| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | cloneof | romof | MachineGenreId |
| songjang | sega/megadriv_ybox.cpp | | no | no | no | yes | Songjiangyanyi Final | 200? | WAH LAP | | | |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| rom.u5 | 524288 | 3de4aea5 | a4fd0799a6fd86ba3f0c4b4277190f4c332e48d6 | maincpu | 0 | good | no | | |
| rom.u4 | 524288 | dc6cfc29 | e15d6e2187befbbd791c5046cb6d156801095203 | maincpu | 1 | good | no | | |
| rom.u8 | 524288 | d4d2b262 | 2023128b187a8cd1a3f021861da559b5ad48e984 | maincpu | 100000 | good | no | | |
| rom.u7 | 524288 | 1e24f2c9 | 562249b08a8fe317a606c16ce07a8009a0c5418a | maincpu | 100001 | good | no | | |
| rom.u3 | 524288 | 44287ab4 | 42de2010e73c036a2a0e01c9dd3c1c8aef1a54a1 | oki | 0 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Motorola MC68000 | 7670453 |
| cpu | genesis_snd_z80 | Zilog Z80 | 3579545 |
| audio | gen_vdp | Sega 315-5313 Megadrive VDP | 53693175 |
| audio | gen_vdp:snsnd | Sega VDP PSG | 3579545 |
| audio | speaker | Speaker | |
| audio | ymsnd | YM2612 OPN2 | 7670453 |
| audio | oki | OKI MSM6295 ADPCM | 1000000 |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| joy | 1 | 3 | 8 | no | | | | | | | |
| joy | 2 | 3 | 8 | no | | | | | | | |
|
device_ref
| name |
| m68000 |
| timer |
| sega315_5313 |
| palette |
| segapsg |
| palette |
| palette |
| palette |
| screen |
| z80 |
| ipt_merge_any_hi |
| megadrive_io_port |
| megadrive_io_port |
| megadrive_io_port |
| speaker |
| ym2612 |
| okim6295 |
|
dipswitch
| name | tag | mask |
| Coinage | DSW1 | 7 |
| Lives | DSW1 | 56 |
| Difficulty | DSW1 | 192 |
| Service Mode | DSW2 | 1 |
| Unknown | DSW2 | 2 |
| Unknown | DSW2 | 4 |
| Unknown | DSW2 | 8 |
| Unknown | DSW2 | 16 |
| Unknown | DSW2 | 32 |
| Unknown | DSW2 | 64 |
| Unknown | DSW2 | 128 |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| megadriv | raster | 0 | 256 | 224 | 59.922743 | | | | | | | | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| imperfect | good | unsupported | no | no | no | no | |
|
feature
| type | status | overall |
| graphics | imperfect | |
|
input
| players | coins | service | tilt |
| 2 | 1 | no | no |
|
port
| tag |
| :DSW1 |
| :DSW2 |
| :P1 |
| :P2 |
| :PAD1 |
| :PAD2 |
| :UNK |
|
sound
|