On Mon, 19 Jul 1999, [ISO-8859-1] Marko Mäkelä wrote: > On Sun, 18 Jul 1999, Bo Zimmerman wrote: > > > Have no idea what they are. They just appeared to be EPROMS on the 8280 > > motherboard. I noticed funet didn't have them... so here you are! > > Thank you! I assume that this is the 8" counterpart of the 8050/8250. The > ROM dumps are now available from > <URL:http://www.funet.fi/pub/cbm/firmware/drives/old/8280/>. Any > additional information of this drive is welcome (e.g. a parts list similar > to the file .../8050/README). Were these all the ROMs on the motherboard? > The message in the 300543-001 ROM identifies it as Cbm DOS 3.0. 300543-001 appears to be $E000-$FFFF. 300542-001 appears to be $C000-$DFFF. They are similar to DOS 2.5 and 2.7. 300541-001 is different than the GCR ROM in the other CBM drives. It also does not appear to contain 6502 machine language. Somewhere in the ROMs should be a table giving the format (tracks and sectors) of the disk. - 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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