15.1.5. Final Operand Loading to Register

Try these first

1. 1.

   What is the primary function of the Instruction Register (IR)?

   Hint

   Consider where the CPU stores its current task.

2. 2.

   Define indirect addressing mode.

   Hint

   Think about how maps lead to actual destinations.

3. 3.

   What is the function of the Memory Address Register (MAR)?

   • Holds the instruction
   • Holds the memory address
   • Holds the operand

   Hint

   Think about where the CPU looks to find data.

4. 4.

   Memory indirect addressing requires fewer stages than register indirect addressing mode.

   • True
   • False

   Hint

   Remember the stage counts we discussed.

5. 5.

   Given a sequence of operations involving both memory indirect and register indirect addressing, illustrate how control signals change across each operation.

   Hint

   Track control signal changes as instructions are processed.

6. 6.

   Create a detailed comparison chart demonstrating the pros and cons of memory indirect versus register indirect addressing modes across various dimensions (speed, complexity, etc.).

   Hint

   Focus on how each mode operates differently and impacts performance.