Addressing Mode
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 (or operands) 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.
In computer programming, addressing modes are primarily of interest to compiler writers and to those who write code directly in assembly language.
Read more about Addressing Mode: Caveats, Number of Addressing Modes, Useful Side Effect, Obsolete Addressing Modes
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