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Forums > C64 Coding > GCR decoding on the fly
2013-03-31 12:46
lft

Registered: Jul 2007
Posts: 369
GCR decoding on the fly

Here's how to do it:

http://linusakesson.net/programming/gcr-decoding/index.php
 
... 149 posts hidden. Click here to view all posts....
 
2013-04-06 09:13
Isildur

Registered: Sep 2006
Posts: 275
Regarding Doynax, ByteBoozer, Exomizer, Level Crusher in one place:



http://csdb.dk/release/?id=117165&rss

Do you find this tool useful?
(BTW This is not any kind of adv - just asking)

2013-04-06 18:25
Burglar

Registered: Dec 2004
Posts: 1105
isildur, yea, its quite useful, especially since you guys included benchmark disks of the various packers. including your own bongo cruncher, which seems to perform best (only slightly longer than exomizer, but beating every other one in both size and speed).

now, what would really be interesting and useful is to include other irq loaders in the benchmarks (like Krill's, lft's, ...).
2013-04-06 20:15
Isildur

Registered: Sep 2006
Posts: 275
Burglar, I'll talk to Wegi about that :)
2013-04-06 20:36
Krill

Registered: Apr 2002
Posts: 2982
GUI coding tools other than text editors aren't for me.

And to be honest, the code needs serious clean-up, if not complete rewrite, to be useable.

A generic packer/loader test tool would be a nice thing, however, i guess it's hard to accurately measure different design and useability properties in various usecases against mere performance numbers.
2013-04-06 20:56
Isildur

Registered: Sep 2006
Posts: 275
It will be hard because Wegi is like Derbyshire Ram on Polish scene (but with tough persoality) ;P
2013-04-06 23:13
Fungus

Registered: Sep 2002
Posts: 691
No, I don't find it useful because my build environment is all command line tools.
2013-04-06 23:34
Isildur

Registered: Sep 2006
Posts: 275
Fungus, there is command line tool.
2013-04-07 07:06
Bitbreaker

Registered: Oct 2002
Posts: 508
I am just about doing a complete rewrite of the packer in C. So the tool will have clean code soon and be ready for commandline driven build-environments.
2013-04-07 13:12
chatGPZ

Registered: Dec 2001
Posts: 11391
Quote:
It will be hard because Wegi is like Derbyshire Ram

no. really.
2013-04-08 07:35
ChristopherJam

Registered: Aug 2004
Posts: 1409
I finally got around to reading lft's post. Amazing work, especially realising you can get down to just two tables. And yes, squeezing every last cycle out of a loop can be quite the brainworm :)

Well done!
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