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Message: 4141

Author: john_elliott_uk

Date: 28/04/2004

Subject: Re: Taxonomy of JSW-engines; JSWibble; Mono

 

In manicminerandjetsetwilly@yahoogroups.com, andrewbroad wrote:

Nice one! Though it would be useful to have an extra column for the
number of bytes per room (256, 1024, &c.).

Added.

I would consider adding "Geoff Mode 2" - the engine for _ZX Willy
the Bug Slayer_ - to the taxonomy.

Added.

I would add the Manic Miner variants to the taxonomy (you've already included Manic Miner as the basis for JSW48, after all):

Only because it is.

When does a patch create a noteworthy variant?
- When it edits the operands of instructions?
- When it replaces instructions without needing code-motion?
- Substantial extensions, i.e. ones that do entail code-motion?
- When data-formats are affected?
- When existing rooms need to be edited to accommodate the patch?

The criteria I'm using are:
* It affects the size of the room table, guardian table or item table;
* Or it changes the meaning of bytes within these tables.

So the Jet Set Wibble and Mono patches don't qualify under these
criteria. I've now put source for these at
< http://www.seasip.demon.co.uk/Jsw/patches.html >. I will be adding
some of my other patches to this page, such as Black Willy and a new
version of Adjacent Ropes.

 

 

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