Anyone have a board of this game they can record so that I know what the game looks and sounds like?
It's a standard Galaxian hardware type game with more sprites and slightly wider resolution. But I want to verify the PCB and AY clocks are correct (not at all probably, PCB probably has a standard ~18MHz crystal with the AY clock / 12) and if the NMI interrupt for sound is triggered every rising edge of 8V. Currently MAME just runs the NMI on a 650hz periodic timer, which is obviously wrong, and the rate is a bit too slow causing sound to mess up sometimes.
I'm slowly working on a gradual plan to fix up some Galaxian based games in MAME so they should actually look and play as they should. Some of them have became increasingly obscure since they were dumped and have received barely any attention since.
It's a standard Galaxian hardware type game with more sprites and slightly wider resolution. But I want to verify the PCB and AY clocks are correct (not at all probably, PCB probably has a standard ~18MHz crystal with the AY clock / 12) and if the NMI interrupt for sound is triggered every rising edge of 8V. Currently MAME just runs the NMI on a 650hz periodic timer, which is obviously wrong, and the rate is a bit too slow causing sound to mess up sometimes.
I'm slowly working on a gradual plan to fix up some Galaxian based games in MAME so they should actually look and play as they should. Some of them have became increasingly obscure since they were dumped and have received barely any attention since.
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