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[主观题]
累加器A的值为0C5H(11000101B),(C)=0,执行RLCA指令后,(A)=()B,(C)=()。
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A.11000101
B.01000101
C.11000110
D.01100101
执行下列三条指令后 MOV A,#66H ADD A,#58H DA A 累加器A的内容为()
A.14H
B.1EH
C.24H
D.BEH
A.A=FFHPC=00HPSW=FFH
B.A=00HPC=0000HPSW=00H
C.A=07HPC=0000HPSW=FFH
D.A=00HPC=00HPSW=00H
A.(A)=74H
B.(R2)=74H
C.(A)=75H
D.(R2)=75H
A.85H
B.20H
C.0AFH
D.34H
指令执行后可能改变了累加器内容的()
A OR AL,00H
B AND AL,0FFH
C XOR AL,AL
D TEST AL,0FFH