微机同济电子与信息工程学院中心实验报告

名 张 郭斯 号 师 张实验项目名称 数码转换程序实实验二ASCII2所示。;A2-

ASCII;ASCII SEGMENTDW256DUP(?) 'Theasciicodeofdecimalcodeare:$' 10H CODEASSUME SI,OFFSETBUF IMUL LOOP ;CALL ;CALL PROCNEAR ;4 ;A ;showcharacter ;4 ;showcharacter CODEENDSENDASCIIBCD54321ASC为BCD码后，并将转换结果按位分别显示于屏幕上。若输入的不是十进制数的码，则输出“FF3。;A2-

ASCIIBCD;ASCIIBCD SEGMENTDW256DUP(?) DB'TheBCDcodeofdecimalare:$' DB31H,32H,33H,34H,35HDB10H CODESTART:MOV MOVDI,OFFSET;AL0~9ASCIICALLMOVMOV LOOPMOV MOVAND;4SHRCMP;A ADDADDMOV;showMOV MOVAND;4CMP ADD ADDMOVDL,AL ;showcharacterMOVAH,02H CODEENDSENDASCII0-65535，最大可转换为五位十进制数。五位十进制数可表D1-D4ASCⅡ码。000CHASCII码转换成十进制数，并将转换结果显4。;A2-

ASCII;ASCII SEGMENTDW256 DB'Theasciicodeofhexare:$' DB0CH,00HDB10H CODEASSUME MOVMOVSI,OFFSETBUF MOVBX,SIADDBX,2ADDSI,7A1:DEC CALLMOVDL,20HMOVAH,02HINT21HINCSILOOPMOVAX,4C00H MOVAND;4SHRCMP;A ADDADDMOV;showMOV MOVAND;4CMP ADDADDMOV;showMOV CODEENDBCDBCD码存放在某一内存单元中，转换出的二进制5。;A2-

5BCD;BCD SEGMENTDW256DUP(?) DB'TheBCDcodeofbinary DB01H,07H,03H,04H,05H,01H,06H,08HDB10HDUP(0) CODEASSUME MOV DI,OFFSET ADDAL,AL ADDAL,ALADDADDAL,BL ADDAL,[DI] LOOPMOVDX,OFFSETMES1MOVAH,09H MOVMOVDI,OFFSETBUFADDDI,08H MOVAX,[DI]CALLSHWORDMOVDL,20HMOVAH,02H LOOPMOVAX,4C00H SHWORD MOVBL,AHCALLSHOWMOVBL,ALCALLSHOW PUSHAXPUSHMOVAND ;4SHRCMP ;A ADD;show;4;showCODEENDCompileCompile和Link1ASCII程序输入数据为十进制数00012，ASCII为30H30H30H31H32H转换为16进制为0CH，在屏幕上显示结果000CASCIIBCD程序输入为54321，ASCII为35H34H33H32H31H,转换为BCD码为05H04H03H02H01H0504030201ASCII000CH1030303132FFFFFH36353533BCDBCD01070304050106081734510011002200330044ASCII码十进制数转换为二进制数000CASCIIBCD码0102030405ASCII码转换为十进制数运行结果为3030303132BCD0011002200