--- In gbadev@yahoogroups.com, "thomyorke999" <thomyorke999@y...> wrote:
> 512x512 pixel tile maps in text-mode bgs.... what good are they?
> Shouldn't 256x256 be just as adequate (HOFS and VOFS + load a few
> columns/rows of tiles into memory), or are there any cases where
> 512x512 would simply be better. Does 512x512 actually have a use
> that 256x256 couldn't be made to replace?

Some games use hblank DMA shearing on the x scroll registers to
simulate a 3D floor. For those, you do need a 512x256 map because
the pixels displayed from a single row of tiles may span more than
32 tiles horizontally.

> If so, is there an example retail game you could point out that
> uses it?

Games that shear the playfield include Pole Position, the
Street Fighter II series, the NBA Jam series, and several others.

--
Damian