匯編語言實(shí)現(xiàn)四則運(yùn)算

匯編語言實(shí)現(xiàn)四則運(yùn)算匯編語言實(shí)現(xiàn)四則運(yùn)算匯編語言實(shí)現(xiàn)四則運(yùn)算DISPMACROVARMOVAH,2MOVDL,VARINT21HENDMDATASSEGMENTDATA0DB'PLEASEINPUTANUMBER(0-999):','$'DATA1DB'overflowinputagain:','$'DATA2DB'PLEASEINPUTANOTHERNUMBER(EXP:123)','$'DATA3DB'PLEASEINPUTANOPREATOR:','$'DATA4DB'THEOPERATORISWRONG,INPUTAGAIN:','$'OPERDB?FLAGDB0FLAG1DB0DATADW3DUP(?)DATASENDSSTACKSSEGMENTDW256DUP(?)STACKSENDSCODESSEGMENTASSUMECS:CODES,DS:DATAS,SS:STACKSSTART:MOVAX,DATASMOVDS,AXMOVDI,OFFSETDATA0

;提示信息CALLDISPLMOVSI,0

;SI作為數(shù)組下標(biāo)CALLINPUTCALLNEWLINEMOVDI,OFFSETDATA3

;提示信息CALLDISPLAGAIN:MOVAH,1

;1號(hào)功能輸入四則運(yùn)算符INT21HCMPAL,'+'

;判斷輸入的可否是

+，-，*，/JENEXT0CMPAL,'-'JENEXT0CMPAL,'*'JENEXT0CMPAL,'/'JENEXT0CALLNEWLINE;輸入的運(yùn)算符不合法，從頭輸入MOVDI,OFFSETDATA4CALLDISPLJMPAGAINNEXT0:MOVOPER,AL;保留運(yùn)算符CALLNEWLINEMOVDI,OFFSETDATA2;輸入第二個(gè)操作數(shù)CALLDISPLMOVSI,2CALLINPUTMOVAX,DATA[0]MOVBX,DATA[2]CMPOPER,'+';判斷是那種操作，進(jìn)行運(yùn)算JENEXT1CMPOPER,'-'JENEXT2CMPOPER,'*'JENEXT3CMPOPER,'/'JENEXT4NEXT1:;加法運(yùn)算CLCADCAX,BXJNCN1MOVFLAG,1;判斷可否進(jìn)位N1:MOVDATA[4],AX;運(yùn)算結(jié)果放入內(nèi)存JMPOUTPUTNEXT2:;減法運(yùn)算CLCSBBAX,BXJNCN2MOVFLAG,1;判斷可否借位NEGAXN2:MOVDATA[4],AX;運(yùn)算結(jié)果放入內(nèi)存JMPOUTPUTNEXT3:;乘法運(yùn)算CLCMOVDX,0MULBXMOVDATA[4],AX;運(yùn)算結(jié)果放入內(nèi)存JMPOUTPUTNEXT4:;除法運(yùn)算CLCMOVDX,0CMPBX,0JNZN4;判斷除數(shù)可否為0CALLNEWLINECALLERRORCALLNEWLINEMOVDI,OFFSETDATA2CALLDISPLMOVSI,2CALLINPUTJMPNEXT4N4:DIVBXMOVDATA[4],AX;運(yùn)算結(jié)果放入內(nèi)存OUTPUT:CALLNEWLINEMOVDI,0CALLPRINTDISPOPERMOVDI,2CALLPRINTDISP'='CMPFLAG,1JNZNEXT5DISP'-'NEXT5:MOVDI,4CALLPRINT

;輸出第一個(gè)操作數(shù);輸出運(yùn)算符;輸出第二個(gè)操作數(shù);輸出結(jié)果MOVAH,4CHINT21H;輸入函數(shù)INPUTPROCNEARPUSHAXPUSHBXPUSHCXPUSHDXMOVBX,0;BX寄存十進(jìn)制數(shù)CLCMOVDX,0L0:;輸入數(shù)字MOVAH,1INT21HCMPAL,0DHJEL2SUBAL,30HJLL1CMPAL,9JGL1

;判斷數(shù)字可否合法;變換成十進(jìn)制數(shù)

MOVAH,0XCHGAX,BXMOVCX,10MULCXADDAX,BXJCL1XCHGAX,BXJMPL0

;變換成10進(jìn)制數(shù)放入內(nèi)存L1:MOVDX,0MOVBX,0CALLNEWLINECALLERRORJMPL0L2:CMPDX,0JNZL1MOVDATA[SI],BXMOVDX,0POPDXPOPCXPOPBXPOPAXRETINPUTENDP;提示信息DISPLPROCNEARMOVAH,9MOVDX,DIINT21HRETDISPLENDP;回車換行NEWLINEPROCNEARPUSHAXPUSHDXMOVDL,0AHMOVAH,2INT21HMOVDL,0DHMOVAH,2INT21HPOPDXPOPAXRETNEWLINEENDP;錯(cuò)誤提示ERRORPROCNEARPUSHAXPUSHDXMOVDX,OFFSETDATA1MOVAH,9INT21HPOPDXPOPAXRETERRORENDP;顯示函數(shù)PRINTPROCNEARPUSHAXPUSHBXPUSHCXPUSHDXMOVCX,0MOVBX,10MOVAX,DATA[DI]LAST:MOVDIV

DX,0BX

;除10壓棧PUSHDXINCCXCM