Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
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Manic Miner & Jet Set Willy Yahoo! Group
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Message: 6255
Author: john_elliott_uk
Date: 05/09/2007
Subject: Re: Tweaking the JSW engine: One for the experts
--- In manicminerandjetsetwilly@yahoogroups.com, dm_boozefreek
> I'd like to know would it be safe to modify the "Draw Willy routine"
You won't be able to do it blindly by dropping in the code you've
> in JSW64, or is the memory located in different places? Or will this
> be OK in theory but overwrite the code from another part of the
> program?
quoted, because JSW64 has various of its own changes in that region.
In particular, the pixel lookup table is at 9E00h not 8200h and the
code that overwrites Willy's sprite is different.
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