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