GTIA Modes, ANTIC 2, and G2F?

[Cybernoid]

I noticed that you can turn on the GTIA modes and use ANTIC mode 2, for a Character-mapped 16 luma or 16 color screen.

 

Has any program used this? Is it possible for G2F to handle this?

 

This thinking out loud,

_C_

[emkay]

Actually, I wrote a small basic shooting game back in 1986 which took advantage of his Overlay. It was named "Galactic Raid". Execpt of the 16 color mode and a digitized Title music, it was poor crap

 

And, G2F is already using the feature you're asking for

[Cybernoid]

Oh. Yup, this basically answers my questions....

 

Hmm, have to look at G2F again.

 

Also, isn't there a way to allow ANTIC to load instructions, then turn off the instruction DMA to allow ANTIC to display one line over and over again?

 

Is there a way to cause GTIA to output video data on line 21 (NTSC)?

 

Thanks...

[Jaskier]

Also, isn't there a way to allow ANTIC to load instructions, then turn off the instruction DMA to  allow ANTIC to display one line over and over again?

 

Generally: YES. But this is a hack by using VSCROLL. Look at the Numen sources for details.