CPU与汇编语言上机考试题

.请任意输入一个字符串，将该串倒序后在屏幕上显示。.modelsmall.stack10h.datastringdb100dup(50)#db：definedbyte,定义100个字节，初始化为50.codestart:movax,@datamovds,ax #ds：数据段寄存器，对应全局变量leadx,string#lea：存储器地址偏移量存入dxmovah,0ah#0ah：中断号，从键盘接收字符串并放入缓冲区(回车键结束)。缓冲区首地址存于dx。缓冲区第2字节开始实际存字符。int21h #转入中断子程序的入口movdl,0ah#0ah：换行符的asc码movah,02h#02h：显示输出int21hxorbh,bhmovbl,string[1]#缓冲区的第0字节存入最多接收的字符数，第1字节存放实际输入的字数lop:movdl,string[bx+1]movah,02hint21hdecbxjnzlopmovah,4ch#4ch：退出程序int21hendstart.请任意输入一个字符串，统计其中空格和A的个数，并将结果显示在屏幕上。.modelsmall.databufdb100dup(50).databufdb100dup(50)count1db00hcount2db00h定义100字节初始化50初始化0space个数A个数str1db'numofspaceis:$'str2db'numofAis:$'.codestart:movax,@datamovds,axleadx,bufmovah,0ahint21hmovdl,0ah #换行movah,02h #显示输出int21hxorbh,bh #0movbl,buf[1]lop:moval,buf[bx+1]#最后一个字符xoral,'' #space?jzspacemoval,buf[bx+1]xoral,'A'jzchar_Anext:decbxjnzlopjzshowspace:addcount1,01hjmpnextchar_A:addcount2,01hjmpnextshow:leadx,str1movah,09h#显示字符串int21hmovdl,count1adddl,30hmovah,02hint21h

#换行##换行#输出movdl,count2adddl,30hmovah,02hint21hmovdl,0ahmovah,02hint21hmovah,4chint21hendstart.请任意输入一个字符串，将其中的空格全部删除，并将结果显示在屏幕上。.modelsmall.stack10h.databufdb100dup(50).codestart:movax,@datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hxorbh,bhmovbl,buf[1]movsi,0002hlop:moval,buf[si]xoral,''jznextjnzshownext:decbxjzbreakincsijmplopshow:movdl,buf[si]movah,02hint21hjmpnextbreak:movah,4chint21hendstart.请任意输入一个字符串，将其中A换成CC,并将结果显示在屏幕上。.modelsmall.stack10h.databufdb100dup(50).codestart:movax,@datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hxorbh,bhmovbl,buf[1]movsi,0002hlop:moval,buf[si]xoral,'A'jzshow_ccjnzshow_charnext:decbxjzbreakincsijmplopshow_cc:movdl,'C'movah,02hint21hint21hjmpnextshow_char:movdl,buf[si]movah,02hint21hjmpnextbreak:movah,4chint21hendstart.请任意输入一个字符串，将其中大写字母换成小写字母，并将结果显示在屏幕上。.modelsmall.stack10h.databufdb100dup(50).codestart:movax,@datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hxorbh,bhmovbl,buf[1]leasi,buf+2 ;cld ;将标志寄存器的方向标志位df清零lop:lodsb ；将子串中SI指针所指的一个字节装入ALcmpal,'A'jnbifupjbshow_charnext:decbxjnzlopjzbreakifup:cmpal,'Z'jbeshow_downjashow_charshow_char:movdl,almovah,02hint21hjmpnextshow_down:addal,'a'-'A'movdl,almovah,02hint21hjmpnextbreak:movah,4chint21hendstart.请任意输入一个字符串，将其中的英文字母全部删除，并将结果显示在屏幕上。.modelsmall.stack10h.databufdb100dup(50).codestart:movax,@datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hxorbh,bhmovbl,buf[1]leasi,buf+2cldlop:lodsbcmpal,'A'jnbifupjbshow_charnext:decbxjnzlopjzbreakifup:cmpal,'Z'jbenextcmpal,'a'jnbifdownifdown:cmpal,'z'jbenextjmpshow_charshow_char:movdl,almovah,02hint21hjmpnextbreak:movah,4chint21hendstart一、.现有一组字符串为data,name,time,file,code,path,user,exit,quit,text,请编写程序从键盘输入4个字符的字符串，若存在将其修改为disk,并将结果在显示器上显示。.modelsmall ;说明用的简略定义，这句话不用管.stack10h ;堆栈段，一般这么写;STACKSEGMENT;DB20DUP(?);STACKENDS.datastringdb0ah,'data,name,time,file,code,path,user,quit,text$'bufdb100dup(50)rpldb'disk?;数据段一般格式;DATASEGMENT; stringdb0ah,?data,name,time,file,code,path,user,quit,text$'; bufdb10dup(50); rpldb'disk?

.codestart:.codestart:movmovmovleamov；代码段一般格式;CODESEGMENT;ASSUMECS:CODE,DS:DATA,SS:STACK;STARTPROCFAR;PUSHDX;MOVAX,0;PUSHAX;MOVAX,DATAS;MOVDS,AX 这句之后的copy进来就能用;你要写的代码;STARTENDP;CODESENDS;ENDSTARTax,@datads,axes,axdx,buf ;10号DOS调用输入字符串ah,0ahint21hleasi,string[1] ;设置循环初值leadi,buf[2]cldlop:movcx,0004hrepzcmpsb;比较输入字符串与SI当前指向的字符串jnznext ;判断字符串是否相等，不等直接跳出andcx,cx ;判断是否四个字符都相等jzreplacejmpnextnext:addsi,cxmoval,[si]cmpal,'$' ;判断是否到字符串结尾jzbreakincsileadi,buf[2]jmplop;替换;替换subsi,0004hmovdi,sileasi,rplmovcx,0004hrepmovsbbreak: ；输出leadx,stringmovah,09hint21h.exitendstartDATASSEGMENTstringdb0ah,'data,name,time,file,code,path,user,quit,text$bufdb10dup(50)rpldb'disk?DATASENDSSTACKSSEGMENTdb20dup(?)STACKSENDSCODESSEGMENTASSUMECS:CODES,DS:DATAS,SS:STACKSSTART:MOVAX,DATASMOVDS,AXmoves,axleadx,bufmovah,0ahint21hleasi,string[1]leadi,buf[2]cld【清方向标志位，把标志(flags)寄存器的DF=0,地址指针si、di增加；如是std则把DF=1,地址指针减小也。使)F的值为0,在执行串操作时，使地址按递增的方式变化，这样便于调整相关段的的当前指针。这条指令与STD(SeTDirectionflag)的执行结果相反，即置DF的值为1。】lop:movcx,0004hrepzcmpsb【比较输入字符串与SI当前指向的字符串】jnznextandcx,cxjzreplacejmpnextnext:addsi,cxmoval,[si]cmpal,，$，jzbreakincsileadi,buf[2]jmplopreplace:subsi, 0004h【修正指针的值，指向下一个数据】movdi, sileasi, rplmovcx, 0004hrepmovsbbreak:leadx,stringmovah,09hint21hMOVAH,4CHINT21HCODESENDSENDSTART.现有一组字符串为ram,yes,red,the,get,for,and,key,not,may,请编写程序将他们按ASCII大小排序，并在显示器上显示。.modelsmall.stack10h.datarawdb0ah,'ram,yes,red,the,get,for,and,key,not,may$'countequ($-raw-1)/4.codestart:movax,@datamovds,axxorbh,bhmovbl,countcldlop:leasi,raw[1]decbxandbx,bxjzbreaklop1:movcx,0003hlop2:moval,[si]cmpal,[si+4]jaexchangejbnoexchdeccxjznextincsijmplop2next:addsi,cxincsimoval,[si+4]xoral,'$'jzlopincsijmplop1noexch:deccxjmpnextexchange:moval,[si]xchgal,[si+4]xchgal,[si]deccxjznextincsijmpexchangebreak:leadx,rawmovah,09hint21h.exitendstart.现有一组字符串为data,name,time,file,code,path,user,exit,quit,text,请编写程序从键盘输入4个字符的字符串，若存在将其删除，并在显示器上显示。datasegmentbuf1db'data,name,time,file,code,path,user,quit,text$'buf2db50dup(?)inputdb10dup(50)dataendscodesegmentassumeds:data,cs:codestart:movax,datamovds,axmoves,axleadx,inputmovah,0ahint21hleabx,buf2leasi,buf1leadi,input[2]movcx,0004hcldlop:cmpsbjnzcopydeccxjzdeletejmplopnext:moval,[si-1]cmpal,'$'jzbreakleadi,input[2]movcx,0004hjmplopcopy:addsi,cxsubsi,0005hmovdi,bxmovcx,0005hrepmovsbmovbx,dijmpnextdelete:incsijmpnextbreak:moval,'$'mov[bx-1],almovdl,0ahmovah,02hint21hleadx,buf2movah,09hint21hmovah,4chint21hcodeendsendstart.现有一组字符串为data,name,time,file,code,path,user,exit,quit,text,请编写程序将上述字符串排序(升序)并插入disk使其人仍然有序，并在显示器上显示。datasegmentbuf1db'data,name,time,file,code,path,user,quit,text$'count1equ($-buf1)/5buf2db'data,name,time,file,code,path,user,quit,text,disk$'count2equ($-buf2)/5dataendsstacksegmentstackdb10dup(?)stackendscodesegmentassumeds:data,cs:codesortprocfarpushsilop:popsipushsidecbxandbx,bxjzbreaklopl:movcx,0004hlop2:moval,[si]cmpal,[si+5]jaexchangejbnoexchdeccxjznextincsijmplop2next:moval,[si+5]xoral,'$'jzlopincsijmploplexchange:moval,[si]xchgal,[si+5]xchgal,[si]incsideccxjznextjmpexchangenoexch:addsi,cxjmpnextbreak:movdl,0ahmovah,02hint2lhpopdxmovah,09hint2lhretsortendpstart:movax,datamovds,axmovbx,countl+1leasi,buflcallsortmovbx,count2+1leasi,buf2callsortmovah,4chint21hcodeendsendstart.键盘输入一个十进制数(字类型)，以十六进制的形式输出。datasegmentbufdb10dup(50)hexdb4dup(0),'h',0ah,'$'coefdw0001htempdw0000hdataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axleadx,bufmovah,0ahint21hmovbl,buf[1]xorbh,bhxorax,axmoval,01hlop:moval,buf[bx+1]xorah,ahsubal,30hmovdx,coefmuldxaddtemp,axmovax,coefmovdx,10muldxmovcoef,axdecbxjzshowjmplopshow:movbx,0movcl,12lop1:movax,tempshrax,clandal,000fhmovhex[bx],alsubcl,4incbxcmpbx,4jzlop2jmplop1movbx,4lop2:moval,hex[bx-1]cmpal,9jacharjmpnumnext:decbxjzbreakjmplop2char:addhex[bx-1],'a'-0ahjmpnextnum:addhex[bx-1],'0'jmpnextbreak:movdl,0ahmovah,02hint21hleadx,hexmovah,09hint21hmovah,4chint21hcodeendsendstartax存字al存字节cbw字节一字(扩展)读取输入数值入bxxchgax,bx[存入axmovcx,10mulcxaddbx,ax循环移位：rol.键盘输入一个十进制数(字类型)，以二进制的形式输出。datasegmentbufdb10dup(50)hexdb16dup(0),'b',0ah,'$'coefdw0001htempdw0000hdataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axleadx,bufmovah,0ahint21hmovbl,buf[1]xorbh,bhxorax,axmoval,01hlop:moval,buf[bx+1]xorah,ahsubal,30hmovdx,coefmuldxaddtemp,axmovax,coefmovdx,10muldxmovcoef,axdecbxjzshowjmplopshow:movbx,0movcl,15lop1:movax,tempshrax,clandal,0001hmovhex[bx],aladdhex[bx],30hsubcl,1incbxcmpbx,16jzbreakjmplop1break:movdl,0ahmovah,02hint21hleadx,hexmovah,09hint21hmovah,4chint21hcodeendsendstart.键盘输入一个二进制数(字类型)，以十六进制的形式输出。datasegmentbufdb20dup(50)tempdw0000hcoefdw0001haimdb4dup(0),'h',0ah,'$'dataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hmoval,buf[1]xorah,ahmovsi,axlop:moval,[si+1]subal,30hxorah,ahmovdx,coefmuldxaddtemp,axmovax,coefmovdx,0002hmuldxmovcoef,axdecsijzshowjmplopshow:movbx,0movcl,12lopl:movax,tempshrax,clandal,000fhmovaim[bx],alsubcl,4incbxcmpbx,4jzlop2jmplop1movbx,4lop2:moval,aim[bx-1]cmpal,9jacharjmpnumnext:decbxjzbreakjmplop2char:addaim[bx-1],'a'-0ahjmpnextnum:addaim[bx-1],'0'jmpnextbreak:movdl,0ahmovah,02hint21hleadx,aimmovah,09hint21hmovah,4chint21hcodeendsendstart.键盘输入一个二进制数（字类型），以十进制的形式输出。datasegmentbufdb20dup(50)tempdw0000hcoefdw0001haimdb5dup(0),0ah,'$'dataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hmoval,buf[1]xorah,ahmovsi,axlop:moval,[si+1]subal,30hxorah,ahmovdx,coefmuldxaddtemp,axmovax,coefmovdx,0002hmuldxmovcoef,axdecsijzshowjmplopshow:movsi,5movax,tempmovbx,10move:xordx,dxdivbxmovaim[si-1],dladdaim[si-1],30hdecsijzbreakjmpmovebreak:movdl,0ahmovah,02hint21hleadx,aimmovah,09hint21hmovah,4chint21hcodeendsendstart.键盘输入一个十六进制数(字类型)，以十进制的形式输出。datasegmentbufdb10dup(50)tempdw0000hcoefdw0001haimdb5dup(0),0ah,'$'dataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hmoval,buf[1]xorah,ahmovsi,axlop:moval,[si+1]cmpal,'a'jbnumjmpcharnext:xorah,ahmovdx,coefmuldxaddtemp,axmovax,coefmovdx,0010hmuldxmovcoef,axdecsijzshowjmplopnum:subal,30hjmpnextchar:subal,'a'-10jmpnextshow:movsi,5movax,tempmovbx,10move:xordx,dxdivbxmovaim[si-1],dladdaim[si-1],30hdecsijzbreakjmpmovebreak:movdl,0ahmovah,02hint21hleadx,aimmovah,09hint21hmovah,4chint21hcodeendsendstart.键盘输入一个十六进制数(字类型)，以二进制的形式输出。datasegmentbufdb50dup(50)tempdw0000hcoefdw0001hhexdb16dup(0),'b',0ah,'$'dataendscodesegmentassumecs:code,ds:datainputprocfarleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hretinputendpprintprocfarmovbx,0movcl,15lop1:movax,tempshrax,clandal,0001hmovhex[bx],aladdhex[bx],30hsubcl,1incbxcmpbx,16jzbreakjmploplbreak:movdl,0ahmovah,02hint21hleadx,hexmovah,09hint21hretprintendpstart:movax,datamovds,axcallinputmoval,buf[1]xorah,ahmovsi,axlop:moval,[si+1]cmpal,'a'jbnumjmpcharnext:xorah,ahmovdx,coefmuldxaddtemp,axmovax,coefmovdx,0010hmuldxmovcoef,axdecsijzshowjmplopnum:subal,30hjmpnextchar:subal,'a'-10jmpnextshow:callprintmovah,4chint21hcodeendsendstart⑴输入、转换及显示均用子程序形式书写。⑵程序能够循环接收不同的十进制数，并对之处理，当按下非数字键时退出主程序，返回操作系统。四、.将一组有符号数中的负数求和，并统计负数的个数，并在屏幕上以十进制的形式显示结果。38H，4AH，0C5H，83H，9CH，0B4H，7FH，0C4H，05H，0F5Hdatasegmentbufdb38h,4ah,0c5h,83h,9ch,0b4h,7fh,0c4h,05h,0f5hcountequ$-bufsumdw0coutdw0tempdw0aimdb5dup(0),0ah,'$'dataendscodesegmentassumecs:code,ds:dataprintprocfarmovsi,5movax,tempmovbx,10move:xordx,dxdivbxmovaim[si-1],dladdaim[si-1],30hdecsijzbreakjmpmovebreak:leadx,aimmovah,09hint21hretprintendpstart:movax,datamovds,axmovsi,countxorcx,cxxorah,ahlop:moval,[si-1]cmpal,0jlnegativejmpnextnext:decsijzshowjmplopnegative:addcout,1cbwsubsum,axjmpnextshow:movax,coutmovtemp,axmovdl,0ahmovah,02hint21hcallprintmovdl,0ahmovah,02hint21hmovax,summovtemp,axmovdl,'-'movah,02hint21hcallprintmovah,4chint21hcodeendsendstart.键盘输入十个数，分别统计0到9,10到99,100以上的数的个数，并显示结果。datasegmentstr1db'0〜9:$'str2db'10〜99:$'str3db'>100:$'bufdb10dup(50)countdb3dup(0)dataendscodesegmentassumecs:code,ds:datastart:movax,datamovds,axmovcx,10lop:leadx,bufmovah,0ahint21hmovbl,buf[1]xorbh,bhdecblmoval,01haddcount[bx],aldeccxjzshowmovdl,0ahmovah,02hint21hjmplopshow:movsi,3iften:moval,count[si-1]xoral,0ahjzchangedecsijzbreakjmpiftenchange:movcount[si-1],'a'-'0'break:leadx,str1movah,09hint21hmovdl,count[0]adddl,30hmovah,02hint21hmovdl,0ahint21hleadx,str2movah,09hint21hmovdl,count[1]adddl,30hmovah,02hint21hmovdl,0ahint21hleadx,str3movah,09hint21hmovdl,count[2]adddl,30hmovah,02hint21hmovdl,0ahint21hmovah,4chint21hcodeendsendstart.键盘输入两组数743216、527864,按BCD码求和，并将结果显示在屏幕上。datasegmentbuf1db20dup(50)buf2db20dup(50)buf3db20dup(50)dataendscodesegmentassumecs:code,ds:datainputprocfarmovah,0ahint21hmovbx,dxmoval,[bx+1]xorah,ahmovsi,axlop:moval,30hsub[bx+si+1],aldecsijzbreakjmplopbreak:movdl,0ah;空格，换行movah,02h;输出换行int21hretinputendpstart:movax,datamovds,axleadx,buf1callinputleadx,buf2callinputmovbl,buf1[1]xorbh,bhxorah,ahmovbuf3[bx+1],'$'add_lop:moval,buf1[bx+1]addal,buf2[bx+1]addal,ahxorah,ahaaamovbuf3[bx],aladdbuf3[bx],30hdecbxjzifcpjmpadd_lopifcp:andah,ahjznocpjmpcpnocp:leadx,buf3[1]jmpshowcp:moval,0addal,ahmovbuf3[bx],aladdbuf3[bx],30hleadx,buf3show:movah,09hint21hmovah,4chint21hcodeendsendstart.键盘输入下列两组十进制数，求其和，并将结果显示在屏幕上3578941846531425.键盘输入一串二进制数1ah,7ch,0bah,3ah,45h,63h求其和，并将结果显示在屏幕上。.从键盘输入一串可显示字符(以回车符结束)，并按字母、数字、空格分类计数，然后显示出这三类统计的结果。datasegmentbufdb100dup(50)strldb'Thenumofnumis:$'str2db'Thenumofcharis:$'str3db'Thenumofspaceis:$'c1dw0c2dw0c3dw0tempdw0aimdb4dup(0),0ah,'$'dataendscodesegmentassumecs:code,ds:dataprintprocfarmovsi,5movax,tempmovbx,10move:xordx,dxdivbxmovaim[si-1],dladdaim[si-1],30hdecsijzbreak1jmpmovebreak1:leadx,aimmovah,09hint21hmovdl,0ahmovah,02hint21hretprintendpifnumprocfarcmpal,'0'jbbreak2cmpal,'9'jabreak2addc1,1break2:retifnumendpifcharprocfarcmpal,'A'jbbreak3cmpal,'Z'jbepluscmpal,'a'jbbreak3cmpal,'z'jbeplusplus:addc2,1break3:retifcharendpifspaceprocfarcmpal,''jnzbreak4addc3,1break4:retifspaceendpstart:movax,datamovds,axleadx,bufmovah,0ahint21hmovdl,0ahmovah,02hint21hmovbl,buf[1]xorbh,bhlop:moval,buf[bx+1]callifnumcallifcharcallifspacedecbxjzbreakjmplopbreak:leadx,str1movah,09hint21hmovax,c1movtemp,axcallprintleadx,str2movah,09hint21hmovax,c2movtemp,axcallprintleadx,str3movah,09hint21hmovax,c3movtemp,axcallprintmovah,4chint21hcodeendsendstart五、.编写程序，将十个字的有符号数中最大、最小值求出，并在显示器上输出。125ah,4357h，0f50h，0b43h，4ac4h，7454h，8b15h，0a2a4h，0f3ch，00f6hdatasegmentbufdw125ah,4357h,0f50h,0b43h,4ac4h,7454h,8b15h,0a2a4h,0f3ch,00f6htempdw0aimdb4dup(0),'h',0ah,'$'maxnumdw0minnumdw0strldb'maxnumis:$'str2db'minnumis:$'dataendscodesegmentassumecs:code,ds:dataprintprocfarmovbx,0movcl,12lop1:movax,tempshrax,clandal,000fhmovaim[bx],alsubcl,4incbxcmpbx,4jzlop2jmplop1movbx,4lop2:moval,aim[bx-1]cmpal,9jacharjmpnumnext:decbxjzbreakjmplop2char:addaim[bx-1],'a'-0ahjmpnextnum:addaim[bx-1],'0'jmpnextbreak:leadx,aimmovah,09hint21hretprintendpstart:movax,datamovds,axmovbx,18movax,[bx]movcx,[bx]lop:subbx,2cmpax,[bx]jlmaxcmpcx,[bx]jgminnextt:cmpbx,0jzexitjmplopmax:movax,[bx]jmpnexttmin:movcx,[bx]jmpnexttexit:movmaxnum,axmovminnum,cxmovtemp,axleadx,str1movah,09hint21hcallprintleadx,str2movah,09hint21hmovax,minnummovtemp,axcallprintmovah,4chint21hcodeendsendstart.键盘输入10个字节数（无符号数），求出最大、最小值，并在显示器上输出。datasegmentmindb0ffhmaxdb00hsumdw0tempdb?aimdb2dup(?),'h',0ah,'$'bufdb10dup(8)strldb'minnumis:$'str2db'maxnumis:$'str3db'meannumis:$'dataendsstacksegmentstackdb50dup(?)stackendscodesegmentassumecs:code,ds:data,ss:stackinputprocfarpushcxleadx,bufmovah,0ahint21hmovbx,2movcx,0xordx,dxlop3:moval,buf[bx+1]cmpal,'9'jbenum1jmpchar1next3:shlal,cladddl,aladdcx,4decbxjzbreak2numl:subal,'0'jmpnext3char1:subal,'a'-10jmpnext3break2:moval,dlcmpal,minjbmov_mincmpal,maxjamov_maxjmpnext1mov_min:movmin,aljmpnext1mov_max:movmax,aljmpnext1next1:xorah,ahaddsum,axmovdl,0ahmovah,02hint21hpopcxretinputendpshowprocfarmovbx,2movcx,0lop1:moval,tempshral,clandal,0fhcmpal,9jacharjmpnumnext2:addcl,4decbxjzbreak1jmplop1char:addal,'a'-10movaim[bx-1],aljmpnext2num:addal,'0'movaim[bx-1],aljmpnext2break1:leadx,aimmovah,09hint21hretshowendpstart:movax,datamovds,axmovcx,10lop:callinputdeccxjznextjmplopnext:movbx,10movax,sumdivblmovsum,axleadx,strlmovah,09hint21hmoval,minmovtemp,alcallshowleadx,str2movah,09hint21hmoval,maxmovtemp,alcallshowleadx,str3movah,09hint21hmovax,summovtemp,alcallshowmovah,4chint21hcodeendsendstart.一个有符号字数组以0为结束标志，编程求这个数组的最大值、最小值、平均值。.modelsmall.stack10h.databufdb10dup(8)countdb?resultdw?tempdw?aimdb5dup(?),0ah,'$'.codefunc1procfarmovbl,alincalmulblretfunclendpfunc2procfarmoval,countxorah,ahmovbl,alincalmulblmovresult,axretfunc2endpfunc3procfarpopdxpopcxpopaxmovbl,alincalmulblpushaxpushcxpushdxretfunc3endpprintprocfarmovax,tempmovsi,5movax,tempmovbx,10lop2:xordx,dxdivbxadddl,30hmovaim[si-1],dldecsijzbreak2jmplop2break2:leadx,aimmovah,09hint21hretprintendpinputprocfarleadx,bufmovah,0ahint21hmoval,buf[2]subal,30hmovbl,10mulbladdal,buf[3]subal,30hxorah,ahretinputendpstart:movax,@datamovds,axcallinputmovcount,alcallfunc1movtemp,axcallprintcallfunc2movax,resultmovtemp,axcallprintmoval,countxorah,ahpushaxcallfunc3popaxmovtemp,axcallprintmovah,4chint21hendstart.在BUFFER中定义了的十个带符号字，将其中的负数变成绝对值，并以十进制方式输出。datasegmentbufdw0012h,0fff0h,0ef0fh,00ach,700ah,0012h,0fff0h,0ef0fh,00ach,7fffhtempdw?aimdb5dup(?),0ah,'$'dataendsstacksegmentstackdb10dup(?)stackendscodesegmentassumecs:code,ds:data,ss:stackprintprocfarpushcxpushsimovax,tempcmpax,0jlnegtivejmppostivenegtive:negaxmovtemp,axjmpcontinue1postive:jmpcontinue1continue1:movsi,5movax,tempmovbx,10lop2:xordx,dxdivbxadddl,30hmovaim[si-1],dldecsijzbreak2jmplop2break2:leadx,aimmovah,09hint21hpopsipopcxretprintendpstart:movax,datamovds,axmovcx,10leasi,buflop:lodswmovtemp,axcallprintdeccxjzbreakjmplopbreak:movah,4chint21hcodeendsendstart.已知数组A包含20个互不相等的字型整数，数组B包含30个互不相等的字型整数，试编制一程序把在A中而不在B中出现的整数放于数组C中。.modelsmall.dataadw0,10,2,3,4,5,6,7,8,9,1,11,12,13,14,15,16,17,18,19bdw10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39ccdw20dup(?).codestart:movax,@datamovds,axleasi,aleadi,ccmovcx,21lopl:deccxjzbreaklmovax,[si]incsiincsimovbx,60lop2:cmpax,b[bx-2]jzfalsedecbxdecbxjztruejmplop2false:jmplop1true:mov[di],axincdiincdijmplop1break1:movah,4chint21hendstart.已知数组A包含20个互不相等的字型整数，数组B包含30个互不相等的字型整数，试编制一程序把既在A中又在B中出现的数存放于数组C中。.modelsmall.dataadw0,10,2,3,4,5,6,7,8,9,1,11,12,13,14,15,16,17,18,19bdw10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39ccdw20dup(?).codestart:movax,@datamovds,axleasi,aleadi,ccmovcx,21lopl:deccxjzbreaklmovax,[si]incsiincsimovbx,60lop2:cmpax,b[bx-2]jztruedecbxdecbxjzfalsejmplop2false:jmplop1true:mov[di],axincdiincdijmplop1break1:movah,4chint21hendstart.设有4个学生参加5门考试，请计算每个学生的平均成绩和每门课的平均分成绩，并在显示器上显示，输出格式如下：Chg1chg2chg3chg4chg5meamS1 78S2 67S3 92S4 43Aver不计小数。.modelsmall859655955543768210079928997846575.datastr1db'chg1chg2chg3chg4chg5mean',0ah,'$'str2db's178855510097$'str3db's26796437984$'str4db's39255769265$'str5db's44395828975$'str6db'mean$'sdb78,85,55,100,97,67,96,43,79,84,92,55,76,92,65,43,95,82,89,75resultldb4dup(?)result2db5dup(?)aimdb2dup(?),' $'.stack10h.codeprintprocfarxorah,ahmovbl,10divbladdax,3030hmovaim[0],almovaim[1],ahleadx,aimmovah,09hint21hretprintendpstart:movax,@datamovds,axmovbx,0movdi,0lopl:xorax,axxorcx,cxmovcl,s[bx]addax,cxmovcl,s[bx+1]addax,cxmovcl,s[bx+2]addax,cxmovcl,s[bx+3]addax,cxmovcl,s[bx+4]addax,cxmovdl,5divdlmovresult1[di],aladdbx,5incdicmpdi,4jzbreak1jmplop1break1:movbx,0lop2:xorax,axxorcx,cxmovcl,s[bx]addax,cxmovcl,s[bx+5]addax,cxmovcl,s[bx+10]addax,cxmovcl,s[bx+15]addax,cxmovdl,4divdlmovresult2[bx],alincbxcmpbx,5jzbreak2jmplop2break2:leadx,strlmovah,09hint21hleadx,str2movah,09hint21hmoval,result1[0]callprintmovdl,0ahmovah,02hint21hleadx,str3movah,09hint21hmoval,result1[1]callprintmovdl,0ahmovah,02hint21hleadx,str4movah,09hint21hmoval,result1[2]callprintmovdl,0ahmovah,02hint21hleadx,str5movah,09hint21hmoval,result1[3]callprintmovdl,0ahmovah,02hint21hleadx,str6movah,09hint21hmovsi,0lop3:moval,result2[si]callprintincsicmpsi,5jzexitjmplop3exit:movdl,0ahmovah,02hint21hmovah,4chint21hendstart30.编程计算从2开始的N(N<50)个偶数之和(2+4+6+…)，主程序从键盘输入整数N,调用子程序求出N个偶数之和，由主程序显示结果。尝试分别使用以下3种方法编写完整程序。(1)利用寄存器传递参数(2)利用公共数据段变量传递参数(3)利用堆栈传递参数.modelsmall.stack10h.databufdw10dup(0)numdb10dup(8)tempdw?coefdw?aimdb6dup(?),0ah,'$.codeinputprocfarleadx,nummovah,0ahint21hmovdl,0ahmovah,02hint21hmoval,num[2]cmpal,'-'jznegtive1jmppostive1negtive1:movcl,num[1]deccljmpnext1postive1:movcl,num[1]next1:xorch,chxorbh,bhmovbl,num[1]movcoef,1movtemp,0lop1:moval,num[bx+1]subal,30hxorah,ahmulcoefaddtemp,axmovax,10mulcoefmovcoef,axdecbxdeccxjzbreakljmploplbreakl:moval,num[2]cmpal,'-'jnzexit1movax,tempnegaxmovtemp,axexit1:retinputendpsortprocfarmovcx,10sort_lop1:deccxjzsort_breakmovbx,18sort_lop2:movax,buf[bx]cmpax,buf[bx-2]jlexchangesort_next:decbxdecbxjzsort_lop1jmpsort_lop2exchange:xchgax,buf[bx-2]xchgax,buf[bx]jmpsort_nextsort_break:retsortendpprintprocfarmovax,tempcmpax,0jgprint_pjmpprint_nprint_p:movaim[0],'+'jmpprint_nextprint_n:movaim[0],'-'negaxmovtemp,axjmpprint_nextprint_next:movbx,5movcx,10print_lop:xordx,dxdivcxadddl,30hmovaim[bx],dldecbxjzprint_breakjmpprint_lopprint_break:leadx,aimmovah,09hint21hretprintendpstart:movax,@datamovds,axmovsi,20lop:callinputmovax,tempmovbuf[si-2],axdecsidecsijzbreakjmplopbreak:callsortmovax,buf[18]movtemp,axcallprintmovah,4chint21hendstart31.多模块程序设计（1）设计一个包括：键盘输入、显示、排序、转换、退出程序的主菜单。（2）从键盘输入10个字型带符号数。（3）把10个带符号十进制数转换成二进制数。（4）把10个二进制数按从小到大顺序排列。（5）把10个带符号二进制数转换成十进制数。（6）把最大数用十进制数的形式显示在屏幕上要求：（1）整个程序用四个模块组成：主菜单，排序子模块，转换子模块，其它。（2）键盘输入与显示功能分别用宏指令实现。（3）排序及转换功能分别用子程序实现。.modelsmall.stack10h.databufdb10dup(8)countdb?resultdw?tempdw?aimdb5dup(?),0ah,'$.codefunc1procfarmovbl,alincalmulblretfunclendpfunc2procfarmoval,countxorah,ahmovbl,alincalmulblmovresult,axretfunc2endpfunc3procfarpopdxpopcxpopaxmovbl,alincalmulblpushaxpushcxpushdxretfunc3endpprintprocfarmovax,tempmovsi,5movax,tempmovbx,10lop2:xordx,dxdivbxadddl,30hmovaim[si-1],dldecsijzbreak2jmplop2break2:leadx,aimmovah,09hint21hretprintendpinputprocfarleadx,bufmovah,0ahint21hmoval,buf[2]subal,30hmovbl,10mulbladdal,buf[3]subal,30hxorah,ahretinputendpstart:movax,@datamovds,axcallinputmovcount,alcallfunc1movtemp,axcallprintcallfunc2movax,resultmovtemp,axcallprintmoval,countxorah,ahpushaxcallfunc3popaxmovtemp,axcallprintmovah,4chint21hendstart32.将两个磁盘文件合并成一个新的文件。.modelsmall.stack10h.datafile1db'C:\exam\demo1.txt',0file2db'C:\exam\demo2.txt',0file3db'C:\exam\demo3.txt',0bufdb256dup(?)handledw?countdw?.codestart:movax,@datamovds,axleadx,file1moval,0movah,3dh ；打开文件int21hmovhandle,axmovbx,axmovcx,255leadx,bufmovah,3fh ；读取文件int21hmovbx,axmovcount,axmovbx,handlemovah,3eh ；关闭文件int21hleadx,file2movah,3dhmoval,0int21hmovhandle,axmovbx,countleadx,buf[bx]movbx,axmovcx,255movah,3fhint21haddcount,axmovbx,handlemovah,3ehint21hleadx,file3movah,3chmovcx,0int21hmovhandle,axmovbx,axleadx,bufmovcx,countmovah,40hint21hmovah,4chint21hendstart33.将一磁盘文件‘E:\ASS\FILE.ASM’读入内存2000：0000h中，并将文件以反序形式(头尾对应字符互换)仍以相同路径存入磁盘中。.modelsmall.stack10h.datafile1db'C:\exam\demo1.txt',0file2db'C:\exam\demo4.txt',0bufdb256dup(?)countdw?handledw?.codestart:movax,@datamovds,axmoves,axleadx,file1movah,3dhmoval,0int21hmovhandle,axmovbx,axmovax,2000hmovds,axmovdx,0movcx,256movah,3fhint21hmovbx,axmovax,@datamovds,axmovcount,bxmovbx,handlemovah,3ehint21hmovbx,countleasi,bufadd