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Re: ROM Editing

Subject: Re: ROM Editing
From: david@uow.edu.au (David Wilson)
Date: 22 Mar 2002 09:01:17 +1100
Newsgroups: comp.sys.apple2
Organization: University of Wollongong
References: <3c96ef42$1@news.svn.net> <3C997EE7.82603173@buckeye-express.com> <3c9a1cc8$1@news.svn.net>
Xref: archiver1.google.com comp.sys.apple2:18320

>> Paul Grammens wrote:
>> > Anyone have any pointers on how to hack ROM's?

1.Transfer contents to a disk file.
2.Run it through a disassembler.
3.Add comments and labels to code.
4.Add new code or modify existing.
5.Reassemble.
6.Burn new EPROM.
7.Test it.

I did this with my first Cirtech SCSI card. It only supported up to 128MB
disk drives and I had a 200MB unit. I have my own disassembler I wrote that
runs on UNIX. I found how it handled 1st 4 32MB partitions and added similar
code for next 4 partitions giving total of 256MB per disk. It worked perfectly.
--
David Wilson  School of IT & CS, Uni of Wollongong, Australia

Follow-Ups:
- Re: ROM Editing
  - From: "Paul Grammens" <grammens@svn.net>

References:
- ROM Editing
  - From: "Paul Grammens" <grammens@svn.net>
- Re: ROM Editing
  - From: "Paul R. Santa-Maria" <paulrsm@buckeye-express.com>
- Re: ROM Editing
  - From: "Paul Grammens" <grammens@svn.net>

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