A 4 bit CPU!
It has two registers, A and B.
It has 4 instructions, signified by the 2 inputs on the bottom left.
They are:
00 - Load data (4 bits right of opcode) into A
01 - Copy B into A
10 - Store A AND B into A
11 - Copy A into B
It hasn't been tested well, so if you find bugs tell me!
The seven segment display shows A.
Also, hold down the clock (top left) for a while, until it updates.
