"Bounce buffer" copyright [was Re: flash (or ide) storage for unibus 11?]

dwight dkelvey at hotmail.com
Mon Nov 30 08:46:26 CST 2015


I wrote an interleave formatter for a friend to use on his H89.
He had an enormous data file that took for ever to read in BASIC.
He couldn't believe it could be made to work so much faster.
Dwight


________________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Chuck Guzis <cclist at sydex.com>
Sent: Sunday, November 29, 2015 1:56 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: "Bounce buffer" copyright [was Re: flash (or ide) storage for unibus 11?]

There were a few systems (such as CP/M) that optimized (or attempted to)
interleave depending on use.  So, "boot" tracks were 1:1, "directory"
may have been 2:1 and user data 3:1.

Schemes varied widely.  One or two even interleaved side-to-side in
addition to "skewing track-to-track.  Obviously written by a programmer
tasked with the job of "Let's see how fast we can get data on or off
this thing".

--Chuck



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