微机课件用户登录验证程序的实现汇编.doc

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1、.486CRLFMACROMOVAH,0EHMOVAL,0DHINT10HMOVAL,0AHINT10HENDMOUTXMACROXMOVAH,09HMOVDX,OFFSETXINT21HENDMDATASSEGMENTUSE16BUF1DB'B08010530'BUF2DB'11111'IN1DB20DUP(?)IN2DB20DUP(?)OUT1DB'pleaseentertheusernameandthepassword:','$'OUT2DB'USERNAME:','$'OUT3DB'PASSWORD:','$'OUT4DB'*','$'OU

2、T5DB'ERROR!','$'OUT6DB'----------WELCOME----------','$';此处输入数据段代码DATASENDSCODESEGMENTUSE16ASSUMECS:CODE,DS:DATAS,ES:DATASSTART:MOVAX,DATASMOVDS,AXMOVES,AXOUTXOUT1CRLFOUTXOUT2MOVBX,OFFSETIN1MOVCX,20LAST1:MOVAH,01HINT21HMOVBYTEPTR[BX],ALCMPAL,0DHJZJUMP1INCBXLOOPLAST1JUMP1:CRLFOU

3、TXOUT3MOVBX,OFFSETIN2MOVCX,20LAST2:MOVAH,07HINT21HMOVBYTEPTR[BX],ALCMPAL,0DHJZJUMP2INCBXOUTXOUT4LOOPLAST2JUMP2:CRLFCMP1:MOVSI,OFFSETIN1MOVDI,OFFSETBUF1MOVCX,9CLDREPECMPSBJZCMP2OUTXOUT5JMPEXITCMP2:MOVSI,OFFSETIN2MOVDI,OFFSETBUF2MOVCX,5CLDREPECMPSBJZSUCCESSOUTXOUT5JMPEXITSUCCESS

4、:OUTXOUT6EXIT:MOVAH,4CHINT21HCODEENDSENDSTART