L0 ROM

Toshiba LO ROM chip taken from an AES system.

File:Cd2 lo.jpg

LO ROM chip found on a CDM3-2 board.

LO stands for "LOokup". It's a 64kB ROM chip found in every NeoGeo systems, which contains byte values used by the GPU to shrink sprites vertically.

The dump is often called 000-lo.lo in BIOS sets.