RE: [cc65] Optimizations needed!

I think you could pack the word list down from 10k in some way, unless
you've already done this.  You could pack 63 different characters (plenty
because you probably only need 26+space and maybe a few punctuations) in 6
bits, giving you 4 letters per 3 bytes.  Or 31 in 5 bits, giving you 8
letters in 5 bytes.

 

4 letters per 3 bytes = 3k saved (approx).

8 letters per 5 bytes = 3.75k saved (approx.)

 

This is something like the way the Z-machine packs its text.

http://www.gnelson.demon.co.uk/zspec/sect03.html

 

I suspect that there are more clever ways to do this.

 

 

 

  _____  

From: owner-cc65@musoftware.de [mailto:owner-cc65@musoftware.de] On Behalf
Of Maspethrose7@aol.com
Sent: Thursday, November 25, 2010 7:26 PM
To: cc65@musoftware.de
Subject: Re: [cc65] Optimizations needed!

 

Loading rooms from disk would be infeasible, because, so far, they take only
1 3/8k of code and certain rooms use some code to handle special instances.
Verbs could be loaded in from disk as needed, but such would require a lot
of conversion work and other considerations and would slow down the system
considerably.  The words take up about 10k, so this should save 2-3k.  Thank
you.

 

In a message dated 11/25/2010 9:25:59 P.M. Eastern Standard Time,
plbyrd@gmail.com writes:

Load as much data as you can dynamically.  Numbered text files, or a REL
file of the data could be a great help in holding down code bloat.  You
could also detect the availability of extra RAM and load data into an REU or
similar device using the ram expansion driver model for cc65. 


-- 
Payton Byrd
<http://www.paytonbyrd.com <http://www.paytonbyrd.com/> >
<http://it.toolbox.com/blogs/paytonbyrd>

 

-------------------
Joseph Rose, a.k.a. Harry Potter
Working magic in the computer community...or at least striving to! :(




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