mega16.lst

AVR 初学者

__start:
__text_start:
    002A E5CF      LDI	R28,0x5F
    002B E0D4      LDI	R29,4
    002C BFCD      OUT	0x3D,R28
    002D BFDE      OUT	0x3E,R29
    002E 51C0      SUBI	R28,0x10
    002F 40D0      SBCI	R29,0
    0030 EA0A      LDI	R16,0xAA
    0031 8308      STD	Y+0,R16
    0032 2400      CLR	R0
    0033 E6E0      LDI	R30,0x60
    0034 E0F0      LDI	R31,0
    0035 E010      LDI	R17,0
    0036 36E0      CPI	R30,0x60
    0037 07F1      CPC	R31,R17
    0038 F011      BEQ	0x003B
    0039 9201      ST	R0,Z+
    003A CFFB      RJMP	0x0036
    003B 8300      STD	Z+0,R16
    003C E5E4      LDI	R30,0x54
    003D E0F0      LDI	R31,0
    003E E6A0      LDI	R26,0x60
    003F E0B0      LDI	R27,0
    0040 E010      LDI	R17,0
    0041 35E4      CPI	R30,0x54
    0042 07F1      CPC	R31,R17
    0043 F021      BEQ	0x0048
    0044 95C8      LPM
    0045 9631      ADIW	R30,1
    0046 920D      ST	R0,X+
    0047 CFF9      RJMP	0x0041
    0048 940E005E  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: E:\单片机\单片机程序\AVR程序\闪烁灯\mega16.c
(0001) //ICC-AVR application builder : 2008-8-1 15:39:15
(0002) // Target : M16
(0003) // Crystal: 16.000Mhz
(0004) 
(0005) #include <iom16v.h>
(0006) #include <macros.h>
(0007) 
(0008) void port_init(void)
(0009) {
(0010)  PORTA = 0x00;
_port_init:
    004B 2422      CLR	R2
    004C BA2B      OUT	0x1B,R2
(0011)  DDRA  = 0xFF;
    004D EF8F      LDI	R24,0xFF
    004E BB8A      OUT	0x1A,R24
(0012)  PORTB = 0x00;
    004F BA28      OUT	0x18,R2
(0013)  DDRB  = 0x00;
    0050 BA27      OUT	0x17,R2
(0014)  PORTC = 0x00; //m103 output only
    0051 BA25      OUT	0x15,R2
(0015)  DDRC  = 0x00;
    0052 BA24      OUT	0x14,R2
(0016)  PORTD = 0x00;
    0053 BA22      OUT	0x12,R2
(0017)  DDRD  = 0x00;
    0054 BA21      OUT	0x11,R2
    0055 9508      RET
(0018) }
(0019) 
(0020) //call this routine to initialize all peripherals
(0021) void init_devices(void)
(0022) {
(0023)  //stop errant interrupts until set up0
(0024)  CLI(); //disable all interrupts
_init_devices:
    0056 94F8      BCLR	7
(0025)  port_init();
    0057 DFF3      RCALL	_port_init
(0026) 
(0027)  MCUCR = 0x00;
    0058 2422      CLR	R2
    0059 BE25      OUT	0x35,R2
(0028)  GICR  = 0x00;
    005A BE2B      OUT	0x3B,R2
(0029)  TIMSK = 0x00; //timer interrupt sources
    005B BE29      OUT	0x39,R2
(0030)  SEI(); //re-enable interrupts
    005C 9478      BSET	7
    005D 9508      RET
(0031)  //all peripherals are now initialized
(0032) }
(0033) 
(0034) void main()
(0035) {
(0036)   unsigned int i,j;
(0037)   init_devices();
_main:
  i                    --> R20
  j                    --> R22
    005E DFF7      RCALL	_init_devices
(0038)   PORTA = 0XAA;
    005F EA8A      LDI	R24,0xAA
    0060 BB8B      OUT	0x1B,R24
    0061 C015      RJMP	0x0077
(0039)   while(1)
(0040)   {
(0041)     for(i=0;i<1000;i++)
    0062 2744      CLR	R20
    0063 2755      CLR	R21
    0064 C00B      RJMP	0x0070
(0042)   	  for(j=0;j<1000;j++);
    0065 2766      CLR	R22
    0066 2777      CLR	R23
    0067 C002      RJMP	0x006A
    0068 5F6F      SUBI	R22,0xFF
    0069 4F7F      SBCI	R23,0xFF
    006A 3E68      CPI	R22,0xE8
    006B E0E3      LDI	R30,3
    006C 077E      CPC	R23,R30
    006D F3D0      BCS	0x0068
    006E 5F4F      SUBI	R20,0xFF
    006F 4F5F      SBCI	R21,0xFF
    0070 3E48      CPI	R20,0xE8
    0071 E0E3      LDI	R30,3
    0072 075E      CPC	R21,R30
    0073 F388      BCS	0x0065
(0043)     PORTA = ~PORTA;
FILE: <library>
    0074 B22B      IN	R2,0x1B
    0075 9420      COM	R2
    0076 BA2B      OUT	0x1B,R2
    0077 CFEA      RJMP	0x0062
    0078 9508      RET