Re: LZ: Compression program (and questions for asm programmers)
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Re: LZ: Compression program (and questions for asm programmers)
On Tue, 10 Sep 1996, Scott J. Rein wrote:
> At 12:07 PM 9/9/96 -0500, you wrote:
> >The programs that weren't written to support this just wouldn't
> >keep high scores if they were compressed. The user could decide
> >if he wanted compression or high scores for those programs.
> >
> >Barry
>
> Of course this would mean writing a standard into my program
> (which would take up space!). That is okay, though, but I want
> to just accomplish the basic compression first.
I don't understand what you mean.
> In fact, what I need is a compression algorithm. Once I have that,
> I can start experimenting with putting programs into another string
> as .db's and trying to run it. In fact, I guess I could do that
> now without compression.
>
> I have a question for you (or anyone else who knows the answer):
> How do I make a call to a second ZShell program and then have the
> second program return control to the first? E.g., Caves and Scrolls.
> Both are engines, just as my compression would be.
I don't know much about zshell but if the programs return to
zshell with a ret, then if your decompressor calls them,
they'll return to your decompressor instead and it can return
to zshell.
If you want some samples of Z80 compression routines, look in
oak.oakland.edu /pub/cpm/squsq.
Barry
References: