Hi Ruud, On 6/2/13 11:20 PM, Baltissen, GJPAA (Ruud) wrote: > I finished building the hardware enabling me to choose a ROM combination. > This can be done using an extra 6522. This also means I can implement a ROM > that needs more than the standard 16 KB using the paging method. But now > the question: where can I use it for? A bank-switched ROM could be used to enhance JiffyDOS 64: - Eliminate the switch. Most JiffyDOS users have a mechanical switch to select between JiffyDOS and the stock KERNAL. Instead of the switch, have the machine always start up with JiffyDOS and add a new command to bank in the stock KERNAL. It would be used like "GO 64" on the C128. - Restore tape support. JiffyDOS does not have tape support because the routines were replaced with other features. It would be nice to have tape support without having to switch back to the stock KERNAL. - Add JiffyMON. This is a nice machine language monitor for use with JiffyDOS that is loaded from disk. According to the manual, it loads into the RAM underneath the KERNAL ROM. Put it in the banked ROM instead so that it is always available. Regards, Mike -- Mike Naberezny (firstname.lastname@example.org) http://6502.org Message was sent through the cbm-hackers mailing listReceived on 2013-06-05 20:00:12
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