微机原理与接口技术设计实验

桂林电子科技大学机电工程学院1000150123实验一：编写程序，比较两个字符串STRING1和STRING2所含的字符是否相同，若字符相同则显示“Match”,否则显示“NoMatch”参考程序：DATASEGMENTSTRING1DB'HAPPYASM'LENEQU$-STRING1STRING2DB'HAPPYASM'MESSAGE1DB'MATCH',0DH,0AH,'$'MESSAGE2DB'NOMATCH',0DH,0AH,'$'DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATA,ES:DATASTART:MOVAX,DATAMOVDS,AXMOVES,AXLEASI,STRING1LEADI,STRING2MOVCX,LENCOMPARE:MOVAL,[SI]MOVBL,[DI]CMPAL,BLJNEDISMATCHINCSIINCDILOOPCOMPAREMATCH:LEADX,MESSAGE1JMPDISPDISMATCH:LEADX,MESSAGE2DISP:MOVAH,09HINT21HMOVAH,4CHINT21HCODEENDSENDSTART实验二：编写程序，从键盘输入一串字符，以‘$’或回车结束，将其中的小写字母转变为大写字母，其余字符不做转换，原样输出，结果显示在屏幕上。参考程序：DATASEGMENTBUFDB50DB?DB50DUP(?)INPUTSTRINGDB'PLEASEINPUTASTRING:','$'OUTPUTSTRINGDB'OUTPUTSTRINGIS:','$'ENTERSTRINGDB0DH,0AH,'$'DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXLEADX,INPUTSTRINGMOVAH,09HINT21HLEADX,BUFMOVAH,0AHINT21HLEADX,ENTERSTRINGMOVAH,09HINT21HLEABX,BUFADDBX,2NEXT1:MOVAL,[BX]INCBXCOMPARE:CMPAL,24HJZDISPCMPAL,61HJBNEXT1CMPAL,7AHJANEXT1SUBAL,20HMOV[BX-1],ALJMPNEXT1DISP:LEADX,OUTPUTSTRINGMOVAH,09HINT21HLEADX,BUF+2MOVAH,09HINT21HMOVAH,4CHINT21HCODEENDSENDSTART实验三：利用子程序方法编写程序，设有10个无符号数的字节序列，查找该序列中的最大值和最小值，并把结果显示在屏幕上。参考程序1：（针对一位10进制数）STACKSEGMENTSTACKDW256DUP(?)TOPLABELWORDSTACKENDSDATASEGMENTBUFDB00H,01H,02H,03H,04HDB05H,06H,07H,08H,09HCOUNTEQU$-BUFENTERSTRINGDB0DH,0AH,'$'MAXSTRINGDB'THEMAXIMUNNUMBERIS:','$'MINSTRINGDB'THEMINIMUNNUMBERIS:','$'DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATA,SS:STACKSTART:MOVAX,DATAMOVDS,AXMOVAX,STACKMOVSS,AXLEASP,TOPMOVSI,OFFSETBUFMOVCX,COUNTCALLBRANCHPUSHAXLEADX,MAXSTRINGMOVAH,09HINT21HPOPAXMOVDL,AHADDDL,30HPUSHAXMOVAH,02HINT21HLEADX,ENTERSTRINGMOVAH,09HINT21HLEADX,MINSTRINGMOVAH,09HINT21HPOPAXMOVDL,ALADDDL,30HMOVAH,02HINT21HMOVAH,4CHINT21HBRANCHPROCNEARJCXZNEXT4PUSHSIPUSHCXPUSHBXMOVBH,[SI]MOVBL,BHCLDNEXT1:LODSBCMPAL,BHJBENEXT2MOVBH,ALJMPNEXT3NEXT2:CMPAL,BLJAENEXT3MOVBL,ALNEXT3:LOOPNEXT1MOVAX,BXPOPBXPOPCXPOPSINEXT4:RETBRANCHENDPCODEENDSENDSTART参考程序二：（针对两位十六进制数或无符号数）STACKSEGMENTSTACKDW256DUP(?)TOPLABELWORDSTACKENDSDATASEGMENTBUFDB0FFH,55H,33H,44H,54HDB45H,46H,47H,48H,1AHCOUNTEQU$-BUFENTERSTRINGDB0DH,0AH,'$'MAXSTRINGDB'THEMAXIMUNNUMBERIS:','$'MINSTRINGDB'THEMINIMUNNUMBERIS:','$'DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATA,SS:STACKSTART:MOVAX,DATAMOVDS,AXMOVAX,STACKMOVSS,AXLEASP,TOPMOVSI,OFFSETBUFMOVCX,COUNTCALLBRANCHMOVDX,AXPUSHDXLEADX,MAXSTRINGMOVAH,09HINT21HPOPDXMOVAL,DHPUSHDXCALLDISPGAO4POPDXMOVAL,DHPUSHDXCALLDISPDI4LEADX,ENTERSTRINGMOVAH,09HINT21HLEADX,MINSTRINGMOVAH,09HINT21HPOPDXMOVAL,DLPUSHDXCALLDISPGAO4POPDXMOVAL,DLCALLDISPDI4MOVAH,4CHINT21HBRANCHPROCNEARJCXZNEXT4PUSHSIPUSHCXPUSHBXMOVBH,[SI]MOVBL,BHCLDNEXT1:LODSBCMPAL,BHJBENEXT2MOVBH,ALJMPNEXT3NEXT2:CMPAL,BLJAENEXT3MOVBL,ALNEXT3:LOOPNEXT1MOVAX,BXPOPBXPOPCXPOPSINEXT4:RETBRANCHENDPDISPDI4PROCNERR；低四位ANDAL,0FHMOVDL,ALCMPDL,9JLENUM1ADDDL,7NUM1:ADDDL,30HMOVAH,02HINT21HRETDISPDI4ENDPDISPGAO4PROCNERR；高四位SARAL,4ANDAL,0FHMOVDL,ALCMPDL,9JLENUM2ADDDL,7NUM2:ADDDL,30HMOVAH,02HINT21HRETDISPGAO4ENDPCODEENDSENDSTART实验四：8255交通灯参考程序：MY8255_AEQU288H;8255的A口地址MY8255_BEQU289H;8255的B口地址MY8255_CEQU28AH;8255的C口地址MY8255_MODEEQU28BH;8255的控制寄存器地址STACK1SEGMENTSTACKDW256DUP(?)STACK1ENDSDATASEGMENTLADB?;定义数据变量LBDB?DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVDX,MY8255_MODE;定义8255工作方式MOVAL,80H;工作方式0，A口和B口为输出OUTDX,ALL1:MOVDX,MY8255_A;写A口发出的数据，1组绿灯亮,2组红灯亮MOVAL,24HOUTDX,ALCALLDALLY1MOVCX,05HL2:MOVDX,MY8255_A;写A口发出的数据，1组黄灯亮,2组红灯亮MOVAL,44HOUTDX,ALCALLDALLY2MOVDX,MY8255_A;写A口发出的数据，1组黄灯灭,2组红灯亮MOVAL,04HOUTDX,ALCALLDALLY2LOOPL2L3:MOVDX,MY8255_A;写A口发出的数据，1组绿灯亮,2组红灯亮MOVAL,81HOUTDX,ALCALLDALLY1MOVCX,05HL4:MOVDX,MY8255_A;写A口发出的数据，1组黄灯亮,2组红灯亮MOVAL,82HOUTDX,ALCALLDALLY2MOVDX,MY8255_A;写A口发出的数据，1组黄灯灭,2组红灯亮MOVAL,80HOUTDX,ALCALLDALLY2LOOPL4L5:MOVAH,01H;判断是否有按键按下，调用功能号1INT16H;ROMBIOS功能调用JZL1;无按键则跳回继续循环，有则退出QUIT:MOVAX,4C00H;结束程序退出;INT21H;DOS系统功能调用DALLY1PROCNEAR;软件延时子程序，东西方向红灯亮，南北方向绿灯亮PUSHCXPUSHDIMOVCX,3FFHY1:MOVDI,9000HX1:DECDIJNZX1LOOPY1POPDIPOPCXRETDALLY1ENDPDALLY2PROCNEAR;软件延时子程序，黄灯闪烁（即亮与灭）的时间间隔，PUSHCXPUSHDIMOVCX,3FHY2:MOVDI,9000HX2:DECDIJNZX2LOOPY2POPDIPOPCXRETDALLY2ENDPCODEENDSENDSTART参考程序2：流水灯MY8255_AEQU288H;8255的A口地址MY8255_BEQU289H;8255的B口地址MY8255_CEQU28AH;8255的C口地址MY8255_MODEEQU28BH;8255的控制寄存器地址STACK1SEGMENTSTACKDW256DUP(?)STACK1ENDSDATASEGMENTLADB?;定义数据变量DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVDX,MY8255_MODE;定义8255工作方式MOVAL,80H;工作方式0，A口和B口为输出OUTDX,ALMOVCX,0FFFFHMOVBL,80HL1:MOVDX,MY8255_A;写A口发出的数据MOVAL,BLOUTDX,ALCALLDALLY1RORBL,1LOOPL1QUIT:MOVAX,4C00H;结束程序退出INT21H;DOS系统功能调用DALLY1PROCNEAR;软件延时子程序，东西方向红灯亮，南北方向绿灯亮PUSHCXPUSHDIMOVCX,3FHY1:MOVDI,9000HX1:DECDIJNZX1LOOPY1POPDIPOPCXRETDALLY1ENDPCODEENDSENDSTART实验五：8254一赫兹方波输出参考程序：MY8254_COUNT0EQU280H;8254计数器0端口地址MY8254_COUNT1EQU281H;8254计数器1端口地址MY8254_COUNT2EQU282H;8254计数器2端口地址MY8254_MODEEQU283H;8254控制寄存器端口地址STACK1SEGMENTSTACKDW256DUP(?)STACK1ENDSCODESEGMENTASSUMECS:CODESTART:MOVDX,MY8254_MODE;初始化8254工作方式MOVAL,37H;计数器0，方式3OUTDX,ALMOVDX,MY8254_COUNT0;装入计数初值MOVAL,00;1000分频OUTDX,ALMOVAL,10OUTDX,ALMOVDX,MY8254_MODE;初始化8254工作方式MOVAL,77H;计数器1，方式3OUTDX,ALMOVDX,MY8254_COUNT1;装入计数初值MOVAL,00;1000分频OUTDX,ALMOVAL,10OUTDX,ALQUIT:MOVAX,4C00H;结束程序退出INT21HCODEENDSENDSTART实验六：AD转换(0809)参考程序：CODESEGMENTASSUMECS:CODESTART:MOVDX,298H;启动A/D转换器OUTDX,ALMOVCX,0FFFFHDELAY:LOOPDELAYMOVDX,298HINAL,DXPUSHDXPUSHAXCALLDISPGAO4POPAXPOPDXCALLDISPDI4PUSHDXMOVAH,06HMOVDL,0FFHINT21HPOPDXJESTARTMOVAH,4CHINT21HDISPDI4PROCNERR；低四位ANDAL,0FHMOVDL,ALCMPDL,9JLENUM1ADDDL,7NUM1:ADDDL,30HMOVAH,02HINT21HRETDISPDI4ENDPDISPGAO4PROCNERR；高四位SARAL,4ANDAL,0FHMOVDL,ALCMPDL,9JLENUM2ADDDL,7NUM2:ADDDL,30HMOVAH,02HINT21HRETDISPGAO4ENDPCODEENDSENDSTART