number.asm

来自「做文字显示的」· 汇编 代码 · 共 31 行

			ORG 00H 
START:		JB P1.7,DIR1 
		MOV DPTR,#TABLE1 
			SJMP DIR 
DIR1:		MOV DPTR,#TABLE2 
DIR:		MOV R0,#00H 
	    MOV R1,#0FEH 
NEXT:		MOV A,R0 
		MOVC A,@A+DPTR 
			MOV P0,A 
		MOV A,R1 
			MOV P2,A 
			LCALL DAY       
                MOV P2,#0FFH  
		INC R0 
			RL A 
			MOV R1,A 
		CJNE R1,#0DFH,NEXT 
			SJMP START 
DAY:			MOV R6,#4
D1:			MOV R7,#248 
		DJNZ R7,$ 
			DJNZ R6,D1 
			RET 
TABLE1:		DB 06H,5BH,4FH,66H,6DH 
TABLE2:       DB 76H,79H,38H,38H,3FH 
			END