Disassembling the Rainbow BIOS

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#1347

From: Richard Thomsen
Date: Fri, 05 Feb 1988 19:50

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	Using ASMGEN, I built a .SEQ file to disassemble the Rainbow 8088
BIOS, putting in addresses and names for the locations.  I am working on
one for my BIOS changes, and another for Version 3.1 of the BIOS.

	Does anyone know the legalities of posting these files?

	Is there a "standard" disassembler (similar to ASMGEN) for
disassembling the Z-80 code, so I can build the equivalent of ASMGEN's .SEQ
files for the Z-80 code?

	Anyone willing to build a new formatter for the Rainbow and post
it public domain, so I can put in my changes to allow it to format double-
sided disks?  Disassembling the DEC formatter and modifing it is a pain,
and also has copyright problems when distributing it.  It also needs to
read the hard disk home block to get disk information off the disk, instead
of assuming 4 heads and other things.  Maybe FDISK in version 3.1 takes
care of this problem, or the new formatter does, but no sources are
available.

	How much can we do to keep the Rainbow alive, without getting
sued by DEC?  Anyone interested in building new Rainbow hardware?


						Richard Thomsen
						Mountain Route Box 234
						Jemez Springs, NM  87025

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!uwmcsd1!ig!agate!ucbvax!LANL.GOV!rgt
From: rgt@LANL.GOV (Richard Thomsen)
Newsgroups: comp.sys.dec.micro
Subject: Disassembling the Rainbow BIOS
Message-ID: <8802051950.AA20829@LANL.GOV>
Date: 5 Feb 88 19:50:24 GMT
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