Macguyver wrote:However, I was not aware of the cartX command,
It's the only way to tell XVIC where exactly to load the data for ROM cartridges.
... and I was able to find a combined ROM file from a TOSEC collection which was a single file.
Explosion here. Lode Runner uses BLK3 and BLK5 and these areas are well separated so the very notion of a single file to cover 2 completely separated memory areas seem to involve a complex custom filing system.
Back in the early 80s, you had a few 16k or 24k RAM expansions modded to spontaneously toggle an 8k RAM block between BLK 2 and BLK 5 so with these you could have a single file which would load into BLK 2 and 3 then swap the content of BLK 2 to become visible in BLK5 then reset. It's the only combined version I know of Lode Runner and other 16k game cartridges for the VIC-20.
There is absolutely no such thing in VICE or any versions thereof so AFAIK, this single file version is in a format which comes from Neptune...
I have never been able to get these combined CRT files to work, but with cartX and your info below, it works perfectly!
I'm curious, are almost all Vic20 games available in the combined CRT format, as well as multipart?
AFAIK, there is no such thing as a .CRT format for the VIC-20. It exists only on the C64 because on that machine, you don't simply load data in specific memory areas. C64 carts are more complex than that.
Boy, I can just imagine how much work must have gone into getting things running smoothly in the Vic20 Gamebase.
I've been using VIC-20 cartridge images since 1982 (I was 12 then) and they are incredibly simple to use... when you know what you do.
Be normal.