summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/video/namcos22.c
blob: b0cd3093e5081bb55ffa11e0247109110e1d42aa (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
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
/**
 * video hardware for Namco System22
 *
 * todo:
 *
 * - fog bugfixes
 *
 * - SPOT
 *
 * - sprite
 *          xy offset
 *          clipping to window
 *          eliminate garbage (air combat)
 *
 *
 *******************************
czram[0] = 1fff 1fdf 1fbf 1f9f 1f7f 1f5f 1f3f 1f1f 1eff 1edf 1ebf 1e9f 1e7f 1e5f 1e3f 1e1f 1dff 1ddf 1dbf 1d9f 1d7f 1d5f 1d3f 1d1f 1cff 1cdf 1cbf 1c9f 1c7f 1c5f 1c3f 1c1f 1bff 1bdf 1bbf 1b9f 1b7f 1b5f 1b3f 1b1f 1aff 1adf 1abf 1a9f 1a7f 1a5f 1a3f 1a1f 19ff 19df 19bf 199f 197f 195f 193f 191f 18ff 18df 18bf 189f 187f 185f 183f 181f 17ff 17df 17bf 179f 177f 175f 173f 171f 16ff 16df 16bf 169f 167f 165f 163f 161f 15ff 15df 15bf 159f 157f 155f 153f 151f 14ff 14df 14bf 149f 147f 145f 143f 141f 13ff 13df 13bf 139f 137f 135f 133f 131f 12ff 12df 12bf 129f 127f 125f 123f 121f 11ff 11df 11bf 119f 117f 115f 113f 111f 10ff 10df 10bf 109f 107f 105f 103f 101f 0fff 0fdf 0fbf 0f9f 0f7f 0f5f 0f3f 0f1f 0eff 0edf 0ebf 0e9f 0e7f 0e5f 0e3f 0e1f 0dff 0ddf 0dbf 0d9f 0d7f 0d5f 0d3f 0d1f 0cff 0cdf 0cbf 0c9f 0c7f 0c5f 0c3f 0c1f 0bff 0bdf 0bbf 0b9f 0b7f 0b5f 0b3f 0b1f 0aff 0adf 0abf 0a9f 0a7f 0a5f 0a3f 0a1f 09ff 09df 09bf 099f 097f 095f 093f 091f 08ff 08df 08bf 089f 087f 085f 083f 081f 07ff 07df 07bf 079f 077f 075f 073f 071f 06ff 06df 06bf 069f 067f 065f 063f 061f 05ff 05df 05bf 059f 057f 055f 053f 051f 04ff 04df 04bf 049f 047f 045f 043f 041f 03ff 03df 03bf 039f 037f 035f 033f 031f 02ff 02df 02bf 029f 027f 025f 023f 021f 01ff 01df 01bf 019f 017f 015f 013f 011f 00ff 00df 00bf 009f 007f 005f 003f 001f
czram[1] = 0000 0000 0000 0001 0002 0003 0005 0007 0009 000b 000e 0011 0014 0017 001b 001f 0023 0027 002c 0031 0036 003b 0041 0047 004d 0053 005a 0061 0068 006f 0077 007f 0087 008f 0098 00a1 00aa 00b3 00bd 00c7 00d1 00db 00e6 00f1 00fc 0107 0113 011f 012b 0137 0144 0151 015e 016b 0179 0187 0195 01a3 01b2 01c1 01d0 01df 01ef 01ff 020f 021f 0230 0241 0252 0263 0275 0287 0299 02ab 02be 02d1 02e4 02f7 030b 031f 0333 0347 035c 0371 0386 039b 03b1 03c7 03dd 03f3 040a 0421 0438 044f 0467 047f 0497 04af 04c8 04e1 04fa 0513 052d 0547 0561 057b 0596 05b1 05cc 05e7 0603 061f 063b 0657 0674 0691 06ae 06cb 06e9 0707 0725 0743 0762 0781 07a0 07bf 07df 07ff 081f 083f 0860 0881 08a2 08c3 08e5 0907 0929 094b 096e 0991 09b4 09d7 09fb 0a1f 0a43 0a67 0a8c 0ab1 0ad6 0afb 0b21 0b47 0b6d 0b93 0bba 0be1 0c08 0c2f 0c57 0c7f 0ca7 0ccf 0cf8 0d21 0d4a 0d73 0d9d 0dc7 0df1 0e1b 0e46 0e71 0e9c 0ec7 0ef3 0f1f 0f4b 0f77 0fa4 0fd1 0ffe 102b 1059 1087 10b5 10e3 1112 1141 1170 119f 11cf 11ff 122f 125f 1290 12c1 12f2 1323 1355 1387 13b9 13eb 141e 1451 1484 14b7 14eb 151f 1553 1587 15bc 15f1 1626 165b 1691 16c7 16fd 1733 176a 17a1 17d8 180f 1847 187f 18b7 18ef 1928 1961 199a 19d3 1a0d 1a47 1a81 1abb 1af6 1b31 1b6c 1ba7 1be3 1c1f 1c5b 1c97 1cd4 1d11 1d4e 1d8b 1dc9 1e07 1e45 1e83 1ec2 1f01 1f40 1f7f 1fbf 1fff
czram[2] = 003f 007f 00be 00fd 013c 017b 01b9 01f7 0235 0273 02b0 02ed 032a 0367 03a3 03df 041b 0457 0492 04cd 0508 0543 057d 05b7 05f1 062b 0664 069d 06d6 070f 0747 077f 07b7 07ef 0826 085d 0894 08cb 0901 0937 096d 09a3 09d8 0a0d 0a42 0a77 0aab 0adf 0b13 0b47 0b7a 0bad 0be0 0c13 0c45 0c77 0ca9 0cdb 0d0c 0d3d 0d6e 0d9f 0dcf 0dff 0e2f 0e5f 0e8e 0ebd 0eec 0f1b 0f49 0f77 0fa5 0fd3 1000 102d 105a 1087 10b3 10df 110b 1137 1162 118d 11b8 11e3 120d 1237 1261 128b 12b4 12dd 1306 132f 1357 137f 13a7 13cf 13f6 141d 1444 146b 1491 14b7 14dd 1503 1528 154d 1572 1597 15bb 15df 1603 1627 164a 166d 1690 16b3 16d5 16f7 1719 173b 175c 177d 179e 17bf 17df 17ff 181f 183f 185e 187d 189c 18bb 18d9 18f7 1915 1933 1950 196d 198a 19a7 19c3 19df 19fb 1a17 1a32 1a4d 1a68 1a83 1a9d 1ab7 1ad1 1aeb 1b04 1b1d 1b36 1b4f 1b67 1b7f 1b97 1baf 1bc6 1bdd 1bf4 1c0b 1c21 1c37 1c4d 1c63 1c78 1c8d 1ca2 1cb7 1ccb 1cdf 1cf3 1d07 1d1a 1d2d 1d40 1d53 1d65 1d77 1d89 1d9b 1dac 1dbd 1dce 1ddf 1def 1dff 1e0f 1e1f 1e2e 1e3d 1e4c 1e5b 1e69 1e77 1e85 1e93 1ea0 1ead 1eba 1ec7 1ed3 1edf 1eeb 1ef7 1f02 1f0d 1f18 1f23 1f2d 1f37 1f41 1f4b 1f54 1f5d 1f66 1f6f 1f77 1f7f 1f87 1f8f 1f96 1f9d 1fa4 1fab 1fb1 1fb7 1fbd 1fc3 1fc8 1fcd 1fd2 1fd7 1fdb 1fdf 1fe3 1fe7 1fea 1fed 1ff0 1ff3 1ff5 1ff7 1ff9 1ffb 1ffc 1ffd 1ffe 1fff 1fff 1fff
czram[3] = 0000 001f 003f 005f 007f 009f 00bf 00df 00ff 011f 013f 015f 017f 019f 01bf 01df 01ff 021f 023f 025f 027f 029f 02bf 02df 02ff 031f 033f 035f 037f 039f 03bf 03df 03ff 041f 043f 045f 047f 049f 04bf 04df 04ff 051f 053f 055f 057f 059f 05bf 05df 05ff 061f 063f 065f 067f 069f 06bf 06df 06ff 071f 073f 075f 077f 079f 07bf 07df 07ff 081f 083f 085f 087f 089f 08bf 08df 08ff 091f 093f 095f 097f 099f 09bf 09df 09ff 0a1f 0a3f 0a5f 0a7f 0a9f 0abf 0adf 0aff 0b1f 0b3f 0b5f 0b7f 0b9f 0bbf 0bdf 0bff 0c1f 0c3f 0c5f 0c7f 0c9f 0cbf 0cdf 0cff 0d1f 0d3f 0d5f 0d7f 0d9f 0dbf 0ddf 0dff 0e1f 0e3f 0e5f 0e7f 0e9f 0ebf 0edf 0eff 0f1f 0f3f 0f5f 0f7f 0f9f 0fbf 0fdf 0fff 101f 103f 105f 107f 109f 10bf 10df 10ff 111f 113f 115f 117f 119f 11bf 11df 11ff 121f 123f 125f 127f 129f 12bf 12df 12ff 131f 133f 135f 137f 139f 13bf 13df 13ff 141f 143f 145f 147f 149f 14bf 14df 14ff 151f 153f 155f 157f 159f 15bf 15df 15ff 161f 163f 165f 167f 169f 16bf 16df 16ff 171f 173f 175f 177f 179f 17bf 17df 17ff 181f 183f 185f 187f 189f 18bf 18df 18ff 191f 193f 195f 197f 199f 19bf 19df 19ff 1a1f 1a3f 1a5f 1a7f 1a9f 1abf 1adf 1aff 1b1f 1b3f 1b5f 1b7f 1b9f 1bbf 1bdf 1bff 1c1f 1c3f 1c5f 1c7f 1c9f 1cbf 1cdf 1cff 1d1f 1d3f 1d5f 1d7f 1d9f 1dbf 1ddf 1dff 1e1f 1e3f 1e5f 1e7f 1e9f 1ebf 1edf 1eff 1f1f 1f3f 1f5f 1f7f 1f9f 1fbf 1fdf

CZ (NORMAL) 00810000: 00000000 00000000 75550000 00e40000
CZ (OFFSET) 00810000: 7fff8000 7fff8000 75550000 00e40000
CZ (OFF)    00810000: 00000000 00000000 31110000 00e40000

SPOT TABLE test
03F282: 13FC 0000 0082 4011        move.b  #$0, $824011.l
03F28A: 13FC 0000 0082 4015        move.b  #$0, $824015.l
03F292: 13FC 0080 0082 400D        move.b  #$80, $82400d.l
03F29A: 13FC 0001 0082 400E        move.b  #$1, $82400e.l
03F2A2: 13FC 0001 0082 4021        move.b  #$1, $824021.l
03F2AA: 33FC 4038 0080 0000        move.w  #$4038, $800000.l
03F2B2: 06B9 0000 0001 00E0 AB08   addi.l  #$1, $e0ab08.l
*/

#include "driver.h"
#include "eminline.h"
#include "video/rgbutil.h"
#include "namcos22.h"
#include "video/poly.h"

// uncomment this line to render everything as quads
//#define RENDER_AS_QUADS

static int mbSuperSystem22; /* used to conditionally support Super System22-specific features */
static int mbSpotlightEnable;
static UINT16 *namcos22_czram[4];

static poly_manager *poly;

static UINT8
nthbyte( const UINT32 *pSource, int offs )
{
	pSource += offs/4;
	return (pSource[0]<<((offs&3)*8))>>24;
}

static UINT16
nthword( const UINT32 *pSource, int offs )
{
	pSource += offs/2;
	return (pSource[0]<<((offs&1)*16))>>16;
}

static struct
{
	int target;
	int rFogColor;
	int gFogColor;
	int bFogColor;
	int rFogColor2;
	int gFogColor2;
	int bFogColor2;
	int rBackColor;
	int gBackColor;
	int bBackColor;
	int rFadeColor;
	int gFadeColor;
	int bFadeColor;
	int fadeFactor;
	int spot_translucency;
	int poly_translucency;
	int text_translucency;
	int palBase;
} mixer;

static void
UpdateVideoMixer( void )
{
	poly_wait(poly, "UpdateVideoMixer");
	memset( &mixer, 0, sizeof(mixer) );
	if( mbSuperSystem22 )
	{
/*
           0 1 2 3  4 5 6 7  8 9 a b  c d e f 10       14       18       1c
00824000: ffffff00 00000000 0000007f 00ff0000 1000ff00 0f000000 00ff007f 00010007 // time crisis
00824000: ffffff00 00000000 1830407f 00800000 0000007f 0f000000 0000037f 00010007 // trans sprite
00824000: ffffff00 00000000 3040307f 00000000 0080007f 0f000000 0000037f 00010007 // trans poly
00824000: ffffff00 00000000 1800187f 00800000 0080007f 0f000000 0000037f 00010007 // trans poly(2)
00824000: ffffff00 00000000 1800187f 00000000 0000007f 0f800000 0000037f 00010007 // trans text
*/
		mixer.rFogColor         = nthbyte( namcos22_gamma, 0x05 );
		mixer.gFogColor         = nthbyte( namcos22_gamma, 0x06 );
		mixer.bFogColor         = nthbyte( namcos22_gamma, 0x07 );
		mixer.rBackColor        = nthbyte( namcos22_gamma, 0x08 );
		mixer.gBackColor        = nthbyte( namcos22_gamma, 0x09 );
		mixer.bBackColor        = nthbyte( namcos22_gamma, 0x0a );
		mixer.spot_translucency = nthbyte( namcos22_gamma, 0x0d );
		mixer.poly_translucency = nthbyte( namcos22_gamma, 0x11 );
		mixer.text_translucency = nthbyte( namcos22_gamma, 0x15 );
		mixer.rFadeColor        = nthbyte( namcos22_gamma, 0x16 );
		mixer.gFadeColor        = nthbyte( namcos22_gamma, 0x17 );
		mixer.bFadeColor        = nthbyte( namcos22_gamma, 0x18 );
		mixer.fadeFactor        = nthbyte( namcos22_gamma, 0x19 );
		mixer.target            = nthbyte( namcos22_gamma, 0x1a );
		mixer.palBase           = nthbyte( namcos22_gamma, 0x1b );
	}
	else
	{
/*
90020000: 4f030000 7f00007f 4d4d4d42 0c00c0c0
90020010: c0010001 00010000 00000000 00000000
90020080: 00010101 01010102 00000000 00000000
900200c0: 00000000 00000000 00000000 03000000
90020100: fff35000 00000000 00000000 00000000
90020180: ff713700 00000000 00000000 00000000
90020200: ff100000 00000000 00000000 00000000
*/
		mixer.palBase     = 0x7f;
		mixer.target      = 0x7;//nthbyte( namcos22_gamma, 0x0002 )*256 + nthbyte( namcos22_gamma, 0x0003 );
		mixer.rFadeColor  = nthbyte( namcos22_gamma, 0x0011 )*256 + nthbyte( namcos22_gamma, 0x0012 );
		mixer.gFadeColor  = nthbyte( namcos22_gamma, 0x0013 )*256 + nthbyte( namcos22_gamma, 0x0014 );
		mixer.bFadeColor  = nthbyte( namcos22_gamma, 0x0015 )*256 + nthbyte( namcos22_gamma, 0x0016 );

		mixer.fadeFactor  = 0x100 - mixer.rFadeColor; // hack
		mixer.rFadeColor  = 0;
		mixer.gFadeColor  = 0;
		mixer.bFadeColor  = 0;

		mixer.rFogColor   = nthbyte( namcos22_gamma, 0x0100 );
		mixer.rFogColor2  = nthbyte( namcos22_gamma, 0x0101 );
		mixer.gFogColor   = nthbyte( namcos22_gamma, 0x0180 );
		mixer.gFogColor2  = nthbyte( namcos22_gamma, 0x0181 );
		mixer.bFogColor   = nthbyte( namcos22_gamma, 0x0200 );
		mixer.bFogColor2  = nthbyte( namcos22_gamma, 0x0201 );

/*  +0x0002.w   Fader Enable(?) (0: disabled)
 *  +0x0011.w   Display Fader (R) (0x0100 = 1.0)
 *  +0x0013.w   Display Fader (G) (0x0100 = 1.0)
 *  +0x0015.w   Display Fader (B) (0x0100 = 1.0)
 *  +0x0100.b   Fog1 Color (R) (world fogging)
 *  +0x0101.b   Fog2 Color (R) (used for heating of brake-disc on RV1)
 *  +0x0180.b   Fog1 Color (G)
 *  +0x0181.b   Fog2 Color (G)
 *  +0x0200.b   Fog1 Color (B)
 *  +0x0201.b   Fog2 Color (B)
 */
	}
}

INLINE UINT8
Clamp256( int v )
{
   if( v<0 )
   {
      v = 0;
   }
   else if( v>255 )
   {
      v = 255;
   }
   return v;
} /* Clamp256 */

#ifdef MAME_DEBUG
static void Dump( const address_space *space, FILE *f, unsigned addr1, unsigned addr2, const char *name );
#endif

static struct
{
   int cx,cy;
   rectangle scissor;
} mClip;

static void
poly3d_Clip( float vx, float vy, float vw, float vh )
{
   int cx = 320+vx;
   int cy = 240+vy;
   mClip.cx = cx;
   mClip.cy = cy;
   mClip.scissor.min_x = cx + vw;
   mClip.scissor.min_y = cy + vh;
   mClip.scissor.max_x = cx - vw;
   mClip.scissor.max_y = cy - vh;
   if( mClip.scissor.min_x<0 )   mClip.scissor.min_x = 0;
   if( mClip.scissor.min_y<0 )   mClip.scissor.min_y = 0;
   if( mClip.scissor.max_x>639 ) mClip.scissor.max_x = 639;
   if( mClip.scissor.max_y>479 ) mClip.scissor.max_y = 479;
}

static void
poly3d_NoClip( void )
{
   mClip.cx = 640/2;
   mClip.cy = 480/2;
   mClip.scissor.min_x = 0;
   mClip.scissor.max_x = 639;
   mClip.scissor.min_y = 0;
   mClip.scissor.max_x = 479;
}

typedef struct
{
   float x,y,z;
   int u,v; /* 0..0xfff */
   int bri; /* 0..0xff */
} Poly3dVertex;

#define MIN_Z (10.0f)

typedef struct
{
	float x,y;
	float u,v,i,z;
} vertex;

typedef struct
{
	float x;
	float u,v,i,z;
} edge;

#define SWAP(A,B) { const void *temp = A; A = B; B = temp; }

static UINT16 *mpTextureTileMap16;
static UINT8 *mpTextureTileMapAttr;
static UINT8 *mpTextureTileData;
static UINT8 mXYAttrToPixel[16][16][16];

INLINE unsigned texel( unsigned x, unsigned y )
{
	unsigned offs = ((y&0xfff0)<<4)|((x&0xff0)>>4);
	unsigned tile = mpTextureTileMap16[offs];
	return mpTextureTileData[(tile<<8)|mXYAttrToPixel[mpTextureTileMapAttr[offs]][x&0xf][y&0xf]];
} /* texel */



typedef struct _poly_extra_data poly_extra_data;
struct _poly_extra_data
{
	rgbint fogColor;
	rgbint fadeColor;
	const pen_t *pens;
	int bn;
	UINT16 flags;
	int cmode;
	int fogFactor;
	int fadeFactor;
	const UINT8 *source;		/* sprites */
	int z;
	int alpha;
	int prioverchar;
	int line_modulo;
};


static void renderscanline_uvi_full(void *dest, INT32 scanline, const poly_extent *extent, const void *extradata, int threadid)
{
	float z = extent->param[0].start;
	float u = extent->param[1].start;
	float v = extent->param[2].start;
	float i = extent->param[3].start;
	float dz = extent->param[0].dpdx;
	float du = extent->param[1].dpdx;
	float dv = extent->param[2].dpdx;
	float di = extent->param[3].dpdx;
	bitmap_t *bitmap = dest;
	const poly_extra_data *extra = extradata;
	int bn = extra->bn * 0x1000;
	const pen_t *pens = extra->pens;
	int fogFactor = 0xff - extra->fogFactor;
	int fadeFactor = 0xff - extra->fadeFactor;
	int transFactor = 0xff;
	rgbint fogColor = extra->fogColor;
	rgbint fadeColor = extra->fadeColor;
	int penmask, penshift;
	int prioverchar;
	const UINT8 *pCharPri = BITMAP_ADDR8(priority_bitmap, scanline, 0);
	UINT32 *pDest = BITMAP_ADDR32(bitmap, scanline, 0);
	int x;

	if (extra->cmode & 4)
	{
		prioverchar = 0;
		pens += 0xec + ((extra->cmode & 8) << 1);
		penmask = 0x03;
		penshift = 2 * ~(extra->cmode & 3);
	}
	else if (extra->cmode & 2)
	{
		prioverchar = 0;
		pens += 0xe0 + ((extra->cmode & 8) << 1);
		penmask = 0x0f;
		penshift = 4 * ~(extra->cmode & 1);
	}
	else if (extra->cmode & 1)
	{
		transFactor = 0xff - mixer.poly_translucency;
		prioverchar = 1;
		penmask = 0xff;
		penshift = 0;
	}
	else
	{
		prioverchar = 0;
		penmask = 0xff;
		penshift = 0;
	}

	if (prioverchar)
	{
		for( x=extent->startx; x<extent->stopx; x++ )
		{
			float ooz = 1.0f / z;
			int pen = texel((int)(u * ooz),bn+(int)(v*ooz));
			int shade = i*ooz;
			rgbint rgb;

			rgb_to_rgbint(&rgb, pens[(pen >> penshift) & penmask]);
			rgbint_scale_and_clamp(&rgb, shade << 2);

			if( fogFactor != 0xff )
				rgbint_blend(&rgb, &fogColor, fogFactor);

			if( fadeFactor != 0xff )
				rgbint_blend(&rgb, &fadeColor, fadeFactor);

			if( transFactor != 0xff )
			{
				rgbint dest;
				rgb_to_rgbint(&dest, pDest[x]);
				rgbint_blend(&rgb, &dest, transFactor);
			}

			pDest[x] = rgbint_to_rgb(&rgb);

			u += du;
			v += dv;
			i += di;
			z += dz;
		}
	}
	else
	{
		for( x=extent->startx; x<extent->stopx; x++ )
		{
			if( pCharPri[x]==0 )
			{
				float ooz = 1.0f / z;
				int pen = texel((int)(u * ooz),bn+(int)(v*ooz));
				int shade = i*ooz;
				rgbint rgb;

				rgb_to_rgbint(&rgb, pens[(pen >> penshift) & penmask]);
				rgbint_scale_and_clamp(&rgb, shade << 2);

				if( fogFactor != 0xff )
					rgbint_blend(&rgb, &fogColor, fogFactor);

				if( fadeFactor != 0xff )
					rgbint_blend(&rgb, &fadeColor, fadeFactor);

				pDest[x] = rgbint_to_rgb(&rgb);
			}

			u += du;
			v += dv;
			i += di;
			z += dz;
		}
	}
} /* renderscanline_uvi_full */

static void poly3d_DrawQuad(running_machine *machine, bitmap_t *bitmap, int textureBank, int color, Poly3dVertex pv[4], UINT16 flags, int direct, int cmode )
{
	poly_extra_data *extra;
	poly_vertex v[4], clipv[6];
	int clipverts;
	int vertnum;

	/* non-direct case: project and z-clip */
	if (!direct)
	{
		for (vertnum = 0; vertnum < 4; vertnum++)
		{
			v[vertnum].x = pv[vertnum].x;
			v[vertnum].y = pv[vertnum].y;
			v[vertnum].p[0] = pv[vertnum].z;
			v[vertnum].p[1] = pv[vertnum].u;
			v[vertnum].p[2] = pv[vertnum].v;
			v[vertnum].p[3] = pv[vertnum].bri;
		}
		clipverts = poly_zclip_if_less(4, v, clipv, 4, MIN_Z);
		if (clipverts < 3)
			return;
		assert(clipverts <= ARRAY_LENGTH(clipv));
		for (vertnum = 0; vertnum < clipverts; vertnum++)
		{
			float ooz = 1.0f / clipv[vertnum].p[0];
			clipv[vertnum].x = mClip.cx + clipv[vertnum].x * ooz;
			clipv[vertnum].y = mClip.cy - clipv[vertnum].y * ooz;
			clipv[vertnum].p[0] = ooz;
			clipv[vertnum].p[1] = (clipv[vertnum].p[1] + 0.5f) * ooz;
			clipv[vertnum].p[2] = (clipv[vertnum].p[2] + 0.5f) * ooz;
			clipv[vertnum].p[3] = (clipv[vertnum].p[3] + 0.5f) * ooz;
		}
	}

	/* direct case: don't clip, and treat pv->z as 1/z */
	else
	{
		clipverts = 4;
		for (vertnum = 0; vertnum < 4; vertnum++)
		{
			float ooz = pv[vertnum].z;
			clipv[vertnum].x = mClip.cx + pv[vertnum].x;
			clipv[vertnum].y = mClip.cy - pv[vertnum].y;
			clipv[vertnum].p[0] = ooz;
			clipv[vertnum].p[1] = (pv[vertnum].u + 0.5f) * ooz;
			clipv[vertnum].p[2] = (pv[vertnum].v + 0.5f) * ooz;
			clipv[vertnum].p[3] = (pv[vertnum].bri + 0.5f) * ooz;
		}
	}

	extra = poly_get_extra_data(poly);

	extra->pens = &machine->pens[(color&0x7f)<<8];
	extra->bn = textureBank;
	extra->flags = flags;
	extra->cmode = cmode;
	extra->fogFactor = 0;
	extra->fadeFactor = 0;

	if (mixer.target&1)
	{
		extra->fadeFactor = mixer.fadeFactor;
		rgb_comp_to_rgbint(&extra->fadeColor, mixer.rFadeColor, mixer.gFadeColor, mixer.bFadeColor);
	}

	if( mbSuperSystem22 )
	{
		if( !(color&0x80) )
		{
			int cz = flags>>8;
			static const int cztype_remap[4] = { 3,1,2,0 };
			int cztype = flags&3;
			if( nthword(namcos22_czattr,4)&(0x4000>>(cztype*4)) )
			{
				int fogDelta = (INT16)nthword(namcos22_czattr, cztype);
				int fogDensity = fogDelta + namcos22_czram[cztype_remap[cztype]][cz];
				//          if( fogDelta == 0x8000 ) fogDelta = -0x7fff;
				//cz = Clamp256(cz+fogDelta);
				if( fogDensity<0x0000 )
				{
					fogDensity = 0x0000;
				}
				else if( fogDensity>0x1fff )
				{
					fogDensity = 0x1fff;
				}
				extra->fogFactor = fogDensity >> 5;
				rgb_comp_to_rgbint(&extra->fogColor, mixer.rFogColor, mixer.gFogColor, mixer.bFogColor);
			}
		}
	}

#ifdef RENDER_AS_QUADS
	poly_render_quad_fan(poly, bitmap, &mClip.scissor, renderscanline_uvi_full, 4, clipverts, clipv);
#else
	poly_render_triangle_fan(poly, bitmap, &mClip.scissor, renderscanline_uvi_full, 4, clipverts, clipv);
#endif
}

static void renderscanline_sprite(void *destbase, INT32 scanline, const poly_extent *extent, const void *extradata, int threadid)
{
	int x_index = extent->param[0].start * 65536.0f;
	int y_index = extent->param[1].start * 65536.0f;
	int dx = extent->param[0].dpdx * 65536.0f;
	const poly_extra_data *extra = extradata;
	bitmap_t *destmap = destbase;
	const pen_t *pal = extra->pens;
	int prioverchar = extra->prioverchar;
	int z = extra->z;
	int alpha = extra->alpha;
	UINT8 *source = (UINT8 *)extra->source + (y_index>>16) * extra->line_modulo;
	UINT32 *dest = BITMAP_ADDR32(destmap, scanline, 0);
	const UINT8 *pCharPri = BITMAP_ADDR8(priority_bitmap, scanline, 0);
	int x;

	int bFogEnable = 0;
	INT16 fogDelta = 0;
	int fadeEnable = (mixer.target&2) && mixer.fadeFactor;

	if( mbSuperSystem22 )
	{
		fogDelta = nthword(namcos22_czattr, 0 );
		bFogEnable = nthword(namcos22_czattr,4)&0x4000; /* ? */
	}
	else
	{
		bFogEnable = 0;
	}

	for( x=extent->startx; x<extent->stopx; x++ )
	{
		int pen = source[x_index>>16];
		if( pen != 0xff )
		{
			if( pCharPri[x]==0 || prioverchar )
			{
				UINT32 color = pal[pen];
				int r = color>>16;
				int g = (color>>8)&0xff;
				int b = color&0xff;
				if( bFogEnable && z!=0xffff )
				{
					int zc = Clamp256(fogDelta + z);
					UINT16 fogDensity = namcos22_czram[3][zc];
					if( fogDensity>0 )
					{
						int fogDensity2 = 0x2000 - fogDensity;
						r = (r*fogDensity2 + fogDensity*mixer.rFogColor)>>13;
						g = (g*fogDensity2 + fogDensity*mixer.gFogColor)>>13;
						b = (b*fogDensity2 + fogDensity*mixer.bFogColor)>>13;
					}
				}
				if( fadeEnable )
				{
					int fade2 = 0x100-mixer.fadeFactor;
					r = (r*fade2+mixer.fadeFactor*mixer.rFadeColor)>>8;
					g = (g*fade2+mixer.fadeFactor*mixer.gFadeColor)>>8;
					b = (b*fade2+mixer.fadeFactor*mixer.bFadeColor)>>8;
				}
				color = (r<<16)|(g<<8)|b;
				color = alpha_blend_r32(dest[x], color, alpha);
				color&=0xffffff;
				dest[x] = color;
			}
		}
		x_index += dx;
	}
}


static void
mydrawgfxzoom(
	bitmap_t *dest_bmp,const gfx_element *gfx,
	UINT32 code,UINT32 color,int flipx,int flipy,int sx,int sy,
	const rectangle *clip,
	int scalex, int scaley, int z, int prioverchar, int alpha )
{
	int sprite_screen_height = (scaley*gfx->height+0x8000)>>16;
	int sprite_screen_width = (scalex*gfx->width+0x8000)>>16;
	if (sprite_screen_width && sprite_screen_height && gfx)
	{
		float fsx = sx;
		float fsy = sy;
		float fwidth = gfx->width;
		float fheight = gfx->height;
		float fsw = sprite_screen_width;
		float fsh = sprite_screen_height;
		poly_extra_data *extra;
		poly_vertex vert[4];

		vert[0].x = fsx;
		vert[0].y = fsy;
		vert[0].p[0] = flipx ? fwidth : 0;
		vert[0].p[1] = flipy ? fheight : 0;
		vert[1].x = fsx + fsw;
		vert[1].y = fsy;
		vert[1].p[0] = flipx ? 0 : fwidth;
		vert[1].p[1] = flipy ? fheight : 0;
		vert[2].x = fsx + fsw;
		vert[2].y = fsy + fsh;
		vert[2].p[0] = flipx ? 0 : fwidth;
		vert[2].p[1] = flipy ? 0 : fheight;
		vert[3].x = fsx;
		vert[3].y = fsy + fsh;
		vert[3].p[0] = flipx ? fwidth : 0;
		vert[3].p[1] = flipy ? 0 : fheight;

		extra = poly_get_extra_data(poly);
		extra->z = z;
		extra->alpha = alpha;
		extra->prioverchar = prioverchar;
		extra->line_modulo = gfx->line_modulo;
		extra->pens = &gfx->machine->pens[gfx->color_base + gfx->color_granularity * (color % gfx->total_colors)];
		extra->source = gfx_element_get_data(gfx, code % gfx->total_elements);
#ifdef RENDER_AS_QUADS
		poly_render_quad_fan(poly, dest_bmp, clip, renderscanline_sprite, 2, 4, &vert[0]);
#else
		poly_render_triangle_fan(poly, dest_bmp, clip, renderscanline_sprite, 2, 4, &vert[0]);
#endif
	}
} /* mydrawgfxzoom */

static void
ApplyGamma( running_machine *machine, bitmap_t *bitmap )
{
	int x,y;
	if( mbSuperSystem22 )
	{ /* super system 22 */
#ifdef LSB_FIRST
#define XORPAT 0x3
#else
#define XORPAT 0x0
#endif
		const UINT8 *rlut = (const UINT8 *)&namcos22_gamma[0x100/4];
		const UINT8 *glut = (const UINT8 *)&namcos22_gamma[0x200/4];
		const UINT8 *blut = (const UINT8 *)&namcos22_gamma[0x300/4];
		for( y=0; y<bitmap->height; y++ )
		{
			UINT32 *dest = BITMAP_ADDR32(bitmap, y, 0);
			for( x=0; x<bitmap->width; x++ )
			{
				int rgb = dest[x];
				int r = rlut[XORPAT^((rgb>>16)&0xff)];
				int g = glut[XORPAT^((rgb>>8)&0xff)];
				int b = blut[XORPAT^(rgb&0xff)];
				dest[x] = (r<<16)|(g<<8)|b;
			}
		}
	}
	else
	{ /* system 22 */
		const UINT8 *rlut = 0x000+(const UINT8 *)memory_region(machine, "user1");
		const UINT8 *glut = 0x100+rlut;
		const UINT8 *blut = 0x200+rlut;
		for( y=0; y<bitmap->height; y++ )
		{
			UINT32 *dest = BITMAP_ADDR32(bitmap, y, 0);
			for( x=0; x<bitmap->width; x++ )
			{
				int rgb = dest[x];
				int r = rlut[(rgb>>16)&0xff];
				int g = glut[(rgb>>8)&0xff];
				int b = blut[rgb&0xff];
				dest[x] = (r<<16)|(g<<8)|b;
			}
		}
	}
} /* ApplyGamma */

static void
poly3d_Draw3dSprite( bitmap_t *bitmap, gfx_element *gfx, int tileNumber, int color, int sx, int sy, int width, int height, int translucency, int zc, UINT32 pri )
{
   int flipx = 0;
   int flipy = 0;
   rectangle clip;
   clip.min_x = 0;
   clip.min_y = 0;
   clip.max_x = 640-1;
   clip.max_y = 480-1;
   mydrawgfxzoom(
      bitmap,
      gfx,
      tileNumber,
      color,
      flipx, flipy,
      sx, sy,
      &clip,
      (width<<16)/32,
      (height<<16)/32,
      zc, pri, 0xff - translucency );
}

#define DSP_FIXED_TO_FLOAT( X ) (((INT16)(X))/(float)0x7fff)
#define SPRITERAM_SIZE (0x9b0000-0x980000)
#define CGRAM_SIZE 0x1e000
#define NUM_CG_CHARS ((CGRAM_SIZE*8)/(64*16)) /* 0x3c0 */

/* 16 bit access to DSP RAM */
static UINT16 namcos22_dspram_bank;
static UINT16 mUpperWordLatch;

static int mbDSPisActive;

/* modal rendering properties */
static INT32 mAbsolutePriority;
static INT32 mObjectShiftValue22;

static UINT16 mPrimitiveID; /* 3d primitive to render */

static float mViewMatrix[4][4];

static void
matrix3d_Multiply( float A[4][4], float B[4][4] )
{
	float temp[4][4];
	int row,col;

	for( row=0;row<4;row++ )
	{
		for(col=0;col<4;col++)
		{
			float sum = 0.0f;
			int i;
			for( i=0; i<4; i++ )
			{
				sum += A[row][i]*B[i][col];
			}
			temp[row][col] = sum;
		}
	}
	memcpy( A, temp, sizeof(temp) );
} /* matrix3d_Multiply */

static void
matrix3d_Identity( float M[4][4] )
{
	int r,c;

	for( r=0; r<4; r++ )
	{
		for( c=0; c<4; c++ )
		{
			M[r][c] = (r==c)?1.0:0.0;
		}
	}
} /* matrix3d_Identity */

static void
TransformPoint( float *vx, float *vy, float *vz, float m[4][4] )
{
	float x = *vx;
	float y = *vy;
	float z = *vz;
	*vx = m[0][0]*x + m[1][0]*y + m[2][0]*z + m[3][0];
	*vy = m[0][1]*x + m[1][1]*y + m[2][1]*z + m[3][1];
	*vz = m[0][2]*x + m[1][2]*y + m[2][2]*z + m[3][2];
}

static void
TransformNormal( float *nx, float *ny, float *nz, float m[4][4] )
{
	float x = *nx;
	float y = *ny;
	float z = *nz;
	*nx = m[0][0]*x + m[1][0]*y + m[2][0]*z;
	*ny = m[0][1]*x + m[1][1]*y + m[2][1]*z;
	*nz = m[0][2]*x + m[1][2]*y + m[2][2]*z;
}

#define MAX_LIT_SURFACES 32
static UINT8 mLitSurfaceInfo[MAX_LIT_SURFACES];
static INT32 mSurfaceNormalFormat;

static unsigned mLitSurfaceCount;
static unsigned mLitSurfaceIndex;

static int mPtRomSize;
static const UINT8 *mpPolyH;
static const UINT8 *mpPolyM;
static const UINT8 *mpPolyL;

static struct
{
	float zoom, vx, vy, vw, vh;
	float lx,ly,lz; /* unit vector for light direction */
	int ambient; /* 0.0..1.0 */
	int power;	/* 0.0..1.0 */
} mCamera;

typedef enum
{
   eSCENENODE_NONLEAF,
   eSCENENODE_QUAD3D,
   eSCENENODE_SPRITE
} SceneNodeType;

#define RADIX_BITS 4
#define RADIX_BUCKETS (1<<RADIX_BITS)
#define RADIX_MASK (RADIX_BUCKETS-1)

struct SceneNode
{
   SceneNodeType type;
   struct SceneNode *nextInBucket;
   union
   {
      struct
      {
         struct SceneNode *next[RADIX_BUCKETS];
      } nonleaf;

      struct
      {
         float vx,vy,vw,vh;
         int textureBank;
         int color;
         int cmode;
         int flags;
         int direct;
         Poly3dVertex v[4];
      } quad3d;

      struct
      {
         int tile, color, pri;
         int flipx, flipy;
			int linkType;
	      int numcols, numrows;
	      int xpos, ypos;
	      int sizex, sizey;
         int translucency;
         int cz;
      } sprite;
   } data;
};
static struct SceneNode mSceneRoot;
static struct SceneNode *mpFreeSceneNode;

static void
FreeSceneNode( struct SceneNode *node )
{
   node->nextInBucket = mpFreeSceneNode;
   mpFreeSceneNode = node;
} /* FreeSceneNode */

static struct SceneNode *
MallocSceneNode( void )
{
   struct SceneNode *node = mpFreeSceneNode;
   if( node )
   { /* use free pool */
      mpFreeSceneNode = node->nextInBucket;
   }
   else
   {
#define SCENE_NODE_POOL_SIZE 64
		struct SceneNode *pSceneNodePool = auto_malloc(sizeof(struct SceneNode)*SCENE_NODE_POOL_SIZE);
		{
			int i;
			for( i=0; i<SCENE_NODE_POOL_SIZE; i++ )
			{
				FreeSceneNode( &pSceneNodePool[i] );
			}
			return MallocSceneNode();
		}
   }
   memset( node, 0, sizeof(*node) );
   return node;
} /* MallocSceneNode */

static struct SceneNode *
NewSceneNode( UINT32 zsortvalue24, SceneNodeType type )
{
   struct SceneNode *node = &mSceneRoot;
   int i;
   for( i=0; i<24; i+=RADIX_BITS )
   {
      int hash = (zsortvalue24>>20)&RADIX_MASK;
      struct SceneNode *next = node->data.nonleaf.next[hash];
      if( !next )
      { /* lazily allocate tree node for this radix */
         next = MallocSceneNode();
         next->type = eSCENENODE_NONLEAF;
         node->data.nonleaf.next[hash] = next;
      }
      node = next;
      zsortvalue24 <<= RADIX_BITS;
   }

   if( node->type == eSCENENODE_NONLEAF )
   { /* first leaf allocation on this branch */
      node->type = type;
      return node;
   }
   else
   {
      struct SceneNode *leaf = MallocSceneNode();
      leaf->type = type;
#if 0
      leaf->nextInBucket = node->nextInBucket;
      node->nextInBucket = leaf;
#else
		/* stable insertion sort */
		leaf->nextInBucket = NULL;
		while( node->nextInBucket )
		{
			node = node->nextInBucket;
		}
		node->nextInBucket = leaf;
#endif
      return leaf;
   }
} /* NewSceneNode */


static void RenderSprite(running_machine *machine, bitmap_t *bitmap, struct SceneNode *node )
{
   int tile = node->data.sprite.tile;
   int col,row;
	int i = 0;
   for( row=0; row<node->data.sprite.numrows; row++ )
   {
      for( col=0; col<node->data.sprite.numcols; col++ )
   	{
         int code = tile;
         if( node->data.sprite.linkType == 0xff )
         {
            code += i;
         }
         else
         {
            code += nthword( &spriteram32[0x800/4], i+node->data.sprite.linkType*4 );
         }
         poly3d_Draw3dSprite(
               bitmap,
               machine->gfx[GFX_SPRITE],
               code,
               node->data.sprite.color,
               node->data.sprite.xpos+col*node->data.sprite.sizex,
               node->data.sprite.ypos+row*node->data.sprite.sizey,
               node->data.sprite.sizex,
               node->data.sprite.sizey,
               node->data.sprite.translucency,
               node->data.sprite.cz,
               node->data.sprite.pri );
      	i++;
      } /* next col */
	} /* next row */
} /* RenderSprite */

static void RenderSceneHelper(running_machine *machine, bitmap_t *bitmap, struct SceneNode *node )
{
   if( node )
   {
      if( node->type == eSCENENODE_NONLEAF )
      {
         int i;
         for( i=RADIX_BUCKETS-1; i>=0; i-- )
         {
            RenderSceneHelper(machine, bitmap, node->data.nonleaf.next[i] );
         }
         FreeSceneNode( node );
      }
      else
      {
         while( node )
         {
            struct SceneNode *next = node->nextInBucket;

            switch( node->type )
            {
            case eSCENENODE_QUAD3D:
               poly3d_Clip(
                  node->data.quad3d.vx,
                  node->data.quad3d.vy,
                  node->data.quad3d.vw,
                  node->data.quad3d.vh );
               poly3d_DrawQuad(machine,
                  bitmap,
                  node->data.quad3d.textureBank,
                  node->data.quad3d.color,
                  node->data.quad3d.v,
                  node->data.quad3d.flags,
                  node->data.quad3d.direct,
                  node->data.quad3d.cmode );
               break;

            case eSCENENODE_SPRITE:
               poly3d_NoClip();
               RenderSprite(machine, bitmap,node );
               break;

            default:
               fatalerror("invalid node->type");
               break;
            }
            FreeSceneNode( node );
            node = next;
         }
      }
   }
} /* RenderSceneHelper */

static void RenderScene(running_machine *machine, bitmap_t *bitmap )
{
   struct SceneNode *node = &mSceneRoot;
   int i;
   for( i=RADIX_BUCKETS-1; i>=0; i-- )
   {
      RenderSceneHelper(machine, bitmap, node->data.nonleaf.next[i] );
      node->data.nonleaf.next[i] = NULL;
   }
   poly3d_NoClip();
	poly_wait(poly, "DrawPolygons");
} /* RenderScene */

static float
DspFloatToNativeFloat( UINT32 iVal )
{
   INT16 mantissa = (INT16)iVal;
   float result = mantissa;//?((float)mantissa):((float)0x10000);
	int exponent = (iVal>>16)&0xff;
	while( exponent<0x2e )
	{
		result /= 2.0;
		exponent++;
	}
	return result;
} /* DspFloatToNativeFloat */

static INT32
GetPolyData( INT32 addr )
{
	INT32 result;
	if( addr<0 || addr>=mPtRomSize )
	{
		return -1; /* HACK */
	}
	result = (mpPolyH[addr]<<16)|(mpPolyM[addr]<<8)|mpPolyL[addr];
	if( result&0x00800000 )
	{
		result |= 0xff000000; /* sign extend */
	}
	return result;
} /* GetPolyData */

UINT32
namcos22_point_rom_r( offs_t offs )
{
	return GetPolyData(offs);
}

UINT32 *namcos22_cgram;
UINT32 *namcos22_textram;
UINT32 *namcos22_polygonram;
UINT32 *namcos22_gamma;
UINT32 *namcos22_vics_data;
UINT32 *namcos22_vics_control;

/*
                         0    2    4    6    8    a    b
                      ^^^^ ^^^^ ^^^^ ^^^^                        cz offset
                                          ^^^^                   target (4==poly)
                                                    ^^^^         ????
         //00810000:  0000 0000 0000 0000 4444 0000 0000 0000 // solitar
         //00810000:  0000 0000 0000 0000 7555 0000 00e4 0000 // normal
         //00810000:  7fff 8000 7fff 8000 7555 0000 00e4 0000 // offset
         //00810000:  0000 0000 0000 0000 3111 0000 00e4 0000 // off
         //00810000:  0004 0004 0004 0004 4444 0000 0000 0000 // out pool
         //00810000:  00a4 00a4 00a4 00a4 4444 0000 0000 0000 // in pool
         //00810000:  ff80 ff80 ff80 ff80 4444 0000 0000 0000 // ending
         //00810000:  ff80 ff80 ff80 ff80 0000 0000 0000 0000 // hs entry
         //00810000:  ff01 ff01 0000 0000 0000 0000 00e4 0000 // alpine racer
*/
UINT32 *namcos22_czattr;

UINT32 *namcos22_tilemapattr;

static UINT8 *dirtypal;

READ32_HANDLER( namcos22_czram_r )
{
   int bank = nthword(namcos22_czattr,0xa/2);
   const UINT16 *czram = namcos22_czram[bank&3];
   return (czram[offset*2]<<16)|czram[offset*2+1];
}

WRITE32_HANDLER( namcos22_czram_w )
{
   int bank = nthword(namcos22_czattr,0xa/2);
   UINT16 *czram = namcos22_czram[bank&3];
   UINT32 dat = (czram[offset*2]<<16)|czram[offset*2+1];
   COMBINE_DATA( &dat );
   czram[offset*2] = dat>>16;
   czram[offset*2+1] = dat&0xffff;
}

static void
InitXYAttrToPixel( void )
{
	unsigned attr,x,y,ix,iy,temp;
	for( attr=0; attr<16; attr++ )
	{
		for( y=0; y<16; y++ )
		{
			for( x=0; x<16; x++ )
			{
				ix = x; iy = y;
				if( attr&4 ) ix = 15-ix;
				if( attr&2 ) iy = 15-iy;
				if( attr&8 ){ temp = ix; ix = iy; iy = temp; }
				mXYAttrToPixel[attr][x][y] = (iy<<4)|ix;
			}
		}
	}
} /* InitXYAttrToPixel */

static void
PatchTexture( void )
{
	int i;
	switch( namcos22_gametype )
	{
		case NAMCOS22_RIDGE_RACER:
		case NAMCOS22_RIDGE_RACER2:
		case NAMCOS22_ACE_DRIVER:
		case NAMCOS22_CYBER_COMMANDO:
			for( i=0; i<0x100000; i++ )
			{
				int tile = mpTextureTileMap16[i];
				int attr = mpTextureTileMapAttr[i];
				if( (attr&0x1)==0 )
				{
					tile = (tile&0x3fff)|0x8000;
					mpTextureTileMap16[i] = tile;
				}
			}
			break;

		default:
			break;
   }
} /* PatchTexture */

void
namcos22_draw_direct_poly( const UINT16 *pSource )
{
   /**
    * word#0:
    *    x--------------- end-of-display-list marker
    *    ----xxxxxxxxxxxx priority (lo)
    *
    * word#1:
    *    ----xxxxxxxxxxxx priority (hi)
    *
    * word#2:
    *    xxxxxxxx-------- PAL (high bit is fog enable)
    *    --------xxxx---- CMODE (color mode for texture unpack)
     *    ------------xxxx BN (texture bank)
    *
    * word#3:
    *    xxxxxxxx-------- ZC
    *    --------------xx depth cueing table select
    *
    * for each vertex:
    *    xxxx xxxx // u,v
     *
    *    xxxx xxxx // sx,sy
     *
    *    xx-- ---- // BRI
     *    --xx xxxx // zpos
     */
	INT32 zsortvalue24 = ((pSource[1]&0xfff)<<12)|(pSource[0]&0xfff);
	struct SceneNode *node = NewSceneNode(zsortvalue24,eSCENENODE_QUAD3D);
	int i;
	node->data.quad3d.flags = ((pSource[3]&0x7f00)*2)|(pSource[3]&3);
	node->data.quad3d.cmode = (pSource[2]&0x00f0)>>4;
	node->data.quad3d.textureBank = pSource[2]&0xf;
	node->data.quad3d.color = (pSource[2]&0xff00)>>8;
	pSource += 4;
	for( i=0; i<4; i++ )
	{
		Poly3dVertex *p = &node->data.quad3d.v[i];

		p->u = pSource[0];
		p->v = pSource[1];
		if( mbSuperSystem22 )
		{
			p->u >>= 4;
			p->v >>= 4;
		}
		p->u &= 0xfff;
		p->v &= 0xfff;

		{
			int mantissa = (INT16)pSource[5];
			float zf = (float)mantissa;
			int exponent = (pSource[4])&0xff;
			if( mantissa )
			{
				while( exponent<0x2e )
				{
					zf /= 2.0;
					exponent++;
				}
				if( mbSuperSystem22 )
					p->z = zf;
				else
					p->z = 1.0f/zf;
			}
			else
			{
				zf = (float)0x10000;
				exponent = 0x40-exponent;
				while( exponent<0x2e )
				{
					zf /= 2.0;
					exponent++;
				}
				p->z = 1.0f/zf;
			}
		}

		p->x = ((INT16)pSource[2]);
		p->y = (-(INT16)pSource[3]);
		p->bri = pSource[4]>>8;
		pSource += 6;
	}
	node->data.quad3d.direct = 1;
	node->data.quad3d.vx = 0;
	node->data.quad3d.vy = 0;
	node->data.quad3d.vw = -320;
	node->data.quad3d.vh = -240;
} /* namcos22_draw_direct_poly */

static void
Prepare3dTexture( void *pTilemapROM, void *pTextureROM )
{
    int i;
    assert( pTilemapROM && pTextureROM );
    { /* following setup is Namco System 22 specific */
	      const UINT8 *pPackedTileAttr = 0x200000 + (UINT8 *)pTilemapROM;
	      UINT8 *pUnpackedTileAttr = auto_malloc(0x080000*2);
      	{
       	   InitXYAttrToPixel();
   	      mpTextureTileMapAttr = pUnpackedTileAttr;
   	      for( i=0; i<0x80000; i++ )
   	      {
   	         *pUnpackedTileAttr++ = (*pPackedTileAttr)>>4;
   	         *pUnpackedTileAttr++ = (*pPackedTileAttr)&0xf;
   	         pPackedTileAttr++;
   	   }
   	   mpTextureTileMap16 = pTilemapROM;
         mpTextureTileData = pTextureROM;
   	   PatchTexture();
      }
   }
} /* Prepare3dTexture */

static void
DrawSpritesHelper(
	bitmap_t *bitmap,
	const rectangle *cliprect,
	const UINT32 *pSource,
	const UINT32 *pPal,
	int num_sprites,
	int deltax,
	int deltay )
{
	int i;
	for( i=0; i<num_sprites; i++ )
	{
		/*
        ----.-x--.----.----.----.----.----.---- hidden?
        ----.--xx.----.----.----.----.----.---- ?
        ----.----.xxxx.xxxx.xxxx.----.----.---- always 0xff0?
        ----.----.----.----.----.--x-.----.---- right justify
        ----.----.----.----.----.---x.----.---- bottom justify
        ----.----.----.----.----.----.x---.---- flipx
        ----.----.----.----.----.----.-xxx.---- numcols
        ----.----.----.----.----.----.----.x--- flipy
        ----.----.----.----.----.----.----.-xxx numrows
        */
		UINT32 attrs = pSource[2];
		if( (attrs&0x04000000)==0 )
		{ /* sprite is not hidden */
			INT32 zcoord = pPal[0];
			int color = pPal[1]>>16;
			int cz = pPal[1]&0xffff;
			UINT32 xypos = pSource[0];
			UINT32 size = pSource[1];
			UINT32 code = pSource[3];
			int xpos = (xypos>>16)-deltax;
			int ypos = (xypos&0xffff)-deltay;
			int sizex = size>>16;
			int sizey = size&0xffff;
			int zoomx = (1<<16)*sizex/0x20;
			int zoomy = (1<<16)*sizey/0x20;
			int flipy = attrs&0x8;
			int numrows = attrs&0x7; /* 0000 0001 1111 1111 0000 0000 fccc frrr */
			int linkType = (attrs&0x00ff0000)>>16;
			int flipx = (attrs>>4)&0x8;
			int numcols = (attrs>>4)&0x7;
			int tile = code>>16;
			int translucency = (code&0xff00)>>8;

			if( numrows==0 )
				numrows = 8;
			if( flipy )
			{
				ypos += sizey*(numrows-1);
				sizey = -sizey;
			}

			if( numcols==0 )
				numcols = 8;
			if( flipx )
			{
				xpos += sizex*(numcols-1);
				sizex = -sizex;
			}

			if( attrs & 0x0200 )
			{ /* right justify */
				xpos -= ((zoomx*numcols*0x20)>>16)-1;
			}
			if( attrs & 0x0100 )
			{ /* bottom justify */
				ypos -= ((zoomy*numrows*0x20)>>16)-1;
			}

			{
				struct SceneNode *node = NewSceneNode(zcoord,eSCENENODE_SPRITE);
				node->data.sprite.tile = tile;
				node->data.sprite.pri = cz&0x80;
				//              node->data.sprite.pri = (color&0x80);
				node->data.sprite.color = color&0x7f;
				node->data.sprite.flipx = flipx;
				node->data.sprite.flipy = flipy;
				node->data.sprite.numcols = numcols;
				node->data.sprite.numrows = numrows;
				node->data.sprite.linkType = linkType;
				node->data.sprite.xpos = xpos;
				node->data.sprite.ypos = ypos;
				node->data.sprite.sizex = sizex;
				node->data.sprite.sizey = sizey;
				node->data.sprite.translucency = translucency;
				node->data.sprite.cz = cz;
			}
		} /* visible sprite */
		pSource += 4;
		pPal += 2;
	}
} /* DrawSpritesHelper */

static void
DrawSprites( bitmap_t *bitmap, const rectangle *cliprect )
{
/*
// time crisis:
00980000: 00060000 000b0053 03000200 03000000
00980010: 00200020 028004ff 032a0509 00000000
00980200: 000007ff 000007ff 000007ff 032a0509
00980210: 000007ff 000007ff 000007ff 000007ff
00980220: 000007ff 000007ff 000007ff 000007ff
00980230: 000007ff 000007ff 05000500 050a050a

// prop normal
00980000: 00060000 00040053 03000200 03000000
00980010: 00200020 028004ff 032a0509 00000000
00980200: 028004ff 032a0509 028004ff 032a0509
00980210: 028004ff 032a0509 028004ff 032a0509
00980220: 028004ff 032a0509 028004ff 032a0509
00980230: 028004ff 032a0509 028004ff 032a0509

//alpine normal / prop test (-48,-43)
00980000: 00060000 00000000 02ff0000 000007ff
00980010: 00200020 000002ff 000007ff 00000000
00980200: 000007ff 000007ff 000007ff 000007ff
00980210: 000007ff 000007ff 000007ff 000007ff
00980220: 000007ff 000007ff 000007ff 000007ff
00980230: 000007ff 000007ff 000007ff 000007ff


        0x980000:   00060000 00010000 02ff0000 000007ff
                    ^^^^                                7 = disable
                             ^^^^                       num sprites

        0x980010:   00200020 000002ff 000007ff 00000000
                    ^^^^^^^^                            character size?
                             ^^^^                       delta xpos?
                                      ^^^^              delta ypos?

        0x980200:   000007ff 000007ff       delta xpos, delta ypos?
        0x980208:   000007ff 000007ff
        0x980210:   000007ff 000007ff
        0x980218:   000007ff 000007ff
        0x980220:   000007ff 000007ff
        0x980228:   000007ff 000007ff
        0x980230:   000007ff 000007ff
        0x980238:   000007ff 000007ff

        //time crisis
        00980200:  000007ff 000007ff 000007ff 032a0509
        00980210:  000007ff 000007ff 000007ff 000007ff
        00980220:  000007ff 000007ff 000007ff 000007ff
        00980230:  000007ff 000007ff 05000500 050a050a

        0x980400:   hzoom table
        0x980600:   vzoom table

        link table:
        0x980800:   0000 0001 0002 0003 ... 03ff

        eight words per sprite:
        0x984000:   010f 007b   xpos, ypos
        0x984004:   0020 0020   size x, size y
        0x984008:   00ff 0311   00ff, chr x;chr y;flip x;flip y
        0x98400c:   0001 0000   sprite code, translucency
        ...

        additional sorting/color data for sprite:
        0x9a0000:   C381 Z (sort)
        0x9a0004:   palette, C381 ZC (depth cueing)
        ...
    */
	int num_sprites = ((spriteram32[0x04/4]>>16)&0x3ff)+1;
	const UINT32 *pSource = &spriteram32[0x4000/4];
	const UINT32 *pPal = &spriteram32[0x20000/4];
	int deltax = spriteram32[0x14/4]>>16;
	int deltay = spriteram32[0x18/4]>>16;
	int enable = spriteram32[0]>>16;

	if( spriteram32[0x14/4] == 0x000002ff &&
	spriteram32[0x18/4] == 0x000007ff )
	{ /* HACK (fixes alpine racer and self test) */
		deltax = 48;
		deltay = 43;
	}

	if( enable==6 /*&& namcos22_gametype!=NAMCOS22_AIR_COMBAT22*/ )
	{
		DrawSpritesHelper( bitmap, cliprect, pSource, pPal, num_sprites, deltax, deltay );
	}

	/* VICS RAM provides two additional banks */
	/*
    0x940000 -x------       sprite chip busy
    0x940018 xxxx----       clr.w   $940018.l

    0x940034 xxxxxxxx       0x3070b0f

    0x940040 xxxxxxxx       sprite attribute size
    0x940048 xxxxxxxx       sprite attribute list baseaddr
    0x940050 xxxxxxxx       sprite color size
    0x940058 xxxxxxxx       sprite color list baseaddr

    0x940060..0x94007c      set#2
    */

	num_sprites = (namcos22_vics_control[0x40/4]&0xffff)/0x10;
	if( num_sprites>=1 )
	{
		pSource = &namcos22_vics_data[(namcos22_vics_control[0x48/4]&0xffff)/4];
		pPal    = &namcos22_vics_data[(namcos22_vics_control[0x58/4]&0xffff)/4];
		DrawSpritesHelper( bitmap, cliprect, pSource, pPal, num_sprites, deltax, deltay );
	}

	num_sprites = (namcos22_vics_control[0x60/4]&0xffff)/0x10;
	if( num_sprites>=1 )
	{
		pSource = &namcos22_vics_data[(namcos22_vics_control[0x68/4]&0xffff)/4];
		pPal    = &namcos22_vics_data[(namcos22_vics_control[0x78/4]&0xffff)/4];
		DrawSpritesHelper( bitmap, cliprect, pSource, pPal, num_sprites, deltax, deltay );
	}
} /* DrawSprites */

static void UpdatePaletteS(running_machine *machine) /* for Super System22 - apply gamma correction and preliminary fader support */
{
	int i;
	for( i=0; i<NAMCOS22_PALETTE_SIZE/4; i++ )
	{
		if( dirtypal[i] )
		{
			int j;
			for( j=0; j<4; j++ )
			{
				int which = i*4+j;
				int r = nthbyte(paletteram32,which+0x00000);
				int g = nthbyte(paletteram32,which+0x08000);
				int b = nthbyte(paletteram32,which+0x10000);
				palette_set_color( machine,which,MAKE_RGB(r,g,b) );
			}
			dirtypal[i] = 0;
		}
	}
} /* UpdatePaletteS */

static void UpdatePalette(running_machine *machine) /* for System22 - ignore gamma/fader effects for now */
{
	int i,j;
	for( i=0; i<NAMCOS22_PALETTE_SIZE/4; i++ )
	{
		if( dirtypal[i] )
		{
			for( j=0; j<4; j++ )
			{
				int which = i*4+j;
				int r = nthbyte(paletteram32,which+0x00000);
				int g = nthbyte(paletteram32,which+0x08000);
				int b = nthbyte(paletteram32,which+0x10000);
				palette_set_color( machine,which,MAKE_RGB(r,g,b) );
			}
			dirtypal[i] = 0;
		}
	}
} /* UpdatePalette */

static tilemap *bgtilemap;

static TILE_GET_INFO( TextTilemapGetInfo )
{
	UINT16 data = nthword( namcos22_textram,tile_index );
	/**
     * x---.----.----.---- blend
    * xxxx.----.----.---- palette select
    * ----.xx--.----.---- flip
    * ----.--xx.xxxx.xxxx code
    */
	SET_TILE_INFO( GFX_CHAR,data&0x03ff,data>>12,TILE_FLIPYX((data&0x0c00)>>10) );
	if( data&0x8000 )
	{
		tileinfo->category = 1;
	}
} /* TextTilemapGetInfo */

READ32_HANDLER( namcos22_textram_r )
{
	return namcos22_textram[offset];
}

WRITE32_HANDLER( namcos22_textram_w )
{
	COMBINE_DATA( &namcos22_textram[offset] );
	tilemap_mark_tile_dirty( bgtilemap, offset*2 );
	tilemap_mark_tile_dirty( bgtilemap, offset*2+1 );
}

static void
DrawTranslucentCharacters( bitmap_t *bitmap, const rectangle *cliprect )
{
	UINT8 alpha = 0xff-mixer.text_translucency; /* ? */
	tilemap_draw( bitmap, cliprect, bgtilemap, TILEMAP_DRAW_ALPHA(alpha)|1, 0 );
}

static void DrawCharacterLayer(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect )
{
	INT32 dx = namcos22_tilemapattr[0]>>16;
	INT32 dy = namcos22_tilemapattr[0]&0xffff;
	/**
    * namcos22_tilemapattr[0x4/4] == 0x006e0000
    * namcos22_tilemapattr[0x8/4] == 0x01ff0000
    * namcos22_tilemapattr[0xe/4] == ?
    */
	bitmap_fill(priority_bitmap,cliprect,0);
	tilemap_set_scrollx( bgtilemap,0, (dx-0x35c)&0x3ff );
	tilemap_set_scrolly( bgtilemap,0, dy&0x3ff );
	tilemap_set_palette_offset( bgtilemap, mixer.palBase*256 );
	tilemap_draw( bitmap, cliprect, bgtilemap, 0/*flags*/, 0x1/*priority*/ ); /* opaque */
} /* DrawCharacterLayer */

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

static int
Cap( int val, int minval, int maxval )
{
   if( val<minval )
   {
      val = minval;
   }
   else if( val>maxval )
   {
      val = maxval;
   }
   return val;
}

#define LSB21 (0x1fffff)
#define LSB18 (0x03ffff)

static INT32
Signed18( UINT32 value )
{
   INT32 offset = value&LSB18;
   if( offset&0x20000 )
   { /* sign extend */
		offset |= ~LSB18;
   }
   return offset;
}

/**
 * @brief render a single quad
 *
 * @param flags
 *     x1.----.----.---- priority over tilemap
 *     --.-xxx.----.---- representative z algorithm?
 *     --.----.-1x-.---- backface cull enable
 *     --.----.----.--1x fog enable?
 *
 *      1163 // sky
 *      1262 // score (front)
 *      1242 // score (hinge)
 *      1243 // ?
 *      1063 // n/a
 *      1243 // various (2-sided?)
 *      1263 // everything else (1-sided?)
 *      1663 // ?
 *
 * @param color
 *      -------- xxxxxxxx unused?
 *      -xxxxxxx -------- palette select
 *      x------- -------- ?
 *
 * @param polygonShiftValue22
 *    0x1fbd0 - sky+sea
 *    0x0c350 - mountins
 *    0x09c40 - boats, surf, road, buildings
 *    0x07350 - guardrail
 *    0x061a8 - red car
 */
static void
BlitQuadHelper(
		bitmap_t *bitmap,
		unsigned color,
		unsigned addr,
		float m[4][4],
		INT32 polygonShiftValue22, /* 22 bits */
		int flags,
		int packetFormat )
{
	int absolutePriority = mAbsolutePriority;
	UINT32 zsortvalue24;
	float zmin = 0.0f;
	float zmax = 0.0f;
	Poly3dVertex v[4];
	int i;
	int bBackFace = 0;

	for( i=0; i<4; i++ )
	{
		Poly3dVertex *pVerTex = &v[i];
		pVerTex->x = GetPolyData(  8+i*3+addr );
		pVerTex->y = GetPolyData(  9+i*3+addr );
		pVerTex->z = GetPolyData( 10+i*3+addr );
		TransformPoint( &pVerTex->x, &pVerTex->y, &pVerTex->z, m );
	} /* for( i=0; i<4; i++ ) */

	if( (v[2].x*((v[0].z*v[1].y)-(v[0].y*v[1].z)))+
		(v[2].y*((v[0].x*v[1].z)-(v[0].z*v[1].x)))+
		(v[2].z*((v[0].y*v[1].x)-(v[0].x*v[1].y))) >= 0 &&

		(v[0].x*((v[2].z*v[3].y)-(v[2].y*v[3].z)))+
		(v[0].y*((v[2].x*v[3].z)-(v[2].z*v[3].x)))+
		(v[0].z*((v[2].y*v[3].x)-(v[2].x*v[3].y))) >= 0 )
	{
		bBackFace = 1;
	}

	/* backface cull one-sided polygons */
	if( bBackFace && (flags&0x0020) )
		return;

	for( i=0; i<4; i++ )
	{
		Poly3dVertex *pVerTex = &v[i];
		int bri;

		pVerTex->u = GetPolyData(  0+i*2+addr );
		pVerTex->v = GetPolyData(  1+i*2+addr );

		if( i==0 || pVerTex->z > zmax ) zmax = pVerTex->z;
		if( i==0 || pVerTex->z < zmin ) zmin = pVerTex->z;

		if( mLitSurfaceCount )
		{
			bri = mLitSurfaceInfo[mLitSurfaceIndex%mLitSurfaceCount];
			if( mSurfaceNormalFormat == 0x6666 )
			{
				if( i==3 )
					mLitSurfaceIndex++;
			}
			else if( mSurfaceNormalFormat == 0x4000 )
				mLitSurfaceIndex++;
			else
				logerror( "unknown normal format: 0x%x\n", mSurfaceNormalFormat );
		} /* pLitSurfaceInfo */
		else if( packetFormat & 0x40 )
			bri = (GetPolyData(i+addr)>>16)&0xff;
		else
			bri = 0x40;
		pVerTex->bri = bri;
	} /* for( i=0; i<4; i++ ) */

	if( zmin<0.0f ) zmin = 0.0f;
	if( zmax<0.0f ) zmax = 0.0f;

	switch( (flags&0x0f00)>>8 )
	{
		case 0:
			zsortvalue24 = (INT32)zmin;
			break;

		case 1:
			zsortvalue24 = (INT32)zmax;
			break;

		case 2:
		default:
			zsortvalue24 = (INT32)((zmin+zmax)/2.0f);
			break;
	}

	/* relative: representative z + shift values
    * 1x.xxxx.xxxxxxxx.xxxxxxxx fixed z value
    * 0x.xx--.--------.-------- absolute priority shift
    * 0-.--xx.xxxxxxxx.xxxxxxxx z-representative value shift
    */
	if( polygonShiftValue22 & 0x200000 )
		zsortvalue24 = polygonShiftValue22 & LSB21;
	else
	{
		zsortvalue24 += Signed18( polygonShiftValue22 );
		absolutePriority += (polygonShiftValue22&0x1c0000)>>18;
	}

	if( mObjectShiftValue22 & 0x200000 )
		zsortvalue24 = mObjectShiftValue22 & LSB21;
	else
	{
		zsortvalue24 += Signed18( mObjectShiftValue22 );
		absolutePriority += (mObjectShiftValue22&0x1c0000)>>18;
	}

	absolutePriority &= 7;
	zsortvalue24 = Cap(zsortvalue24,0,0x1fffff);
	zsortvalue24 |= (absolutePriority<<21);

	{
		struct SceneNode *node = NewSceneNode(zsortvalue24,eSCENENODE_QUAD3D);
		node->data.quad3d.cmode = (v[0].u>>12)&0xf;
		node->data.quad3d.textureBank = (v[0].v>>12)&0xf;
		node->data.quad3d.color = (color>>8)&0xff;

		{
			INT32 cz = (INT32)((zmin+zmax)/2.0f);
			cz = Clamp256(cz/0x2000);
			node->data.quad3d.flags = (cz<<8)|(flags&3);
		}

		for( i=0; i<4; i++ )
		{
			Poly3dVertex *p = &node->data.quad3d.v[i];
			p->x     = v[i].x*mCamera.zoom;
			p->y     = v[i].y*mCamera.zoom;
			p->z     = v[i].z;
			p->u     = v[i].u&0xfff;
			p->v     = v[i].v&0xfff;
			p->bri   = v[i].bri;
		}
		node->data.quad3d.direct = 0;
		node->data.quad3d.vx = mCamera.vx;
		node->data.quad3d.vy = mCamera.vy;
		node->data.quad3d.vw = mCamera.vw;
		node->data.quad3d.vh = mCamera.vh;
	}
} /* BlitQuadHelper */

static void
RegisterNormals( INT32 addr, float m[4][4] )
{
	int i;
	for( i=0; i<4; i++ )
	{
		float nx = DSP_FIXED_TO_FLOAT(GetPolyData(addr+i*3+0));
		float ny = DSP_FIXED_TO_FLOAT(GetPolyData(addr+i*3+1));
		float nz = DSP_FIXED_TO_FLOAT(GetPolyData(addr+i*3+2));
		float dotproduct;

		/* transform normal vector */
		TransformNormal( &nx, &ny, &nz, m );
		dotproduct = nx*mCamera.lx + ny*mCamera.ly + nz*mCamera.lz;
		if( dotproduct<0.0f )
			dotproduct = 0.0f;
		mLitSurfaceInfo[mLitSurfaceCount++] = mCamera.ambient + mCamera.power*dotproduct;
	}
} /* RegisterNormals */

static void
BlitQuads( bitmap_t *bitmap, INT32 addr, float m[4][4], INT32 base )
{
	int numAdditionalNormals = 0;
	int chunkLength = GetPolyData(addr++);
	int finish = addr + chunkLength;

	if( chunkLength>0x100 )
		fatalerror( "bad packet length" );

	while( addr<finish )
	{
		int packetLength = GetPolyData( addr++ );
		int packetFormat = GetPolyData( addr+0 );
		int flags, color, bias;

		/**
        * packetFormat:
        *      800000 final packet in chunk
        *      080000 ?
        *      020000 color word exists?
        *      010000 z-offset word exists?
        *      002000 ?
        *      001000 z-offset word exists?
        *      000400 ?
        *      000080 tex# or UV or CMODE?
        *      000040 use I
        *      000001 ?
        *
        * flags:
        *      1042 (always set)
        *      0c00 depth-cueing mode (brake-disc(2108)=001e43, model font)
        *      0200 usually 1
        *      0100 ?
        *      0040 1 ... polygon palette?
        *      0020 cull backface
        *      0002 ?
        *      0001 ?
        *
        * color:
        *      ff0000 type?
        *      008000 depth-cueing off
        *      007f00 palette#
        */
		switch( packetLength )
		{
			case 0x17:
				/**
                * word 0: opcode (8a24c0)
                * word 1: flags
                * word 2: color
                */
				flags = GetPolyData(addr+1);
				color = GetPolyData(addr+2);
				bias = 0;
				BlitQuadHelper( bitmap,color,addr+3,m,bias,flags,packetFormat );
				break;

			case 0x18:
				/**
                * word 0: opcode (0b3480 for first N-1 quads or 8b3480 for final quad in primitive)
                * word 1: flags
                * word 2: color
                * word 3: depth bias
                */
				flags = GetPolyData(addr+1);
				color = GetPolyData(addr+2);
				bias  = GetPolyData(addr+3);
				BlitQuadHelper( bitmap,color,addr+4,m,bias,flags,packetFormat );
				break;

			case 0x10: /* vertex lighting */
				/*
                333401 (opcode)
                000000  [count] [type]
                000000  000000  007fff // normal vector
                000000  000000  007fff // normal vector
                000000  000000  007fff // normal vector
                000000  000000  007fff // normal vector
                */
				numAdditionalNormals = GetPolyData(addr+2);
				mSurfaceNormalFormat = GetPolyData(addr+3);
				mLitSurfaceCount = 0;
				mLitSurfaceIndex = 0;
				RegisterNormals( addr+4, m );
				break;

			case 0x0d: /* additional normals */
				/*
                300401 (opcode)
                007b09 ffdd04 0004c2
                007a08 ffd968 0001c1
                ff8354 ffe401 000790
                ff84f7 ffdd04 0004c2
                */
				RegisterNormals( addr+1, m );
				break;

			default:
				break;
		}
		addr += packetLength;
	}
} /* BlitQuads */

static void
BlitPolyObject( bitmap_t *bitmap, int code, float M[4][4] )
{
	unsigned addr1 = GetPolyData(code);
	mLitSurfaceCount = 0;
	mLitSurfaceIndex = 0;
	for(;;)
	{
		INT32 addr2 = GetPolyData(addr1++);
		if( addr2<0 )
			break;
		BlitQuads( bitmap, addr2, M, code );
	}
} /* BlitPolyObject */

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

READ32_HANDLER( namcos22_dspram_r )
{
	return namcos22_polygonram[offset];
}

WRITE32_HANDLER( namcos22_dspram_w )
{
	COMBINE_DATA( &namcos22_polygonram[offset] );
}

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

/**
 * master DSP can write directly to render device via port 0xc.
 * This is used for "direct drawn" polygons, and "direct draw from point rom"
 * feature - both opcodes exist in Ridge Racer's display-list processing
 *
 * record format:
 *  header (3 words)
 *      polygonShiftValue22
 *      color
 *      flags
 *
 *  per-vertex data (4*6 words)
 *      u,v
 *      sx,sy
 *      intensity;z.exponent
 *      z.mantissa
 *
 * master DSP can specify 3d objects indirectly (along with view transforms),
 * via the "transmit" PDP opcode.  the "render device" sends quad data to the slave DSP
 * viewspace clipping and projection
 *
 * most "3d object" references are 0x45 and greater.  references less than 0x45 are "special"
 * commands, using a similar point rom format.  the point rom header may point to point ram.
 *
 * slave DSP reads records via port 4
 * its primary purpose is applying lighting calculations
 * the slave DSP forwards draw commands to a "draw device"
 */

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

/**
 * 0xfffd
 * 0x0: transform
 * 0x1
 * 0x2
 * 0x5: transform
 * >=0x45: draw primitive
 */
static void
HandleBB0003( const INT32 *pSource )
{
   /*
        bb0003 or 3b0003

        14.00c8            light.ambient     light.power
        01.0000            ?                 light.dx
        06.5a82            window priority   light.dy
        00.a57e            ?                 light.dz

        c8.0081            vx=200,vy=129
        29.6092            zoom = 772.5625
        1e.95f8 1e.95f8            0.5858154296875   0.5858154296875 // 452
        1e.b079 1e.b079            0.6893463134765   0.6893463134765 // 532
        29.58e8                   711.25 (border? see time crisis)

        7ffe 0000 0000
        0000 7ffe 0000
        0000 0000 7ffe
    */
	mCamera.ambient = pSource[0x1]>>16;
	mCamera.power   = pSource[0x1]&0xffff;

	mCamera.lx       = DSP_FIXED_TO_FLOAT(pSource[0x2]);
	mCamera.ly       = DSP_FIXED_TO_FLOAT(pSource[0x3]);
	mCamera.lz       = DSP_FIXED_TO_FLOAT(pSource[0x4]);

   mAbsolutePriority = pSource[0x3]>>16;
   mCamera.vx      = (INT16)(pSource[5]>>16);
   mCamera.vy      = (INT16)pSource[5];
   mCamera.zoom    = DspFloatToNativeFloat(pSource[6]);
   mCamera.vw      = DspFloatToNativeFloat(pSource[7])*mCamera.zoom;
   mCamera.vh      = DspFloatToNativeFloat(pSource[9])*mCamera.zoom;

	mViewMatrix[0][0] = DSP_FIXED_TO_FLOAT(pSource[0x0c]);
	mViewMatrix[1][0] = DSP_FIXED_TO_FLOAT(pSource[0x0d]);
	mViewMatrix[2][0] = DSP_FIXED_TO_FLOAT(pSource[0x0e]);

	mViewMatrix[0][1] = DSP_FIXED_TO_FLOAT(pSource[0x0f]);
	mViewMatrix[1][1] = DSP_FIXED_TO_FLOAT(pSource[0x10]);
	mViewMatrix[2][1] = DSP_FIXED_TO_FLOAT(pSource[0x11]);

	mViewMatrix[0][2] = DSP_FIXED_TO_FLOAT(pSource[0x12]);
	mViewMatrix[1][2] = DSP_FIXED_TO_FLOAT(pSource[0x13]);
	mViewMatrix[2][2] = DSP_FIXED_TO_FLOAT(pSource[0x14]);

	TransformNormal( &mCamera.lx, &mCamera.ly, &mCamera.lz, mViewMatrix );
} /* HandleBB0003 */

static void
Handle200002( bitmap_t *bitmap, const INT32 *pSource )
{
	if( mPrimitiveID>=0x45 )
	{
		float m[4][4]; /* row major */

		matrix3d_Identity( m );

		m[0][0] = DSP_FIXED_TO_FLOAT(pSource[0x1]);
		m[1][0] = DSP_FIXED_TO_FLOAT(pSource[0x2]);
		m[2][0] = DSP_FIXED_TO_FLOAT(pSource[0x3]);

		m[0][1] = DSP_FIXED_TO_FLOAT(pSource[0x4]);
		m[1][1] = DSP_FIXED_TO_FLOAT(pSource[0x5]);
		m[2][1] = DSP_FIXED_TO_FLOAT(pSource[0x6]);

		m[0][2] = DSP_FIXED_TO_FLOAT(pSource[0x7]);
		m[1][2] = DSP_FIXED_TO_FLOAT(pSource[0x8]);
		m[2][2] = DSP_FIXED_TO_FLOAT(pSource[0x9]);

		m[3][0] = pSource[0xa]; /* xpos */
		m[3][1] = pSource[0xb]; /* ypos */
		m[3][2] = pSource[0xc]; /* zpos */

      matrix3d_Multiply( m, mViewMatrix );
		BlitPolyObject( bitmap, mPrimitiveID, m );
	}
   else if( mPrimitiveID !=0 && mPrimitiveID !=2 )
   {
      logerror( "Handle200002:unk code=0x%x\n", mPrimitiveID );
   }
} /* Handle200002 */

static void
Handle300000( const INT32 *pSource )
{ /* set view transform */
	mViewMatrix[0][0] = DSP_FIXED_TO_FLOAT(pSource[1]);
	mViewMatrix[1][0] = DSP_FIXED_TO_FLOAT(pSource[2]);
	mViewMatrix[2][0] = DSP_FIXED_TO_FLOAT(pSource[3]);

	mViewMatrix[0][1] = DSP_FIXED_TO_FLOAT(pSource[4]);
	mViewMatrix[1][1] = DSP_FIXED_TO_FLOAT(pSource[5]);
	mViewMatrix[2][1] = DSP_FIXED_TO_FLOAT(pSource[6]);

	mViewMatrix[0][2] = DSP_FIXED_TO_FLOAT(pSource[7]);
	mViewMatrix[1][2] = DSP_FIXED_TO_FLOAT(pSource[8]);
	mViewMatrix[2][2] = DSP_FIXED_TO_FLOAT(pSource[9]);
} /* Handle300000 */

static void
Handle233002( const INT32 *pSource )
{ /* set modal rendering options */
   /*
    00233002
       00000000 // zc adjust?
       0003dd00 // z bias adjust
       001fffff // far plane?
       00007fff 00000000 00000000
       00000000 00007fff 00000000
       00000000 00000000 00007fff
       00000000 00000000 00000000
   */
   mObjectShiftValue22 = pSource[2];
} /* Handle233002 */

static void
SimulateSlaveDSP( bitmap_t *bitmap )
{
	const INT32 *pSource = 0x300 + (INT32 *)namcos22_polygonram;
	INT16 len;

	matrix3d_Identity( mViewMatrix );

	if( mbSuperSystem22 )
	{
		pSource += 4; /* FFFE 0400 */
	}
	else
	{
		pSource--;
	}

	for(;;)
	{
		INT16 marker, next;
		mPrimitiveID = *pSource++;
		len  = (INT16)*pSource++;

		switch( len )
		{
		case 0x15:
			HandleBB0003( pSource ); /* define viewport */
			break;

		case 0x10:
			Handle233002( pSource ); /* set modal rendering options */
			break;

		case 0x0a:
			Handle300000( pSource ); /* modify view transform */
			break;

		case 0x0d:
			Handle200002( bitmap, pSource ); /* render primitive */
			break;

		default:
         logerror( "unk 3d data(%d) addr=0x%x!", len, (int)(pSource-(INT32*)namcos22_polygonram) );
         {
            int i;
            for( i=0; i<len; i++ )
            {
               logerror( " %06x", pSource[i]&0xffffff );
            }
            logerror( "\n" );
         }
			return;
		}

		/* hackery! commands should be streamed, not parsed here */
		pSource += len;
		marker = (INT16)*pSource++; /* always 0xffff */
		next   = (INT16)*pSource++; /* link to next command */
		if( (next&0x7fff) != (pSource - (INT32 *)namcos22_polygonram) )
		{ /* end of list */
			break;
		}
	} /* for(;;) */
} /* SimulateSlaveDSP */

static void
DrawPolygons( bitmap_t *bitmap )
{
	if( mbDSPisActive )
	{
		SimulateSlaveDSP( bitmap );
		poly_wait(poly, "DrawPolygons");
	}
} /* DrawPolygons */

void
namcos22_enable_slave_simulation( void )
{
	mbDSPisActive = 1;
}

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

READ32_HANDLER( namcos22_cgram_r )
{
	return namcos22_cgram[offset];
}

WRITE32_HANDLER( namcos22_cgram_w )
{
	COMBINE_DATA( &namcos22_cgram[offset] );
	gfx_element_mark_dirty(space->machine->gfx[GFX_CHAR],offset/32);
}

READ32_HANDLER( namcos22_gamma_r )
{
	return namcos22_gamma[offset];
}

WRITE32_HANDLER( namcos22_gamma_w )
{
	COMBINE_DATA( &namcos22_gamma[offset] );
}

READ32_HANDLER( namcos22_paletteram_r )
{
	return paletteram32[offset];
}

WRITE32_HANDLER( namcos22_paletteram_w )
{
	COMBINE_DATA( &paletteram32[offset] );
	dirtypal[offset&(0x7fff/4)] = 1;
}

static void namcos22_reset(running_machine *machine)
{
	memset(&mSceneRoot, 0, sizeof(mSceneRoot));
	mpFreeSceneNode = NULL;
}

static void namcos22_exit(running_machine *machine)
{
	poly_free(poly);
}

static VIDEO_START( common )
{
	int code;

	bgtilemap = tilemap_create( machine, TextTilemapGetInfo,tilemap_scan_rows,16,16,64,64 );
		tilemap_set_transparent_pen( bgtilemap, 0xf );

	mbDSPisActive = 0;
	memset( namcos22_polygonram, 0xcc, 0x20000 );

	for (code = 0; code < machine->gfx[GFX_TEXTURE_TILE]->total_elements; code++)
		gfx_element_decode(machine->gfx[GFX_TEXTURE_TILE], code);
	Prepare3dTexture(memory_region(machine, "textilemap"), machine->gfx[GFX_TEXTURE_TILE]->gfxdata );
	dirtypal = auto_malloc(NAMCOS22_PALETTE_SIZE/4);
	mPtRomSize = memory_region_length(machine, "pointrom")/3;
	mpPolyL = memory_region(machine, "pointrom");
	mpPolyM = mpPolyL + mPtRomSize;
	mpPolyH = mpPolyM + mPtRomSize;

#ifdef RENDER_AS_QUADS
	poly = poly_alloc(machine, 4000, sizeof(poly_extra_data), POLYFLAG_ALLOW_QUADS);
#else
	poly = poly_alloc(machine, 4000, sizeof(poly_extra_data), 0);
#endif
	add_reset_callback(machine, namcos22_reset);
	add_exit_callback(machine, namcos22_exit);

	gfx_element_set_source(machine->gfx[GFX_CHAR], (UINT8 *)namcos22_cgram);
}

VIDEO_START( namcos22 )
{
   mbSuperSystem22 = 0;
   VIDEO_START_CALL(common);
}

VIDEO_START( namcos22s )
{
   mbSuperSystem22 = 1;
   namcos22_czram[0] = auto_malloc( 0x200 );
   namcos22_czram[1] = auto_malloc( 0x200 );
   namcos22_czram[2] = auto_malloc( 0x200 );
   namcos22_czram[3] = auto_malloc( 0x200 );
   VIDEO_START_CALL(common);
}

VIDEO_UPDATE( namcos22s )
{
	UINT32 bgColor;
	UpdateVideoMixer();
	bgColor = (mixer.rBackColor<<16)|(mixer.gBackColor<<8)|mixer.bBackColor;
	bitmap_fill( bitmap, cliprect , bgColor);
	UpdatePaletteS(screen->machine);
	DrawCharacterLayer(screen->machine, bitmap, cliprect );
	DrawPolygons( bitmap );
	DrawSprites( bitmap, cliprect );
	RenderScene(screen->machine, bitmap );
	DrawTranslucentCharacters( bitmap, cliprect );
	ApplyGamma( screen->machine, bitmap );

#ifdef MAME_DEBUG
   if( input_code_pressed(KEYCODE_D) )
   {
      FILE *f = fopen( "dump.txt", "wb" );
      if( f )
      {
         const address_space *space = cpu_get_address_space(screen->machine->cpu[0], ADDRESS_SPACE_PROGRAM);

         {
            int i,bank;
            for( bank=0; bank<4; bank++ )
            {
               fprintf( f, "czram[%d] =", bank );
               for( i=0; i<256; i++ )
               {
                  fprintf( f, " %04x", namcos22_czram[bank][i] );
               }
               fprintf( f, "\n" );
            }
         }

         Dump(space, f,0x810000, 0x81000f, "cz attr" );
         Dump(space, f,0x820000, 0x8202ff, "unk_ac" );
         Dump(space, f,0x824000, 0x8243ff, "gamma");
         Dump(space, f,0x828000, 0x83ffff, "palette" );
         Dump(space, f,0x8a0000, 0x8a000f, "tilemap_attr");
         Dump(space, f,0x880000, 0x89ffff, "cgram/textram");
         Dump(space, f,0x900000, 0x90ffff, "vics_data");
         Dump(space, f,0x940000, 0x94007f, "vics_control");
         Dump(space, f,0x980000, 0x9affff, "sprite374" );
         Dump(space, f,0xc00000, 0xc1ffff, "polygonram");
         fclose( f );
      }
      while( input_code_pressed(KEYCODE_D) ){}
   }
#endif
	return 0;
}

VIDEO_UPDATE( namcos22 )
{
	UpdateVideoMixer();
	bitmap_fill( bitmap, cliprect , get_black_pen(screen->machine));
	UpdatePalette(screen->machine);
	DrawCharacterLayer(screen->machine, bitmap, cliprect );
	DrawPolygons( bitmap );
	RenderScene(screen->machine, bitmap);
	DrawTranslucentCharacters( bitmap, cliprect );
	ApplyGamma( screen->machine, bitmap );

#ifdef MAME_DEBUG
   if( input_code_pressed(KEYCODE_D) )
   {
      FILE *f = fopen( "dump.txt", "wb" );
      if( f )
      {
         const address_space *space = cpu_get_address_space(screen->machine->cpu[0], ADDRESS_SPACE_PROGRAM);

//         Dump(space, f,0x90000000, 0x90000003, "led?" );
//         Dump(space, f,0x90010000, 0x90017fff, "cz_ram");
//         Dump(space, f,0x900a0000, 0x900a000f, "tilemap_attr");
         Dump(space, f,0x90020000, 0x90027fff, "gamma");
//         Dump(space, f,0x70000000, 0x7001ffff, "polygonram");
         fclose( f );
      }
      while( input_code_pressed(KEYCODE_D) ){}
   }
#endif
	return 0;
}

WRITE16_HANDLER( namcos22_dspram16_bank_w )
{
	COMBINE_DATA( &namcos22_dspram_bank );
}

READ16_HANDLER( namcos22_dspram16_r )
{
	UINT32 value = namcos22_polygonram[offset];
	switch( namcos22_dspram_bank )
	{
	case 0:
		value &= 0xffff;
		break;

	case 1:
		value>>=16;
		break;

	case 2:
		mUpperWordLatch = value>>16;
		value &= 0xffff;
		break;

	default:
		break;
	}
	return (UINT16)value;
} /* namcos22_dspram16_r */

WRITE16_HANDLER( namcos22_dspram16_w )
{
	UINT32 value = namcos22_polygonram[offset];
	UINT16 lo = value&0xffff;
	UINT16 hi = value>>16;
	switch( namcos22_dspram_bank )
	{
	case 0:
		COMBINE_DATA( &lo );
		break;

	case 1:
		COMBINE_DATA( &hi );
		break;

	case 2:
		COMBINE_DATA( &lo );
		hi = mUpperWordLatch;
		break;

	default:
		break;
	}
	namcos22_polygonram[offset] = (hi<<16)|lo;
} /* namcos22_dspram16_w */

#ifdef MAME_DEBUG
static void
Dump( const address_space *space, FILE *f, unsigned addr1, unsigned addr2, const char *name )
{
   unsigned addr;
   fprintf( f, "%s:\n", name );
   for( addr=addr1; addr<=addr2; addr+=16 )
   {
      UINT8 data[16];
      int bHasNonZero = 0;
      int i;
      for( i=0; i<16; i++ )
      {
         data[i] = memory_read_byte(space, addr+i );
         if( data[i] )
         {
            bHasNonZero = 1;
         }
      }
      if( bHasNonZero )
      {
         fprintf( f,"%08x:", addr );
         for( i=0; i<16; i++ )
         {
            if( (i&0x03)==0 )
            {
               fprintf( f, " " );
            }
            fprintf( f, "%02x", data[i] );
         }
         fprintf( f, "\n" );
      }
   }
   fprintf( f, "\n" );
}
#endif

/**
 * 4038 spot enable?
 * 0828 pre-initialization
 * 0838 post-initialization
 **********************************************
 * upload:
 *   #bits data
 *    0010 FEC0
 *    0010 FF10
 *    0004 0004
 *    0004 000E
 *    0003 0007
 *    0002 0002
 *    0002 0003
 *    0001 0001
 *    0001 0001
 *    0001 0000
 *    0001 0001
 *    0001 0001
 *    0001 0000
 *    0001 0000
 *    0001 0000
 *    0001 0001
 **********************************************
 *    0008 00EA // 0x0ff
 *    000A 0364 // 0x3ff
 *    000A 027F // 0x3ff
 *    0003 0005 // 0x007
 *    0001 0001 // 0x001
 *    0001 0001 // 0x001
 *    0001 0001 // 0x001
 **********************************************
 */
WRITE32_HANDLER(namcos22_port800000_w)
{
   /* 00000011011111110000100011111111001001111110111110110001 */
   UINT16 word = data>>16;
   logerror( "%x: C304/C399: 0x%04x\n", cpu_get_previouspc(space->cpu), word );
   if( word == 0x4038 )
   {
      mbSpotlightEnable = 1;
   }
   else
   {
      mbSpotlightEnable = 0;
   }
} /* namcos22_port800000_w */