--- Richard Atkinson <rga24@hermes.cam.ac.uk> wrote: > Does anyone know how filetypes (PRG, USR, SEQ and REL) are implemented? Implemented how? The difference between a PRG file and an SEQ file (besides the bit in the directory entry) is that a PRG starts with the load address as a low-byte, high-byte pair. USR files are undefined by CBM DOS, and REL files are different depending on the exact version you have (super-side-sectors and the like). There's lots of code in every drive to support relative files. I've writted professional code to manipulate them, but at this point in history, I don't think the amount of coding required to continue to support them is worth the payback. Has anyone ever used them for anything more interesting than a simple index file, a la electronic Rolodex? -ethan === Infinet has been sold. The domain is going away in February. Please send all replies to erd@iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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