Explain program execution of the Figure 1 mentioned below by considering PC contents equal to 300? Explain in detail the execution and write clearly the contents of each CPU register after each clock cycle. Q4. Differentiate between CISC and RISC? Memory 300 1 9 4 0 301 5 9 4 1 302 294 1 940 0 0 0 3 9410 0 0 2 Step 1 Memory 300 19 4 0 301 5 9 4 1 302 2 9 4 1 940 0 0 0 3 941 0 0 0 2 Step 3 Memory 300 19 4 0 301 5 9 4 1 302 2 9 4 1 940 0 0 0 3 9410002 Step 5 CPU Registers PC AC IR CPU Registers PC AC IR CPU Registers PC AC IR Memory 300 1940 301 5 941 302 2 9 41 940 0 0 0 3 941 0 0 0 2 Step 2 Memory 300 1 9 4 0 301 5 9 4 1 302 2 9 4 1 940 0 0 0 3 941 0 0 0 2 Step 4 Memory 300 1 9 4 0 301 5 9 4 1 302 2 9 41 940 0 0 0 3 9410005 Step 6 CPU Registers PC AC IR CPU Registers PC AC IR CPU Registers PC AC IR