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Re: ROM1 and ROM3
- Subject: Re: ROM1 and ROM3
- From: nathan@visi.com (Nathan Mates)
- Date: 1997/04/22
- Newsgroups: comp.sys.apple2
- Organization: Vector Internet Services, Inc.
- References: <Pine.BSD/.3.91.970419185022.3924C-100000@connect.iconnect.net> <5ji9qq$cqq$1@sun.rhrk.uni-kl.de> <335D128E.1E42@no.no>
In article <335D128E.1E42@no.no>, Eric Jacobs <no@no.no> wrote:
>I was wondering.. what is that would make a program compatible with
>one ROM but not the other? I know the FTA did a lot of crazy things
>with the GS, but their code does not rely on the firmware
>heavily.. in fact they avoid calling the toolbox at all costs! So
>what is it that would stop them from working on a ROM 3?
Not all firmware is tools. Thus, you can cann a program tool-free
but still call the ROM a lot. There's also a few less-documented entry
points, etc that the FTA did use.
Nathan Mates
--
<*> Nathan Mates http://www.visi.com/~nathan/ <*>
# What are the facts? Again and again and again-- what are the _facts_?
# Shun wishful thinking, avoid opinion, care not what the neighbors
# think-- what are the facts, and to how many decimal places? -R.A. Heinlein