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1、汇编语言实验报告AssemblyLanguageProgrammingLab Reports______________________________________________________________________________班级：姓名学号：实验日期：学院：专业：实验顺序：原创：___实验名称：中断程序设计实验分数：_______考评日期:________指导教师：______________________________________________________________________________实验目的一．掌握中
2、断的类型，软件中断和硬件终端。二．掌握中断处理的过程，理解中断类型，中断向量。三．掌握系系统中断以及功能调用。四．可以自己设计中断程序______________________________________________________________________________实验环境操作系统：windows8编译程序：masm5.0______________________________________________________________________________实验步骤及结果分析1.设计自己的中断.modelsmall.
3、stack.codemessdb'press1touseselfintereput$'mess2db'wrong'mess3db'MynameisZhangXu$'mainprocfarstart:movax,@codemovds,axmovdx,offsetmynamemovax,segmynamemovds,axmovah,60hmovah,25hint21h;设置中断向量movdx,offsetmessmovax,segmessmovds,axmovah,9hint21hmovdl,0dhmovah,2int21hmovdl,0ahint21hmova
4、h,1int21hcmpal,'1'jnzm2movah,60hint21hjmpnextm2:movdl,0dhmovah,2int21hmovdl,0ahint21hmovdx,offsetmess2movax,segmess2movds,axmovah,9hint21hnext:mainendpmynameprocfarstimovdl,0dhmovah,2int21hmovdl,0ahint21hmovcx,10bef:movdl,'*'movah,2int21hloopbefmovax,segmess3movax,dsmovdx,offsetmes
5、s3movah,9int21hmovcx,10aft:movdl,'*'movah,2int21hloopaftcliiretmynameendpendstart2，对原有的中断进行修改.modelsmall.stack.codemess1db0ah,0dh,'enterinterrupt!',0ah,0dh,'$'mess2db0ah,0dh,'exitinterrupt!$'mess3db0ah,0dh,'ContinueorQuit(c/q)?$';主程序mainprocfarstart:movax,@codemovds,ax;中断设置;取出原中断向量
6、moval,0movah,35h;取出原来的0号中断向量int21h;放在ES:BX中pushes;入栈保存pushbxpushds;设置新的中断向量;相当于25h号功能movdx,offsetshowerr;获得子程序偏移地址movax,segshowerr;获得子程序段地址movds,axmovax,0moves,ax;0段，向量表movbx,0;现在的0号movcl,2shlbx,clmovwordptres:[bx],dx;中断向量放入中断向量表中movwordptres:[bx+2],ds;应用部分conti:movdx,offsetmess1;显
7、示提示1movah,9int21hint0;触发0号中断movdx,offsetmess2;显示提示2movah,9int21hmovax,15movbl,0idivbl;除0,触发0号中断movdx,offsetmess3;显示提示3movah,9int21hmovah,1;输入选择int21hcmpal,'c'jecontiquit:popds;弹出保存的数据popbxpopesmoval,0;恢复原来的0号movah,25h;中断向量放入中断向量表中int21hmovax,4c00h;返回DOSint21hmainendp;中断子程序showerrpr
8、ocnearshowbegin:jmpshortsh
