Overview

The Game Gear VDP is identical to an SMS2 VDP except that:

Features affected by display cropping in GG mode

The scroll locking bits are still effective but, in GG mode, the top two rows are off-screen (so horizontal scroll lock is not visible). The vertical scroll lock is partially on-screen, giving two columns of visible scroll locking.

The leftmost column is also off-screen so there is no use for disabling it.

The sprite limit can still occur for off-screen sprites; thus, it is important to avoid displaying sprites off-screen to avoid this.

More sections

to follow...

Differences between SMS and GG are noted in relevant sections where applicable; anything GG-only can be mentioned here.




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