| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | romof | cloneof | MachineGenreId |
| av2mj1bb | nichibutsu/nbmj8991.cpp | | no | no | no | yes | AV2Mahjong No.1 Bay Bridge no Seijo (Japan) | 1991 | Miki Syouji / AV Japan | | | Tabletop / Mahjong * Mature * |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| 1.bin | 65536 | df0f03fb | e6c2d6905b507611782bbd29f4d5fcd378a0a993 | maincpu | 0 | good | no | | |
| 3.bin | 65536 | 0cdc9489 | dfcee760679a893fed98bdb7642889d7491f00a7 | audiocpu | 0 | good | no | | |
| 2.bin | 65536 | 6283a444 | fb6bc100be2af9fca2e47607700aa33dba9b2d5e | audiocpu | 10000 | good | no | | |
| 4.bin | 131072 | 18fe29c3 | 4da8bac188330d142aa55948dc236896a58d480c | gfx1 | 0 | good | no | | |
| 5.bin | 131072 | 0eff4bbf | c1bfbab792ac4b8e26944d759f40059077326a57 | gfx1 | 20000 | good | no | | |
| 6.bin | 131072 | ac351796 | 23aaf79034227febe13defe86a3d5051733cfd3e | gfx1 | 40000 | good | no | | |
| mj-1802.9a | 524288 | e6213f10 | 377399e9cd20fc2055b680eb28d024824161b2ff | gfx1 | 180000 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Zilog Z80 | 3000000 |
| cpu | audiocpu | Zilog Z80 | 4000000 |
| audio | speaker | Speaker | |
| audio | fmsnd | YM3812 OPL2 | 4000000 |
| audio | dac1 | 8-Bit R-2R DAC | |
| audio | dac2 | 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 |
| z80 |
| screen |
| palette |
| speaker |
| generic_latch_8 |
| ym3812 |
| dac_8bit_r2r |
| dac_8bit_r2r |
|
dipswitch
| name | tag | mask |
| Difficulty | DSWA | 7 |
| Coinage | DSWA | 8 |
| Unknown | DSWA | 16 |
| Unknown | DSWA | 32 |
| Video Playback Time | DSWA | 192 |
| Attract mode | DSWB | 3 |
| Unknown | DSWB | 4 |
| Graphic ROM Test | DSWB | 8 |
| Unknown | DSWB | 16 |
| Unknown | DSWB | 32 |
| Unknown | DSWB | 64 |
| Unknown | DSWB | 128 |
| Service Mode | SYSTEM | 16 |
|
disk
| name | merge | sha1 | region | index | writable | status | optional |
| av2mj1bb | | | vhs | 0 | no | nodump | no |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| screen | raster | 0 | 640 | 240 | 60.000000 | | | | | | | | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| preliminary | preliminary | 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
|