delayfunction.s

单片机开发资料光盘-双龙-686M.zip

	.module delayfunction.c
	.area text
	.dbfile E:\grc\licc\例子10.3.2\delayfunction.c
	.dbfunc s delay _delay fI
;              i -> R20,R21
;     delayValue -> R16,R17
	.even
_delay::
	rcall push_gset1
	.dbline 3{
; #include <io8515.h> /* 定义 8515 */
; void delay(int delayValue)
; {
	.dbline 5
	clr R20
	clr R21
	rjmp L5
L2:
	.dbline 5
L3:
	.dbline 5
	subi R20,255  ; offset = 1
	sbci R21,255
L5:
	.dbline 5
;  int i;
;     for(i=0;i<delayValue;i++) ;
	cp R20,R16
	cpc R21,R17
	brlt L2
	.dbline 6}
; }
L1:
	rcall pop_gset1
	ret
	.dbsym r i 20 I
	.dbsym r delayValue 16 I
	.dbfunc s main _main fI
;         runner -> R20
	.even
_main::
	.dbline 8{
; void main(void)
; {
	.dbline 9
;  unsigned char runner = 0x01;
	ldi R20,1
	.dbline 10
;  DDRB = 0xff; /* Port B 输出 */
	ldi R24,255
	out 0x17,R24
	.dbline 11
;  for (;;) /* 死循环 */
L7:
	.dbline 12
;       {
	.dbline 13
;        if (runner) runner <<= 1;
	tst R20
	breq L11
	.dbline 13
	lsl R20
	rjmp L12
L11:
	.dbline 14
;        else runner = 0x01;
	ldi R20,1
L12:
	.dbline 15
;        PORTB = runner;
	out 0x18,R20
	.dbline 16
;        delay(32767);
	ldi R16,255
	ldi R17,127
	rcall _delay
	.dbline 17
;        }
	.dbline 11
	.dbline 11
	rjmp L7
X0:
L6:
	ret
	.dbline 12}
	.dbsym r runner 20 c