summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/goodejan.c
blob: c3b531b229b1d6eb6ab31b0b9e01db6b98983aca (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
/******************************************************************************************

Seibu Mahjong games (distributed by Tecmo)

CPU: V30 D70116C-10
Sound: Z80 YM3812 M6295
OSC: 12.000MHz 16.000MHz 7.15909MHz


ToDo:
 Clean up inputs (some missing dips)
 Some sprite flickers on attract mode
 totmejan: Are the "dots" behind the girls in attract mode correct?

PCB Layout

|---------------------------------------------------------------|
|LA4460  YM3812  M6295  E-JAN.U0911 6116        Z80A 7.15909MHz |
|                                                               |
|                                    5.U1016                    |
|                SEI0100                        PAL             |
|                                                               |
|                           E-JAN.U064          4.U061          |
|                                                      SEI0160  |
|           SEI0181                             3.U063          |
|                                                               |
|                                                               |
|           PAL             SEI0200           6264        PAL   |
|                           TC110G21AF                          |
|           82S135.U083                 PAL   6264              |
|                                                               |
|  DSW     DSW                                                  |
|                                              62256     62256  |
|  E-JAN.U078                PAL                                |
|                                                               |
| PAL                        PAL               1.U022    2.U023 |
|            SEI0210                                            |
| PAL                        PAL                                |
|                                                               |
| 12MHz                16MHz        V30                         |
|---------------------------------------------------------------|
Notes:
      V30 clock - 8.000MHz [16/2]
      Z80 clock - 3.579545MHz [7.15909/2]
      YM3812 clock - 3.579545MHz [7.15909/2]
      M6295 clock - 1.000MHz [16/16], Pin 7 HIGH
      VSync - 60Hz
      HSync - 15.38kHz


Diagnostic Menu:
    Press and keep P1 Start and Reset
    You'll see cross hatch test screen, then press P1 Start again.


Secret menu hack [totmejan only] (I couldn't find official way to enter, so it's a hack):
    Mame internal debugger:
    PC=ECFFD ; 'SECRET MENU'
    Keys: BACKSPC, ENTER, Z, P1 START

    PC=E2EE2; 'TODAY: DATA' screen
    Keys: Z

    PC=ECC72; 'HMODE' screen


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

#include "emu.h"
#include "cpu/nec/nec.h"
#include "audio/seibu.h"
#include "sound/3812intf.h"
#include "video/seibu_crtc.h"


class goodejan_state : public driver_device
{
public:
	goodejan_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_gfxdecode(*this, "gfxdecode"),
		m_palette(*this, "palette"),
		m_sc0_vram(*this, "sc0_vram"),
		m_sc1_vram(*this, "sc1_vram"),
		m_sc2_vram(*this, "sc2_vram"),
		m_sc3_vram(*this, "sc3_vram"),
		m_spriteram16(*this, "sprite_ram") { }

	required_device<cpu_device> m_maincpu;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<palette_device> m_palette;

	required_shared_ptr<UINT16> m_sc0_vram;
	required_shared_ptr<UINT16> m_sc1_vram;
	required_shared_ptr<UINT16> m_sc2_vram;
	required_shared_ptr<UINT16> m_sc3_vram;
	required_shared_ptr<UINT16> m_spriteram16;

	tilemap_t *m_sc0_tilemap;
	tilemap_t *m_sc1_tilemap;
	tilemap_t *m_sc2_tilemap;
	tilemap_t *m_sc3_tilemap;

	UINT16 m_mux_data;
	UINT16 m_seibucrtc_sc0bank;
	UINT16 m_layer_en;
	UINT16 m_scrollram[6];

	DECLARE_WRITE16_MEMBER(gfxbank_w);
	DECLARE_READ16_MEMBER(mahjong_panel_r);
	DECLARE_WRITE16_MEMBER(mahjong_panel_w);
	DECLARE_WRITE16_MEMBER(seibucrtc_sc0vram_w);
	DECLARE_WRITE16_MEMBER(seibucrtc_sc1vram_w);
	DECLARE_WRITE16_MEMBER(seibucrtc_sc2vram_w);
	DECLARE_WRITE16_MEMBER(seibucrtc_sc3vram_w);
	DECLARE_WRITE16_MEMBER(layer_en_w);
	DECLARE_WRITE16_MEMBER(layer_scroll_w);

	TILE_GET_INFO_MEMBER(seibucrtc_sc0_tile_info);
	TILE_GET_INFO_MEMBER(seibucrtc_sc1_tile_info);
	TILE_GET_INFO_MEMBER(seibucrtc_sc2_tile_info);
	TILE_GET_INFO_MEMBER(seibucrtc_sc3_tile_info);

	INTERRUPT_GEN_MEMBER(irq);

	void seibucrtc_sc0bank_w(UINT16 data);
	void draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect,int pri);
	virtual void video_start();
	UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};

/*******************************
*
* Macros for the video registers
*
*******************************/

#define SEIBU_CRTC_ENABLE_SC0   (!(m_layer_en & 0x0001))
#define SEIBU_CRTC_ENABLE_SC2   (!(m_layer_en & 0x0002))
#define SEIBU_CRTC_ENABLE_SC1   (!(m_layer_en & 0x0004))
#define SEIBU_CRTC_ENABLE_SC3   (!(m_layer_en & 0x0008))
#define SEIBU_CRTC_ENABLE_SPR   (!(m_layer_en & 0x0010))

/************************************
* 0x20 - Screen 0 (BG) scroll x
************************************/
#define SEIBU_CRTC_SC0_SX   (m_scrollram[0])

/************************************
* 0x22 - Screen 0 (BG) scroll y
************************************/
#define SEIBU_CRTC_SC0_SY   (m_scrollram[1])

/************************************
* 0x24 - Screen 1 (FG) scroll x
************************************/
#define SEIBU_CRTC_SC1_SX   (m_scrollram[4])

/************************************
* 0x26 - Screen 1 (FG) scroll y
************************************/
#define SEIBU_CRTC_SC1_SY   (m_scrollram[5])

/************************************
* 0x28 - Screen 2 (MD) scroll x
************************************/
#define SEIBU_CRTC_SC2_SX   (m_scrollram[2])

/************************************
* 0x2a - Screen 2 (MD) scroll y
************************************/
#define SEIBU_CRTC_SC2_SY   (m_scrollram[3])

#if 0
/*******************************
* 0x1a - Layer Dynamic Paging?
*******************************/
#define SEIBU_CRTC_DYN_PAGING   (m_seibucrtc_vregs[0x001a/2])
#define SEIBU_CRTC_SC3_PAGE_SEL (SEIBU_CRTC_DYN_PAGING & 0x0002)

/*******************************
* 0x1c - Layer Enable
*******************************/
#define SEIBU_CRTC_LAYER_EN     (m_seibucrtc_vregs[0x001c/2])
#define SEIBU_CRTC_ENABLE_SC0   (!(SEIBU_CRTC_LAYER_EN & 0x0001))
#define SEIBU_CRTC_ENABLE_SC2   (!(SEIBU_CRTC_LAYER_EN & 0x0002))
#define SEIBU_CRTC_ENABLE_SC1   (!(SEIBU_CRTC_LAYER_EN & 0x0004))
#define SEIBU_CRTC_ENABLE_SC3   (!(SEIBU_CRTC_LAYER_EN & 0x0008))
#define SEIBU_CRTC_ENABLE_SPR   (!(SEIBU_CRTC_LAYER_EN & 0x0010))

/************************************
* 0x20 - Screen 0 (BG) scroll x
************************************/
#define SEIBU_CRTC_SC0_SX   (m_seibucrtc_vregs[0x0020/2])

/************************************
* 0x22 - Screen 0 (BG) scroll y
************************************/
#define SEIBU_CRTC_SC0_SY   (m_seibucrtc_vregs[0x0022/2])

/************************************
* 0x24 - Screen 1 (FG) scroll x
************************************/
#define SEIBU_CRTC_SC1_SX   (m_seibucrtc_vregs[0x0028/2])

/************************************
* 0x26 - Screen 1 (FG) scroll y
************************************/
#define SEIBU_CRTC_SC1_SY   (m_seibucrtc_vregs[0x002a/2])

/************************************
* 0x28 - Screen 2 (MD) scroll x
************************************/
#define SEIBU_CRTC_SC2_SX   (m_seibucrtc_vregs[0x0024/2])

/************************************
* 0x2a - Screen 2 (MD) scroll y
************************************/
#define SEIBU_CRTC_SC2_SY   (m_seibucrtc_vregs[0x0026/2])

/************************************
* 0x2c - Fix screen scroll x (global)
************************************/
#define SEIBU_CRTC_FIX_SX   (m_seibucrtc_vregs[0x002c/2])

/************************************
* 0x2e - Fix screen scroll y (global)
************************************/
#define SEIBU_CRTC_FIX_SY   (m_seibucrtc_vregs[0x002e/2])

#endif

/*******************************
*
* Write RAM accesses
*
*******************************/

WRITE16_MEMBER( goodejan_state::seibucrtc_sc0vram_w )
{
	COMBINE_DATA(&m_sc0_vram[offset]);
	m_sc0_tilemap->mark_tile_dirty(offset);
}

WRITE16_MEMBER( goodejan_state::seibucrtc_sc2vram_w )
{
	COMBINE_DATA(&m_sc2_vram[offset]);
	m_sc2_tilemap->mark_tile_dirty(offset);
}

WRITE16_MEMBER( goodejan_state::seibucrtc_sc1vram_w )
{
	COMBINE_DATA(&m_sc1_vram[offset]);
	m_sc1_tilemap->mark_tile_dirty(offset);
}

WRITE16_MEMBER( goodejan_state::seibucrtc_sc3vram_w )
{
	COMBINE_DATA(&m_sc3_vram[offset]);
	m_sc3_tilemap->mark_tile_dirty(offset);
}

void goodejan_state::seibucrtc_sc0bank_w(UINT16 data)
{
	m_seibucrtc_sc0bank = data & 1;
	m_sc0_tilemap->mark_all_dirty();
}


/*******************************
*
* Tilemap info accesses
*
*******************************/

TILE_GET_INFO_MEMBER( goodejan_state::seibucrtc_sc0_tile_info )
{
	int tile = m_sc0_vram[tile_index] & 0xfff;
	int color = (m_sc0_vram[tile_index] >> 12) & 0x0f;
	tile+=(m_seibucrtc_sc0bank<<12);
	SET_TILE_INFO_MEMBER(1, tile, color, 0);
}

TILE_GET_INFO_MEMBER( goodejan_state::seibucrtc_sc2_tile_info )
{
	int tile = m_sc2_vram[tile_index] & 0xfff;
	int color = (m_sc2_vram[tile_index] >> 12) & 0x0f;
	SET_TILE_INFO_MEMBER(2, tile, color, 0);
}

TILE_GET_INFO_MEMBER( goodejan_state::seibucrtc_sc1_tile_info )
{
	int tile = m_sc1_vram[tile_index] & 0xfff;
	int color = (m_sc1_vram[tile_index] >> 12) & 0x0f;
	SET_TILE_INFO_MEMBER(3, tile, color, 0);
}

TILE_GET_INFO_MEMBER( goodejan_state::seibucrtc_sc3_tile_info )
{
	int tile = m_sc3_vram[tile_index] & 0xfff;
	int color = (m_sc3_vram[tile_index] >> 12) & 0x0f;
	SET_TILE_INFO_MEMBER(4, tile, color, 0);
}

void goodejan_state::draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect,int pri)
{
	int offs,fx,fy,x,y,color,sprite;
	int dx,dy,ax,ay;

	for (offs = 0x400-4;offs >= 0;offs -= 4)
	{
		if ((m_spriteram16[offs+0]&0x8000)!=0x8000) continue;
		sprite = m_spriteram16[offs+1];
		if ((sprite>>14)!=pri) continue;
		sprite &= 0x1fff;

		y = m_spriteram16[offs+3];
		x = m_spriteram16[offs+2];

		if (x&0x8000) x=0-(0x200-(x&0x1ff));
		else x&=0x1ff;
		if (y&0x8000) y=0-(0x200-(y&0x1ff));
		else y&=0x1ff;

		color = m_spriteram16[offs+0]&0x3f;
		fx = m_spriteram16[offs+0]&0x4000;
		fy = m_spriteram16[offs+0]&0x2000;
		dy=((m_spriteram16[offs+0]&0x0380)>>7)+1;
		dx=((m_spriteram16[offs+0]&0x1c00)>>10)+1;

		for (ax=0; ax<dx; ax++)
			for (ay=0; ay<dy; ay++) {
				if (!fx)
					m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
						sprite++,
						color,fx,fy,x+ax*16,y+ay*16,15);
				else
					m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
						sprite++,
						color,fx,fy,x+(dx-1-ax)*16,y+ay*16,15);
			}
	}
}

void goodejan_state::video_start()
{
	m_sc0_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(goodejan_state::seibucrtc_sc0_tile_info),this),TILEMAP_SCAN_ROWS,16,16,32,32);
	m_sc2_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(goodejan_state::seibucrtc_sc2_tile_info),this),TILEMAP_SCAN_ROWS,16,16,32,32);
	m_sc1_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(goodejan_state::seibucrtc_sc1_tile_info),this),TILEMAP_SCAN_ROWS,16,16,32,32);
	m_sc3_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(goodejan_state::seibucrtc_sc3_tile_info),this),TILEMAP_SCAN_ROWS,8,8,32,32);

	m_sc2_tilemap->set_transparent_pen(15);
	m_sc1_tilemap->set_transparent_pen(15);
	m_sc3_tilemap->set_transparent_pen(15);

	m_seibucrtc_sc0bank = 0;

	save_item(NAME(m_mux_data));
	save_item(NAME(m_seibucrtc_sc0bank));
	save_item(NAME(m_layer_en));
	save_item(NAME(m_scrollram));
}

UINT32 goodejan_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
	bitmap.fill(m_palette->pen(0x7ff), cliprect); //black pen

	m_sc0_tilemap->set_scrollx(0, (SEIBU_CRTC_SC0_SX) & 0x1ff );
	m_sc0_tilemap->set_scrolly(0, (SEIBU_CRTC_SC0_SY) & 0x1ff );
	m_sc2_tilemap->set_scrollx(0, (SEIBU_CRTC_SC2_SX) & 0x1ff );
	m_sc2_tilemap->set_scrolly(0, (SEIBU_CRTC_SC2_SY) & 0x1ff );
	m_sc1_tilemap->set_scrollx(0, (SEIBU_CRTC_SC1_SX) & 0x1ff );
	m_sc1_tilemap->set_scrolly(0, (SEIBU_CRTC_SC1_SY) & 0x1ff );
	m_sc3_tilemap->set_scrollx(0, (0) & 0x1ff );
	m_sc3_tilemap->set_scrolly(0, (0) & 0x1ff );

	if(SEIBU_CRTC_ENABLE_SC0) { m_sc0_tilemap->draw(screen, bitmap, cliprect, 0,0); }
	if(SEIBU_CRTC_ENABLE_SPR) { draw_sprites(bitmap,cliprect, 2); }
	if(SEIBU_CRTC_ENABLE_SC2) { m_sc2_tilemap->draw(screen, bitmap, cliprect, 0,0); }
	if(SEIBU_CRTC_ENABLE_SPR) { draw_sprites(bitmap,cliprect, 1); }
	if(SEIBU_CRTC_ENABLE_SC1) { m_sc1_tilemap->draw(screen, bitmap, cliprect, 0,0); }
	if(SEIBU_CRTC_ENABLE_SPR) { draw_sprites(bitmap,cliprect, 0); }
	if(SEIBU_CRTC_ENABLE_SC3) { m_sc3_tilemap->draw(screen, bitmap, cliprect, 0,0); }
	if(SEIBU_CRTC_ENABLE_SPR) { draw_sprites(bitmap,cliprect, 3); }

	return 0;
}


#define GOODEJAN_MHZ1 7159090
#define GOODEJAN_MHZ2 16000000
#define GOODEJAN_MHZ3 12000000


WRITE16_MEMBER(goodejan_state::gfxbank_w)
{
	seibucrtc_sc0bank_w((data & 0x100)>>8);
}

/* Multiplexer device for the mahjong panel */
READ16_MEMBER(goodejan_state::mahjong_panel_r)
{
	UINT16 ret;
	ret = 0xffff;

	switch(m_mux_data)
	{
		case 1:    ret = ioport("KEY0")->read(); break;
		case 2:    ret = ioport("KEY1")->read(); break;
		case 4:    ret = ioport("KEY2")->read(); break;
		case 8:    ret = ioport("KEY3")->read(); break;
		case 0x10: ret = ioport("KEY4")->read(); break;
	}

	return ret;
}

WRITE16_MEMBER(goodejan_state::mahjong_panel_w)
{
	m_mux_data = data;
}

static ADDRESS_MAP_START( goodejan_map, AS_PROGRAM, 16, goodejan_state )
	AM_RANGE(0x00000, 0x0afff) AM_RAM
	AM_RANGE(0x0c000, 0x0c7ff) AM_RAM_WRITE(seibucrtc_sc0vram_w) AM_SHARE("sc0_vram")
	AM_RANGE(0x0c800, 0x0cfff) AM_RAM_WRITE(seibucrtc_sc3vram_w) AM_SHARE("sc3_vram")
	AM_RANGE(0x0d000, 0x0dfff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
	/*Guess: these two aren't used/initialized at all.*/
	AM_RANGE(0x0e000, 0x0e7ff) AM_RAM_WRITE(seibucrtc_sc1vram_w) AM_SHARE("sc1_vram")
	AM_RANGE(0x0e800, 0x0efff) AM_RAM_WRITE(seibucrtc_sc2vram_w) AM_SHARE("sc2_vram")
	AM_RANGE(0x0f800, 0x0ffff) AM_RAM AM_SHARE("sprite_ram")
	AM_RANGE(0xc0000, 0xfffff) AM_ROM
ADDRESS_MAP_END

/* totmejan CRTC is at 8000-804f,goodejan is at 8000-807f */
static ADDRESS_MAP_START( common_io_map, AS_IO, 16, goodejan_state )
	AM_RANGE(0x9000, 0x9001) AM_WRITE(gfxbank_w)
	AM_RANGE(0xb000, 0xb003) AM_WRITENOP
	AM_RANGE(0xb004, 0xb005) AM_WRITE(mahjong_panel_w)

	AM_RANGE(0xc000, 0xc001) AM_READ_PORT("DSW1")
	AM_RANGE(0xc002, 0xc003) AM_READ(mahjong_panel_r)
	AM_RANGE(0xc004, 0xc005) AM_READ_PORT("DSW2") // switches
	AM_RANGE(0xd000, 0xd00f) AM_DEVREADWRITE("seibu_sound", seibu_sound_device, main_word_r, main_word_w)
ADDRESS_MAP_END

static ADDRESS_MAP_START( totmejan_io_map, AS_IO, 16, goodejan_state )
	AM_RANGE(0x8000, 0x804f) AM_DEVREADWRITE("crtc", seibu_crtc_device, read, write)
	AM_IMPORT_FROM(common_io_map)
ADDRESS_MAP_END

static ADDRESS_MAP_START( goodejan_io_map, AS_IO, 16, goodejan_state )
	AM_RANGE(0x8000, 0x807f) AM_DEVREADWRITE("crtc", seibu_crtc_device, read_xor, write_xor)
	AM_IMPORT_FROM(common_io_map)
ADDRESS_MAP_END

static INPUT_PORTS_START( goodejan )
	SEIBU_COIN_INPUTS   /* coin inputs read through sound cpu */

	PORT_START("KEY0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_MAHJONG_A )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_MAHJONG_E )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MAHJONG_I )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_MAHJONG_M )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_MAHJONG_KAN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("KEY1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_MAHJONG_B )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_MAHJONG_F )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MAHJONG_J )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_MAHJONG_N )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_MAHJONG_REACH )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_MAHJONG_BET )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("KEY2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_MAHJONG_C )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_MAHJONG_G )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MAHJONG_K )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_MAHJONG_CHI )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_MAHJONG_RON )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("KEY3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_MAHJONG_D )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_MAHJONG_H )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MAHJONG_L )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_MAHJONG_PON )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("KEY4")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_MAHJONG_LAST_CHANCE )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_MAHJONG_SCORE )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MAHJONG_DOUBLE_UP )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_MAHJONG_FLIP_FLOP )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_MAHJONG_BIG )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_MAHJONG_SMALL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

/*  These games seems have 2 DIP Switches, DIPSW-A and DIPSW-B
    Game reads these switches at port C000h (16 bit) with two calls (subroutine 0EF522h [totmejan])
        Needs to be rearranged and cleaned up (DSW1 current holds all dips and DSW2 appears to be additional inputs) */

	PORT_START("DSW1")
	PORT_DIPUNKNOWN_DIPLOC( 0x0001, 0x0001, "DSWA:1" )
	PORT_DIPNAME( 0x001e, 0x001e, DEF_STR( Coinage ) )            PORT_DIPLOCATION("DSWA:2,3,4,5")
	PORT_DIPSETTING(      0x001e, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(      0x001c, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(      0x001a, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(      0x0018, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(      0x0016, DEF_STR( 5C_1C ) )
	PORT_DIPSETTING(      0x0014, DEF_STR( 6C_1C ) )
	PORT_DIPSETTING(      0x0012, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(      0x0010, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(      0x000e, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(      0x000c, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(      0x000a, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(      0x0008, DEF_STR( 2C_2C ) )
	PORT_DIPSETTING(      0x0006, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(      0x0004, DEF_STR( 5C_3C ) )
	PORT_DIPSETTING(      0x0002, DEF_STR( 8C_3C ) )
	PORT_DIPSETTING(      0x0000, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0x0020, 0x0020, "Credit(s) to Start" )          PORT_DIPLOCATION("DSWA:6")
	PORT_DIPSETTING(      0x0020, "1" )
	PORT_DIPSETTING(      0x0000, "2" )
	PORT_DIPNAME( 0x0040, 0x0040, "Cross Hatch Test" )            PORT_DIPLOCATION("DSWA:7")
	PORT_DIPSETTING(      0x0040, DEF_STR( Off ) )
	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
	PORT_DIPUNKNOWN_DIPLOC( 0x0080, 0x0080, "DSWA:8" )

		PORT_DIPNAME( 0x0300, 0x0100, "Starting Points" )             PORT_DIPLOCATION("DSWB:1,2")
	PORT_DIPSETTING(      0x0300, "1500" )
	PORT_DIPSETTING(      0x0200, "2000" )
	PORT_DIPSETTING(      0x0100, "1000" )
	PORT_DIPSETTING(      0x0000, "3000" )

	PORT_DIPUNKNOWN_DIPLOC( 0x0400, 0x0400, "DSWB:3" )
	PORT_DIPUNKNOWN_DIPLOC( 0x0800, 0x0800, "DSWB:4" )
/*  [totmejan] Game definitely uses these, reads these 2 bits and stores at address 01A28h as 0-1st bit;
    Sub-routine at E7C19h does some arithmetic operations depending on these.
    I cound't understand whats going on. Call performs just before dealing tiles. */

	PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Demo_Sounds ) )        PORT_DIPLOCATION("DSWB:5")
	PORT_DIPSETTING(      0x1000, DEF_STR( On ) )
	PORT_DIPSETTING(      0x0000, DEF_STR( Off ) )
	PORT_DIPNAME( 0x2000, 0x2000, "Explicit Scenes" )             PORT_DIPLOCATION("DSWB:6")
	PORT_DIPSETTING(      0x2000, DEF_STR( On ) )
	PORT_DIPSETTING(      0x0000, DEF_STR( Off ) )
	PORT_DIPUNKNOWN_DIPLOC( 0x4000, 0x4000, "DSWB:7" )
	PORT_DIPUNKNOWN_DIPLOC( 0x8000, 0x8000, "DSWB:8" )

	PORT_START("DSW2")
		PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_SERVICE1 )
		PORT_BIT( 0xfffe, IP_ACTIVE_LOW, IPT_UNKNOWN ) // 0x0002 must be kept low to work as service coin
INPUT_PORTS_END


static const gfx_layout tilelayout =
{
	16,16,  /* 16*16 sprites  */
	RGN_FRAC(1,1),
	4,  /* 4 bits per pixel */
	{ 12, 8, 4, 0 },
	{
		0,  1,  2,  3,
		16, 17, 18, 19,
		512,513,514,515,
		528,529,530,531
	},
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32, 8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
	32*32,
};

static const gfx_layout charlayout =
{
	8,8,
	RGN_FRAC(1,1),
	4,  /* 4 bits per pixel */
	{ 12, 8, 4, 0 },
	{
		0,  1,  2,  3,
		16, 17, 18, 19
	},
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32  },
	8*32
};

static GFXDECODE_START( goodejan )
	GFXDECODE_ENTRY( "spr_gfx", 0,tilelayout, 0x200, 0x40 ) /* Sprites */
	GFXDECODE_ENTRY( "bg_gfx", 0, tilelayout, 0x000, 0x30 ) /* Tiles */
	GFXDECODE_ENTRY( "md_gfx", 0, tilelayout, 0x300, 0x10 ) /* Text */
	GFXDECODE_ENTRY( "fg_gfx", 0, tilelayout, 0x600, 0x10 ) /* Tiles */
	GFXDECODE_ENTRY( "tx_gfx", 0, charlayout, 0x100, 0x10 ) /* Text */
GFXDECODE_END

INTERRUPT_GEN_MEMBER(goodejan_state::irq)
{
	device.execute().set_input_line_and_vector(0,HOLD_LINE,0x208/4);
/* vector 0x00c is just a reti */
}

WRITE16_MEMBER( goodejan_state::layer_en_w )
{
	m_layer_en = data;
}

WRITE16_MEMBER( goodejan_state::layer_scroll_w )
{
	COMBINE_DATA(&m_scrollram[offset]);
}



static MACHINE_CONFIG_START( goodejan, goodejan_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", V30, GOODEJAN_MHZ2/2)
	MCFG_CPU_PROGRAM_MAP(goodejan_map)
	MCFG_CPU_IO_MAP(goodejan_io_map)
	MCFG_CPU_VBLANK_INT_DRIVER("screen", goodejan_state, irq)

	SEIBU_SOUND_SYSTEM_CPU(GOODEJAN_MHZ1/2)

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1) //TODO: dynamic resolution
	MCFG_SCREEN_UPDATE_DRIVER(goodejan_state, screen_update)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_DEVICE_ADD("crtc", SEIBU_CRTC, 0)
	MCFG_SEIBU_CRTC_LAYER_EN_CB(WRITE16(goodejan_state, layer_en_w))
	MCFG_SEIBU_CRTC_LAYER_SCROLL_CB(WRITE16(goodejan_state, layer_scroll_w))

	MCFG_GFXDECODE_ADD("gfxdecode", "palette", goodejan)
	MCFG_PALETTE_ADD("palette", 0x1000)
	MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR)

	/* sound hardware */
	SEIBU_SOUND_SYSTEM_YM3812_INTERFACE(GOODEJAN_MHZ1/2,GOODEJAN_MHZ2/16)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( totmejan, goodejan )
	MCFG_CPU_MODIFY("maincpu")
	MCFG_CPU_IO_MAP(totmejan_io_map)
MACHINE_CONFIG_END

ROM_START( totmejan )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* V30 code */
	ROM_LOAD16_BYTE( "1.022",  0xc0000, 0x20000, CRC(63c3c54f) SHA1(3116b73b848a1f7391a47b994951ba1af92ba298) )
	ROM_LOAD16_BYTE( "2.023",  0xc0001, 0x20000, CRC(c0b9892f) SHA1(127f439a9e625d5a0f5e88102fed6500433cd9cc) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* 64k code for sound Z80 */
	ROM_LOAD( "5.1016", 0x000000, 0x08000,  CRC(8bfdb304) SHA1(454fd84eb7d9338f0b5f8de0ffae541d17b958d5) )
	ROM_CONTINUE(             0x010000, 0x08000 )
	ROM_COPY( "audiocpu", 0, 0x018000, 0x08000 )

	ROM_REGION( 0x080000, "spr_gfx", 0 )
	ROM_LOAD( "e-jan.078", 0x000000, 0x080000, CRC(ff9ee9d8) SHA1(5e49e9a666630ca9867ee96b9d2b8d6f503b25df) )

	ROM_REGION( 0x100000, "bg_gfx", 0 )
	ROM_LOAD( "e-jan.064", 0x000000, 0x100000, CRC(5f6185ee) SHA1(599e4a574672cd1571032e879b3032d06b70e4e2) )

	ROM_REGION( 0x20000, "md_gfx", ROMREGION_ERASEFF )
	/*Empty*/
	ROM_REGION( 0x20000, "fg_gfx", ROMREGION_ERASEFF )
	/*Empty*/

	ROM_REGION( 0x20000, "tx_gfx", ROMREGION_ERASEFF )
	ROM_LOAD16_BYTE( "3.063",  0x00000, 0x10000, CRC(61b5ae88) SHA1(16105a4e97765454079deda8eaa456d60d44e906) )
	ROM_LOAD16_BYTE( "4.061",  0x00001, 0x10000, CRC(29fb6ad2) SHA1(8a9c4625472daefca7fb73a9ef3717e86c3d632f) )

	ROM_REGION( 0x80000, "oki", 0 )  /* ADPCM samples */
	ROM_LOAD( "e-jan.0911", 0x00000, 0x80000, CRC(a7fb93c2) SHA1(c2e1300f142032c087c96e1a785af28a6d678947) )

	ROM_REGION( 0x200, "user1", 0 ) /* not used */
	ROM_LOAD( "fmj08.083", 0x000, 0x100, CRC(9657b7ad) SHA1(e9b469c2b3534593f7fe0ea19cbbf93b55957e42) )
ROM_END

ROM_START( goodejan )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* V30 code */
	ROM_LOAD16_BYTE( "1.022",  0xc0000, 0x20000, CRC(8555122f) SHA1(92e1ec02fb81ae972eb7492b5d226b40ca65c70d) )
	ROM_LOAD16_BYTE( "2.023",  0xc0001, 0x20000, CRC(32704d74) SHA1(9722b7f1e506a17e0fa5234e05f79333cd99a364) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* 64k code for sound Z80 */
	ROM_LOAD( "5.1016", 0x000000, 0x08000,  CRC(732e9eae) SHA1(d306610f08630708bbbb97d71e9ed4d7e027579a) )
	ROM_CONTINUE(             0x010000, 0x08000 )
	ROM_COPY( "audiocpu", 0, 0x018000, 0x08000 )

	ROM_REGION( 0x080000, "spr_gfx", 0 )
	ROM_LOAD( "e_jan2obj.078", 0x000000, 0x080000, CRC(0f892ef2) SHA1(188ae43db1c48fb6870aa45c64718e901831499b) )

	ROM_REGION( 0x100000, "bg_gfx", 0 )
	ROM_LOAD( "e_jan2scr.064", 0x000000, 0x100000, CRC(71654822) SHA1(fe2a128413999085e321e455aeebda0360d38cb8) )

	ROM_REGION( 0x20000, "md_gfx", ROMREGION_ERASEFF )
	/*Empty*/
	ROM_REGION( 0x20000, "fg_gfx", ROMREGION_ERASEFF )
	/*Empty*/

	ROM_REGION( 0x20000, "tx_gfx", ROMREGION_ERASEFF )
	ROM_LOAD16_BYTE( "3.063",  0x00000, 0x10000, CRC(f355564a) SHA1(35140cc86504d6fdaba00b520d226724bac9f546) )
	ROM_LOAD16_BYTE( "4.061",  0x00001, 0x10000, CRC(5bdf7225) SHA1(a8eded9dc5be1db20cddbed1ae8c22de1674de2a) )

	ROM_REGION( 0x80000, "oki", 0 )  /* ADPCM samples */
	ROM_LOAD( "e-jan.911", 0x00000, 0x80000, CRC(6d2cbc35) SHA1(61f47e2a94b8877906224f46d8301a26a0b9e55f) )

	ROM_REGION( 0x200, "user1", 0 ) /* not used */
	ROM_LOAD( "fmj08.083", 0x000, 0x100, CRC(9657b7ad) SHA1(e9b469c2b3534593f7fe0ea19cbbf93b55957e42) )
ROM_END

ROM_START( goodejana )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* V30 code */
	ROM_LOAD16_BYTE( "1.u022",  0xc0000, 0x20000, CRC(d496cdd1) SHA1(144a9d8850b3b62520b71efd2ed1459bd673ac92) )
	ROM_LOAD16_BYTE( "2.u023",  0xc0001, 0x20000, CRC(5eda77bb) SHA1(ac54125988f9c929207becf0dcbab72eff4f054a) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* 64k code for sound Z80 */
	ROM_LOAD( "5.1016", 0x000000, 0x08000,  CRC(732e9eae) SHA1(d306610f08630708bbbb97d71e9ed4d7e027579a) )
	ROM_CONTINUE(             0x010000, 0x08000 )
	ROM_COPY( "audiocpu", 0, 0x018000, 0x08000 )

	ROM_REGION( 0x080000, "spr_gfx", 0 )
	ROM_LOAD( "e_jan2obj.078", 0x000000, 0x080000, CRC(0f892ef2) SHA1(188ae43db1c48fb6870aa45c64718e901831499b) )

	ROM_REGION( 0x100000, "bg_gfx", 0 )
	ROM_LOAD( "e_jan2scr.064", 0x000000, 0x100000, CRC(71654822) SHA1(fe2a128413999085e321e455aeebda0360d38cb8) )

	ROM_REGION( 0x20000, "md_gfx", ROMREGION_ERASEFF )
	/*Empty*/
	ROM_REGION( 0x20000, "fg_gfx", ROMREGION_ERASEFF )
	/*Empty*/

	ROM_REGION( 0x20000, "tx_gfx", ROMREGION_ERASEFF )
	ROM_LOAD16_BYTE( "3.063",  0x00000, 0x10000, CRC(f355564a) SHA1(35140cc86504d6fdaba00b520d226724bac9f546) )
	ROM_LOAD16_BYTE( "4.061",  0x00001, 0x10000, CRC(5bdf7225) SHA1(a8eded9dc5be1db20cddbed1ae8c22de1674de2a) )

	ROM_REGION( 0x80000, "oki", 0 )  /* ADPCM samples */
	ROM_LOAD( "e-jan.911", 0x00000, 0x80000, CRC(6d2cbc35) SHA1(61f47e2a94b8877906224f46d8301a26a0b9e55f) )

	ROM_REGION( 0x200, "user1", 0 ) /* not used */
	ROM_LOAD( "fmj08.083", 0x000, 0x100, CRC(9657b7ad) SHA1(e9b469c2b3534593f7fe0ea19cbbf93b55957e42) )
ROM_END

GAME( 1991, totmejan, 0,        totmejan, goodejan, driver_device, 0, ROT0, "Seibu Kaihatsu (Tecmo license)", "Tottemo E Jong", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
GAME( 1991, goodejan, 0,        goodejan, goodejan, driver_device, 0, ROT0, "Seibu Kaihatsu (Tecmo license)", "Good E Jong -Kachinuki Mahjong Syoukin Oh!!- (set 1)", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
GAME( 1991, goodejana,goodejan, goodejan, goodejan, driver_device, 0, ROT0, "Seibu Kaihatsu (Tecmo license)", "Good E Jong -Kachinuki Mahjong Syoukin Oh!!- (set 2)", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )