8086/8088汇编语言中伪指令的定义如下: VAR DB 2DUP (1,2,3DUP(3),2DUP (1,0)) 则在VAR存储区前10个字节单元的数据是______。
A. 1,2,3,3,2,1,0,1,2,3
B. 1,2,3,3,3,1,0,1,0,1
C. 1,2,3,3,3,3,2,1,0,1
D. 2,1,2,3,3,2,1,0,2,1
若(AX)=0122H,4个标志位CF、SF、ZF、OF的初始状态为0,执行指令SUB AX,0FFFH后,这4个标志位的状态是________。
A. (CF)=0,(SF)=0,(ZF)=0,(OF)=0
B. (CF)=1,(SF)=1,(ZF)=0,(OF)=0
C. (CF)=0,(SF)=0,(ZF)=1,(OF)=1
D. (CF)=1,(SF)=1,(ZF)=1,(OF)=1