--- Marko_Mäkelä <firstname.lastname@example.org> wrote: > On Sun, 3 Oct 1999, Ethan Dicks wrote: > > > I fired up my C= Colt (my ROM reader/burner) > > and slurped CBM and PDP-11 ROMs this weekend. > Even after converting them to PETSCII with tr, I didn't find anything > either. The files 300516revB.bin and 300517revB.bin are 8 kilobytes of > $ff Doh! I'll grab another disk drive and check it. Perhaps these have evaporated over time (the larger images were from a pair of TI 2564 chips) or perhaps my ROM programmer didn't like them. > ...but 300515revA.bin seems to make sense (it begins with valid 6502 code). That's good. I'll check another set of ROMs and see if those read any better. I will also verify that what I upload contains *real data* this time. ;-) My goal with this is to locate the disk geometry tables and see about patching them to accept an ST-225 or similar more modern mechanism. I know that moving the J13/J14 jumpers selects D9060 vs D9090 functionality, so it's got to be in the code somewhere to read those bits (I got a drive cheap ten years ago because the previous owner couldn't make it format - it was a TM602S inside with the jumpers set to expect a TM603S). -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to email@example.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 firstname.lastname@example.org.
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