[考试]循环程序设计：冒泡排序(并求平均值).docx

1、;循环程序设计：冒泡排序（并求平均值）（8086汇编）vipxxl;中南大学微机原理与接口技术实验8086汇编;原题实验三循环程序设计;编写一段程序，在数据段的十个数据单元中，定义20个8位无符号数（或键盘输入）。;找出最大数和最小数，分别送到MAX和MIN单元中。显示原始数据、最大值、最小值。DATASEGMENT;数据段DA1DW20DUP(?)DA2DBPLEASEINPUT20NUMBERS(0099):,0DH,0AH,$DA3DBNUMBERSBEFORSORT:,0DH,0AH,$DA4DB0DH,0AH,NUMBERSAFTERSORT:,0DH,0AH,$DA5DB0DH,0

2、AH,THEMAXNUMBERIS:,0DH,0AH,$DA6DB0DH,0AH,THEMINNUMBERIS:,0DH,0AH,$DA7DB0DH,0AH,PRESSANYKEYTOQUIT:,0DH,0AH,$DA8DBPLEASEINPUTNUMER,$DA9DB:,$DA10DB0DH,0AH,THEAVERAGEVALUEIS:,0DH,0AH,$DAT1DW3230H,3139H,3138H,3137H,3136H,3135H,3134H,3133H,3132H,3131HDW3130H,3039H,3038H,3037H,3036H,3035H,3034H,3033H,3032H

3、,3031HDAT2DB0DH,0AH,WRONGNUMBER!,0DH,0AH,$DATAENDSSTACKSEGMENTSTACK;堆栈段ST1DB100DUP(?)STACKENDSCODESEGMENT;代码段MAINPROCFARASSUMECS:CODE,DS:DATA,SS:STACKSTART:MOVAX,STACK;送堆栈段地址MOVSS,AXPUSHDS;返回DOSMOVAX,0PUSHAXMOVAX,DATA;送数据段段地址MOVDS,AXMOVDX,OFFSETDA2;提示输入信息MOVAH,9INT21HLEADI,DA1;数组首地址MOVCX,20;循环次数20TI

4、P1:MOVAH,9;提示输入第N个数MOVDX,OFFSETDA8INT21HLEASI,DAT1SUBSI,2ADDSI,CXADDSI,CXMOVBX,SIMOVDL,BHMOVAH,2INT21HMOVDL,BLMOVAH,2INT21HMOVAH,9MOVDX,OFFSETDA9INT21HINPUT:MOVAH,1;输入十位数INT21HCMPAL,30H;防误输入JBTIP2CMPAL,39HJGTIP2MOVBH,ALMOVAH,1;输入个位数INT21HCMPAL,30H;防误输入JBTIP2CMPAL,39HJGTIP2MOVBL,ALMOVDI,BX;将输入的数字存放到内

5、存ADDDI,2;指向下一个数MOVAH,2;回车MOVDL,0AHINT21HLOOPTIP1;循环JMPNEXT1;循环结束，跳转TIP2:MOVAH,9;提示错误信息MOVDX,OFFSETDAT2INT21HJMPTIP1;跳转，重新输入NEXT1:MOVDX,OFFSETDA3;提示排序前数组MOVAH,9INT21HMOVCX,20MOVDI,OFFSETDA1OUT1:MOVDX,DI;输出排序前数组MOVBX,DXMOVDL,BH;输出十位数MOVAH,2INT21HMOVDL,BL;输出个位数MOVAH,2INT21HMOVAH,2MOVDL,20H;空格INT21HADDD

6、I,2LOOPOUT1;循环SORT:MOVCX,19;排序，设计数器CX，内循环次数LEABX,DA1L1:MOVDX,CX;设计数器DX，外循环次数L2:MOVAX,BX;取相邻两个数CMPAX,BX+2;若前一个小于后一个，跳转JBCONT1XCHGAX,BX+2;否则两数交换MOVBX,AXCONT1:ADDBX,2;内循环LOOPL2MOVCX,DX;外循环次数-CXMOVBX,0;地址返回第一个数据LOOPL1;外循环MOVCX,20MOVDX,OFFSETDA4;提示输出信息MOVAH,9INT21HLEADI,DA1OUT2:MOVAH,2;输出排序后的数组MOVDX,DIMO

7、VBX,DX;输出十位数MOVDL,BHMOVAH,2INT21HMOVDL,BL;输出个位数MOVAH,2INT21HMOVAH,2MOVDL,20HINT21HADDDI,2LOOPOUT2;循环输出OUT3:MOVDX,OFFSETDA5;输出最大数MOVAH,9INT21HLEADI,DA1MOVAH,2MOVDX,DI+38MOVBX,DXMOVDL,BHMOVAH,2INT21HMOVDL,BLMOVAH,2INT21HMOVAH,2MOVDL,20HINT21HMOVDX,OFFSETDA6;输出最小数MOVAH,9INT21HLEADI,DA1MOVAH,2MOVDX,DIMO

8、VBX,DXMOVDL,BHMOVAH,2INT21HMOVDL,BLMOVAH,2INT21HMOVAH,2MOVDL,20HINT21HAVE1:LEADI,DA1;算平均值MOVCX,20MOVBX,0AVE2:MOVAX,DI;循环计算20数之和PUSHAX;ASCII转16进制数SUBAH,30H;高位转BCD码MOVAL,AHPUSHCXMOVCL,10;高位乘以10MULCLPOPCXMOVDX,AXPOPAXSUBAL,30H;低位转BCD码MOVAH,0HADDAX,DX;十位数和个位数合并ADDBX,AXADDDI,2LOOPAVE2;循环MOVAX,BXMOVBL,20;除以20求平均数DIVBLMOVAH,0;注意！不然会发生divideoverflowMOVBL,10;16进制转非压缩BCD码DIVBLXCHGAH,ALOUT4:PUSHAX;输出平均值MOVDX,OFFSETDA10MOVAH,9INT21HPOPAXPUSHAXADDAH,30HMOVDL,AHMOVAH,2INT21HPOPAXADDAL,30HMOVDL,ALMOVAH,2INT21HFINISH:MOVDX,OFFSETDA7;结束MOVAH,9INT21HMOVAH,8INT21HRETMAINENDPCODEENDSENDSTART