指出下列标志位的含义: (1)CF (2)OF (3)AF (4)ZF (5)DF
指出下列标志位的含义: (1)CF (2)OF (3)AF (4)ZF (5)DF
相关考题:
若X和Y均为无符号整数,且X≤Y,则依次执行MOV AX,X和CMP AX,Y指令后,标志位CF和ZF的状态是:A.CF=0且ZF=0B.CF=1且ZF=1C.CF=0或ZF=0D.CF=1或ZF=1
当执行完下列两条指令后,标志位CF和SF的值为()。MOVAL,0C4HADDAL,9DH当执行完下列两条指令后,标志位CF和SF的值为()。MOVAL,0C4HADDAL,9DH A、0,0B、1,1C、0,1D、1,0
若(AX)=0122H,四个标志位CF、SF、ZF、OF 的初始状态为0,执行指令SLIBAX,OFFFH后,这四个标志位的状态是( )。A.(CF)=0, (SF)=0, (ZF)=0, (OF)=0B.(CF)=1, (SF)=1, (ZF)=0, (OF)=0C.(CF)=0, (SF)=0, (ZF)=1, (OF)=1D.(CF)=1, (SF)=1, (ZF)=1, (OF)=1
若(AX)=0122H,四个标志位CF、SF、ZF、OF的初始状态为0,执行指令SUB AX, 0FFFH后,这四个标志位的状态是______。A.(CF)=O,(SF)=0,(ZF)=0,(OF)=0B.(CF)=1, (SF)=1, (ZF)=0, (OF)=0C.(CF)=0, (SF)=0, (ZF)=1, (OF)=1D.(CF)=1, (SF)=1, (ZF)=1, (OF)=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, (2P)=0, (OF)=0B.(CF)=1, (SF)=1, (2P)=0, (OF)=0C.(CF)=0, (SF)=0, (ZP)=1, (OF)=1D.(CF)=1, (SF)=1, (ZF)=1, (OF)=1
用8位补码完成下列运算,用十进制“真值”的格式给出运算结果,并指出运算后CF、OF、ZF、SF、PF标志位的状态。 (1)127+126 (2)126-127 (3)-100-120 (4)-100-(-120)
问答题用8位补码完成下列运算,用十进制“真值”的格式给出运算结果,并指出运算后CF、OF、ZF、SF、PF标志位的状态。 (1)127+126 (2)126-127 (3)-100-120 (4)-100-(-120)
问答题简述8086/8088CPU的6个状态标志位SF、ZF、PF、CF、AF、OF的含义。