The hypothetical M-machine has the following characteristics: Both instructions and data are 4-bits long. The instruction format provides 2-bits for the opcode and remaining bits are used for address. The machine consists of an accumulator (AC), program counter (PC), and an instruction register (IR). The complete list opcodes for the hypothetical M- machine are: 00: Load AC from memory . 01: Store AC to memory 10: Add contents of memory to AC 11: Subtract content of memory from AC Show the program execution (all the steps) for the following program (assume that the program is stored starting at location 002) 1. Load AC from memory 102 2. Subtract contents of memory location 112 3. Store AC to memory location 102 Assume that the value retrieved from memory location 10 is 2 and that memory location 11 contains a value 3