一道编程题,将BH中的低四位清零,AX中的高四按位取反反。求大神指教

An Error Occurred Setting Your User Cookie
An Error Occurred Setting Your User Cookie
This site uses cookies to improve performance. If your browser does not accept cookies, you cannot view this site.
Setting Your Browser to Accept Cookies
There are many reasons why a cookie could not be set correctly. Below are the most common reasons:
You have cookies disabled in your browser. You need to reset your browser to accept cookies or to ask you if you want to accept cookies.
Your browser asks you whether you want to accept cookies and you declined.
To accept cookies from this site, use the Back button and accept the cookie.
Your browser does not support cookies. Try a different browser if you suspect this.
The date on your computer is in the past. If your computer's clock shows a date before 1 Jan 1970,
the browser will automatically forget the cookie. To fix this, set the correct time and date on your computer.
You have installed an application that monitors or blocks cookies from being set.
You must disable the application while logging in or check with your system administrator.
Why Does this Site Require Cookies?
This site uses cookies to improve performance by remembering that you are logged in when you go from page to page. To provide access without cookies
would require the site to create a new session for every page you visit, which slows the system down to an unacceptable level.
What Gets Stored in a Cookie?
This site stores nothing other than an automatically generated session ID no other information is captured.
In general, only the information that you provide, or the choices you make while visiting a web site, can be stored in a cookie. For example, the site
cannot determine your email name unless you choose to type it. Allowing a website to create a cookie does not give that or any other site access to the
rest of your computer, and only the site that created the cookie can read it.这是书上的一道习题,老师期末要改数据考,但是看不懂答案是什么意思,只有3行,请解释答案过程的意思,谢谢!
最近汇编要考试,我来回答。or的意思是“或”,先将16进制数转化为二进制数,以000fH为例转化为2进制数就是00/1111.而or的作用就是两个二进制数相同位置的数比较,如果都为0,则结果为0,否则结果为1,。000FH最后四位是1111,不管AX寄存器最后四位如何,相比较之后的就结果都为0.另外两个你可以百度一下AND和XOR的作用就懂了。
已有帐号?
无法登录?
社交帐号登录
混日子的大学生10上-04_图文_百度文库
两大类热门资源免费畅读
续费一年阅读会员,立省24元!
评价文档:
上传于||文档简介
&&微​机​原​理​ ​ ​课​件
大小:200.50KB
登录百度文库,专享文档复制特权,财富值每天免费拿!
你可能喜欢您的位置: &
高性能荧光色料
优质期刊推荐JOURNAL MENUFIND ISSUES
FIND ARTICLES
GET ACCESS
FOR CONTRIBUTORS
ABOUT THIS JOURNAL
SPECIAL FEATURES
Bao-Han Zhou, Jiang-Lan Qu andAn-Xin WuDOI:&10.
Acta Crystallographica Section E pages o,
ARTICLE TOOLS}

我要回帖

更多关于 30岁学编程成为大神 的文章

更多推荐

版权声明:文章内容来源于网络,版权归原作者所有,如有侵权请点击这里与我们联系,我们将及时删除。

点击添加站长微信