题目内容

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

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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)

Which of the following instruction is invalid? ( )

A. SETB C
B. SETB B
C. ANL C, 00H
D. MOV C, 10H