Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
98-Comp-A2, Digital Systems Design — National Exams, May 2016. Closed-book, 3 hours; six 20-mark questions, FIVE constitute a complete exam (all six answered below as a complete study resource).
Reference texts: Mano & Ciletti, Digital Design, 6th ed. — VHDL/digital-design concepts, PAL implementation, variable-entered maps, synchronous counter design, and memory/interfacing, covering Questions 1–5; Patterson & Hennessy, Computer Organization and Design, 6th ed. — interrupt-driven I/O, covering Question 6.
