Table 1 shows comparative results of a 16 * 16-bit multiplier. V. RESULT AND DISCUSSION. We compared three kinds of 16-bit multipliers which are an array multiplier, a Wallace tree multiplier, a Vedic ...

I was thinking … a overlaid schematic (logic diagram) and lots of LEDs on the gate inputs/outputs. Then I was thinking perhaps a small CPLD with toggle buttons for the inputs and a 4 bit up down ...