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Re: Multi-Tasking on Apple IIgs?
- Subject: Re: Multi-Tasking on Apple IIgs?
- From: aiiadict@gmail.com
- Date: 10 Mar 2005 14:27:59 -0800
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It isn't complicated at all if you have a "clean slate".
Working around the Apple II's ROM, DOS, ram
configuration, hardware configuration makes it interesting.
The problem is with existing software. Programmers
use different areas of RAM, softswitches, etc and that
makes it impossible to create a software multitasker
that will work with all applications/programs.
I programmed the Z80 a few years back, and it is a very
neat design. Two sets of identical processor registers,
and you can switch between them easy.
Rich