Grudge Match (v00.90, prototype)
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Display
Type: raster Horizontal
Resolution: 256 x 240
Refresh: 59.19 Hz
Processors
Motorola MC6809E @ 1.25 MHz
Zilog Z80 @ 4 MHz
Audio
MM5837 Digital Noise Stream
RC Filter
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
CEM3394 Synthesizer Voice
Virtual Analog Oscillator
Constant value stream
Voltage-controlled amplifier
4th order LPF
RC Filter
Voltage-controlled amplifier
Channels: 1
Controls
Players: 3
Coin slots: 3
dial, 1 button
dial, 1 button
dial, 1 button
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
| Switch | Setting | Options | Default |
|---|---|---|---|
| Service Mode | Off ✱On | Off | |
| G1:1 | Unused | OFF Off ✱ON On | Off |
| G1:2 | Unused | OFF Off ✱ON On | Off |
| G1:3 | Unused | OFF Off ✱ON On | Off |
| G1:4 | Unused | OFF Off ✱ON On | Off |
| G1:5 | Unused | OFF Off ✱ON On | Off |
| G1:6 | Unused | OFF Off ✱ON On | Off |
| G1:7 | Unused | OFF Off ✱ON On | Off |
| G1:8 | Players | OFF 2ON 3 ✱ | 3 |
| H1:1, H1:2 | Unknown | H1:1 H1:2ON ON 0OFF ON 1ON OFF 2OFF OFF 3 ✱ | 3 |
| H1:3 | Unused | OFF Off ✱ON On | Off |
| H1:4 | Unused | OFF Off ✱ON On | Off |
| H1:5 | Unused | OFF Off ✱ON On | Off |
| H1:6 | Unused | OFF Off ✱ON On | Off |
| H1:7 | Unused | OFF Off ✱ON On | Off |
| H1:8 | Free Play | ON Off ✱OFF On (buggy) | Off |