Ken Shirriff on Nostr: The table is stored in a circuit called a PLA (Programmable Logic Array). A PLA ...

The table is stored in a circuit called a PLA (Programmable Logic Array). A PLA stores logic equations in two grids of transistors: the "AND plane" and the "OR plane". Logic equations are defined by putting a transistor (or not) at each grid point. This is much more compact than a ROM: 112 rows instead of 2048. 3/9