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1、南昌大学实验报告学生姓名：学号：6专业班级：电三106班实验类型：□验证□综合设计□创新实验日期：实验成绩：实验3分支程序实验一．实验目的1．掌握单分支、双分支、多分支程序的设计方法；2．掌握利用DEBUG或CODEVIEW修改参数、检查结果的方法；1．熟悉汇编语言源程序的编辑、汇编、连接及调试过程。二．实验内容1．猜数程序,预设一数字字符M,从键盘输入一个数字字符N,判断：若NM则显示“TOOSMALL”;否则显示“YOURARERIGHT”datasegmentmdw'm
2、'message0db'IFyouwantexit,Pleaseinputspace.'db0dh,0ah,'Pleaseinputacharacter:$'message1db0dh,0ah,'TOOBIG'db0dh,0ah,'$'message2db0dh,0ah,'TOOSMALL'db0dh,0ah,'$'message3db0dh,0ah,'YOURARERIGHT'db0dh,0ah,'$'dataendscodesegmentassumecs:code,ds:datastart:movax,d
3、atamovds,axagain:leadx,message0;提示输入字符movah,09hint21hmovah,01hint21h;leadx,message4;movah,09;int21hcmpal,'';如果输入空格，则退出jeexitmovah,0movbx,mcmpax,bx;进行比较jaabovejbbelowleadx,message3movah,09int21hjmpexitabove:;其实这里可以改成：leadx,message1;above:leadx,message1movah,
4、09;jmpoutputint21h;below:leadx,message2jmpagain;output:movah,09below:;int21hleadx,message2;jmpagainmovah,09h;int21h;可以少写2行。jmpagain;（实验总结就写在这了。）exit:movah,4chint21hcodeendsendstart1．编写一个程序，判别键盘上输入的字符；若是1-9字符，则显示“ITISADIGITAL”；若为A-Z或a-z字符，均显示“ITISALOWCASELET
5、TER”；若是回车字符(其ASCII码为0DH)，则结束程序，若为其它字符则不显示，继续等待新的字符输入。datasegmentmessage0db0dh,0ah,'Ifyouwantexit.PleaseinputENTER.'db0dh,0ah,'Pleaseinputacharacter:$'message1db0dh,0ah,'TIISADIGITAL.'db0dh,0ah,'$'message2db0dh,0ah,'ITISALOWCASELETTER.'db0dh,0ah,'$'datae
6、ndscodesegmentassumecs:code,ds:datastart:movax,datamovds,axagain:leadx,message0movah,09int21hmovah,01int21hmovah,0;ah清0cmpax,0dhjeexitcmpax,'0'jbagain;小于0，则跳转重新输入cmpax,'9'jbeoutput1;大于0，小于9，则跳转输出cmpax,'A'jbagaincmpax,'Z'jbeoutput2;大于A，小于Z，则跳转输出cmpax,'a'jbag
7、aincmpax,'z'jbeoutput2;大于a，小于z，则跳转输出jmpagainoutput1:leadx,message1movah,09int21hjmpexitoutput2:leadx,message2movah,09int21hexit:movah,4chint21hcodeendsendstart1．预留字符串口令,输入口令串与预留密码串比较。若匹配则显示“MATCH”,否则显示“NOMATCH!,PROGRAMTERMINATED!”datasegmentpassworddb'abcde
8、f$'countEQU6inputdb20,?,20dup(?)message1db'Pleaseinputthepassword:$'message2db0dh,0ah,'MATCH$'message3db0dh,0ah,'NOMATCH!,PROGRAMTERMINATED!$'dataendscodesegmentassumecs:code,ds:datastart:movax,datamov
