Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!ames!killer!jolnet!brendan
From: brendan@jolnet.ORPK.IL.US (Brendan Kehoe)
Newsgroups: comp.sys.cbm
Subject: Re: 1581 error problems!
Summary: fixing a bad track/sector
Keywords: Error #23!
Message-ID: <487@jolnet.ORPK.IL.US>
Date: 14 Apr 89 22:45:59 GMT
References: <441@galen.acc.virginia.edu>
Reply-To: brendan@jolnet.ORPK.IL.US (Brendan Kehoe)
Distribution: usa
Organization: Jolnet, Public Access Unix, Orland Park (Joliet), Ill.
Lines: 22

In article <441@galen.acc.virginia.edu> kws1x@dale.acc.Virginia.EDU (Kenneth W. Smith Jr) writes:
>           My problem is how can I reclaim those programs.  Mucking about
>with disk headers and sectors is a relatively new frontier for me, and I
>fear mangling the program files any further.  Any advice and/or book
>references for help would be GREATLY appreciated!!

 Get a copy of "Inside Commodore DOS" by Dick Immers & Gerald Neufeld..on
page 469 of it, there is a program called "Recover Track & Sector"..you may
have to change lines 420 and 530, due to possible differences in the zero
page of the 1581 as compared to the '41 (yoo hoo Commodore...$71 and $8 =
what on the 81?)..a few other changes (like 140-150, where it decides the
track # and max sectors) may also have to be done..or you could even just rip
the routines that read then re-write the sector out and write a lil prg
of your own.
 While we're at it, does anyone know where to get aa half-decent memory map
of the 1581?

-- 
Brendan Kehoe
brendan@cup.portal.com    | GEnie: B.KEHOE  | Oh no! I forgot to say goodbye
brendan@chinet.chi.il.us  | CI$: 71750,2501 |  to my mind!
brendan@jolnet.orpk.il.us | Galaxy: Brendan |                - Abby Normal