| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | romof | cloneof | MachineGenreId |
| ojousan | nichibutsu/nbmj8688.cpp | | no | no | no | yes | Ojousan (Japan 871204) | 1987 | Nichibutsu | | | Tabletop / Mahjong * Mature * |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| 1.4g | 32768 | c0166351 | 656f5ac0846d9e7ee5059947597c5863bb213165 | maincpu | 0 | good | no | | |
| 2.3g | 32768 | 2c264eb2 | eb94a1ef88c499d2f57881d886a206b599441698 | maincpu | 8000 | good | no | | |
| mask.3i | 65536 | 59f355eb | 24826f5a89d8dfc64bc327982b4e9b5afd43368e | voice | 0 | good | no | | |
| mask.2i | 65536 | 6f750500 | 0f958cfb1f3c1846f2f7ae94465b54207c7312ac | voice | 10000 | good | no | | |
| mask.1i | 65536 | 4babcb40 | 4940a9ef210ea2128d562564f251078fc6e28bed | voice | 20000 | good | no | | |
| 3.5a | 131072 | 3bdb9d2a | 01dbe293c455256d82207bd4eed389c118df510b | gfx1 | 100000 | good | no | | |
| 4.6a | 131072 | 72b689b9 | cb3cd6d17ea367dd10cf178a061f709c12bef5cd | gfx1 | 120000 | good | no | | |
| 5.7a | 131072 | e32e5e8a | 7e1bd1b4c2c30ec30b784b824e05123909360287 | gfx1 | 140000 | good | no | | |
| 6.8a | 131072 | f313337a | 374ed1a6da4ab3143f2f25dbb35930e6595dc32a | gfx1 | 160000 | good | no | | |
| 7.9a | 131072 | c2428e95 | 4bd35e3f0c6c7dece18e168d2c6261e64c051569 | gfx1 | 180000 | good | no | | |
| 8.10a | 131072 | f04c6003 | 2fd81cc1e1f91630ef5767ba20be3fac9e131370 | gfx1 | 1a0000 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Zilog Z80 | 5000000 |
| audio | speaker | Speaker | |
| audio | psg | AY-3-8910A PSG | 1250000 |
| audio | dac | 8-Bit R-2R DAC | |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| mahjong | 1 | 26 | | no | | | | | | | |
| mahjong | 2 | 26 | | no | | | | | | | |
|
device_ref
| name |
| z80 |
| nb1413m3 |
| nvram |
| screen |
| palette |
| speaker |
| ay8910 |
| dac_8bit_r2r |
|
dipswitch
| name | tag | mask |
| Difficulty | DSWA | 7 |
| RENCHAN after TENPAIed RYUKYOKU | DSWA | 8 |
| Character Display Test | DSWA | 16 |
| Unused | DSWA | 32 |
| Unused | DSWA | 64 |
| Unused | DSWA | 128 |
| Service Mode | SYSTEM | 16 |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| screen | raster | 0 | 512 | 224 | 60.000000 | | | | | | | | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| good | good | supported | no | no | no | no | |
|
input
| players | coins | service | tilt |
| 2 | 2 | no | no |
|
port
| tag |
| :DSWA |
| :DSWB |
| :KEY0 |
| :KEY1 |
| :KEY2 |
| :KEY3 |
| :KEY4 |
| :KEY5 |
| :KEY6 |
| :KEY7 |
| :KEY8 |
| :KEY9 |
| :SYSTEM |
|
sound
|