In the following problem sets, we will use this expanded set of list of opcodes for our hypothetical machine: 0001 -Load AC from memory 0010-Store AC to memory 0011-Jump to address 0100 Subtract memory from AC (result in AC) 0101 Add to AC from memory (result in AC) Perform program fetch/execute cycles for the following initial memory and program states. NOTE: one of the problems uses the Jump to address instruction to implement a loop. You do not need to simulate more than the 4 fetch/execute cycles for this problem, even though the program in principle would execute forever. Problem Set 1 Problem1: Fetch stage CPU registers CPU registers 300 4940 301 5941 302 2941 AC 301 IR 302 IR 940 0001 941 0002 941 Step 1 Step 2 CPU registers Memory CPU registers PC 301 302 301 IR 302 IR 941 941 Step 3 Step 4 CPU registens CPU registers 301 302 301 302 AC IR AC IR 940 940 941 941 Step 5 Step 6 CPU registers CPU registers AC 301 302 301 302 AC IR IR 941 941 Step 7 Problem Set 1 Problem 2 Step 8 Fetch stage Execute stage CPU registers 300 CPU registers 300 941 301 5940 302 3301 AC AC 940 0002 941 0004 Step I Step 2 Memory CPU registers Memory CPU registers PC AC 300 PC AC IR 302 302 4 Step 3 Step 4 Memory CPU registers Memory CPU registers PC AC AC IR 302 941 941 Step 5 Step 6 Memory CPU registers Memory CPU registers PC AC IR 941 Step Step 7 Problem Set 1 Problem 3: Fetch stage Execute stage CPU registers 300 Memory CPU registers 300 301 4941 302 1940 IR 940 0004 941 0005 941 Step 2 Step Memory CPU registers CPU registers IR 302 941 Step 4 Step 3 CPU registers Memory CPU registers AC AC 301 IR 302 941 Step 6 Step 5 Memory CPU registers CPU registers Memory PC AC 301 IR 302 940 941 941 Step S Step 7 Execute stage Problem Set 1 Problem 4 Fetch stage Memory CPU registers 300 Memory CPU registers 300 5940 01 4941 AC 940 0005 941 0001 941 Step 2 CPU registers CPU registers PC IR IR 302 Step 4 Step 3 CPU registers Memory CPU registers PC AC IR 941 Step 6 Step 5 Memory CPU registers Memory CPU registers PC 300 AC IR IR Step 8 Step 7