sdelay.asm

来自「CAN__组建现场总线系统设计技术(光盘)」· 汇编 代码 · 共 35 行

	NAME	SOFTDELAY

;==========================================
;	软件延时
;==========================================

	;void delay10us()
?PR?DELAY10US?DELAY10US	SEGMENT CODE
	public DELAY10US,DELAY1MS

RSEG	?PR?DELAY10US?DELAY10US
	;call this function	;2
DELAY10US:
	NOP
	NOP
	NOP
	NOP
	NOP
	NOP
	RET		;2



	;call this function	;2
DELAY1MS:
	MOV R4,#5	;1
LP:	MOV R5,#98	;1
	DJNZ R5,$	;2
	DJNZ R4,LP	;2
	RET		;2

	END

; 2+1+(1+2*y+2)*x+2=1000
;  x=5 y=98