>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 PLEASE TAKE NOTE: The contents of this email (including any attachments) may be privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this email in error, please advise us immediately (you can contact us by telephone on +61 8 9441 2311 by reverse charge) and then permanently delete this email together with any attachments. We appreciate your co-operation. Whilst Orbital endeavours to take reasonable care to ensure that this email and any attachments are free from viruses or other defects, Orbital does not represent or warrant that such is explicitly the case (C) 2000: Orbital Engine Company (Australia) PTY LTD and its affiliates Message was sent through the cbm-hackers mailing list
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