A.57974H B.57914H C.5883H D.58ECH
AND AL,AL JZ BRCH1 RCR AL,1 JZ BRCH2 RCL AL,1 INC AL JZ BRCH3 : 上述程序運行后,試回答: (1)當(dāng)(AL)=?時,程序轉(zhuǎn)向BRCH1 (2)當(dāng)(AL)=?時,程序轉(zhuǎn)向BRCH2 (3)當(dāng)(AL)=?時,程序轉(zhuǎn)向BRCH3
①(AL)=0,②(AL)=1,③(AL)=-1
STRING DB‘ABCDEFGHIJ’ MOVAH,01從鍵盤輸入字符1~9 INT21H ANDAL,0FH DECAL XORAH,AH MOVBX,OFFSETSTRING ADDBX,AX MOVBL,[BX] MOVAH,02H ;顯示輸出 INT21H : 試回答:
顯示器顯示字符‘D’。