【简答题】【消耗次数：1】
8086的16位标志寄存器FLAGS中OF=1表示运算结果[填空1]，ZF=1表示运算结果为零。PF=0表示运算结果的低8位中1的个数为[填空2]。
参考答案：
复制
纠错
相关题目
【简答题】
8086的16位标志寄存器FLAGS中IF=1表示CPU[填空1]中断，TF=1表示CPU进入[填空2]工作方式。
【判断题】
FLAGS称为标志寄存器，其中OF是溢出标志，SF是符号标志，ZF是零标志，CF是进位标志，当SF＝0时，表示结果为正数，当ZF＝1时，表示结果为0。
①
正确
②
错误
【单选题】
8086中8位算术运算指令执行后，结果为10010001B，则ZF和SF标志位的值为（）
①
ZF=0SF=1
②
ZF=0SF=0
③
ZF=1SF=1
④
ZF=0SF不确定
【单选题】
当8051单片机TMOD寄存器的GATE位为1时，表示。
①
定时/计数器为计数工作方式
②
定时/计数器为定时工作方式
③
定时/计数器为暂停工作方式
④
定时/计数器为门控工作方式
随机题目
【单选题】
1. We traveled overnight to Paris and arrived _______ 5 o’clock ______ the morning.
①
on; in
②
at; in
③
on
④
on
【单选题】
18. The mountain was ______ steep _____ few people in our city reached the top.
①
so…as
②
so…that
③
as…as
④
too…to
【单选题】
18. He ______ listen to pop music, but now he ______dancing.
①
is used to; used to
②
used to; is used to
③
used to; is used for
④
is used for; used to
【单选题】
4. One more week, ______ we will finish the task.
①
don’t they
②
didn’t they
③
did they
④
do they
【单选题】
5. I went to the doctor’s yesterday. I had to wait for half an hour before he _____ see me.
①
can
②
may
③
might
④
could
【单选题】
2. I was told yesterday that the company ______ me to Rome next week for a business conference.
①
should have sent
②
was going to send
③
should be sending
④
should send
【单选题】
17.Neither of them ____ the snake.
①
dares catches
②
dare to catch
③
dare catching
④
dare catch
【单选题】
12.You _____ return the book now. You can keep it till next week if you like.
①
cant
②
mustnt
③
neednt
④
may not
【单选题】
6. –Look, someone is coming. Guess who it _____ be?–I think it _____ be Tom.–I don’tthink it _____ be _____.
①
must; can; must; his
②
may; can; must; him
③
must; can; him
④
might; must; can; himself