7-5-1.asm

书籍8051入门篇

;7-5-1.ASM
$MOD51
LOOP:	MOV	A,P3		;RAED FROM P3
	ANL	A,#0FH		;GET bit3-bit0 ONLY
	MOV	DPTR,#TABLE	;TABLE ADDRESS
	MOVC	A,@A+DPTR	;GET CODE
	MOV	P1,A		;ASCII OUTPUT	
	SJMP	LOOP
TABLE:
	DB	'0','1','2','3'
	DB	'4','5','6','7'
	DB	'8','9','A','B'
	DB	'C','D','E','F'
	END