Ojousan (Japan 871204)
Game Information
| manufacturer | Nichibutsu |
| year | 1987 |
| Cloned by | ojousanm |
| genre | Mature |
| downloads | 60 |
Screenshots
Download Details
| split set | ojousan.zip 317.91KiB |
| merged set | ojousan.7z 309.99KiB |
| standalone set | ojousan.7z 283.48KiB |
Game Details
Arcade Video game published 37 years ago:
Ojousan (c) 1987 Nichibutsu.
Mahjong with beautiful 'prizes'.
- TECHNICAL -
Main CPU : Zilog Z80 (@ 5 Mhz)
Sound Chips : General Instrument AY8910 (@ 1.25 Mhz), DAC (@ 1.25 Mhz)
Screen orientation : Horizontal
Video resolution : 512 x 224 pixels
Screen refresh : 60.00 Hz
Palette Colors : 65536
Player : 2
Control : mahjong keyboard
- TRIVIA -
Ojousan was released in December 1987 in Japan.
Driver Details
| source | nichibutsu/nbmj8688.cpp |
| driver status | good |
| emulation status | good |
| save states | supported |
| channels | 1 |
Screen Details
| display | screen |
| type | raster |
| orientation | horizontal |
| width | 512 |
| height | 224 |
| refresh rate | 60.00hz |
Input Details
| player: | 1 |
| type | mahjong |
| directions | N/A |
| buttons | 26way |
| player: | 2 |
| type | mahjong |
| directions | N/A |
| buttons | 26way |
Chipset Details
| Zilog Z80 | 5.00mhz |
| Speaker | present |
| AY-3-8910A PSG | 1.25mhz |
| 8-Bit R-2R DAC | present |
ROM Details
| name | size | crc |
|---|---|---|
| 1.4g | 32.00KiB | c0166351 |
| 2.3g | 32.00KiB | 2c264eb2 |
| mask.3i | 64.00KiB | 59f355eb |
| mask.2i | 64.00KiB | 6f750500 |
| mask.1i | 64.00KiB | 4babcb40 |
| 3.5a | 128.00KiB | 3bdb9d2a |
| 4.6a | 128.00KiB | 72b689b9 |
| 5.7a | 128.00KiB | e32e5e8a |
| 6.8a | 128.00KiB | f313337a |
| 7.9a | 128.00KiB | c2428e95 |
| 8.10a | 128.00KiB | f04c6003 |