🚀 go-pugleaf

> Like is it impossible to access each plane in turn?

Mode 13h is entirely linear...period.  No ifs, ands, or buts.  You have 64k of
memory to work with, which gives you the 320x200x256 colors.

> Can you use the set_address_high and set_address_low to pan the screen
> around?

No.

> Can you use page flipping?

No

> I have the feeling that the answer to all these questions. If so then
> why would anyone want to use this mode? My current scrolly is so
> processor consuming that I can't do anything else!! 

Because it is simple.  there are some applications that don't require it.  As
an example, I have written several games based in that mode.  Lessee, Wing
Commander uses the mode (DPaint's Camera program was able to capture a
screen.).  Most commercial software uses it, also.

> Should I use Mode X from now on? I believe you can do the above
> questions with  this mode, right?

You betcha.  And there are a lot of experts here.  

BTW, I'll be posting a sample demo with source soon that will have module
music, color cycling, a 100 pixel tall scroll, and a graphic equalizer going at
once.  It will be ModeX or Y, not sure yet.

Take care,
Joshua Jensen