点阵.asm

来自「单片机的实用程序代码」· 汇编 代码 · 共 53 行

XP0 EQU 30H 
XP2 EQU 31H 
ORG 0000H
AJMP MAIN
ORG 0030H
MAIN:
clr p2.1
SETB P2.0
RST: MOV XP0,#0H
MOV XP2,#0H
MOV R4,#0H;
LOOP:
NOP
LCALL LOOP1
NOP
NOP
LCALL LOOP2
INC R4
CJNE R4,#8H,LOOP
LJMP RST

LOOP1:
MOV P0,#0H
MOV DPTR,#TP2
MOV A,XP2
MOVC A,@A+DPTR
MOV P2,A
INC XP2
RET
LOOP2:  
MOV DPTR,#TP0
MOV A,XP0
MOVC A,@A+DPTR
MOV P0,A
INC XP0
RET


TP0: DB 30H,48H,44H,22H,44H,48H,30H,00H          ;心型
TP2: DB 07Fh,0BFh,0DFh,0EFh,0F7h,0FBh,0FDh,0FEh

;TP0: DB 00H,41H,22H,14H,08H,14H,22H,41H         ;叉型
;TP2: DB 07Fh,0BFh,0DFh,0EFh,0F7h,0FBh,0FDh,0FEh

;TP0: DB 00H,08H,14H,22H,41H,22H,14H,08H         ;菱型
;TP2: DB 07Fh,0BFh,0DFh,0EFh,0F7h,0FBh,0FDh,0FEh

;TP0: DB 00H,1EH,12H,12H,7FH,12H,12H,1EH          ;中字
;TP2: DB 07Fh,0BFh,0DFh,0EFh,0F7h,0FBh,0FDh,0FEh

;TP0: DB 00H,3CH,42H,42H,42H,42H,3CH,00H         ;圆形
;TP2: DB 07Fh,0BFh,0DFh,0EFh,0F7h,0FBh,0FDh,0FEh
END