NEXT1: CMP DL,[BX]

NEXT1: CMP DL,[BX]JBE NEXT2MOV DL,[BX]NEXT2: LOOP AGAINMOV HIGH,ALMOV LOW,DLRETSEARCH ENDPMOV DL,20HMOV AH,2INT 21HMOV CX,2LP: ROR BL,4MOV AL,BLOR AL,30HMOV DL,ALMOV AH,2INT 21HLOOP LPRET.EXIT例4.15 用查表指令实现“5”和“8”循环显示。设从“0”到“9”显示的代码表如表4.2所示。七段显示器的端口地址为53H;“5”的代码连续送给显示器100次,以后又送“8”的代码100次,再循环执行。写出汇编源程序。表4.2 显示数字与七段代码对应表ISPLAY PROC ND AL,0FH ISPLAY ENDP ND