summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/amaticmg.c
blob: a458ac04553b2a1bcb8f574acf66ca2c71c3aa53 (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
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
/**********************************************************************************

  AMA-8000-1 / AMA-8000-2 Multi Game System.
  Amatic Trading GmbH.

  Encrypted gambling hardware based on a custom CPU.

  Driver by Roberto Fresca & Angelo Salese.


***********************************************************************************

  Hardware Notes
  --------------

  ------------------------------------------------
    Board #1 (Super Stars) AMA-8000-1
  ------------------------------------------------

  1x 40-pin custom CPU labeled:

     0288
     8012 (last digit is hard to read)
     11.12.96

  1x Unknown 40-pins IC (maybe 6845).
  1x Altera EPM5130LC (84-pins).
  1x KS82C55A (2x PPI).
  1x Unknown 40-pins IC (maybe another PPI).

  1x Dallas DS1236-10 (micro manager).
  1x Push button.

  1x Unknown 24-pin IC labeled SM64.
  1x Unknown 8-pin IC labeled SM65 (looks like a DAC).
  1x Unknown 8-pin IC no labeled (looks like a DAC).
  1x MC14538BCL (Dual precision monostable multivibrator).
  1x TDA2003 Audio Amp.
  1x Pot.

  1x HY6264ALP-10 (RAM).
  1x HY62256ALP-10 (RAM).

  1x 1mb ROM, near CPU.
  2x 27C512 ROMs.
  1x N82S147AN bipolar PROM.

  1x Xtal 16 MHz.
  1x DIP switches bank (x8).
  1x Battery.

  1x 2x17 male connector (like IDE ones).
  1x 2x8 contacts edge connector.
  1x 2x22 contacts edge connector.


  ------------------------------------------------
     Multi-Game I v2.4 (AMA-8000-2)
  ------------------------------------------------

  1x 40-pin custom CPU labeled:

     Amatic Trading GMBH
     Lfnd. Nr. 1000
     Type:     801 I
     Datum:    12.02.96

  1x GoldStar 6845S.
  1x Altera EPM5130LC (84-pins).
  3x PPI 8255AC-2.

  1x Dallas DS1236-10 (micro manager).
  1x Push button.

  1x Unknown 24-pin IC labeled K-666 9330.
  1x Unknown 8-pin IC labeled K-664 9432 (looks like a DAC).
  1x LM358P (8-pin).
  1x MC14538BCL (Dual precision monostable multivibrator).
  1x TDA2003 Audio Amp.
  1x Pot.

  1x KM6264BL-7 (RAM).
  1x HY62256A-10 (RAM).

  1x 27C2001 ROM labeled MGI V GER 3.9/I/8201.
  1x 27C4000 ROM labeled Multi 2.4 ZG1.
  1x 27C4001 ROM labeled Multi 2.4 ZG2.
  1x 27C4001 ROM labeled Multi 2.4 ZG3.
  2x N82S147AN bipolar PROMs.

  1x Xtal 16 MHz.
  1x DIP switches bank (x8).
  1x Battery.

  1x 2x17 male connector (like IDE ones).
  1x 2x36 contacts edge connector.


  PCB Layout:
              ________________________________________________________________________
             | |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |
   __________| |  |  |  |  |  |  |  |  |36x2 edge connector |  |  |  |  |  |  |  |  | |__________
  |    ____ ____                                                                                 |
  |   |  :::::  |                                                                                |
  |   |_________|                DIP1                                                            |
  | __________   __________   __________                                             __________  |
  ||ULN 2803A | |ULN 2803A | | 12345678 |                                           |ULN 2803A | |
  ||__________| |__________| |__________|                                           |__________| |
  |                                                                                              |
  |    __________________________    __________________________    __________________________    |
  |   |        NEC JAPAN         |  |        NEC JAPAN         |  |        NEC JAPAN         |   |
  |   |        D8255AC_2         |  |        D8255AC_2         |  |        D8255AC_2         |   |
  |   |        9150xD006         |  |        9150xD006         |  |        9150xD006         |   |
  |   |                          |  |                          |  |                          |   |
  |   |__________________________|  |__________________________|  |__________________________|   |
  |                                                                                              |
  |   _________________________                                                                  |
  |  |AMATIC TRADING GMBH      |                  __________    _______________                  |
  |  |Lfnd. Nr. 1000           |                 |   XTAL   |  |     K_666     |                 |
  |  |Type: 80 / I             |                 |  16 Mhz  |  |     9330      |                 |
  |  |Datum: 12.02.96          |                 |__________|  |               |                 |
  |  |_________________________|                               |_______________|                 |
  |                                                                                              |
  |  ? ____      ___________________       __________________    __                              |
  |   /    \    |MGI V GER          |     |                  |  |H |                             |
  |  | Batt |   |3.9 / I / 8201     |     |      ALTERA      |  |  |                             |
  |  | ery  |   |M27C2001           |     |                  |  |__|                             |
  |   \____/    |___________________|     |    EPM5130LC     |                                   |
  |                                       |      I9542       |                                   |
  |      __        _________________      |                  |   __                 ______       |
  |     |  |      |HY62256A         |     |                  |  |G |               /______\      |
  |     |  |      |LP_10            |     |                  |  |  |              |DALLAS  |     |
  |     |A |      |9506C  Korea     |     |                  |  |__|              |DS1994_F|     |
  |     |  |      |_________________|     |                  |                    |_______5|     |
  |     |  |                              |__________________|                     \______/      |
  |     |__|                                                                                     |
  |       _______________________            __    __    __    __    __    __                    |
  |      |   :::::::::::::::::   |          |  |  |  |  |  |  |  |  |  |  |  |                   |
  |      |___________ ___________|          |  |  |  |  |  |  |  |  |  |  |  |    ____________   |
  |                                         |C |  |B |  |B |  |B |  |B |  |B |   | GD74HCT273 |  |
  |          __________    _______          |  |  |  |  |  |  |  |  |  |  |  |   |____________|  |
  |         |MC14538BCP|  |       |         |  |  |  |  |  |  |  |  |  |  |  |    ____________   |
  |         |__________|  |SEC    |   __    |__|  |__|  |__|  |__|  |__|  |__|   | N82S147AN  |  |
  |                       |  KOREA|  |  |                                        |____________|  |
  |                       |       |  |  |     _______    _______    _______                      |
  |   __   __   __   __   |   506Y|  |E |    |       |  |       |  |       |                     |
  |  |  | |  | |  | |  |  |       |  |  |    |MULTI  |  |MULTI  |  |MULTI  |                     |
  |  |D | |D | |D | |D |  |KM6264B|  |  |    |    2.4|  |    2.4|  |    2.4|                     |
  |  |  | |  | |  | |  |  |L_7    |  |__|    |       |  |       |  |       |      ____________   |
  |  |  | |  | |  | |  |  |       |          |  ZG1  |  |  ZG2  |  |  ZG3  |     | GD74HCT273 |  |
  |  |__| |__| |__| |__|  |_______|          |       |  |       |  |       |     |____________|  |
  |                                          |       |  |       |  |       |      ____________   |
  |  ________________________    __   __     |27C4000|  |27C4001|  |27C4001|     | N82S147AN  |  |
  | |        GOLDSTAR        |  |  | |  |    |       |  |       |  |       |     |____________|  |
  | |        GM68B45S        |  |  | |  |    |       |  |       |  |       |      _________      |
  | |        9512            |  |F | |E |    |_______|  |_______|  |_______|     |GD74HC174|     |
  | |                        |  |  | |  |                                        |_________|     |
  | |________________________|  |  | |  |                                      _________         |
  |                             |  | |  |                                     |GD74HC174|        |
  |                             |__| |__|        AMATIC AMA_8000_2            |_________|        |
  |______________________________________________________________________________________________|

  A = Dallas / DS1236_10 / 9443A5
  B = MALAYSIA 114CS / SN74LS194AN
  C = MALAYSIA 544CS / SN74LS194AN
  D = GS 9447 / GD74LS157
  E = 53A9TKK / SN74HC374N
  F = GS 9504 / GD74HC244
  G = LM358P
  H = K_664 / 9432


  DIP1:
   ___________________
  | ON                |
  |  _______________  |
  | |_|_|_|_|_|_|_|_| |
  | |#|#|#|#|#|#|#|#| |
  | |_______________| |
  |  1 2 3 4 5 6 7 8  |
  |___________________|


  ------------------------------------------------
     Multi-Game III v3.5 (AMA-8000-2)
  ------------------------------------------------

  1x 40-pin custom CPU labeled:

     Amatic
     Lfnd. Nr. 99/5070 467
     Type:     80(1?) I
     Datum:    10.01.00

  1x F68B45P.
  1x Altera EPM5130LC (84-pins).
  3x PPI NEC D71055C.

  1x Dallas DS1236-5 (micro manager).
  1x Push button.

  1x Yamaha YM3812.
  1x Yamaha Y3014B (DAC).
  1x LM358M (8-pin).
  1x MC14538 (Dual precision monostable multivibrator).
  1x TDA2003 (Audio Amp, Heatsinked).
  1x Pot.

  1x HY6264A (RAM).
  1x KM62256 (RAM).

  1x 27C2000 ROM labeled 'MG III VGer 3.5/I/8205'.
  1x 27C4000 ROM labeled 'MG III 51 ZG1'.
  1x 27C040 ROM labeled 'MG III 51 ZG2'.
  1x 27C040 ROM labeled 'MG III 51 ZG3'.
  1x 27C1024 labeled 'V'

  1x Xtal 16 MHz.
  1x DIP switches bank (x8).
  1x Battery.

  2x 2x17 male connector (like IDE ones).
  1x 2x36 contacts edge connector.


***********************************************************************************


  Memory Map
  ----------

  0000-7FFF   ROM Space.
  8000-9FFF   NVRAM.
  A000-AFFF   Video RAM.
  B000-BFFF   RAM.
  C000-FFFF   ROM Banking

  I/O

  00-03       PPI 8255 0
  20-23       PPI 8255 1
  40-41       YM3812 Sound device.
  60-60       MC6845 CRTC Address.
  61-61       MC6845 CRTC Register.
  80-80       unknown (W)
  C0-C0       ROM Bank selector.
  E6-E6       NMI Mask.


***********************************************************************************

  +------------------------------------------------------------------------------+
  |             AMATIC Standard Edge Connector (Videomat, Multigame)             |
  +----------------------------------------+-------------------------------------+
  |            Component Side              |              Solder Side            |
  +-------------------+---------------+----+----+---------------+----------------+
  |     Function      |   Direction   | Nr | Nr |   Direction   |    Function    |
  +-------------------+---------------+----+----+---------------+----------------+
  | Lamp-HOLD3        |    OUTPUT     | 36 | r  |    ------     | N/C            |
  | REMOTE-PL         |    OUTPUT     | 35 | p  |    OUTPUT     | COIN-INVERTER  |
  | REMOTE-CLOCK      |    OUTPUT     | 34 | n  |    OUTPUT     | D-OUT          |
  | D-IN              |    INPUT      | 33 | m  |    SUPPLY     | +5V            |
  | REMOTE-SELECT     |    INPUT      | 32 | l  |    INPUT      | ???            |
  | N/C               |    ------     | 31 | k  |    INPUT      | ???            |
  | Coin-INPUT4       |    INPUT      | 30 | j  |    INPUT      | ???            |
  | GND               |    SUPPLY     | 29 | h  |    SUPPLY     | GND            |
  | HOPPER-RELAIS     |    OUTPUT     | 28 | f  |    INPUT      | ANTENNE        |
  | N/C               |    ------     | 27 | e  |    ------     | N/C            |
  | TICKET-OUT        |    OUTPUT     | 26 | d  |    ------     | N/C            |
  | N/C               |    ------     | 25 | c  |    ------     | N/C            |
  | KEY-DATA          |   TTLINPUT    | 24 | b  |   TTLINPUT    | KEY-DATA       |
  | N/C               |    ------     | 23 | a  |    INPUT      | KEY-CONTACT    |
  | GND               |    SUPPLY     | 22 | Z  |    SUPPLY     | GND            |
  | GND               |    SUPPLY     | 21 | Y  |    SUPPLY     | GND            |
  | GND               |    SUPPLY     | 20 | X  |    SUPPLY     | GND            |
  | +5V               |    SUPPLY     | 19 | W  |    SUPPLY     | +5V            |
  | +12V              |    SUPPLY     | 18 | V  |    SUPPLY     | +12V           |
  | Lamp-HOLD1        |    OUTPUT     | 17 | U  |    OUTPUT     | Lamp-START     |
  | Lamp-HOLD2        |    OUTPUT     | 16 | T  |    OUTPUT     | Lamp-HOLD5     |
  | Lamp-CANCEL       |    OUTPUT     | 15 | S  |    OUTPUT     | Lamp-HOLD4     |
  | Coin-INPUT1       |    INPUT      | 14 | R  |    OUTPUT     | HOPPER-OUT     |
  | Mech. Counter-IN  |    OUTPUT     | 13 | P  |    INPUT      | REMOTE         |
  | Mech. Counter-OUT |    OUTPUT     | 12 | N  |    INPUT      | Button-HOLD1   |
  | Mech. Counter-EXT |    OUTPUT     | 11 | M  |    INPUT      | Button-CANCEL  |
  | Button-HOLD5      |    INPUT      | 10 | L  |    INPUT      | Button-START   |
  | Bookkeeping 2     |    INPUT      | 09 | K  |    INPUT      | Bookkeeping 1  |
  | Button-HOLD2      |    INPUT      | 08 | J  |    INPUT      | Button-HOLD4   |
  | Button-HOPPER-OUT |    INPUT      | 07 | H  |    INPUT      | Button-HOLD3   |
  | HOPPER-COUNT      |    INPUT      | 06 | F  |    ------     | N/C            |
  | Coin-INPUT3       |    INPUT      | 05 | E  |    INPUT      | Coin-INPUT2    |
  | Monitor-GREEN     | TTLOUT-Analog | 04 | D  | TTLOUT-Analog | Monitor-RED    |
  | Monitor-SYNC      | TTLOUT-Analog | 03 | C  | TTLOUT-Analog | Monitor-BLUE   |
  | SPEAKER           |  OUT-Analog   | 02 | B  |    SUPPLY     | Monitor-GND    |
  | CREDIT-CLEAR      |    INPUT      | 01 | A  |    SUPPLY     | SPEAKER-GND    |
  +-------------------+---------------+----+----+---------------+----------------+

***********************************************************************************


  Findings about the encryption scheme
  ------------------------------------

  The program ROM is encrypted, but... The programmers left the cow out...
  They left some blank spaces that allow see some encryption patterns.


  Example:


  1) A string of 4 consecutive values with relation between them, is repeated once.
     Then the whole string is repeated again, but with bit 3 XOR'ed.

         +------------ value1
         |  +--------- value2 = value1 ^ 0x88
         |  |  +------ value3 = value1 ^ 0x22
         |  |  |  +--- value4 = value1 ^ 0x22 ^ 0x88
         |  |  |  |
         |  |  |  |

  $E000: AF 27 8D 05   AF 27 8D 05   A7 2F 85 0D  A7 2F 85 0D
        +-----------+ +-----------+ |                        |
           string1       string1    |                        |
        +-------------------------+ +------------------------+
                  string2                string2 ^ 0x08
        +----------------------------------------------------+
                                string3


  3) Then, all the E000-E00F range repeats in E010-E01F, but with bit 2 XOR'ed.

  $E010: AB 23 89 01 AB 23 89 01 A3 2B 81 09 A3 2B 81 09
        +-----------------------------------------------+
                        string3 ^ 0x04


  4) Then repeat all the E000-E01F range...

  $E000: AF 27 8D 05 AF 27 8D 05 A7 2F 85 0D A7 2F 85 0D
  $E010: AB 23 89 01 AB 23 89 01 A3 2B 81 09 A3 2B 81 09

  $E020: AF 27 8D 05 AF 27 8D 05 A7 2F 85 0D A7 2F 85 0D
  $E030: AB 23 89 01 AB 23 89 01 A3 2B 81 09 A3 2B 81 09


  5) Then the original value changes (0xAF -> 0x63), using the same algorithm
     (steps 1-4) for the next 0x40 bytes...

  $E040: 63 EB 41 C9 63 EB 41 C9 6B E3 49 C1 6B E3 49 C1
  $E050: 67 EF 45 CD 67 EF 45 CD 6F E7 4D C5 6F E7 4D C5
  $E060: 63 EB 41 C9 63 EB 41 C9 6B E3 49 C1 6B E3 49 C1
  $E070: 67 EF 45 CD 67 EF 45 CD 6F E7 4D C5 6F E7 4D C5

  Repeat step (5) ...till $E0FF.


  The encryption pattern repeats for the next 0x100 bytes, so the E000-E0FF range is repeated
  in E100-E1FF. Then the original values changes again, creating another block of 0x200 bytes.

  And so on....


***********************************************************************************


  [2012/04/27]

  - Reworked the decryption function.
  - Added Multi Game III (V.Ger 3.64).

  [2012/04/23]

  - A lot of work on AMA-8000-1 machine and gfx.
  - Identified the slots game as Super Stars.
  - Changed am_uslot to suprstar.
  - Reworked inputs from the scratch.
  - Added support for outputs: lamps & counters.
  - Added a button-lamps layout.
  - Promoted the game to working state.
  - Added technical notes.
  - Renamed amaticmg3 to amaticmg2 since is the AMA-8000-2 system.
  - Found the hopper motor signal. Mapped the hopper pay pulse to
     key 'Q'. Now is possible to payout manually, avoiding the hang
     for hopper empty or timeout.

  [2009/09/11]

  - Initial release.
  - Added hardware specs from PCB pictures. Figured out some components.
  - Added findings about the encryption scheme.
  - Decoded 2 graphics bitplanes.
  - Added pre-defined clocks.
  - Added technical notes.


  *** TO DO ***

  - Super Stars: video garbage at first boot (doesn't happen if you soft-reset), btanb?
  - Hook the remaining GFX bitplanes.
  - Color decode routines.
  - Remaining sound devices.
  - Hopper as device... ;)


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


#define MASTER_CLOCK	XTAL_16MHz
#define CPU_CLOCK		MASTER_CLOCK/4	/* guess */
#define SND_CLOCK		MASTER_CLOCK/4	/* guess */
#define CRTC_CLOCK		MASTER_CLOCK/8	/* guess */


#include "emu.h"
#include "cpu/z80/z80.h"
#include "video/mc6845.h"
#include "machine/i8255.h"
#include "sound/3812intf.h"
#include "sound/dac.h"

#include "suprstar.lh"


class amaticmg_state : public driver_device
{
public:
	amaticmg_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_attr(*this, "attr"),
		m_vram(*this, "vram")
		{ }

	required_shared_ptr<UINT8> m_attr;
	required_shared_ptr<UINT8> m_vram;

	DECLARE_WRITE8_MEMBER(rombank_w);
	DECLARE_WRITE8_MEMBER(nmi_mask_w);
	DECLARE_WRITE8_MEMBER(unk80_w);

	UINT8 m_nmi_mask;
};


/************************************
*          Video Hardware           *
************************************/

static VIDEO_START( amaticmg )
{
}

static SCREEN_UPDATE_IND16( amaticmg )
{
	amaticmg_state *state = screen.machine().driver_data<amaticmg_state>();
	const gfx_element *gfx = screen.machine().gfx[0];
	int y,x;
	int count = 0;

	for (y=0;y<32;y++)
	{
		for (x=0;x<96;x++)
		{
			UINT16 tile = state->m_vram[count];
			UINT8 color;

			tile += ((state->m_attr[count]&0x0f)<<8);
			/* TODO: this looks so out of place ... */
			color = (state->m_attr[count]&0xf0)>>3;

			drawgfx_opaque(bitmap,cliprect,gfx,tile,color,0,0,x*4,y*8);
			count++;
		}
	}

	return 0;
}

static SCREEN_UPDATE_IND16( amaticmg2 )
{
	amaticmg_state *state = screen.machine().driver_data<amaticmg_state>();
	const gfx_element *gfx = screen.machine().gfx[0];
	int y,x;
	int count = 0;

	for (y=0;y<32;y++)
	{
		for (x=0;x<96;x++)
		{
			UINT16 tile = state->m_vram[count];
			UINT8 color;

			tile += ((state->m_attr[count]&0xff)<<8);
			color = 0;

			drawgfx_opaque(bitmap,cliprect,gfx,tile,color,0,0,x*4,y*8);
			count++;
		}
	}

	return 0;
}

static PALETTE_INIT( amaticmg )
{
	const UINT8 *color_prom = machine.root_device().memregion("proms")->base();
	int	bit0, bit1, bit2 , r, g, b;
	int	i;

	for (i = 0; i < 0x200; ++i)
	{
		bit0 = 0;
		bit1 = (color_prom[0] >> 6) & 0x01;
		bit2 = (color_prom[0] >> 7) & 0x01;
		g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
		bit0 = (color_prom[0] >> 0) & 0x01;
		bit1 = (color_prom[0] >> 1) & 0x01;
		bit2 = (color_prom[0] >> 2) & 0x01;
		r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
		bit0 = (color_prom[0] >> 3) & 0x01;
		bit1 = (color_prom[0] >> 4) & 0x01;
		bit2 = (color_prom[0] >> 5) & 0x01;
		b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;

		palette_set_color(machine, i, MAKE_RGB(r, g, b));
		color_prom++;
	}
}


static PALETTE_INIT( amaticmg2 )
{
	const UINT8 *color_prom = machine.root_device().memregion("proms")->base();
	int	r, g, b;
	int	i;

	for (i = 0; i < 0x20000; i+=2)
	{
		b = ((color_prom[1] & 0xf8) >> 3);
		g = ((color_prom[0] & 0xc0) >> 6) | ((color_prom[1] & 0x7) << 2);
		r = ((color_prom[0] & 0x3e) >> 1);

		palette_set_color_rgb(machine, i >> 1, pal5bit(r), pal5bit(g), pal5bit(b));
		color_prom+=2;
	}
}

/************************************
*       Read/Write Handlers         *
************************************/

WRITE8_MEMBER( amaticmg_state::rombank_w )
{
	membank("bank1")->set_entry(data & 0xf);
}

WRITE8_MEMBER( amaticmg_state::nmi_mask_w )
{
	m_nmi_mask = (data & 1) ^ 1;
}

static WRITE8_DEVICE_HANDLER(out_a_w)
{
/*  LAMPS A:

    7654 3210
    x--- -xxx  (unknown)
    ---- x---  START
    ---x ----  BET
    --x- ----  HOLD3
    -x-- ----  HOLD4
*/

	output_set_lamp_value(0, (data >> 3) & 1);	/* START */
	output_set_lamp_value(1, (data >> 4) & 1);	/* BET */
	output_set_lamp_value(2, (data >> 5) & 1);	/* HOLD3 */
	output_set_lamp_value(3, (data >> 6) & 1);	/* HOLD4 */

	logerror("port A: %2X\n", data);
}

static WRITE8_DEVICE_HANDLER(out_c_w)
{
/*  LAMPS B:

    7654 3210
    ---- ---x  Coin Out counter
    ---- --x-  HOLD1
    ---- -x--  Coin In counter
    ---x ----  HOLD2
    -x-- ----  CANCEL
    x--- ----  Hopper motor
    --x- x---  (unknown)
*/
	output_set_lamp_value(4, (data >> 1) & 1);	/* HOLD1 */
	output_set_lamp_value(5, (data >> 4) & 1);	/* HOLD2 */
	output_set_lamp_value(6, (data >> 6) & 1);	/* CANCEL */

//	coin_counter_w(machine(), 0, data & 0x04);	/* Coin In */
//	coin_counter_w(machine(), 1, data & 0x01);	/* Coin Out */

	logerror("port C: %2X\n", data);
}

WRITE8_MEMBER( amaticmg_state::unk80_w )
{
//	dac_data_w(machine().device("dac"), data & 0x01);		/* Sound DAC */
}



/************************************
*      Memory Map Information       *
************************************/

static ADDRESS_MAP_START( amaticmg_map, AS_PROGRAM, 8, amaticmg_state )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0x8000, 0x9fff) AM_RAM // AM_SHARE("nvram")
	AM_RANGE(0xa000, 0xafff) AM_RAM AM_SHARE("vram")
	AM_RANGE(0xb000, 0xbfff) AM_RAM AM_SHARE("attr")
	AM_RANGE(0xc000, 0xffff) AM_ROMBANK("bank1")
ADDRESS_MAP_END

static ADDRESS_MAP_START( amaticmg_portmap, AS_IO, 8, amaticmg_state )
	ADDRESS_MAP_GLOBAL_MASK(0xff)
	AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write)
	AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write)
	AM_RANGE(0x40, 0x41) AM_DEVWRITE_LEGACY("ymsnd", ym3812_w)
	AM_RANGE(0x60, 0x60) AM_DEVWRITE("crtc", mc6845_device, address_w)
	AM_RANGE(0x61, 0x61) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)
	AM_RANGE(0x80, 0x80) AM_WRITE(unk80_w)
	AM_RANGE(0xc0, 0xc0) AM_WRITE(rombank_w)
//  AM_RANGE(0x00, 0x00) AM_DEVREADWRITE_LEGACY("ppi8255_2", ppi8255_r, ppi8255_w)
//  AM_RANGE(0x00, 0x00) AM_DEVWRITE_LEGACY("dac1", dac_signed_w)
//  AM_RANGE(0x00, 0x00) AM_DEVWRITE_LEGACY("dac2", dac_signed_w)

ADDRESS_MAP_END

static ADDRESS_MAP_START( amaticmg2_portmap, AS_IO, 8, amaticmg_state )
	ADDRESS_MAP_GLOBAL_MASK(0xff)
//	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write)
	AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write)
	AM_RANGE(0x40, 0x41) AM_DEVWRITE_LEGACY("ymsnd", ym3812_w)
	AM_RANGE(0x60, 0x60) AM_DEVWRITE("crtc", mc6845_device, address_w)					// 0e for mg_iii_vger_3.64_v_8309
	AM_RANGE(0x61, 0x61) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)	// 0f for mg_iii_vger_3.64_v_8309
	AM_RANGE(0xc0, 0xc0) AM_WRITE(rombank_w)
	AM_RANGE(0xe6, 0xe6) AM_WRITE(nmi_mask_w)
ADDRESS_MAP_END


/*
    Unknown R/W
    -----------


*/


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

static INPUT_PORTS_START( amaticmg )
	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )          PORT_NAME("Coin 1 (Muenze 1)") PORT_IMPULSE(3)

	PORT_START("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SERVICE2 )       PORT_NAME("Service B (Dienst B") PORT_CODE(KEYCODE_8) PORT_TOGGLE
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN2 )          PORT_NAME("Coin 2 (Muenze 2)")   PORT_IMPULSE(3)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER )          PORT_NAME("Hopper Payout pulse") PORT_IMPULSE(3)      PORT_CODE(KEYCODE_Q)	// Hopper paying pulse
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_GAMBLE_PAYOUT )  PORT_CODE(KEYCODE_W)           // 'Ausgegeben 0 - Hopper Leer' (spent 0 - hopper empty)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_POKER_HOLD3 )	PORT_NAME("Hold 3 (Halten 3)")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_POKER_HOLD2 )	PORT_NAME("Hold 2 (Halten 2)")

	PORT_START("IN2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )			PORT_NAME("Start")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_POKER_CANCEL )	PORT_NAME("Clear / Take (Loeschen)")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_POKER_HOLD1 )	PORT_NAME("Hold 1 (Halten 1)")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SERVICE1 )       PORT_NAME("Service A (Dienst A") PORT_CODE(KEYCODE_7) PORT_TOGGLE
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_GAMBLE_BET )     PORT_NAME("Bet (Setzen) / Half Take")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SERVICE3 )       PORT_NAME("Service C (Dienst C") PORT_CODE(KEYCODE_9) PORT_TOGGLE
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE )        PORT_NAME("Service (Master)")    PORT_CODE(KEYCODE_0)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_POKER_HOLD4 )	PORT_NAME("Hold 4 (Halten 4)")

	PORT_START("IN3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("SW1")
	PORT_DIPNAME( 0x01, 0x01, "DIP1")					PORT_DIPLOCATION("DIP:1")
	PORT_DIPSETTING(    0x01, "Off (Aus)" )
	PORT_DIPSETTING(    0x00, "On (Ein)" )
	PORT_DIPNAME( 0x02, 0x02, "DIP2")					PORT_DIPLOCATION("DIP:2")
	PORT_DIPSETTING(    0x02, "Off (Aus)" )
	PORT_DIPSETTING(    0x00, "On (Ein)" )
	PORT_DIPNAME( 0x04, 0x04, "Coin 1 (Muenzen 1)" )	PORT_DIPLOCATION("DIP:3")
	PORT_DIPSETTING(    0x04, "10" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x08, 0x08, "Coin 2 (Muenzen 2)" )	PORT_DIPLOCATION("DIP:4")
	PORT_DIPSETTING(    0x08, "100" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x10, 0x10, "Jackpot")				PORT_DIPLOCATION("DIP:5")
	PORT_DIPSETTING(    0x10, "Jackpot KZB")
	PORT_DIPSETTING(    0x00, "Jackpot LZB")
	PORT_DIPNAME( 0x20, 0x20, "Fruechtebonus" )			PORT_DIPLOCATION("DIP:6")
	PORT_DIPSETTING(    0x20, "Fruechtebonus Bleibt" )
	PORT_DIPSETTING(    0x00, "Fruechtebonus Clear" )
	PORT_DIPNAME( 0x40, 0x40, "DIP7")					PORT_DIPLOCATION("DIP:7")
	PORT_DIPSETTING(    0x40, "Off (Aus)" )
	PORT_DIPSETTING(    0x00, "On (Ein)" )
	PORT_DIPNAME( 0x80, 0x80, "BH") 					PORT_DIPLOCATION("DIP:8")
	PORT_DIPSETTING(    0x80, "BH Dreifach")
	PORT_DIPSETTING(    0x00, "BH Normal")
INPUT_PORTS_END


/************************************
*         Graphics Layouts          *
************************************/

static const gfx_layout charlayout_4bpp =
{
	4,8,
	RGN_FRAC(1,2),
	4,
	{ RGN_FRAC(0,2), RGN_FRAC(0,2) + 4, RGN_FRAC(1,2), RGN_FRAC(1,2) + 4 },
	{ 3, 2, 1, 0 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*4*2
};

static const gfx_layout charlayout_6bpp =
{
	4,8,
	RGN_FRAC(1,3),
	6,
	{ RGN_FRAC(0,3) + 0, RGN_FRAC(0,3) + 4, RGN_FRAC(1,3) + 0, RGN_FRAC(1,3) + 4,RGN_FRAC(2,3) + 0, RGN_FRAC(2,3) + 4, },
	{ 3, 2, 1, 0 },	/* tiles are x-flipped */
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*4*2
};


/************************************
*    Graphics Decode Information    *
************************************/

static GFXDECODE_START( amaticmg )
	GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout_4bpp, 0, 0x20 )
GFXDECODE_END

static GFXDECODE_START( amaticmg2 )
	GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout_6bpp, 0, 0x10000/0x40 )
GFXDECODE_END

/************************************
*          Sound Interface          *
************************************/

static const ym3812_interface ym3812_config =
{
	0
};


/************************************
*          CRTC Interface           *
************************************/

static const mc6845_interface mc6845_intf =
{
	"screen",   /* screen we are acting on */
	4,          /* number of pixels per video memory address */
	NULL,       /* before pixel update callback */
	NULL,       /* row update callback */
	NULL,       /* after pixel update callback */
	DEVCB_NULL, /* callback for display state changes */
	DEVCB_NULL, /* callback for cursor state changes */
	DEVCB_NULL, /* HSYNC callback */
	DEVCB_NULL, /* VSYNC callback */
	NULL        /* update address callback */
};


/************************************
*      PPI 8255 (x3) Interface      *
************************************/

static I8255A_INTERFACE( ppi8255_intf_0 )
{
	DEVCB_INPUT_PORT("IN0"),		/* Port A read */
	DEVCB_NULL,						/* Port A write */
	DEVCB_INPUT_PORT("IN1"),		/* Port B read */
	DEVCB_NULL,						/* Port B write */
	DEVCB_INPUT_PORT("IN2"),		/* Port C read */
	DEVCB_NULL						/* Port C write */
};

static I8255A_INTERFACE( ppi8255_intf_1 )
{
	DEVCB_NULL,						/* Port A read */
	DEVCB_HANDLER(out_a_w),			/* Port A write */
	DEVCB_INPUT_PORT("SW1"),		/* Port B read */
	DEVCB_NULL,						/* Port B write */
	DEVCB_NULL,						/* Port C read */
	DEVCB_HANDLER(out_c_w)			/* Port C write */
};

static MACHINE_START( amaticmg )
{
	UINT8 *rombank = machine.root_device().memregion("maincpu")->base();

	machine.root_device().membank("bank1")->configure_entries(0, 0x10, &rombank[0x8000], 0x4000);
}

static MACHINE_RESET( amaticmg )
{
	amaticmg_state *state = machine.driver_data<amaticmg_state>();

	state->membank("bank1")->set_entry(0);
	state->m_nmi_mask = 0;
}

/************************************
*          Machine Drivers          *
************************************/

static MACHINE_CONFIG_START( amaticmg, amaticmg_state )
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", Z80, CPU_CLOCK)		/* WRONG! */
	MCFG_CPU_PROGRAM_MAP(amaticmg_map)
	MCFG_CPU_IO_MAP(amaticmg_portmap)
	MCFG_CPU_VBLANK_INT("screen", nmi_line_pulse) // no NMI mask?

//  MCFG_NVRAM_ADD_0FILL("nvram")

	/* 3x 8255 */
	MCFG_I8255A_ADD( "ppi8255_0", ppi8255_intf_0 )
	MCFG_I8255A_ADD( "ppi8255_1", ppi8255_intf_1 )
//  MCFG_PPI8255_ADD( "ppi8255_2", ppi8255_intf[2] )

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_SIZE(512, 256)
	MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1)
	MCFG_SCREEN_UPDATE_STATIC(amaticmg)

	MCFG_MC6845_ADD("crtc", MC6845, CRTC_CLOCK, mc6845_intf)

	MCFG_GFXDECODE(amaticmg)

	MCFG_PALETTE_INIT(amaticmg)
	MCFG_PALETTE_LENGTH(0x200)
	MCFG_VIDEO_START(amaticmg)

	MCFG_MACHINE_START(amaticmg)
	MCFG_MACHINE_RESET(amaticmg)

	/* sound hardware */
	MCFG_SPEAKER_STANDARD_MONO("mono")

	MCFG_SOUND_ADD("ymsnd", YM3812, SND_CLOCK)
	MCFG_SOUND_CONFIG(ym3812_config)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

//	MCFG_SOUND_ADD("dac", DAC, 0)   /* Y3014B */
//	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

MACHINE_CONFIG_END


static INTERRUPT_GEN( amaticmg2_irq )
{
	amaticmg_state *state = device->machine().driver_data<amaticmg_state>();

	if(state->m_nmi_mask)
		device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
}


static MACHINE_CONFIG_DERIVED( amaticmg2, amaticmg )

	MCFG_CPU_MODIFY("maincpu")
	MCFG_CPU_IO_MAP(amaticmg2_portmap)
	MCFG_CPU_VBLANK_INT("screen", amaticmg2_irq)

	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_UPDATE_STATIC(amaticmg2)

	MCFG_GFXDECODE(amaticmg2)
	MCFG_PALETTE_INIT(amaticmg2)
	MCFG_PALETTE_LENGTH(0x10000)
MACHINE_CONFIG_END


/************************************
*             Rom Load              *
************************************/

ROM_START( suprstar )
	ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 )

	ROM_REGION( 0x20000, "mainprg", 0 )	/* encrypted program ROM...*/
	ROM_LOAD( "u3.bin",  0x00000, 0x20000, CRC(29bf4a95) SHA1(a73873f7cd1fdf5accc3e79f4619949f261400b8) )

	ROM_REGION( 0x10000, "gfx1", 0 )
	ROM_LOAD( "u10.bin", 0x00000, 0x08000, CRC(6a811c81) SHA1(af01cd9b1ce6aca92df71febb05fe216b18cf42a) )
	ROM_CONTINUE(        0x00000, 0x08000 )
	ROM_LOAD( "u9.bin",  0x08000, 0x08000, CRC(823a736a) SHA1(a5227e3080367736aac1198d9dbb55efc4114624) )
	ROM_CONTINUE(        0x08000, 0x08000 )

	ROM_REGION( 0x0200, "proms", 0 )
	ROM_LOAD( "n82s147a.bin", 0x0000, 0x0200, CRC(dfeabd11) SHA1(21e8bbcf4aba5e4d672e5585890baf8c5bc77c98) )
ROM_END


ROM_START( am_mg24 )
	ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 )

	ROM_REGION( 0x40000, "mainprg", 0 )	/* encrypted program ROM...*/
	ROM_LOAD( "mgi_vger_3.9-i-8201.i6.bin", 0x00000, 0x40000, CRC(9ce159f7) SHA1(101c277d579a69cb03f879288b2cecf838cf1741) )

	ROM_REGION( 0x180000, "gfx1", 0 )
	ROM_LOAD( "multi_2.4_zg1.i17.bin", 0x100000, 0x80000, CRC(4a60a718) SHA1(626991abee768da58e87c7cdfc4fcbae86c6ea2a) )
	ROM_LOAD( "multi_2.4_zg2.i18.bin", 0x080000, 0x80000, CRC(b504e1b8) SHA1(ffa17a2c212eb2fffb89b131868e69430cb41203) )
	ROM_LOAD( "multi_2.4_zg3.i33.bin", 0x000000, 0x80000, CRC(9b66bb4d) SHA1(64035d2028a9b68164c87475a1ec9754453ad572) )

	ROM_REGION( 0x20000/*0x0400*/, "proms", 0 )
	ROM_LOAD( "n82s147a_1.bin", 0x0000, 0x0200, NO_DUMP )
	ROM_LOAD( "n82s147a_2.bin", 0x0200, 0x0200, NO_DUMP )
ROM_END

ROM_START( am_mg3 )
	ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 )

	ROM_REGION( 0x40000, "mainprg", 0 )	/* encrypted program ROM...*/
	ROM_LOAD( "mg_iii_vger_3.5-i-8205.bin", 0x00000, 0x40000, CRC(21d64029) SHA1(d5c3fde02833a96dd7a43481a489bfc4a5c9609d) )

	ROM_REGION( 0x180000, "gfx1", 0 )
	ROM_LOAD( "mg_iii_51_zg1.bin", 0x100000, 0x80000, CRC(84f86874) SHA1(c483a50df6a9a71ddfdf8530a894135f9b852b89) )
	ROM_LOAD( "mg_iii_51_zg2.bin", 0x080000, 0x80000, CRC(4425e535) SHA1(726c322c5d0b391b82e49dd1797ebf0abfa4a65a) )
	ROM_LOAD( "mg_iii_51_zg3.bin", 0x000000, 0x80000, CRC(36d4c0fa) SHA1(20352dbbb2ce2233be0f4f694ddf49b8f5d6a64f) )

	ROM_REGION( 0x20000, "proms", 0 )
	ROM_LOAD( "v.bin", 0x00000, 0x20000, CRC(524767e2) SHA1(03a108494f42365c820fdfbcba9496bda86f3081) )
ROM_END

ROM_START( am_mg3a )
	ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 )

	ROM_REGION( 0x40000, "mainprg", 0 )	/* encrypted program ROM...*/
	ROM_LOAD( "mg_iii_vger_3.64_v_8309.i16", 0x00000, 0x40000, CRC(c54f97c4) SHA1(d5ce91be7332ada304d18d07706e3b98ac0fa74b) )

	ROM_REGION( 0x180000, "gfx1", 0 )
	ROM_LOAD( "mg_iii_51_zg1.i17", 0x100000, 0x80000, CRC(84f86874) SHA1(c483a50df6a9a71ddfdf8530a894135f9b852b89) )
	ROM_LOAD( "mg_iii_51_zg2.i18", 0x080000, 0x80000, CRC(4425e535) SHA1(726c322c5d0b391b82e49dd1797ebf0abfa4a65a) )
	ROM_LOAD( "mg_iii_51_zg3.i19", 0x000000, 0x80000, CRC(36d4c0fa) SHA1(20352dbbb2ce2233be0f4f694ddf49b8f5d6a64f) )

	ROM_REGION( 0x20000, "proms", 0 )
	ROM_LOAD( "iv.i35", 0x00000, 0x20000, CRC(82af7296) SHA1(1a07d6481e0f8fd785be9f1b737182d7e0b84605) )
ROM_END


/************************************
*       Driver Initialization       *
************************************/

static void encf(UINT8 ciphertext, int address, UINT8 &plaintext, int &newaddress)
{
	int aux = address & 0xfff;
	aux = aux ^ (aux>>6);
	aux = ((aux<<6) | (aux>>6)) & 0xfff;
	UINT8 aux2 = BITSWAP8(aux, 9,10,4,1,6,0,7,3);
	aux2 ^= aux2>>4;
	aux2 = (aux2<<4) | (aux2>>4);
	ciphertext ^= ciphertext<<4;
	plaintext = (ciphertext<<4) | (ciphertext>>4);
	plaintext ^= aux2;
	newaddress = (address & ~0xfff) | aux;
}

static void decrypt(running_machine &machine, int key1, int key2)
{
	UINT8 plaintext;
	int newaddress;

	UINT8 *src = machine.root_device().memregion("mainprg")->base();
	UINT8 *dest = machine.root_device().memregion("maincpu")->base();
	int len = machine.root_device().memregion("mainprg")->bytes();

	for (int i = 0; i < len; i++)
	{
		encf(src[i], i, plaintext, newaddress);
		dest[newaddress^(key1^(key1>>6))] = plaintext^key2;
	}
}

static DRIVER_INIT( ama8000_1_x )
{
	decrypt(machine, 0x4d1, 0xf5);
}

static DRIVER_INIT( ama8000_2_i )
{
	decrypt(machine, 0x436, 0x55);
}

static DRIVER_INIT( ama8000_2_v )
{
	decrypt(machine, 0x703, 0xaf);
}


/************************************
*           Game Drivers            *
************************************/

/*     YEAR  NAME      PARENT  MACHINE    INPUT     INIT         ROT     COMPANY                FULLNAME                      FLAGS                                                                                                        LAYOUT */
GAMEL( 1996, suprstar, 0,      amaticmg,  amaticmg, ama8000_1_x, ROT90, "Amatic Trading GmbH", "Super Stars",                 GAME_IMPERFECT_SOUND,                                                                                        layout_suprstar )
GAME(  2000, am_mg24,  0,      amaticmg2, amaticmg, ama8000_2_i, ROT0,  "Amatic Trading GmbH", "Multi Game I (V.Ger 2.4)",    GAME_IMPERFECT_GRAPHICS | GAME_WRONG_COLORS | GAME_UNEMULATED_PROTECTION | GAME_NO_SOUND | GAME_NOT_WORKING )
GAME(  2000, am_mg3,   0,      amaticmg2, amaticmg, ama8000_2_i, ROT0,  "Amatic Trading GmbH", "Multi Game III (V.Ger 3.5)",  GAME_IMPERFECT_GRAPHICS | GAME_WRONG_COLORS | GAME_UNEMULATED_PROTECTION | GAME_NO_SOUND | GAME_NOT_WORKING )
GAME(  2000, am_mg3a,  0,      amaticmg2, amaticmg, ama8000_2_v, ROT0,  "Amatic Trading GmbH", "Multi Game III (V.Ger 3.64)", GAME_IMPERFECT_GRAPHICS | GAME_WRONG_COLORS | GAME_UNEMULATED_PROTECTION | GAME_NO_SOUND | GAME_NOT_WORKING )