_state::dsp_ram_w)
{
	COMBINE_DATA(&m_dsp_ram[offset & 0x7ff]);
}

READ8_MEMBER(noki3310_state::mad2_io_r)
{
	uint8_t data = m_mad2_regs[offset];

	switch(offset)
	{
		case 0x00:
			data = 0x40;    // ASIC version
			break;
		case 0x04:
			data = m_timer1_counter >> 8;
			break;
		case 0x05:
			data = m_timer1_counter;
			break;
		case 0x08:
			data = m_fiq_status & 0xff;
			break;
		case 0x09:
			data = m_irq_status & 0xff;
			break;
		case 0x0c:
			data = (data & (~0x20)) | ((m_irq_status >> 3) & 0x20);
			break;
		case 0x10:
			data = m_timer0_counter >> 8;
			break;
		case 0x11:
			data = m_timer0_counter;
			break;
		case 0x16:
			data = (data & (~0x02)) | ((m_fiq_status >> 7) & 0x02);
			break;
		case 0x18:
			data &= 0x7f;
			break;
		case 0x2a:
			data = 0xff;
			for(int i=0; i<5; i++)
				if (!(m_mad2_regs[0x28] & (1 <<i)))
					data &= m_keypad[i]->read();

			data &= m_pwr->read();

			if (m_power_on)
			{
				data &= m_power_on;
				m_power_on = 0;
			}
			break;
		case 0x6c:
			data = nokia_ccont_r();
			break;
		case 0x6d:
			data = 0x07;    // GENSIO ready
			break;
	}

#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 R %02x = %02x %s\n", offset, data, nokia_mad2_reg_desc(offset));
#endif
	return data;
}

WRITE8_MEMBER(noki3310_state::mad2_io_w)
{
	m_mad2_regs[offset] = data;

	switch(offset)
	{
		case 0x02:
			//printf("DSP %s\n", data & 1 ? "RUN" : "HOLD");
			//if (data & 0x01)  machine().debug_break();
			break;
		case 0x08:
			ack_fiq(data);
			break;
		case 0x09:
			ack_irq(data);
			break;
		case 0x0c:
			ack_irq((data << 3) & 0x100);
			break;
		case 0x0f:
			m_timer0->adjust(attotime::from_hz(33055 / (data + 1)), 0, attotime::from_hz(33055 / (data + 1)));
			break;
		case 0x16:
			ack_fiq((data << 7) & 0x100);
			break;
		case 0x2c:
			nokia_ccont_w(data);
			break;
		case 0x2e:
		case 0x6e:
			m_pcd8544->dc_w(offset & 0x40 ? CLEAR_LINE : ASSERT_LINE);
			for (int i=7; i>=0; i--)
			{
				m_pcd8544->sclk_w(CLEAR_LINE);
				m_pcd8544->sdin_w(BIT(data, i));
				m_pcd8544->sclk_w(ASSERT_LINE);
			}
			m_pcd8544->dc_w(ASSERT_LINE);
			break;
	}

#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 W %02x = %02x %s\n", offset, data, nokia_mad2_reg_desc(offset));
#endif
}

READ8_MEMBER(noki3310_state::mad2_dspif_r)
{
#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 R %02x DSPIF\n", offset);
#endif
	return 0;
}

WRITE8_MEMBER(noki3310_state::mad2_dspif_w)
{
#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 W %02x = %02x DSPIF\n", offset, data);
#endif
}

READ8_MEMBER(noki3310_state::mad2_mcuif_r)
{
#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 R %02x MCUIF\n", offset);
#endif
	return 0;
}

WRITE8_MEMBER(noki3310_state::mad2_mcuif_w)
{
#if LOG_MAD2_REGISTER_ACCESS
	logerror("MAD2 W %02x = %02x MCUIF\n", offset, data);
#endif
}


void noki3310_state::noki3310_map(address_map &map)
{
	map.global_mask(0x00ffffff);
	map(0x00000000, 0x0000ffff).mirror(0x80000).rw(FUNC(noki3310_state::ram_r), FUNC(noki3310_state::ram_w));                // boot ROM / RAM
	map(0x00010000, 0x00010fff).mirror(0x8f000).rw(FUNC(noki3310_state::dsp_ram_r), FUNC(noki3310_state::dsp_ram_w));        // DSP shared memory
	map(0x00020000, 0x000200ff).mirror(0x8ff00).rw(FUNC(noki3310_state::mad2_io_r), FUNC(noki3310_state::mad2_io_w));         // IO (Primary I/O range, configures peripherals)
	map(0x00030000, 0x00030003).mirror(0x8fffc).rw(FUNC(noki3310_state::mad2_dspif_r), FUNC(noki3310_state::mad2_dspif_w));   // DSPIF (API control register)
	map(0x00040000, 0x00040003).mirror(0x8fffc).rw(FUNC(noki3310_state::mad2_mcuif_r), FUNC(noki3310_state::mad2_mcuif_w));   // MCUIF (Secondary I/O range, configures memory ranges)
	map(0x00100000, 0x0017ffff).rw(FUNC(noki3310_state::ram_r), FUNC(noki3310_state::ram_w));                                   // RAMSelX
	map(0x00200000, 0x005fffff).rw("flash", FUNC(intelfsh16_device::read), FUNC(intelfsh16_device::write));     // ROM1SelX
	map(0x00600000, 0x009fffff).unmaprw();                                                                   // ROM2SelX
	map(0x00a00000, 0x00dfffff).unmaprw();                                                                   // EEPROMSelX
	map(0x00e00000, 0x00ffffff).unmaprw();                                                                   // Reserved
}


INPUT_CHANGED_MEMBER( noki3310_state::key_irq )
{
	if (!newval)    // TODO: COL/ROW IRQ mask
		assert_irq(0);
}

static INPUT_PORTS_START( noki3310 )
	PORT_START("COL.0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_UP)       PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_0)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_DEL)      PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)

	PORT_START("COL.1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_DOWN)     PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_2)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_1)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)

	PORT_START("COL.2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_6)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_5)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_4)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)

	PORT_START("COL.3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_9)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_8)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_7)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)

	PORT_START("COL.4")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_3)        PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_MINUS)    PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_ENTER)    PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)

	PORT_START("PWR")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_SPACE)    PORT_CHANGED_MEMBER(DEVICE_SELF, noki3310_state, key_irq, 0)
	PORT_BIT( 0x1d, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END


MACHINE_CONFIG_START(noki3310_state::noki3310)

	/* basic machine hardware */
	MCFG_DEVICE_ADD("maincpu", ARM7_BE, 26000000 / 2)  // MAD2WD1 13 MHz, clock internally supplied to ARM core can be divided by 2, in sleep mode a 32768 Hz clock is used
	MCFG_DEVICE_PROGRAM_MAP(noki3310_map)

	/* video hardware */
	MCFG_SCREEN_ADD_MONOCHROME("screen", LCD, rgb_t::white())
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MCFG_SCREEN_SIZE(84, 48)
	MCFG_SCREEN_VISIBLE_AREA(0, 84-1, 0, 48-1)
	MCFG_SCREEN_UPDATE_DEVICE("pcd8544", pcd8544_device, screen_update)
	MCFG_SCREEN_PALETTE("palette")

	PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED);

	MCFG_PCD8544_ADD("pcd8544")
	MCFG_PCD8544_SCREEN_UPDATE_CALLBACK(noki3310_state, pcd8544_screen_update)

	INTEL_TE28F160(config, "flash");

MACHINE_CONFIG_END

MACHINE_CONFIG_START(noki3310_state::noki3330)
	noki3310(config);

	INTEL_TE28F320(config.replace(), "flash");

MACHINE_CONFIG_END

MACHINE_CONFIG_START(noki3310_state::noki3410)
	noki3330(config);

	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(96, 65)    // Philips OM6206

MACHINE_CONFIG_END

MACHINE_CONFIG_START(noki3310_state::noki7110)
	noki3330(config);

	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(96, 65)    // Epson SED1565

MACHINE_CONFIG_END

MACHINE_CONFIG_START(noki3310_state::noki6210)
	noki3330(config);

	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(96, 60)

MACHINE_CONFIG_END


// MAD2 internal ROMS
#define MAD2_INTERNAL_ROMS \
	ROM_REGION16_BE(0x10000, "boot_rom", ROMREGION_ERASE00 )    \
	ROM_LOAD("boot_rom", 0x00000, 0x10000, NO_DUMP)             \
																\
	ROM_REGION16_BE(0x20000, "dsp", ROMREGION_ERASE00 )         \
	ROM_LOAD("dsp_prom" , 0x00000, 0xc000, NO_DUMP)             \
	ROM_LOAD("dsp_drom" , 0x0c000, 0x4000, NO_DUMP)             \
	ROM_LOAD("dsp_pdrom", 0x10000, 0x1000, NO_DUMP)

ROM_START( noki3210 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "600", "v6.00")  // A 03-10-2000
	ROMX_LOAD("3210f600a.fls", 0x000000, 0x200000, CRC(6a978478) SHA1(6bdec2ec76aca15bc12b621be4402e455562454b), ROM_BIOS(0))

	ROM_REGION16_BE(0x04000, "eeprom", 0 )
	ROM_LOAD("3210 virgin eeprom,24c128.bin", 0x00000, 0x04000, CRC(af8d8f65) SHA1(33a24c04d81a2bd8abce4a6fd873029f0c633ecb))
ROM_END

ROM_START( noki3310 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "607", "v6.07")  // C 17-06-2003
	ROM_SYSTEM_BIOS(1, "579", "v5.79")  // N 11-11-2002
	ROM_SYSTEM_BIOS(2, "513", "v5.13")  // C 11-01-2002
	ROMX_LOAD("3310_607_ppm_c.fls", 0x000000, 0x200000, CRC(5743f6ba) SHA1(0e80b5f1698909c9850be770c1289566582aa77a), ROM_BIOS(0))
	ROMX_LOAD("3310 nr1 v5.79.fls", 0x000000, 0x200000, CRC(26b4f0df) SHA1(649de05ed88205a080693b918cd1295ac691dff1), ROM_BIOS(1))
	ROMX_LOAD("3310 v. 5.13 c.fls", 0x000000, 0x1d0000, CRC(0f66d256) SHA1(04d8dabe2c454d6a1161f352d85c69c409895000), ROM_BIOS(2))
	ROM_LOAD("3310 virgin eeprom 003d0000.fls", 0x1d0000, 0x030000, CRC(8393b1f7) SHA1(ab6c05bfa54ecd7c2acbd172009ffe6c7f130cb8))

	// these 2 are apparently the 6.39 update firmware data
	ROM_REGION(0x0200000, "misc", 0 )
	ROM_LOAD( "nhm5ny06.390",   0x000000, 0x0131161, CRC(5dfb1af7) SHA1(3a8ad82dc239b0cd18be60f537c4d0e07881155d) )
	ROM_LOAD( "nhm5ny06.39i",   0x000000, 0x0090288, CRC(ec214ee4) SHA1(f5b3b9ceaa7280d5246dd70d5696f8f6983122fc) )
ROM_END

ROM_START( noki3330 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "450", "v4.50")  // C 12-10-2001
	ROMX_LOAD("3330f450c.fls", 0x000000, 0x350000, CRC(259313e7) SHA1(88bcc39d9358fd8a8562fe3a0280f0ce82f5897f), ROM_BIOS(0))
	ROM_LOAD("3330 virgin eeprom 005f0000.fls", 0x3f0000, 0x010000, CRC(23459c10) SHA1(68481effb39d90a1639e8f261009c66e97d3e668))
ROM_END

ROM_START( noki3410 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "506", "v5.06")  // C 29-11-2002
	ROMX_LOAD("3410_5-06c.fls", 0x000000, 0x370000, CRC(1483e094) SHA1(ef26026297c779de7b01923a364ded822e720c38), ROM_BIOS(0))
ROM_END

ROM_START( noki5210 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "540", "v5.40")  // C 11-10-2003
	ROM_SYSTEM_BIOS(1, "525", "v5.25")  // C 26-02-2003
	ROM_SYSTEM_BIOS(2, "520", "v5.20")  // C 12-08-2002
	ROMX_LOAD("5210_5.40_ppm_c.fls", 0x000000, 0x380000, CRC(e37d5beb) SHA1(726f000780dd67750b7d2859687f846ce17a1bf7), ROM_BIOS(0))
	ROMX_LOAD("5210_5.25_ppm_c.fls", 0x000000, 0x380000, CRC(13bba458) SHA1(3b5244244743fba48f9061e158f95fc46b86446e), ROM_BIOS(1))
	ROMX_LOAD("5210_520_c.fls", 0x000000, 0x380000, CRC(38648cd3) SHA1(9210e15e6bd780f86c467bec33ef54d6393abe5a), ROM_BIOS(2))
ROM_END

ROM_START( noki6210 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "556", "v5.56")  // C 25-01-2002
	ROMX_LOAD("6210_556c.fls", 0x000000, 0x3a0000, CRC(203fb962) SHA1(3d9ea319503e78ec69b60d72cda23e461e118ea9), ROM_BIOS(0))
	ROM_LOAD("6210 virgin eeprom 005fa000.fls", 0x3fa000, 0x006000, CRC(3c6d3437) SHA1(b3a527ede1be87bd715fb3741a81eef5bd422efa))
ROM_END

ROM_START( noki6250 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "503", "v5.03")  // C 06-12-2001
	ROMX_LOAD("6250-503mcuppmc.fls", 0x000000, 0x3a0000, CRC(8dffb91b) SHA1(95607ce39c383bda75f1e6aeae67a214b787b0a1), ROM_BIOS(0))
	ROM_LOAD("6250 virgin eeprom 005fa000.fls", 0x3fa000, 0x006000, CRC(6087ce70) SHA1(57c29c8387caf864603d94a22bfb63ace427b7f9))
ROM_END

ROM_START( noki7110 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x0400000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "501", "v5.01")  // C 08-12-2000
	ROMX_LOAD("7110f501_ppmc.fls", 0x000000, 0x390000, CRC(919ac753) SHA1(53af8324919f455ba8199d2c05f7a921cfb811d5), ROM_BIOS(0))
	ROM_LOAD("7110 virgin eeprom 005fa000.fls", 0x3fa000, 0x006000, CRC(78e7d8c1) SHA1(8b4dd782fc9d1306268ba63124ee463ac646912b))
ROM_END

ROM_START( noki8210 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "531", "v5.31")  // C 08-03-2002
	ROMX_LOAD("8210_5.31ppm_c.fls", 0x000000, 0x1d0000, CRC(927022b1) SHA1(c1a0fe95cedb89a92b19654208cc4855e1a4988e), ROM_BIOS(0))
	ROM_LOAD("8210 virgin eeprom 003d0000.fls", 0x1d0000, 0x030000, CRC(37fddeea) SHA1(1c01ad3948ff9919890498a84f31052369d93e1d))
ROM_END

ROM_START( noki8250 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "502", "v5.02")  // K 28-01-2002
	ROMX_LOAD("8250-502mcuppmk.fls", 0x000000, 0x1d0000, CRC(2c58e48b) SHA1(f26c98ffcfffbbd5714889e10cfa41c5f6dd2529), ROM_BIOS(0))
	ROM_LOAD("8250 virgin eeprom 003d0000.fls", 0x1d0000, 0x030000, CRC(7ca585e0) SHA1(a974fb5fddcd0438ac4aaf32b431f1453e8d923c))
ROM_END

ROM_START( noki8850 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "531", "v5.31")  // C 08-03-2002
	ROMX_LOAD("8850v531.fls", 0x000000, 0x1d0000, CRC(8864fcb3) SHA1(9f966787403b68a09530680ad911302403eb1521), ROM_BIOS(0))
	ROM_LOAD("8850 virgin eeprom 003d0000.fls", 0x1d0000, 0x030000, CRC(4823f27e) SHA1(b09455302d98fbedf35072c9ecfd7721a04924b0))
ROM_END

ROM_START( noki8890 )
	MAD2_INTERNAL_ROMS

	ROM_REGION16_BE(0x200000, "flash", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS(0, "1220", "v12.20")    // C 19-03-2001
	ROMX_LOAD("8890_12.20_ppmc.fls", 0x000000, 0x1d0000, CRC(77206f78) SHA1(a214a0d69760ecd8eeca0b9d82f95c94bdfe70ed), ROM_BIOS(0))
	ROM_LOAD("8890 virgin eeprom 003d0000.fls", 0x1d0000, 0x030000, CRC(1d8ef3b5) SHA1(cc0924cfd4c0ce796fca157c640fc3183c2b5f2c))
ROM_END


//    YEAR  NAME      PARENT  COMPAT  MACHINE   INPUT     CLASS           INIT        COMPANY  FULLNAME      FLAGS
SYST( 1999, noki3210, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 3210", MACHINE_IS_SKELETON )
SYST( 1999, noki7110, 0,      0,      noki7110, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 7110", MACHINE_IS_SKELETON )
SYST( 1999, noki8210, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 8210", MACHINE_IS_SKELETON )
SYST( 1999, noki8850, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 8850", MACHINE_IS_SKELETON )
SYST( 2000, noki3310, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 3310", MACHINE_IS_SKELETON )
SYST( 2000, noki6210, 0,      0,      noki6210, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 6210", MACHINE_IS_SKELETON )
SYST( 2000, noki6250, 0,      0,      noki6210, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 6250", MACHINE_IS_SKELETON )
SYST( 2000, noki8250, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 8250", MACHINE_IS_SKELETON )
SYST( 2000, noki8890, 0,      0,      noki3310, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 8890", MACHINE_IS_SKELETON )
SYST( 2001, noki3330, 0,      0,      noki3330, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 3330", MACHINE_IS_SKELETON )
SYST( 2002, noki3410, 0,      0,      noki3410, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 3410", MACHINE_IS_SKELETON )
SYST( 2002, noki5210, 0,      0,      noki3330, noki3310, noki3310_state, empty_init, "Nokia", "Nokia 5210", MACHINE_IS_SKELETON )