實(shí)驗(yàn)報(bào)告子程序設(shè)計(jì)實(shí)驗(yàn)

1、實(shí)驗(yàn)5子程序?qū)嶒?yàn)一. 實(shí)驗(yàn)?zāi)康? 掌握主程序與子程序之間的調(diào)用關(guān)系及調(diào)用方法；2掌握子程序調(diào)用過程中近程調(diào)用與遠(yuǎn)程調(diào)用的區(qū)別；3掌握通過堆棧轉(zhuǎn)送參數(shù)的方法。4.掌握多模塊程序設(shè)計(jì)方法二. 實(shí)驗(yàn)內(nèi)容1.將BUF開始的10個(gè)單元中的二進(jìn)制數(shù)轉(zhuǎn)換成兩位十六進(jìn)制數(shù)的ASCIl碼，在屏幕上顯示出來。要求碼型轉(zhuǎn)換通過子程序HEXAC實(shí)現(xiàn),在轉(zhuǎn)換過程中，通過子程序 DISP實(shí)現(xiàn)顯示。DATAS SEGMENTBUF DB 00000111B,00100001B,00100010B,00000011B,00000101B,10000010B,10010011B,00100100B, 11100010B,010

2、10010BCAN DB $-BUF；定義常量 CANDATAS ENDSCODES SEGMENTASSUME CS:CODES,DS:DATASMAIN PROC FAR;主程序塊START:MOVAX,DATASMOVDS,AXMOVCL,10LEASI,BUFLOOP1:;調(diào)用子程序語句Call HEXACCall DISPDEC CANJNZ LOOP1EXIT:MOV AH,4CHINT 21HMAIN ENDP;二進(jìn)制轉(zhuǎn)換成十六進(jìn)制子程序HEXAC PROC NEARMOV BL,SIINC SIRETHEXAC ENDPDlSP PRoC NEAR；顯示子程序MOV CL,4M

3、OV CH,2MOVE:;移位語句ROL BL,CLMOV DL,BLAND DL,0FHADD DL,30HCMP DL,9JBE PRINTADD DL,07HPRINT:MOV AH,02H;顯示語句INT 21HDEC CHJNZ MOVEMOV DL,MOV AH,02HINT 21HRETDISP ENDPCODES ENDSEND STARTD = SmaSH5 .01 -exe07 21 22 03 05 82 93 24 E2 S22 編寫一個(gè)主程序，從鍵盤接收若干個(gè)字符，然后用遠(yuǎn)調(diào)用的方法，調(diào)用子程序統(tǒng)計(jì)字符 串中字符的個(gè)數(shù)子程序的參數(shù)是字符串的首地址TABLE,字符串長度

4、 N及字符” b子程序返回字符b”的個(gè)數(shù)參數(shù)傳送采用堆棧實(shí)現(xiàn)主程序在子程序返回后，顯示字符” b及其個(gè) 數(shù)(設(shè)為一位十六進(jìn)制數(shù))。DATA SEGMENTSTR1 DB Oah,Odh,PLEASE INPUT YOUR STRING:$ STR2 DB 0ah,0dh,THE NUMBER OF b is:$ TABLE DB 50, ? ,50 DUP(?),$DATA ENDSCODE SEGMENTASSUME CS: CODE, DS: DATASTART:MOVAX,DATAMOVDS,AXLEADX,STR1MOVAH,9INT21HLEADX,TABLEMOVAH,0AHINT

5、21HLEASI , TABLEMOVCL, SI+1MOVCH, 0INCSIINCSIMOVAL,bMOVAH,0PUSHSIPUSHCXPUSHAXCALLFAR PTR CHECKPOPAXMOVCL,ALLEADX,STR2MOVAH,9INT21HMOVDL,CLANDDL, 0FHCMPDL,9JBECANADDDL,7ADDDL,30HMOVAH,2INT21HMOVAH,4CHINT21HENDSSEGMENTASSUMECS:SCODEPROCFARPUSHBPMOVBP,SPMOVSI,BP+10MOVCX, BP+8MOVAX, BP+6XORAH, AHCMPAL,S

6、IJNECAN1INCAHCAN:EXIT:CoDESCoDECHECKAGAIN:CAN1:INC SlLooP AGAINMoVAL, AHMOVBP+10,AXPOPBPRET4CHECK ENDPSCODE ENDSEND STARTPLEfiSE INPUT VoUFl STRlNG = ehbuIhfbda,Eh THE NIIHRFR OF h is詞3請編寫一個(gè)程序來實(shí)現(xiàn)簡單的程序菜單顯示。(采用多模塊程序設(shè)計(jì)方法)顯示一個(gè)菜單要求用戶從下表中選擇：(1)HEXAC GAME(對應(yīng)程序1)(2)CHAR STATISTICS PROGRAM(對應(yīng)程序2)(3)PRESS “ E

7、SC”TO QUIT用戶作出選擇13時(shí)，顯示輸出要執(zhí)行操作的名字，如YoUr SeleCtion is 1,the ProgramWill execute HEXAC NUMBER GAME!”然后轉(zhuǎn)向相應(yīng)的程序去執(zhí)行，執(zhí)行結(jié)束前進(jìn)行退出的判斷，顯示一個(gè)提示信息will you ContinUe PrOgram really ？ (Y:N) ”要求用戶從鍵盤鍵入字符，若是“ Y”鍵，則繼續(xù)程序的執(zhí)行，若是“ N”鍵，則返回到菜單。若用戶選擇3,要求程序顯示提示信息PIeaSe PreSS ESC key to exit!” ,并能按要求正確退出。DATAS SEGMENTOPT DW YIDW

8、 ERmenu DB ODH,OAH,THE MENU:;顯示菜單DB 0DH,0AH,(1)HEXAC GAME;對應(yīng)一一 程序 1DB 0DH,0AH,(2)CHARSTATISTICS PROGRAM;對應(yīng) 程序2DB 0DH,0AH,(3)PRESS ESC TO QUIT$BUFDB00000111B,00100001B,00100010B,00000011B,00000101B,10000010B,10010011B,00100100B,11100010B,01010010BCANDB $-BUF；定義常量 CANstr1 DB 0DH,0AH,Your SeIeCtiO n is

9、 1,the PrOgram will execute HEXAC GAME!$str2 DB 0dh,0ah,Your SeIeCtiOn is 2,the PrOgram will execute CHARSTATISTICS PROGRAM!$str3 DB 0DH,0AH,will you ContinUe PrOgram really?(Y:N)$str4 DB 0DH,0AH,Please PreSS ESC key to exit!$TABLE DB 50, ? ,50 DUP(?),$Char1 db 0ah,0dh,PLEASE INPUT YOUR STRING:$Char

10、2 db 0ah,0dh,THE NUMBER OF b is:$DATAS ENDSCODES SEGMENTMAIN PROC FARASSUME CS:CODES,DS:DATASSTART:MOVAX,DATASMOVDS,AXXORDI,DISUbbx,bxXorsi,siLEADX,me nu;顯示主采單MOVAH,9INT21Hmovdl,0dh;顯示回車movah,2int21hMOVDL,0AH;顯示換行MOVAH,2INT21HMOVAH,1;輸入選項(xiàng)INT21HCMPAL,1JEYICMPAL,2JEERCMPAL,3JEQUITYI:MOVDI,0Ieadx,str1m

11、ovah,9int21hMOVCL,10LEASI,BUFCALLHEXACLOOP1:；調(diào)用子程序語句callHEXACcallDISPDECCANJNZLOOP1JMPCONTINUEER:MOVDI,02Hleadx,str2movah,9int21hLEADX,char1MOVAH,9INT21HLEADX,TABLEMoVAH,0AHINT21HLEASI , TABLEMOVCL, SI+1MOVCH, 0INCSIINCSIMOVAL,bMOVAH,0PUSHSIPUSHCXPUSHAXCALLCHECKPOPAXMOVCL,ALLEADX,char2MOVAH,9INT21HM

12、OVDL,CLANDDL, 0FHCMPDL,9JBECAN3ADDDL,7CAN3:ADDDL,30HMOVAH,2INT21HJMPCONTINUEQUIT:LEADX,str4MOVAH,9INT21HMOVAH,1INT21HCMPAL,1BHJEEXITCONTINUE:LEADX,str3MOVAH,9INT21HMOVAH,1INT21HCMPAL,YJEYES;輸入字符串；CX中為字符串長度；Sl指向串首址TABLE；AX中為待查字符；參數(shù)送堆棧；統(tǒng)計(jì)個(gè)數(shù)在AL中；顯示結(jié)果；顯示統(tǒng)計(jì)個(gè)數(shù)；退出的子程序；按ESC退出；用戶是否繼續(xù)執(zhí)行當(dāng)前程序；按y繼續(xù)，按n退出，不需區(qū)分大小寫C

13、MPAL,yJEYESCMPAL,NJESTARTCMPAL, nJESTARTYES:JMPoptDIEXIT:MOVAH,4CH;退出INT21HMAIN ENDP;繼續(xù)運(yùn)行當(dāng)前子程序CoDES ENDSHEXACCoDES SEGMENTASSUME CS:HEXACCODES HEXAC PROC FARMOV BL,SIINC SIRETHEXAC ENDPHEXACCODES ENDSDISPCODES SEGMENTASSUME CS:DISPCODESDISP PROC FAR；二進(jìn)制轉(zhuǎn)換成十六進(jìn)制子程序MOVMOVCL,4CH,2MOVE:ROLBL,CLMOVDL,BLAN

14、DDL,0FHADDDL,30HCMPDL,9JBEPRINTADDDL,07HPRINT:MOVAH,02HINT21HDECCHJNZMOVEMOVDL,MOVAH,02HINT21HRET;顯示子程序;移位語句;顯示語句DlSP ENDPDlSPCoDES ENDSCHARCoDE SEGMENTASSUME CS: CHARCODE；子程序部分CHECK PROC FARPUSHBPMOVBP,SPMOVSI,BP+10MOVCX, BP+8MOVAX, BP+6XORAH, AHAGAIN:CMPAL,SIJNE CAN1INCAHCAN1:INCSILOOP AGAINMOVAL,

15、 AHMOVBP+10,AXPOPBPRET4CHECK ENDPCHARCODE ENDSEND STARTTME HEMtnHbXHC GfiHE(2CHftH STATISTICS PRoGRflPRtS *ESC,* To QUEI1VOllr SF IECt i IS 1 ,t lie PrOgrdn WiIl execute HEXAC GAnEt21 25 03 咅5 S2 93t 24 E： 52 01UiLI you COnC iuc PrCyMn Feal1 ?YTHE MFNtUHEXAC GArlECHAH STftTISTlcS PHOGAAMaPBESS dTSC

16、To QUIT2VlDUr eion i甲 2FthC prrdR WilI CKECUtC OtAR STATISTICS PRoGRMPLFASF IHPl)T 0iR STRlHGiMbfhhhhsrijfhTME NUMBtR OF h is=Wiil VaU CUntinUe IPrCyrcall)7V =H)THE HKNtl:HEXAC GAHECHftR STATISTlCS FTOGHfiHPRFSS -ESC TO QUtT3卩】UEUH nff：; ESG kc v t_ti xitF一C1HEXAC GAtlEJ)CMH ETfiTISTieS PROCBflrtOPP

17、RESS i,ESC,* TO QUITlQUr s1c1o is IthV PrGJJr*m WiII execute HEXAC GANE21 22 陽3 2 93 252 OaMlIL j/vu Ct InUE preyram rvallyTV :HnHE HENUiC1HEXAC GAHEPHESS ESC1* TO QUIT*ur 3flIACtiOn Li Rtbc prorfln WilI execute QlAR STATISTICS PROGRAH? PLFftSF IHPUT VOnF STKfHG:Mbfhhbb=djfhHE HIJnBER OF b icz1L you

18、 GOfltinDICrn *JLlyTlt聲：FHE HEMJ =C1HEXC GArlEuchh Etatistics PRQGHfiH3)PRESS i,ESC1i Jo QUn三. 實(shí)驗(yàn)要求1. 第一個(gè)實(shí)驗(yàn)程序用子程序的近程調(diào)用實(shí)現(xiàn)。由于在調(diào)用HEXASC子程序時(shí)，子程序又調(diào)用了 DISP子程序，這叫子程序的嵌套調(diào)用。實(shí)驗(yàn)過程中可以從堆棧的內(nèi)容看到兩個(gè)子 程序的返回地址值。 由于是近調(diào)用，地址值只包括返回地址的段內(nèi)偏移量。在每個(gè)子程序的執(zhí)行中，檢查CS值是不變的。2第二個(gè)程序是利用遠(yuǎn)調(diào)用的方法調(diào)用子程序的。在遠(yuǎn)調(diào)用情況下，主程序與子程序 處在不同的邏輯代碼段中，可在子程序執(zhí)行中查看 CS值，它與主程序中的 CS值是不同的。子程序調(diào)用后，堆棧中保留了返回地址的段地址及段內(nèi)偏移量。3. 第二個(gè)程序中，主程序與子程序之間參數(shù)的傳送是由堆棧實(shí)現(xiàn)的。一段是將參數(shù)（此 處是串首址TABLE ,串的長度N及待統(tǒng)計(jì)的字符“ b”）順序壓如堆棧，在子程序調(diào)用后