若R1=30H A=40H (30H)=60H (40H)=08H。试分析执行下列程序段后A的变化。 MOV A @R1 MOV @R1 40H MO

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若R1=30H,A=40H,(30H)=60H,(40H)=08H。试分析执行下列程序段后A的变化。 MOV A,@R1 MOV @R1,40H MOV 40H,A MOV R1,#7FH 则A=()

A.40H

B.08H

C.7FH

D.60H

若R1=30H A=40H (30H)=60H (40H)=08H。试分析执行下列程序段后A的变化。 MOV A @R1 MOV @R1 40H MO

热搜:段寄存器cs=1200h,指令指针寄存器ip=ff00h