88bat.asm

8*8点阵驱动程序

;**************      8  乘  8  点阵***********************
;二级地址
;ASCII  表
Dian_TAB:  DB  0E7H,0DBH,0BDH,0BDH,81H,0BDH,0BDH,0BDH  ;A
           DB  0C1H,0BDH,0BDH,0BDH,0C1H,0BDH,0BDH,0C1H  ;B
           DB  87H,0FBH,0FDH,0FDH,0FDH,0FDH,0FBH,87H    ;C
           DB  0EBH,05H,5CH,0DDH,8DH,55H,0DDH,0CDH      ;你
           DB  0EFH,0EEH,08H,0AAH,0AAH,0DDH,0AAH,7BH   ;奴

;一级地址
ABC_TAB:     DB 00H,08H,10H,18H,20H,28H,30H,38H,40H,48H,50H
             DB 58H,60H,68H,70H,78H,80H
;
KEYWORD   EQU    30H  ;ASCII 码偏移量（就是ASCII 码）
ABCWROD   EQU    25H  ;零时内存
;查表子程序
; 显示RAM地址70H--77H    
MAIN:   MOV  R0,#77H
        MOV  A,KEYWORD
        MOV  DPTR,#ABC_TAB
        MOVC A,@A+DPTR
        MOV  ABCWROD,A
        MOV  R1,ABCWROD
        MOV  R2,#8
MAIN_LOOP:MOV  A,R1
        MOV  DPTR,#Dian_TAB
        MOVC  A,@A+DPTR
        MOV  @R0,A
        DEC   R0
        INC   R1
        DJNZ  R2,MAIN_LOOP
        RET 
;