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1、1.编写的程序实现将以STR1为起始地址存放的字符串"Howareyou?$”传送到STR2开始的地址中去，并将STR2中的字符显示输出、具体要求是：(1)用寄存器间接寻址方式，按正序将STR2中的字符依次显示出来。(2)用相对寻址，用变址寄存器SI來寻址STR1和STR2,并逆序将STR2中的字符依次显小出來0(3)用基址寻址，用基址寄存器BX寻址STR1和STR2,并按正序将STR2屮的字符依次显示出来。2.编写的程序实现将以STR1为起始地址存放的字符串"Howareyou?$”传送到辅助数据段
2、STR2开始的地址中去，并将STR2中的字符显示输出。1-1DATASEGMENTSTR1DB，HOWAREYOU?$，STR2DB12DUP(?)DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVSI,OFFSETSTR1MOVDI,OFFSETSTR2MOVCX,12NEXT1:MOVAL,[SI]MOV[DI],ALINCSIINCDILOOPNEXT1MOVSI,OFFSETSTR2MOVCX,12NEXT2:
3、MOVDL,[ST]MOVAH,0211INT21HINCSILOOPNEXT2MOVAH,4CHINT2111CODEENDSENDSTART1-2DATASEGMENTSTR1DB'HOWAREYOU?$'STR2DB12DUP(?)DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVST,0MOVCX,12NEXT1:MOVAL,STR1[S1]MOVSTR2[SI],ALINCSILOOPNEXT1MOVSI,O
4、FFSETSTR2+12-1MOVCX,12NEXT2:MOVDL,[SI]MOVAH,02HINT21HDECSILOOPNEXT2MOVAH,4CHINT21HCODEENDSENDSTART1-3DATASEGMENTSTR1DB'HOWAREYOU?$，STR2DB12DUP(?)DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVBX,OFFSETSTR1MOVCX,12NEXT1:MOVAL,STR1[BX]
5、MOVSTR2[BX],ALINCBXLOOPNEXT1MOVBX,OFFSETSTR2MOVCX,12NEXT2:MOVDL,[BX]MOVAH,0211INT21HINCBXLOOPNEXT2MOVAH,4CH1NT21HCODEENDSENDSTART1-1DATASEGMENTSTR1DB，HOWAREYOU?$，STR2DB12DUP(?)DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVSI,OFFSETS
6、TR1MOVDI,OFFSETES:STR2MOVCX,12NEXT1:MOVAL,[SI]MOV[DI],ALINCSIINCDILOOPNEXT1MOVSI,OFFSETES:STR2MOVCX,12NEXT2:MOVDL,[ST]MOVAH,0211INT21HINCSILOOPNEXT2MOVAH,4CHINT2111CODEENDSENDSTART(1)实现多字节二进制加法630B840A90H+436732AF8AH,用DEBUG查看程序结果。(2)实现多字节二进制减法630B840A90
7、H-436732AF8AH,用DEBUG查看程序结果。5-1DATASEGMENTONEDB90H,OAH,84H,OBH,63H,OOHTWODB8AH,OAFH,32H,67H,43H,OOHDATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVCX,6MOVSI,0CLCLI:MOVAL,TWO[ST]ADCONE[SI],ALINCSILOOPLIMOVAH,4CHTNT21HCODEENDSENDSTART5-2
8、DATASEGMENTONEDB90H,OAH,84H,OBH,63H,OOHTWODB8AI1,OAFII,3211,6711,4311,OOHDATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVCX,6MOVSI,0CLCLI:MOVAL,TWO[ST]SBBONE[SI],ALINCSILOOPLIMOVAH,4CHTNT21HCODEENDSENDSTART3.按例
