Message-ID: <250@unm-la.UUCP>
Date: Mon, 4-Feb-85 21:26:19 EST
Article-I.D.: unm-la.250
Posted: Mon Feb  4 21:26:19 1985
Date-Received: Sat, 9-Feb-85 08:44:28 EST
Distribution: net
Organization: Univ. of New Mexico, Los Alamos
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Xref: watmath net.micro.6809:425 net.micro.trs-80:260 net.wanted:5734

I own a Color Computer and I run with the OS/9 operating system.
I have recently installed a 128K modification from DSL Computer
products, and have been able to use it successfully from Disk
Extended Basic.

What I am looking for is source code to make use of this 128K
modification from OS/9.  I would be interested in either a device
driver/descriptor which would use this extra 64K as a ram disk or
source code patch to OS/9 which would allow it to use the entire
128K as online memory area (this is probably more difficult task).

Please send any information concerning source or where I can get
source to use this 128K from OS/9 on my Color Computer.

Thank you.

-- 
{{ Mike Mitchell @ UNM Los Alamos }}

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
References: <250@unm-la.UUCP>
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Nf-ID: #R:unm-la:-25000:uokvax:19300001:37777777600:819
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
 for the CoCo.)

						James Jones