Re: [stella] DD build 8

Subject: Re: [stella] DD build 8
From: "Thomas Jentzsch" <tjentzsch@xxxxxx>
Date: Tue, 23 Oct 2001 10:04:54 +0200
Chris Wilkson wrote:
> > There is no way to paint over the HMOVe lines, you only can 
> > avoid them by starting HMOVE some cycles earlier. But then 
> > you are limited to only one move direction, so that won't 
> > work for you.
> Really?  Then how did Activision avoid them?  I guess their 
> only 2 options
> were never using HMOVE, or using it on every line.  But for 
> some reason I
> thought they used the ball to paint over them. ???

>From the three Activision games I've disassembled so far:
- River Raid and Pitfall! are doing HMOVE in every scanline
- Starmaster has a black background and doesn't use the very left part of the screen

By patching an emulator (disabling the ball) it would be quite easy to find games which use the ball for painting over HMOVE blanks. But I bet, you won't find any ;-)

Have fun!
Thomas Jentzsch         | *** Every bit is sacred ! ***
tjentzsch at web dot de |

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