题目内容

If ()=20FFH, the contents of DPH after execution of instruction “INC DPTR” will be ( )

A. 20H
B. 21H
C. 00H
D. FFH

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Bit-addressable locations of the 8051 include( )

A. 16 internal RAM bytes
B. majority of SFRs
C. I/O ports
D. all of the candidates

The 8051 has bit-level instructions for ( )

AND
B. OR
C. complement
D. all of the candidates

Which of the following SFRs is bit-addressable? ( )

A. DPH
B. DPL
C. B
D. TMOD

The 8051 does not have bit-level instructions for ( )

AND
B. OR
C. complement
D. Exclusive OR (XOR)