| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | romof | cloneof | MachineGenreId |
| bigboard | xerox/xerox820.cpp | | no | no | no | yes | Big Board | 1980 | Digital Research Computers | | | Computer / Single Board |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| bigboard.u67 | 2048 | 5a85a228 | d51a2cbd0aae80315bda9530275aabfe8305364e | u46 | 0 | good | no | | |
| bigboard.u73 | 2048 | 10bf0d81 | 7ec73670a4d9d6421a5d6a4c4edc8b7c87923f6c | chargen | 0 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | u46 | Zilog Z80 | 2500000 |
| cpu | kb:i8748 | Intel 8048 | 6000000 |
| audio | u109:0:sa400l:flopsndout | Speaker | |
| audio | u109:0:sa400l:floppysound | Floppy sound | 44100 |
| audio | u109:1:sa400l:flopsndout | Speaker | |
| audio | u109:1:sa400l:floppysound | Floppy sound | 44100 |
| audio | mono | Speaker | |
| audio | beeper | Beep | 950 |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| keyboard | | 74 | | no | | | | | | | |
|
device
| type | tag | interface | fixed_image | mandatory |
| floppydisk | u109:0:sa400l | floppy_5_25 | | |
| floppydisk | u109:1:sa400l | floppy_5_25 | | |
| quickload | quickload | | | |
|
device_ref
| name |
| z80 |
| screen |
| gfxdecode |
| palette |
| z80pio |
| z80pio |
| z80ctc |
| z80ctc_channel |
| z80ctc_channel |
| z80ctc_channel |
| z80ctc_channel |
| fd1771 |
| floppy_connector |
| floppy_525_sssd |
| speaker |
| flopsnd |
| floppy_connector |
| floppy_525_sssd |
| speaker |
| flopsnd |
| z80sio |
| z80sio_channel |
| z80sio_channel |
| rs232 |
| rs232 |
| com8116 |
| x820kb |
| i8048 |
| software_list |
| quickload |
| speaker |
| beep |
| timer |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| screen | raster | 0 | 560 | 240 | 58.759615 | 10694250 | 700 | 0 | 560 | 260 | 0 | 240 | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| preliminary | preliminary | unsupported | no | no | no | no | |
|
input
| players | coins | service | tilt |
| 1 | | no | no |
|
port
| tag |
| :kb:Y0 |
| :kb:Y1 |
| :kb:Y10 |
| :kb:Y11 |
| :kb:Y12 |
| :kb:Y13 |
| :kb:Y14 |
| :kb:Y15 |
| :kb:Y2 |
| :kb:Y3 |
| :kb:Y4 |
| :kb:Y5 |
| :kb:Y6 |
| :kb:Y7 |
| :kb:Y8 |
| :kb:Y9 |
|
slot
| name |
| u109:0 |
| u109:1 |
| rs232a |
| rs232b |
|
softwarelist
| tag | name | status | filter |
| flop_list | xerox820 | original | |
|
sound
|