Add 7 bits

Design a circuit that receives 7 inputs and generates a 3-bit output. The output represents the number of ones at the inputs.

Specification

module add7bits(in, out);
   input [6:0] in;
   output [2:0] out;

Hint

Use only full adders.

Input

• in is the input vector with 7 signals.

Output

• out is a 3-bit number representing the number of ones at the inputs.

Problem information

Author: Jordi Cortadella

Generation: 2026-02-03T12:11:03.013Z

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