Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
Archive of the
Manic Miner & Jet Set Willy Yahoo! Group
messages
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Message: 4949
Author: john_elliott_uk
Date: 14/10/2005
Subject: Re: Willy and Toilet in same room?
--- In manicminerandjetsetwilly@yahoogroups.com, andrewbroad
> Now, to jump to the toilet-display routine even in "Master Bedroom",
Beg to differ. All you need is a little spaghetti.
> we'd have to replace these two RET instructions with jumps to 38298.
> Unfortunately a RET instruction is one byte long, while a JR
> instruction is two bytes long (the second byte is the operand that
> tells it by how many bytes to jump forwards/backwards, as a signed
> value from -128 to +127). So to make this change would entail
> shunting and relocating of code.
9539 20 -> 18
9567 B7 -> B6
959A 3A -> C0
959B 20 -> CD
959C 84 -> 3B
959D FE -> 95
959E 21 -> 00
959F C0 -> 00
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