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Dismantling the Bilestoad boot screen
- Subject: Dismantling the Bilestoad boot screen
- From: Steve Nickolas <usotsuki@buric.co>
- Date: Sun, 24 Mar 2013 11:54:35 -0400
- Cancel-lock: sha1:rwQY2A5vYweUeXs0FiyjlpxbDWo=
- Injection-info: mx05.eternal-september.org; posting-host="48dd0e6e622bb703ed1d07e568a50405"; logging-data="3377"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+3tPKjVzSerYzd3VVk2Cslk5uMwGR7JkE="
- Newsgroups: comp.sys.apple2
- Organization: A noiseless patient Spider
- User-agent: Alpine 2.02 (DEB 1266 2009-07-14)
Memory map as of boot time:
0800-08FF - still contains the boot sector, though the last two bytes have
changed to B7,FF.
2000-3FFF - title screen.
B600-BF05, BFC9-BFEC - Looks to be the code we want, mixed in with other
stuff. It looks like BEAF is where the code starts, but it's a bit of a
tangled mess at first glance.
I'm probably going to have to trace it, and reassemble it at another
address (4000?).
-uso.