8-bit Compact Adder

Uses counters to add two 8-bit binary numbers. The algorithm is slow (basically add the two numbers one by one), but the circuit is compact. An 8-bit logical adder is relatively large for EveryCircuit, so this is one way to implement an adder in a compact space. In terms of operation, the two rows of logic sources at the top of the screen represent binary values. Input two values, then trigger the single logic source below both rows to start adding. Once done adding, the final display's decimal point will light up to indicate that the calculation is completed. One small tip: it's fastest to put the smaller number in the top row of logic sources. Enjoy!!

published 9 years ago