Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!TAURUS.BITNET!finkel
From: finkel@TAURUS.BITNET
Newsgroups: comp.sys.cbm
Subject: turbodisk and IEEE
Message-ID: <8902130828.AA09474@MATH.Tau.Ac.IL>
Date: 13 Feb 89 08:28:46 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: <finkel%TAURUS.BITNET@CUNYVM.CUNY.EDU>
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There has been lately a talk about IEEE drives, and their owner's dislike
of turbo disk programs.

Well, I have written a turbo program for 8050/8250/SFD1001. It uses all 3
processors ( 2 in the drive, 1 in the C64 ) so it can easily read a full
track at a time with zero interleave. The program reads the disk using a
nonstandard file format ( that coexist on the same disk with normal PRG/SEQ
file ) that uses 256 data bytes per block and continous block allocation on
the disk. I have a special copy program that prepares such disks. The program
runs on special IEEE cards manufactured by the company on which I work. (these
are actually network cards. up to 20 C64's can share the same IEEE drvice ).
Speed is much faster than anything possible with any C64.. I think it's faster
than the C128 burst mode. I also have a C128 version of the program.
Turbo-saving is NOT supported. the only way to create such turbo files is using
teh copy program which is written partly in basic and partly in assembly.

If anyone is interested, please write me for more details.

Udi Finkelstein
finkel@taurus.BITNET