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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What is the Result of RR A instruction if accumulator contains 1000 0000.
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0000 0001
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0000 0000
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0100 0000
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0000 0010
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Explanation:
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: -Example: The instruction, MOV DPTR, 1234H will load the value 1234H into the Data Pointer. DPH will hold 12H and DPL will hold 34H.
Detailed explanation-3: -Unused locations, 80H to FFH, are reserved and must not be used by the 8051 programmer. Instruction MOV 80H, 92H will show an error because 92H is not bit addressable and is reserved and must not be used by 8051 programmer.
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