| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | cloneof | romof | MachineGenreId |
| invader4 | midw8080/8080bw.cpp | | no | no | no | yes | Space Invaders Part Four (bootleg of Space Attack II) | 1980 | bootleg | invaders | invaders | Shooter / Gallery |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| spin4.a | 2048 | bb386dfe | cc00f3e4f6ca4c05bae038a24ccdb213fb951cfc | maincpu | 0 | good | no | | |
| spin4.b | 2048 | 63afa11d | d8cedfa010a49237e31f6ebaed35134cb1c3ce68 | maincpu | 800 | good | no | | |
| spin4.c | 2048 | 22b0317c | 8fd037bf5f89a7bcb06042697410566d5180912a | maincpu | 1000 | good | no | | |
| spin4.d | 2048 | 9102fd68 | 3523e69314844fcd1863b1e9a9d7fcebe9ee174b | maincpu | 1800 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Intel 8080 | 1996800 |
| audio | soundboard:mono | Speaker | |
| audio | soundboard:snsnd | TI SN76477 CSG | |
| audio | soundboard:discrete | Discrete Sound | |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| joy | 1 | 1 | 2 | no | | | | | | | |
| joy | 2 | 1 | 2 | no | | | | | | | |
|
device_ref
| name |
| i8080 |
| screen |
| watchdog |
| mb14241 |
| invaders_audio |
| speaker |
| sn76477 |
| discrete |
|
dipswitch
| name | tag | mask |
| Difficulty | IN0 | 4 |
| Lives | IN2 | 3 |
| Bonus Life | IN2 | 8 |
| Unknown | IN2 | 16 |
| Unknown | IN2 | 32 |
| Unknown | IN2 | 64 |
| Coinage | IN2 | 128 |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| screen | raster | 270 | 260 | 224 | 59.541985 | 4992000 | 320 | 0 | 260 | 262 | 0 | 224 | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| good | good | supported | no | no | no | no | |
|
input
| players | coins | service | tilt |
| 2 | 1 | no | yes |
|
port
| tag |
| :CAB |
| :CONTP1 |
| :CONTP2 |
| :IN0 |
| :IN1 |
| :IN2 |
|
sound
|