A. 2FH
B. 25H
C. 5FH
D. F5H
MOV A,1FH ;(1FH)→A,A=59H
ADDC A,20H ;A+(20H)+Cy→A,A=7EH,Cy=0
CLR A ;0→A,A=0
ORL A,@R0 ;A∨(R0)→A,A=B6H=10110110B
RL A ;A=01101101B=6DH
ANL A,#39H ;A∧39H→A,A=00101001B=29H
RRC A ;A=00010100B=14H,Cy=1
CPL A ;A=11101011B=EBH
MOV R0,#50H ;R0=50H
MOV A,@R0 ;A=(50H)
RL A ;[A=(50H)]×2
MOV R1,A ;R1=[A=(50H)]×2
RL A ;[A=(50H)]×2×2
RL A ;[A=(50H)]×2×2×2
ADD A,R1 ;A=10×(50H)
MOV @R0,A ;(50H)←(50H)×10
B.06H,0DH
C.0DH,06H
D.0DH,0DH
CLR A ;A=0
SUBB A,#59H ;A-59H-Cy→A,A=A7H=10100111B,Cy=1
CPL A ;A=01011000B=58H
ORL A,R1 ;A∨R1→A,A=01111011B=7BH
RLC A ;A=11110111B=F7H,Cy=0
ANL A,@R1 ;A∧(R1)→A,A=01100011B=63H
RR A ;A=10110001B=B1H
XRL A,59H ;A=11000010B=C2H
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