I managed to complete another core for the MiSTer today, been a while as I needed to get the two PCB’s working enough to sample the sounds. But all of the games from Mame’s Universal Cosmic driver that use a Z80 are now on there. Cosmic Alien, Devil Zone, Magical Spot, No Mans Land and Space Panic. (All with sound, unlike Mame which only has it in Cosmic Alien and Space Panic)
Whilst making recent changes to the Galaxian core on MiSTer, I looked at the newest games in the Mame core as well to see what had been added that runs on standard galaxian hardware. One, that was flagged as ‘Not Working’ was “GuttangT” I didn’t originally plan to look at this any further, but the…
Version 2.2 of the PCB built for Gorf including the 5v regulation to power the MiSTer direct from the cabinet’s power supply. This version uses a 2 amp version of the 7805 regulator and a couple of smoothing capacitors and takes power from the 12v line on the cabinet. An alternate version uses a commonly…
One of the first things I did on the MiSTer once I had acquired a setup was to take the code for the Astrocade console, add in the additional hardware used by the arcade versions of the games to see if I could get them running. (See original post here) Following that I then decided…
I thought that swopping the CPU in the cosmic core to allow me to do Cosmic Guerilla would be simple. How wrong was I … 16 bit vs 8 bit, different memory read write signals, different port handling, even the reset is different! Anyway, for the first time it actually shows something running on screen….
I’ve updated the bill of materials for the Astrocade interface a little. Two items have been changed to have better descriptions and where people have let me know part numbers from Mouser or Digikey I have added them on.
The MiSTer core for Cosmic Guerilla has been completed. This core uses a TMS9900 CPU where the original uses a TMS9980 (8 bit version of same CPU, just does 2 byte reads/writes instead of 1 word read/write). However, game speed is controlled using vertical counter, so should be the same as the original. Sound effects…