Define the register addressing mode, Computer Engineering

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Q. Define the Register Addressing mode?

When operands are taken from registers implicitly or explicitly it is known as register addressing. These operands are termed as register operands. Operands associated withmemory locationsare known as memory operands. In this technique a register address is specified in instruction. That particular register comprises the operand. It is theoretically similar to direct addressing scheme besides that register name or number is substituted for memory address. Sometimes the address of register can be presumed implicitly for illustration the Accumulator register in old machines.

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Figure: Register Addressing


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