Basics

Constant One Output

Drive a single-bit output to a constant logic 1 using a continuous assignment.

Constant Vector Output

Drive an 8-bit output bus to a fixed constant bit pattern.

2-to-1 Multiplexer

Build a 2-to-1 multiplexer using a single continuous assignment with the ternary operator.

Half Adder

Build a half adder that produces a sum and carry-out from two 1-bit inputs.

Full Adder

Build a full adder that sums two bits plus a carry-in, producing a sum and carry-out.

NOR Gate

Build a two-input NOR gate.

XNOR Gate

Build a two-input XNOR gate.

Declaring Wires

Declare and use an internal signal between two logic operations.

7458 Chip

Model the two independent sum-of-products sections of a 7458 logic chip.