The Verilog HDL code does the following:
- The input is two selection inputs, and two signed integers in 2's complement form: A and B, each integer is 3-bits.
- The output is a signed integer in 2's complement from: G, its size is 3-bits.
- When the selection inputs are 00, G = A-1
- When the selection inputs are 01, G = A+B
- When the selection inputs are 10, G = A-B
- When the selection inputs are 11, G = -B
Sample output:
