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From: emjej@uokvax.UUCP
Newsgroups: net.micro.trs-80
Subject: Re: WANTED -- OS/9 Device Driver for 128
Message-ID: <19300001@uokvax.UUCP>
Date: Fri, 15-Feb-85 16:58:00 EST
Article-I.D.: uokvax.19300001
Posted: Fri Feb 15 16:58:00 1985
Date-Received: Fri, 22-Feb-85 10:11:18 EST
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Nf-From: uokvax!emjej    Feb 15 15:58:00 1985


OS-9/68000 has a device driver for RAMdisk (editorial: rather a bogus use
of memory! the way OS-9 works, cache (with write-through, for robustness)
or something that would benefit all disks on the system would be much better
for performance!). That would be a good starting point for a 6809 version,
especially if you could deal a Level Two version for the 68000, which would
have to deal with the sorts of things a 6809 RAMdisk would (i.e. making sure
you're in the right address space at the right time). Ask Microware about it.

Alternative suggestions for the extra RAM: put video and font memory in it
for use with O-Pak, so it won't eat the memory where OS-9 lives. (I guess
that suggestion is better pointed at Frank Hogg, but then he's pushing FLEX
<emulate Mr. Creosote here> for the CoCo.)

						James Jones