[Coco] Coco Digest, Vol 131, Issue 37 - Stack Blast

[John Strong]

Ah the stack blast, works great for tiles not so well for irregularly shaped sprites, which is where you might want to use complied sprites.

 

the IRQ hack great idea! may just use it.

John Strong

StrongWare - Soviet Bloc, Gems, Gems 2 games


 

Subject: [Coco] A Great Old-Timey Game-Programming Hack - Tom
Moertel?s Blog
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Message-ID: <BB979990-BE2B-466F-A715-7C2E14B64718 at pobox.com>
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http://blog.moertel.com/posts/2013-12-14-great-old-timey-game-programming-hack.html
 
A discussion of techniques used to speed up a 6809 graphical copy loop. He was working on a CoCo 3 on a friend's game, but didn't reveal what the game was. A very good read with plenty of example 6809 code on how he sped up the block copies quite a bit.
-
Allen Huffman - PO Box 22031 - Clive IA 50325 - 515-999-0227 (vmail/TXT only)
Sent from my iPad.