15.3.1. Types of Addressing Modes

Try these first

1. 1.

   What is indirect addressing?

   Hint

   Think of it as looking up a street address in a directory.

2. 2.

   What does MAR stand for?

   Hint

   It's a register related to memory locations.

3. 3.

   What is the primary function of indirect addressing?

   • To access data directly from a memory location.
   • To fetch an address that points to another address.
   • To store data temporarily.

   Hint

   Remember the flow of accessing data.

4. 4.

   True or False: The Memory Address Register (MAR) holds both data and addresses.

   • True
   • False

   Hint

   Think about the roles of different types of registers.

5. 5.

   Given an opcode for an instruction that uses indirect addressing, how would you draw its execution flow in stages? Include each register involved.

   Hint

   Focus on each register's role step by step.

6. 6.

   In a certain application using register indirect addressing, what would be the time complexity advantage over memory indirect addressing? Explain your reasoning.

   Hint

   Think about how data accesses relate to speed.