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Which addressing mode is suitable for representing constants and immediate values in instructions?

Question

Which addressing mode is suitable for representing constants and immediate values in instructions?

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Solution

The addressing mode that is suitable for representing constants and immediate values in instructions is the Immediate Addressing Mode.

Here's a step-by-step explanation:

  1. In Immediate Addressing Mode, the operand is a part of the instruction itself. This means that the value to be operated upon is directly given within the instruction.

  2. This mode is used when the operand is a constant or an immediate value that doesn't change.

  3. For example, in an instruction like ADD 5, the number 5 is the immediate operand. The processor doesn't need to fetch this value from memory, it's directly available in the instruction itself.

  4. This mode is quick because no memory access is required to fetch the operand. However, the size of the operand is limited to the size of the field in the instruction.

  5. Therefore, Immediate Addressing Mode is suitable for representing constants and immediate values in instructions.

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