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The instruction that is used to complement or invert the bit of a bit addressable SFR is

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The instruction that is used to complement or invert the bit of a bit addressable SFR is

(a) CLR C

(b) CPL C

(c) CPL Bit

(d) ANL Bit

The question was asked in an interview for job.

This intriguing question comes from 8051 Instruction Set -1 in portion Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
Right answer is (c) CPL Bit

The explanation is: The instruction, CPL Bit is used to complement or invert the bit of a bit addressable SFR or RAM.

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