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The instruction, ADD A, R7 is an example of

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The instruction, ADD A, R7 is an example of

(a) register instructions

(b) register specific instructions

(c) indexed addressing

(d) none

I got this question in a national level competition.

Question is from Addressing Modes of 8051 in portion Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
The correct option is (a) register instructions

Explanation: In register instructions addressing mode, operands are stored in the registers R0-R7 of the selected register bank. One of these registers is specified in the instruction.

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