设BL=05H,要使结果BL=0AH,应执行的指令是A.NOT BLB.AND BLC.XOR BL,0FHD.OR BL,0FH
设BL=05H,要使结果BL=0AH,应执行的指令是
A.NOT BL
B.AND BL
C.XOR BL,0FH
D.OR BL,0FH
相关考题:
已知指令序列为: ADD AL,BL JNO L1 JNC L2 若AL和BL的内容有以下4组给定值,选择( )组给定值使该指令序列转向L2执行。A.(AL)=05H, (BL)=0F8HB.(AL)=81H, (BL)=0A2HC.(AL)=0B6H, (BL)=87HD.(AL)=68H, (BL)=74H
己知指令序列为: ADD AL, BL JNO L1 JNC L2若AL和BL的内容有以下四组给定值,其中( )组给定值使该指令序列转向L2执行。A.(AL)=05H, (BL)=0F8HB.(AL)=81H,(BL)=0A2HC.(AL)=68H, (BL)=74HD.(AL)=0B6H,(BL)=87H
设(AL)=-68,(BL)=86,执行SUB AL,BL指令后,正确的结果是______。A.SF=1B.CF=1C.ZF=1D.OF=1