In 8051 family instructions, which one of the following option is true?
A. An opcode is one byte long for each instruction
B. An opcode has variable number of bits in instruction
C. An opcode must have operands specified in each instruction
D. An opcode cannot coexist with the PC bits
Answer: Option A
Related Questions on Microprocessors and Microcontrollers
A. Circuit A has more gates than circuit B
B. Circuit B has more gates than circuit A
C. Circuit A has the same number of gates as circuit B
D. None of the above
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].
A. Less than
B. Greater than
C. The same as
D. Cannot be determined

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