The 3rd edition solutions often have typos (especially in VHDL code). Use a simulator like ModelSim or Quartus Prime (free versions) to compile the solution code. If it throws errors, you have found a teachable moment.
Standard chips, programmable logic devices (PLDs), and CMOS. Optimized Implementation Minimization using Karnaugh maps and tabular methods. 5 Arithmetic Circuits The 3rd edition solutions often have typos (especially
Designing adders, subtractors, and arithmetic units using VHDL. Sequential Flip-flops, registers, counters Mastering synchronous and asynchronous sequential circuits. Advanced Topics (Ch 10-11) CAD Tools, Testing programmable logic devices (PLDs)
Fundamentals of Digital Logic with VHDL Design - McGraw Hill The 3rd edition solutions often have typos (especially