| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | romof | cloneof | MachineGenreId |
| mekd4 | motorola/mekd4.cpp | | no | no | no | yes | MEK6802D4 | 1980 | Motorola | | | Computer / Single Board |
|
rom
| name | size | crc | sha1 | region | offset | status | optional | merge | bios |
| d4bugr2.rom | 2048 | 0b80a67d | 20d980767a7a667fe0f8e377bb2c29e297e6c635 | bankdev | e800 | good | no | | |
| d4bugkpd.rom | 4096 | 1fdf414a | 3c8883a6ee0ae89398d9be5a5843db4c3b20f7fd | bankdev | f000 | good | no | | |
| mcm6674p.chr | 1024 | 1c22088a | b5f0bd0cfdec0cd5c1cb764506bef3c17d6af0eb | chargen | 0 | good | no | | |
| d4map00.rom | 1024 | 7e676444 | 4f8a7443da509561be958786f9bd72eac3969a89 | rommap | 0 | good | no | | |
|
chip
| type | tag | name | clock |
| cpu | maincpu | Motorola MC6809 | 3579545 |
| audio | mono | Speaker | |
| audio | cassette | Cassette | |
| audio | rs232:terminal:bell | Speaker | |
| audio | rs232:terminal:beeper | Beep | 2000 |
|
configuration
| name | tag | mask |
| RS232 CTS | RS232_CTS_ROUTE | 1 |
| RS232 DCD | RS232_DCD_ROUTE | 1 |
| RS232 RX Baud Rate | RS232_RX_BAUD | 63 |
| RS232 TX Baud Rate | RS232_TX_BAUD | 63 |
| Layout | keyboard:GENKBD_CFG | 1 |
| Typematic Delay | keyboard:GENKBD_CFG | 6 |
| Typematic Rate | keyboard:GENKBD_CFG | 248 |
| Data Bits | rs232:terminal:RS232_DATABITS | 255 |
| Parity | rs232:terminal:RS232_PARITY | 255 |
| RX Baud | rs232:terminal:RS232_RXBAUD | 255 |
| Stop Bits | rs232:terminal:RS232_STOPBITS | 255 |
| TX Baud | rs232:terminal:RS232_TXBAUD | 255 |
| Cursor | rs232:terminal:TERM_CONF | 1 |
| Type | rs232:terminal:TERM_CONF | 2 |
| Blinking | rs232:terminal:TERM_CONF | 4 |
| Invert | rs232:terminal:TERM_CONF | 8 |
| Color | rs232:terminal:TERM_CONF | 48 |
| Auto CR on LF | rs232:terminal:TERM_CONF | 64 |
| Auto LF on CR | rs232:terminal:TERM_CONF | 128 |
| Local echo | rs232:terminal:TERM_CONF | 256 |
| Layout | rs232:terminal:keyboard:GENKBD_CFG | 1 |
| Typematic Delay | rs232:terminal:keyboard:GENKBD_CFG | 6 |
| Typematic Rate | rs232:terminal:keyboard:GENKBD_CFG | 248 |
|
control
| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |
| keypad | 1 | 1 | | no | | | | | | | |
| keyboard | 1 | 24 | | no | | | | | | | |
| keyboard | 2 | 73 | | no | | | | | | | |
| keyboard | 3 | 73 | | no | | | | | | | |
|
device
| type | tag | interface | fixed_image | mandatory |
| cassette | cassette | | | |
|
device_ref
| name |
| mc6809 |
| address_map_bank |
| ipt_merge_any_hi |
| ipt_merge_any_hi |
| pwm_display |
| speaker |
| cassette_image |
| acia6850 |
| mc14411 |
| rs232 |
| serial_terminal |
| screen |
| generic_keyboard |
| speaker |
| beep |
| pia6821 |
| pia6821 |
| pia6821 |
| screen |
| palette |
| mc6845 |
| pia6821 |
| generic_keyboard |
|
dipswitch
| name | tag | mask |
| RS-232 console (D4B) | JUMPER1 | 1 |
| MEK68R2 present (D4C) | JUMPER1 | 2 |
| Cassette baud rate | JUMPER1 | 4 |
| Keypad and display present (D4A) | JUMPER1 | 8 |
| Display format | R2_DISPLAY_FORMAT | 3 |
| Display nationality | R2_DISPLAY_NATIONALITY | 1 |
| R2 Mode | R2_MODE | 1 |
|
display
| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |
| rs232:terminal:terminal_screen | raster | 0 | 640 | 240 | 50.000000 | | | | | | | | no |
| screen | raster | 0 | 1440 | 340 | 50.000000 | 24480000 | 1440 | 0 | 1440 | 340 | 0 | 340 | no |
|
driver
| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |
| preliminary | good | unsupported | no | no | no | no | |
|
feature
| type | status | overall |
| sound | unemulated | |
|
input
| players | coins | service | tilt |
| 3 | | no | no |
|
port
| tag |
| :COL0 |
| :COL1 |
| :COL2 |
| :COL3 |
| :JUMPER1 |
| :R2_DISPLAY_FORMAT |
| :R2_DISPLAY_NATIONALITY |
| :R2_MODE |
| :RESET |
| :RS232_CTS_ROUTE |
| :RS232_DCD_ROUTE |
| :RS232_RX_BAUD |
| :RS232_TX_BAUD |
| :keyboard:GENKBD_CFG |
| :keyboard:GENKBD_MOD |
| :keyboard:GENKBD_ROW0 |
| :keyboard:GENKBD_ROW1 |
| :keyboard:GENKBD_ROW2 |
| :keyboard:GENKBD_ROW3 |
| :rs232:terminal:RS232_DATABITS |
| :rs232:terminal:RS232_PARITY |
| :rs232:terminal:RS232_RXBAUD |
| :rs232:terminal:RS232_STOPBITS |
| :rs232:terminal:RS232_TXBAUD |
| :rs232:terminal:TERM_CONF |
| :rs232:terminal:keyboard:GENKBD_CFG |
| :rs232:terminal:keyboard:GENKBD_MOD |
| :rs232:terminal:keyboard:GENKBD_ROW0 |
| :rs232:terminal:keyboard:GENKBD_ROW1 |
| :rs232:terminal:keyboard:GENKBD_ROW2 |
| :rs232:terminal:keyboard:GENKBD_ROW3 |
|
slot
|
sound
|