ATMEL AVR 单片机开发套件和大量C和ASM代码工程

源代码在线查看: delayfunction.s

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关键词: ATMEL ASM AVR 单片机
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相关代码

					.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  /* 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					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 					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
							

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