Posted By
RetroAndMore on 2024-07-17 07:36:55
| Re: Hardware project for C16 and C128
@gerliczer
My project was originally planned for the C128. There are so many C64 pojects out there, but nothing is for the C128. However, some are noticing the features of the C128. Sonic The Hedgehog, Eye Of the Beholder are making use of the 2 MHz mode. Eye of the Beholder and Attack of the PETSCII Robots are using the VDC for a map display. The 8 -Bit-Guy did not even consider a native C128 version, but it resulted in the best version for an 8 bit computer.
The C16 has a smiliar problem like the C128: The plus/4 was always more common. But in this case, the C16 is better suitable because it has lots of space inside the computer and the outside. The C16 and the C128 are also sharing a similar processor: a 6502 with an 7-bit I/O-port. They are slightly different, but this doesn't matter. So the same hardware can be used on the C128 could be modified to the C16. It also would be a good idea to add a SID and a VIA on the board.
If the new Kernal and BASIC are programmed simultaneously, a higher compatibility could be achieved. For the BASIC, I thought on a completely new version which has not be compatible to other BASIC dialects. It would be more useful to create a converter, which also changes memory addresses and system routines, which are incompatible on every Commodore computer.
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