>Hi Marko,
>Will see if I can configure a dual EPROM cart with a switch on the
>GAME input. The upper ROM can call the lower one's cold vector. The >RAM
test will fail after the first 4k, but with a flick of the
>switch the normal config will be possible. I'll put a copy of the
>Kernal in the upper ROM just in case the cart needs if for >"printing"
etc... Hopefully it doesn't need the BASIC ROM routines.
>- Nick
A quick test in VICE suggests cart will boot if configured as above, but it
does no hardware setup of its own, so VIC chip is pointing to wrong
character set (actually looks to be in Hi-res graphics mode....) Looks like
it needs some pokes before jumping to the cold vector... but not impossible.
BTW: memory test eventually writes over the IO region and hangs.... (as
expected)
- Nick
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