[Coco] 256K J&R Banker and OS-9
Bruce W. Calkins
brucecalkins at bellsouth.net
Wed Dec 28 18:06:05 EST 2005
There is a hardware fix too, although I can't cite the source at the moment.
Unquestionably this upgrade was bug ridden.
> J&R's upgrade design is, as far as we know, compatible
> with the stock 64K CoCo with one exception. A problem
> arises if you program the SAM using the CLR command,
> because a CLR command PEEKs and the POKEs 00s to
> memory. You can fix this by replacing all offending
> CLR commands with STA commands (e.g. STA $ffc0).
> . . .
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.8/215 - Release Date: 12/27/05
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