out.a51

来自「不少单片机C代码」· A51 代码 · 共 30 行

EXTRN	CODE(DELAY)
PUBLIC	STATE,OUT
ROM	SEGMENT	CODE
RAM	SEGMENT	DATA
OUTPGM	SEGMENT	CODE

RSEG	ROM
TABLE:	DB	00001010B
	DB	00001001B
	DB	00000101B
	DB	00000110B

RSEG	RAM
STATE:	DS	1

XSEG	AT	0FFC0H
PORT:	DS	1

RSEG	OUTPGM
OUT:	MOV	DPTR,#TABLE
	MOV	A,STATE
	MOVC	A,@A+DPTR
	MOV	DPTR,#PORT
	MOVX	@DPTR,A
        MOV	P1,A
	MOV	R6,#08
	LCALL	DELAY
	RET
	END