(a) Write an HDL gate-level description of the BCD-to-excess-3 converter circuit shown i...

(a) Write an HDL gate-level description of the BCD-to-excess-3 converter circuit shown in Fig. 4.4 (see Problem 4.22).

(b) Write a dataflow description of the BCD-to-excess-3 converter using the Boolean expressions listed in Fig. 4.3 .

(c) Write an HDL behavioral description of a BCD-to-excess-3 converter.

(d) Write a test bench to simulate and test the BCD-to-excess-3 converter circuit in order to verify the truth table. Check all three circuits.

Reference: Problem 22

Design an excess-3-to-binary decoder using the unused combinations of the code as don’t-care conditions. (HDL— see Problem 4.42.)