Re: Troubleshooting the disk drives in a 8296D

From: Matthew W. Miller (
Date: 2004-12-05 22:40:26

On Sun, Dec 05, 2004 at 02:45:38PM +0200, Marko M?kel? wrote:
>On Sun, Dec 05, 2004 at 02:11:19PM +0200, Marko M?kel? wrote:
>> Do you think that it could be the FDC ROM?  I'll next adapt your
>> "read6530.lst" to write the data to screen memory and dump it from
>> there.
>Done.  The FDC ROM doesn't correspond to any of the ones archived at

We've seen quite a bit of MS-Windows geekery lately, so now let's have
some UN*X geekery. :)

Assuming I patched the binary correctly as indicated by your diff, there
is indeed a match:


That file includes the start address, $00, $FC.  If you have recent GNU
cmp (or BSD cmp, I think), you should be able to skip the two
start-address bytes when comparing to the (raw) dump, like so:

$ cmp -l -i 2:0 8250romfdc-fc00 fdc-dump.bin
Matthew Miller <>
"One of the best things about the internet is finding out how wholesome
you really are compared to the other freaks out there." --Anthony Myers

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