delay.c

通用OSD控制(51单片机控制的TFTLCD源码,MTV018）

#pragma asm

?PR?___delay?DELAY   SEGMENT CODE 
	RSEG  ?PR?___delay?DELAY
	PUBLIC	___delay

___delay:
	USING	0

	MOV  	A,AR7
	JNZ	__delay?2

__delay?1:
	MOV  	A,AR6
	JZ	__delay?3
	DEC	AR6

__delay?2:
	DJNZ 	R7,__delay?2
	LJMP	__delay?1

__delay?3:
	RET

#pragma endasm