分支程序的設(shè)計實驗報告

./實驗二分支程序設(shè)計一、實驗?zāi)康模?、學(xué)習(xí)分支程序的設(shè)計方法2、熟悉在PC機(jī)上建立、匯編、連接、調(diào)試和運(yùn)行匯編語言程序的過程二、實驗環(huán)境：硬件環(huán)境IBM/PC及其兼容機(jī)軟件環(huán)境操作系統(tǒng)DOS編輯程序EDIT或其他編輯程序 匯編程序MASM.EXE連接程序LINK.EXE調(diào)試程序DEBUG.EXE三、實驗容：1、在屏幕上顯示如下信息：1Panda2Cat 3Rabbit4Pig5EXIT<Pleasechoose1,2,3,4or5>若輸入1,顯示"Ilikepanda"后程序結(jié)束；若輸入2,顯示"Ilikecat"后程序結(jié)束；若輸入3,顯示"Ilikerabbit"后程序結(jié)束；若輸入4,顯示"Idon’tlikepig"后程序結(jié)束；若輸入5,程序直接結(jié)束；若輸入其它字符,顯示"Youpressanerrorkey!"后程序結(jié)束。1流程圖YYYYYNNNNN開始選項用戶輸入Al=1Al=2Al=3Al=4Al=5Youpressanerrorkey結(jié)束IlikepandaIlikecatIlikerabbitIlikedonotlikepig2源程序DATASEGMENTINFOR1DB0AH,0DH,"1Panda:$"INFOR2DB0AH,0DH,"2Cat:$"INFOR3DB0AH,0DH,"3Rabbit;$"INFOR4DB0AH,0DH,"4pig:$"INFOR5DB0AH,0DH,"5EXIT:$"INFOR6DB0AH,0DH,"<pleasechoose1,2,3,4or5>:$"INFOR7DB0AH,0DH,"IlikePanda:$"INFOR8DB0AH,0DH,"IlikeCat:$"INFOR9DB0AH,0DH,"IlikeRabbit;$"INFOR10DB0AH,0DH,"Ilikepig:$"INFOR11DB0AH,0DH,"youpressanerrorkey!:$"DATAENDS；數(shù)據(jù)段結(jié)束CODESEGMENT；代碼段開始ASSUMECS:CODE,DS:DATA；段尋址START:MOVAX,DATA;將data的數(shù)據(jù)存入ax中MOVDS,AX；為ds賦值MOVDX,OFFSETINFOR1；返回變量INFOR1段偏移地址[運(yùn)行后在屏幕上顯示字符1Panda:]MOVAH,09HINT21H；執(zhí)行九號功能調(diào)用MOVDX,OFFSETINFOR2MOVAH,09HINT21HMOVDX,OFFSETINFOR3MOVAH,09HINT21HMOVDX,OFFSETINFOR4MOVAH,09HINT21HMOVDX,OFFSETINFOR5；返回變量INFOR5段偏移地址[運(yùn)行后在屏幕上顯示字符5EXIT:]MOVAH,09HINT21HMOVDX,OFFSETINFOR6MOVAH,09HINT21HMOVAH,01HINT21HCMPAL,'1'JEPandaCMPAL,'2'JECatCMPAL,'3'JERabbitCMPAL,'4'JEPigCMPAL,'5'JEPENDJMPOtherPanda:MOVDX,OFFSETINFOR7 MOVAH,09H INT21H JMPPENDCat: MOVDX,OFFSETINFOR8 MOVAH,09H INT21H JMPPENDRabbit: MOVDX,OFFSETINFOR9 MOVAH,09H INT21HJMPPENDPig: MOVDX,OFFSETINFOR10 MOVAH,09H INT21HJMPPENDOther: MOVDX,OFFSETINFOR11 MOVAH,09H INT21HJMPPENDPEND:MOVAH,4CH INT21HCODEENDS ENDSTART2、從鍵盤輸入一字符,判斷該字符是小寫字母、大寫字母、數(shù)字或其它字符。若輸入為小寫字母,顯示"YouInputaLowercaseLetter！"；若輸入為大寫字母,顯示"YouInputaUppercaseLetter！"；若輸入為數(shù)字,顯示"YouInputaDigit！"；若輸入為其它字符,顯示"YouInputOtherLetter！"。編程指導(dǎo)數(shù)字09的ASCII碼為30H39H；大寫字母的ASCII碼為41H5AH,小寫字母的ASCII碼為61H7AH。本題目將字符分為小寫字母、大寫字母、數(shù)字及其它字符,根據(jù)鍵入字符的ASCII碼值判斷其所屬類型,并顯示相應(yīng)的信息。字符串顯示使用功能號為09H的DOS功能調(diào)用,接收鍵盤輸入的單個字符使用功能號為01H的DOS功能調(diào)用。YYYYYYYY顯示提示信息"PleasePressAnyKeytoinputaletter"及功能號為1的接收鍵盤輸入單個字符的指令序列開始結(jié)束素、、<AL><’0’<AL><=’9’<AL><’A’<AL><=’Z’<AL><’a’<AL><=’z’輸入的是小寫字母,顯示信息輸入的是大寫字母,顯示信息輸入的是數(shù)字,顯示有關(guān)信息輸入的是其它字符,顯示信息流程圖2源程序DATASEGMENTINFOR1DB0AH,0DH,"PleasePressAnyKeytoinputaletter:$"INFOR2DB0AH,0DH,"Youinputalowercaseletter!$"INFOR3DB0AH,0DH,"YouinputaUppercaseletter!$"INFOR4DB0AH,0DH,"YouinputaDigit!$"INFOR5DB0AH,0DH,"YouinputOtherletter!$"DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATA；顯示信息"PleasePressAnyKeytoinputaletter"的指令序列以及接收從鍵盤輸入一個字符的指令序列MOVDS,AXMOVDX,OFFSETINFOR1 MOVAH,09HINT21HMOVAH,01HINT21HCMPAL,'0' JBOTHER CMPAL,'9' JBEDIGIT CMPAL,'A' JBOTHER CMPAL,'Z' JBEUPPER CMPAL,'a' JBOTHER CMPAL,'z' JBELOWER JMPPENDLOWER:；顯示"YouInputaLowercaseLetter！"的指令序列MOVDX,OFFSETINFOR2 MOVAH,09H INT21H JMPPEND；注意執(zhí)行完一個分支后應(yīng)使程序跳出UPPER:；顯示"YouInputaUppercaseLetter"的指令序列MOVDX,OFFSETINFOR3 MOVAH,09H INT21H JMPPENDDIGIT:；顯示"YouInputaDigit!"的指令序列MOVDX,OFFSETINFOR4 MOVAH,09H INT21H JMPPENDOTHER:；顯示"YouInputOtherLette