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Addressing mode

3:52

Modes of addressing in memory - Immediate / Direct / Indirect / Indexed / Relative

1:23

4-4. Addressing Modes

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CO24e - Index addressing mode

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Addressing mode 3d Animation

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Addressing Modes

Addressing modes are an aspect of the instruction set architecture in most central processing unit (CPU) designs. The various addressing modes that are defined in a given instruction set architecture define how machine language instructions in that architecture identify the operand(s) of each instruction. An addressing mode specifies how to calculate the effective memory address of an operand by using information held in registers and/or constants contained within a machine instruction or elsewhere.
    • Caveats 

    • Number of addressing modes 

    • Simple addressing modes for code 

    • Sequential addressing modes 

    • Simple addressing modes for data 

    • Other addressing modes for code or data 

    • Obsolete addressing modes