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Message: 4784

Author: john_elliott_uk

Date: 01/05/2005

Subject: Re: File formats and other matters

 

In manicminerandjetsetwilly@yahoogroups.com, Daniel wrote:

If I save a game as a .sna file or a .z80 file from JSWED, are these
not perfect snapshots? Okay, they don't make you press a key to
run the game, but I imagine they should have all of the temporary
variables corresponding to the moment you start the game, isn't
that right?

All JSWED does is set up the Z80 so that the game will start running
as if it's just been launched from BASIC. The game itself is then
responsible for setting up all its temporary variables.

- I take a .sna or a .z80 snapshot of a JSW game in progress and
load it into JSWED. Then I save it as a .tap file. Have I got a
"perfect" .tap file of the game? Depends what 'perfect' means :-) Phil, in what way "a nice little tap of your own" would have been
different from the .tap file you produced with JSWED?

Not that I'm Phil, but I think the only difference is that JSWED
doesn't let you have a loading screen.

- John Elliott wrote:

"Note that the downloadable zipfile on this page (which contains
JSW64 and JSW64:MM) isn't a simple zip of tape files."

why did you choose to do it this way, John? Was it because of
intellectual property rights and things like that?

Yes. I prefer not to distribute original Software Projects code from
my web page if I can possibly avoid it. Up to now the copyright
holders have been quite relaxed about our activities, but just in case
this happy state of affairs doesn't continue I'd like to have a way of
distributing JSW64.

 

 

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