Hi All, I was wondering if we could share what we each know about how various utility cartridges /expansions go about installing themselves on the C64 and them hiding from the User. For example: KCS Power Cartridge has a 6810 (128byte RAM) which is in the I/O area and vectors are routed through this to switch in /out the ROM expansion The FINAL Cartridge III mirrors 512 bytes of ROM into the I/O space for the same reason Other carts (eg freezers) use a combination of RESET and NMI to wedge themselves at the push of a button.... But how to do some of the other devices work: RAMLINK (in particular where does RLDOS live)?? Epyx FastLoad (there's only a ROM and logic here)?? Action Replay (EPROMS, RAM and Logic)?? How do the C128 carts do it? 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 - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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