main.lst

基于atmel avr mega8和gcc编译器的读flash固定位置的时钟校准字节的程序。

   1               		.file	"main.c"
   2               		.arch atmega8
   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               	.LFB2:
  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               	.LBB2:
  30               	.LM2:
  31 0008 EEEF      		ldi r30,lo8(8190)
  32 000a FFE1      		ldi r31,hi8(8190)
  33               	/* #APP */
  34 000c 1491      		lpm r17, Z
  35               		
  36               	/* #NOAPP */
  37               	.LBE2:
  38               	.LM3:
  39 000e 11BF      		out 81-0x20,r17
  40               	.LM4:
  41 0010 612F      		mov r22,r17
  42 0012 87E0      		ldi r24,lo8(7)
  43 0014 90E0      		ldi r25,hi8(7)
  44 0016 00D0      		rcall eeprom_write_byte
  45               	.LM5:
  46 0018 1F5F      		subi r17,lo8(-(1))
  47 001a 612F      		mov r22,r17
  48 001c 88E0      		ldi r24,lo8(8)
  49 001e 90E0      		ldi r25,hi8(8)
  50 0020 00D0      		rcall eeprom_write_byte
  51               	.L2:
  52               	.LM6:
  53 0022 FFCF      		rjmp .L2
  54               	/* epilogue: frame size=0 */
  55               	/* epilogue: noreturn */
  56               	/* epilogue end (size=0) */
  57               	/* function main size 21 (17) */
  58               	.LFE2:
  60               	.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\Tom\LOCALS~1\Temp/ccY3aaaa.s:20     .text:00000000 main

UNDEFINED SYMBOLS
__do_copy_data
__do_clear_bss
__stack
eeprom_write_byte