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1、设平面上一点p的直角坐标为（x，y），x，y为字符号数，试编制若P落在第i象限内，则令k=i；若P落在坐标轴上，则令k=0的程序。stacksegmentstack'stack'dw32dup(0)stackendsdatasegmentxdw0ydw30kdb0dataendscodesegmentbeginprocfarassumess:stack,cs:code,ds:datapushdssubax,axpushaxmovax,datamovds,axmovax,xjzx0y0movax,yjzx0y0
2、movax,xjsx1movax,yjsy1movk,1jmpenddy1:movk,4jmpenddx1:movax,yjsy2movk,2jmpenddy2:movk,3jmpenddx0y0:movk,0jmpenddendd:movdl,kadddl,30hmovah,2int21hretbeginendpcodeendsendbegin编写程序，将字节变量BVAR中的无符号二进制数（0~0FFH）转换为BCD数，在屏幕上显示结果。stacksegmentstack‘stack’ dw32du
3、p(0)stackendsdatasegmentBVARDB99HOBUFDB4DUP(0)dataendscodesegmentbeginprocfar assumess:stack,cs:code,ds:data pushds subax,ax pushax movax,data movds,ax MOVAL,BVAR MOVAH,0 MOVDL,100 DIVDL ADDAL,30H Movobuf,al
4、 MOVAL,AH AAM ADDAX,3030H MOVOBUF+1,AH MOVOBUF+2,AL MOVOBUF+3,‘$’ MOVDXOFFSETOBUF MOVAH,9 INT21H retbeginendpcodeendsendbegin1.编写源程序实现以下功能：z=
5、x-y
6、。x、y、z均为字节变量。stacksegmentstack'stack'dw32dup(0)stackendsdatasegmentxdb12h
7、ydb10hzdb0dataendscodesegmentbeginprocfarassumess:stack,cs:code,ds:datapushdssubax,axpushaxmovax,datamovds,axmoval,xcmpal,yjgea1suby,almovah,ymovz,ahjmpexita1:subal,ymovz,alexit:retbeginendpcodeends编写源程序实现以下功能，在显示器上显示：Enterthestring:IamaChineseOutputthestri
8、ngagain:IamaChinesestacksegmentstack'stack'dw32dup(0)stackendsdatasegmentOBUFDB'Enterthestring:$'IBUFDB0FFH,0,255DUP(0)OBUF1dB'Outputthestringagain:$'dataendscodesegmentbeginprocfarassumess:stack,cs:code,ds:datapushdssubax,axpushaxmovax,datamovds,axMOVDX,OF
9、FSETOBUFMOVAH,9INT21Hmovdl,0ahmovah,2int21hmovdl,0dhmovah,2int21hMOVDX,OFFSETIBUFMOVAH,10INT21Hmovdl,0ahmovah,2int21hmovdl,0dhmovah,2int21hMOVDX,OFFSETOBUF1MOVAH,9INT21Hmovdl,0ahmovah,2int21hmovdl,0dhmovah,2int21hmovbl,ibuf+1movbh,0MOViBUF[BX+2],'$'MOVDX,OF
10、FSETibuf+2MOVAH,9INT21HRETbeginendpcodeendsendbegin编写源程序实现以下功能：将字节变量BVAR中存放的两位压缩BCD数转换为二进制数，并存入原字节变量中。程序运行后，如何查看字节变量BVAR中存放的内容？ 1.stacksegmentstack'stack'dw32dup(0)stackendsdatasegmentsttDB10,0,10dup(0
