8051 INSTRUCTION SET ADDRESSING MODES
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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MOV A, Rn
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MOV @Ri, A
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MOV A, @Ri
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MOV Rn, A
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Detailed explanation-1: -MOV: MOV is a mnemonic, which stands for “MOVE”. It is a type of data transfer instruction from source to destination. In this instruction 8-bit data value in the register will be moved to the accumulator.
Detailed explanation-2: -MOVX Ri, A This instruction will copy the contents of the accumulator to the external data memory location pointed by register Ri of selected register bank.
Detailed explanation-3: -MOV A, R1, will copy the contents of memory whose address is in R1 to the accumulator. The detailed solution to the question, MOV A, R1 will be provided here. Register Indirect Addressing Mode: In this type, the register will store the address of the target memory location and will be mentioned in the instruction.