汇编实验三报告-分类统计字符个数COUNT-CHAR

1、精选优质文档-倾情为你奉上 计算机 学院 计算机科学与技术 专业 8 班 学号 姓名 协作者_ 教师评定_实验题目 实验用2.3分类统计字符个数COUNT_CHAR 一、实验目的与要求学习用汇编语言编写与设计分支循环程序。题目：分类统计字符个数COUNT_CHAR二、实验内容程序接收用户键入的一行字符(字符个数不超过80个，该字符串用回车符结束)，并按字母、数字及其它字符分类计数，然后将结果存入以letter、digit和other为名的存储单元中。三、 程序代码;*Datasegmentstring1 db 'Input your string:$'string2 db &#

2、39;Digit:$'string3 db 'Letter:$'string4 db 'Other:$'Digit db 0Letter db 0Other db 0data ends;*prognam segment;-main proc far assume cs:prognam,ds:datastart:push ds ;保留现场sub ax,axpush axmov ax,datamov ds,axlea dx,string1 ;输出string1mov ah,9int 21hmov cx,80L1:mov ah,1 ;输入字符int 21hcm

3、p al,0dh ;若是回车则结束jz overcmp al,30h ;若小于30h(0)则others+1jb otherscmp al,39h ;若大于39h(9)则跳转L2继续比较ja L2jmp digits ;否则digits+1L2:cmp al,41h ;若小于41h(A)则others+1jb otherscmp al,5ah ;若大于5ah(Z)则跳转L3继续比较ja L3jmp letters ;否则letters+1L3:cmp al,61h ;若小于61h(a)则others+1jb otherscmp al,7ah ;若大于7ah(z)则others+1ja othe

4、rsjmp letters ;否则letters+1digits:inc digitjmp over1others:inc otherjmp over1letters: inc letterjmp over1over1: loop L1 over: call endlinelea dx,string2 ;输出string2mov ah,9int 21hsub ax,axmov al,digitcall displaycall endlinelea dx,string3 ;输出string3mov ah,9int 21hsub ax,axmov al,lettercall displaycall

5、 endlinelea dx,string4 ;输出string4mov ah,9int 21hsub ax,axmov al,othercall displayretmain endp;-endline proc near ;输出回车与换行mov ah,2mov dl,0ahint 21hmov ah,2movdl,0dhint 21hretendline endp;-display proc near ;输出结果mov dl,aladd dl,30h ;0的ascii码是30mov ah,2int 21hretdisplay endp;- prognam ends;*end start四、

6、 运行结果附录：由于这个实验一开始做错了题目，实验课上机检查是检查了该程序 实验2.2查找匹配字符串程序代码：;-newline macro;回车换行的宏定义 movah, 02h movdl, 0dh int21h movah, 02h movdl, 0ah int21hendm;-datasegmentmaxlenkdb8;关键字的最大长度factlenkdb?;关键字的实际长度keyword db8 dup(?);关键字的存储maxlensdb32;字符串的最大长度factlensdb?;字符串的实际长度sentencedb32 dup(?);字符串的存储info1db'Ente

7、r Keyword:$'info2db'Enter Sentence:$'mess0db'Match at location:$'mess1db'No match.$'mess2db?,?,'H of the sentence.$'data ends;-stacksegmentstackstackends;-code segment;-mainprocfarassume cs:code, ds:data, es:data, ss:stackstart:pushdssubax, axpushaxmovax, datamovd

8、s, axmoves, axmovah, 09h;输出字符串信息leadx, info1int21hmovah, 0ah;输入关键字leadx, maxlenkint21hbegin:newlinemovah, 09hleadx, info2int21hmovah, 0ah;输入字符串leadx, maxlensint21hnewlineleasi, keyword;关键字的首地址赋予sileabx, sentence;字符串的首地址赋予bxleadi, sentence;字符串的首地址赋予dimovdl, 00h;对dl清零cld;方向标志位清零，字符串地址递增again:movcl, fa

9、ctlenkrepzcmpsbjzmatchmov al, factlenssubal, factlenkjsnext1 inc alleasi, keywordincbxmovdi, bxincdxcmpdl, aljlagainnext1:leadx, mess1movah, 09hint21hjmpbeginmatch:leadx, mess0movah, 09hint21hmovax, bxleabx, sentencesubax, bxmov bx, 0001hadd ax, bxandax, 00ffhxchg ax,bxmov ch, 2rotate: mov cl,4h rol bl,cl mov al,bl and al,0fh add al,30h cmp al,3ah jl print a