Re: [stella] Supercharger problem games?

Subject: Re: [stella] Supercharger problem games?
From: Thomas Jentzsch <tjentzsch@xxxxxx>
Date: Fri, 8 Aug 2003 20:21:24 +0200
Darrell Spice, Jr. wrote:
> Air-Sea Battle - shots either don't register or a shot on lower row
> blows up ship on topmost row

This code seems to the reason:
    lda    CXM0P
    ora    CXM1P

If the unused bits are not zero, the M0 collisions won't work.

> Canyon Bomber - screen rolls like crazy

This game produces a vertical sync of 14(!) lines, maybe that's too much?

Maybe that helps.

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

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