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Message: 5216

Author: andrewbroad

Date: 04/12/2005

Subject: Re: A warning to those editing JSW64 games

 

john_elliott_uk wrote:

If you started writing your JSW64 game by taking a copy of the
original JSW64 (or JSW64:Manic Miner, or JSW64:Dragon) then you
should go to the memory map and mark pages 9E00 and 9F00 as
reserved.
Otherwise you run the risk of overwriting the sprite-position table
and/or the rope coordinates table.

This is, of course, another good reason to start with a 48k game
and upgrade rather than editing an existing JSW64 game.

At the risk of using up the last digit before 2.3.0, could we have
this advice in the JSWED manual please? And/or new revisions of said
three games?

What about when we set out to write a MM game in JSW64? I am under
the impression that JSW64:MM uses a patch-vector for the swordfish-
routine (and other special effects?). So is it better to start with
JSW64:MM and fix the memory-map, or to upgrade 48K JSW to JSW64 and
deeply copy the patch-vectors from JSW64:MM into the new game?

When I open MANIC64{W,Z}.TAP in JSWED, it recognises them as JSW48
games, and the room-data appear to be completely garbled.

--
Dr. Andrew Broad
http://www.geocities.com/andrewbroad/
http://www.geocities.com/andrewbroad/spectrum/
http://www.geocities.com/andrewbroad/spectrum/willy/

 

 

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