[stella] Re: Thrust source Stelladoc v2 status report)

Subject: [stella] Re: Thrust source Stelladoc v2 status report)
From: Manuel Polik <cybergoth@xxxxxxxx>
Date: Sat, 06 Oct 2001 05:25:18 +0100
Thomas Jentzsch schrieb:

> Thanks, it's quite interesting to read Jim's final optimizations.
> Let's see, if I can find one more byte...

Within the first ten seconds reviewing it, I think we might get up to
six bytes out of the vertical sync sequence:

       LDX    #0
       LDA    #$02
       STA    WSYNC
       STA    WSYNC
       STA    WSYNC
       STA    VSYNC
       STA    WSYNC
       STA    WSYNC
       STA    WSYNC
       STX    VSYNC

Or what is the first triple of STA WSYNC for?
I've seen that before more than a dozen times in archive sources, might
be some common 'cloning error' derived from 'How To Draw A Playfield'
:-)

Greetings,
	Manuel

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