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Addressing Modes: Identifying the Mode That Specifies the Operand Value Directly

Addressing Modes: Identifying the Mode That Specifies the Operand Value Directly

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Nov 4, 2026

In computer architecture, an addressing mode describes how the processor interprets the operand field inside an instruction. When the operand value is directly specified in the instruction itself, the addressing mode is Immediate (not Direct, Definite, or Relative). This is because the immediate field is treated as a literal value rather than as an address to be accessed.2

Below, you’ll learn (1) what immediate means, (2) how it differs from direct and relative addressing, and (3) what “definite” typically refers to in such multiple-choice contexts (it is generally not the mode that directly embeds the operand value).

Key idea: “Directly specify the operand value” ⇒ Immediate addressing.2

Footnotes

  1. (Immediate vs Direct addressing concepts) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Explains immediate vs direct interpretations. ↩ ↩2

  2. (Relative/PC-relative addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Covers PC-relative/relative addressing via offsets. ↩ ↩2

  3. (Operand field semantics across modes) — OpenStax/lecture-style architecture notes reflected in common definitions (addressing mode overviews) https://en.wikipedia.org/wiki/Addressing_modes - General semantics across addressing modes used to disambiguate MCQ distractors. ↩

Immediate vs Direct vs Relative Addressing (Concept Review)

Quick Rule

If the instruction contains the operand as a literal number/value (not an address, not an offset), the addressing mode is Immediate.

Correct option

The question asks:

“The addressing mode, where you directly specify the operand value is: (i) Immediate (ii) Direct (iii) Definite (iv) Relative”

The correct answer is (i) Immediate.2

Footnotes

  1. (Immediate vs Direct addressing concepts) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Explains immediate vs direct interpretations. ↩

  2. (Relative/PC-relative addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Covers PC-relative/relative addressing via offsets. ↩

Compare the distractors

To confirm why the other options don’t match, here’s how each commonly defined mode behaves:

Immediate: operand field is the value itself.2
Direct: operand field is (or directly names) a memory address whose contents are used as the operand.
Relative: operand field is an offset (displacement) relative to the program counter (PC), commonly used by branches.
Definite: not a standard “operand-literal” term in the typical classic four-mode set for such MCQs; depending on the syllabus, it may refer to a definite address concept (i.e., an explicit address), which aligns more with direct rather than “literal value in the instruction.”2

Footnotes

  1. (Immediate vs Direct addressing concepts) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Explains immediate vs direct interpretations. ↩ ↩2

  2. (Relative/PC-relative addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Covers PC-relative/relative addressing via offsets. ↩ ↩2

  3. (Absolute/definite terminology in addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Discusses absolute/explicit-address interpretations depending on terminology. ↩

  4. (Operand field semantics across modes) — OpenStax/lecture-style architecture notes reflected in common definitions (addressing mode overviews) https://en.wikipedia.org/wiki/Addressing_modes - General semantics across addressing modes used to disambiguate MCQ distractors. ↩

Addressing Mode Semantics (What the operand field means)

Higher bar means “more directly matches the meaning” of the operand being specified as the literal value in the instruction.

How to Identify the Correct Addressing Mode from Wording

  1. 1
    Step 1

    When wording implies the operand is a literal in the instruction, it indicates Immediate.

  2. 2
    Step 2

    If it says “the operand is found in memory at the address given,” that is Direct.

  3. 3
    Step 3

    If it mentions branches, offsets, displacement, or PC-relative behavior, that matches Relative.

  4. 4
    Step 4

    If your course uses 'definite' to mean an explicit address (not a literal value), it points away from “operand value is directly specified.” Often this corresponds conceptually to direct/absolute addressing rather than immediate.2

    Footnotes

    1. (Absolute/definite terminology in addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Discusses absolute/explicit-address interpretations depending on terminology. ↩

    2. (Operand field semantics across modes) — OpenStax/lecture-style architecture notes reflected in common definitions (addressing mode overviews) https://en.wikipedia.org/wiki/Addressing_modes - General semantics across addressing modes used to disambiguate MCQ distractors. ↩

Common Confusions (FAQ)

Minimal takeaway

For MCQs framed as “where you directly specify the operand value,” the answer is:

✅ (i) Immediate.2

Footnotes

  1. (Immediate vs Direct addressing concepts) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Explains immediate vs direct interpretations. ↩

  2. (Relative/PC-relative addressing) — Wikipedia, “Addressing modes” https://en.wikipedia.org/wiki/Addressing_modes - Covers PC-relative/relative addressing via offsets. ↩

Knowledge Check

Question 1 of 3
Q1Single choice

Which addressing mode directly specifies the operand value in the instruction?

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