14.3.2. Indirect Addressing Mode

Try these first

1. 1.

   What is indirect addressing?

   Hint

   Think of where the actual operand is stored in relation to the instruction.

2. 2.

   How many steps does indirect addressing typically require?

   Hint

   Remember the roles of fetching and accessing the operands.

3. 3.

   What does indirect addressing use to find an operand?

   • Direct memory access
   • A pointer in memory
   • Constant in instruction

   Hint

   Think about how indirect addressing is defined.

4. 4.

   True or False: Indirect addressing usually takes fewer steps than direct addressing.

   • True
   • False

   Hint

   Consider the relation between the two types of addressing.

5. 5.

   Construct a hypothetical instruction using indirect addressing and outline the steps taken during its execution.

   Hint

   Use your notes on the steps to outline the complete execution.

6. 6.

   Design a small program snippet that illustrates the usage of indirect addressing for updating an array's elements.

   Hint

   Think about how you iterate through arrays and how elements are accessed through pointers.