main.lst

avr test 函数可以实现较精确的定时

   1               		.file	"main.c"
   2               		.arch atmega16
   3               	__SREG__ = 0x3f
   4               	__SP_H__ = 0x3e
   5               	__SP_L__ = 0x3d
   6               	__tmp_reg__ = 0
   7               	__zero_reg__ = 1
   8               		.global __do_copy_data
   9               		.global __do_clear_bss
  17               	.Ltext0:
  18               	.global	main
  20               	main:
  21               	.LFB6:
  22               	.LM1:
  23               	/* prologue: frame size=0 */
  24 0000 C0E0      		ldi r28,lo8(__stack - 0)
  25 0002 D0E0      		ldi r29,hi8(__stack - 0)
  26 0004 DEBF      		out __SP_H__,r29
  27 0006 CDBF      		out __SP_L__,r28
  28               	/* prologue end (size=4) */
  29               	.LM2:
  30 0008 8FEF      		ldi r24,lo8(-1)
  31 000a 8BBB      		out 59-0x20,r24
  32               	.LM3:
  33 000c 8ABB      		out 58-0x20,r24
  34 000e ACE4      		ldi r26,lo8(7500)
  35 0010 BDE1      		ldi r27,hi8(7500)
  36 0012 C0E0      		ldi r28,hlo8(7500)
  37 0014 D0E0      		ldi r29,hhi8(7500)
  38               	.L2:
  39               	.LM4:
  40 0016 41E0      		ldi r20,lo8(1)
  41               	.LM5:
  42 0018 30E0      		ldi r19,lo8(0)
  43               	.L19:
  44               	.LM6:
  45 001a 842F      		mov r24,r20
  46 001c 8095      		com r24
  47 001e 8BBB      		out 59-0x20,r24
  48 0020 29E0      		ldi r18,lo8(9)
  49               	.L18:
  50               	.LBB2:
  51               	.LBB3:
  52               	.LBB4:
  53               	.LBB5:
  54               	.LM7:
  55 0022 CD01      		movw r24,r26
  56               	/* #APP */
  57 0024 0197      		1: sbiw r24,1
  58 0026 F1F7      		brne 1b
  59               	/* #NOAPP */
  60               	.LBE5:
  61               	.LBE4:
  62               	.LBE3:
  63               	.LBE2:
  64               	.LM8:
  65 0028 2150      		subi r18,lo8(-(-1))
  66 002a 27FF      		sbrs r18,7
  67 002c FACF      		rjmp .L18
  68               	.LM9:
  69 002e 440F      		lsl r20
  70               	.LM10:
  71 0030 3F5F      		subi r19,lo8(-(1))
  72 0032 3830      		cpi r19,lo8(8)
  73 0034 90F3      		brlo .L19
  74 0036 EFCF      		rjmp .L2
  75               	/* epilogue: frame size=0 */
  76               	/* epilogue: noreturn */
  77               	/* epilogue end (size=0) */
  78               	/* function main size 30 (26) */
  79               	.LFE6:
  81               	.Letext0:
DEFINED SYMBOLS
                            *ABS*:00000000 main.c
                            *ABS*:0000003f __SREG__
                            *ABS*:0000003e __SP_H__
                            *ABS*:0000003d __SP_L__
                            *ABS*:00000000 __tmp_reg__
                            *ABS*:00000001 __zero_reg__
C:\DOCUME~1\ADMINI~1.HHW\LOCALS~1\Temp/ccc5aaaa.s:20     .text:00000000 main

UNDEFINED SYMBOLS
__do_copy_data
__do_clear_bss
__stack