| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | romof | cloneof | MachineGenreId |
| ma7551t | merit/merit3xx.cpp | | no | no | no | yes | Multi-Action 7551-20-R3T | 199? | Merit | | | MultiGame / Gambling Board |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| u8_7551-20-r3t_1d98.u8 | 32768 | a130ec60 | 7d09faf1c6a5df63890eb22317bb4a5ad55d8b8f | maincpu | 0 | good | no | | |
| u9_7551-20-r3t_8f39.u9 | 32768 | 6758e2f9 | f114bd78e1d940190bc2771d90642dba566d47ed | maincpu | 8000 | good | no | | |
| u10_7551-20-r3t_a43c.u10 | 32768 | 3efb3bb4 | 6b39acecd577eb2f4b44c8421390f4035e5d5d84 | maincpu | 10000 | good | no | | |
| u15_7551-20-r3t_0ff2.u15 | 32768 | 39203dd0 | 885424a7c0bdb85891188ca575c0c3ca3ecca04a | maincpu | 20000 | good | no | | |
| u14_7551-20-r3t_a786.u14 | 32768 | 63baf2a5 | 402f8bac78cdbe6d6df90db3e77bd9e97615ae21 | maincpu | 28000 | good | no | | |
| u13_7551-20-r3t_5443.u13 | 32768 | 88f89dd9 | 0ce29f56f5a3643a2fb204ce2b919bea6f5dd3b5 | maincpu | 30000 | good | no | | |
| u12_7551-20-r3t_4f74.u12 | 32768 | 9b818bb4 | 5f1228f500618d5de93c82dbc9c710651bdb22f6 | maincpu | 38000 | good | no | | |
| u46_dma6_9c9a.u46 | 65536 | 138d1cc7 | 2043fcc580269966031d86dc445e03bddf83a412 | gfx1 | 0 | good | no | | |
| u47_dma6_ed62.u47 | 65536 | 4312f851 | 281f0fdf5ec0519c5fbdf73f2d8d567da626b13e | gfx1 | 10000 | good | no | | |
| u48_dma6_a382.u48 | 65536 | fd256128 | e32da5242a8f0c68074326336938c60991d98fdc | gfx1 | 20000 | good | no | | |
| dallas_ds1225y-150.u7 | 8192 | d7d46736 | 98c7d6905f30e351583c90103aae0ca742ba070f | nvram | 0 | good | no | | |
| dallas_ds1230y-120.u17 | 32768 | 6fcc7313 | 6ee2dd8898e4b567a27ee5b8ed54e0cdc56f9553 | nvram2 | 0 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Zilog Z80 | 5000000 |
| audio | speaker | Speaker | |
| audio | ymsnd | YM2149 SSG | 1843200 |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| gambling | | 12 | | no | | | | | | | |
|
device_ref
| name |
| z80 |
| nvram |
| i8255 |
| i8255 |
| screen |
| hd6845s |
| bt476 |
| ns16550 |
| gfxdecode |
| speaker |
| ym2149 |
|
dipswitch
| name | tag | mask |
| IN1.1 | IN1 | 1 |
| IN1.6 | IN1 | 32 |
| IN1.7 | IN1 | 64 |
| IN2.2 | IN2 | 2 |
| IN2.4 | IN2 | 8 |
| IN2.5 | IN2 | 16 |
| IN2.6 | IN2 | 32 |
| IN2.7 | IN2 | 64 |
| IN2.8 | IN2 | 128 |
| PB | PB | 1 |
| Unknown | PB | 2 |
| Unknown | PB | 4 |
| Unknown | PB | 8 |
| Unknown | PB | 16 |
| Unknown | PB | 32 |
| Unknown | PB | 64 |
| Unknown | PB | 128 |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| screen | raster | 0 | 512 | 256 | 60.125060 | 10000000 | 616 | 0 | 512 | 270 | 0 | 256 | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| preliminary | preliminary | unsupported | no | no | no | no | |
|
feature
| type | status | overall |
| sound | unemulated | |
|
input
| players | coins | service | tilt |
| 1 | 2 | yes | no |
|
port
|
sound
|