ac13-1.lst

AVR学习资料

__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 940E006E  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: d:\MYDOCU~1\ac13-1\ac13-1.c
(0001) #include <iom16v.h>
(0002) #include <macros.h>
(0003) //==================================
(0004) void port_init(void)
(0005) {
(0006)  PORTA = 0xFF; 
_port_init:
    004B EF8F      LDI	R24,0xFF
    004C BB8B      OUT	0x1B,R24
(0007)  DDRA  = 0x00; 
    004D 2422      CLR	R2
    004E BA2A      OUT	0x1A,R2
(0008)  PORTB = 0xFF; 
    004F BB88      OUT	0x18,R24
(0009)  DDRB  = 0xFF; 
    0050 BB87      OUT	0x17,R24
(0010)  PORTC = 0xFF; 
    0051 BB85      OUT	0x15,R24
(0011)  DDRC  = 0x00; 
    0052 BA24      OUT	0x14,R2
(0012)  PORTD = 0xFF; 
    0053 BB82      OUT	0x12,R24
(0013)  DDRD  = 0x02; 
    0054 E082      LDI	R24,2
    0055 BB81      OUT	0x11,R24
    0056 9508      RET
(0014) }
(0015) //**********************************************
(0016) void uart0_init(void)
(0017) {
(0018)  UCSRB = 0x00; 
_uart0_init:
    0057 2422      CLR	R2
    0058 B82A      OUT	0x0A,R2
(0019)  UCSRA = 0x02;
    0059 E082      LDI	R24,2
    005A B98B      OUT	0x0B,R24
(0020)  UCSRC = 0x06;
    005B E086      LDI	R24,6
    005C BD80      OUT	0x20,R24
(0021)  UBRRL = 0x67;
    005D E687      LDI	R24,0x67
    005E B989      OUT	0x09,R24
(0022)  UBRRH = 0x00; 
    005F BC20      OUT	0x20,R2
(0023)  UCSRB = 0x18;
    0060 E188      LDI	R24,0x18
    0061 B98A      OUT	0x0A,R24
    0062 9508      RET
(0024) }
(0025) //**********************************************
(0026) void init_devices(void) 
(0027) {
(0028)  port_init();
_init_devices:
    0063 DFE7      RCALL	_port_init
(0029)  uart0_init();
    0064 DFF2      RCALL	_uart0_init
    0065 9508      RET
(0030)  }
(0031) //**********************************************
(0032) void uart0_send(unsigned char i)
(0033) {
(0034) while(!(UCSRA&(1<<UDRE)));
_uart0_send:
  i                    --> R16
    0066 9B5D      SBIS	0x0B,5
    0067 CFFE      RJMP	_uart0_send
(0035) UDR=i;
    0068 B90C      OUT	0x0C,R16
    0069 9508      RET
(0036) }
(0037) //************************************************
(0038) unsigned char uart0_receive(void) 
(0039) {
(0040) while(!(UCSRA&(1<<RXC)));
_uart0_receive:
    006A 9B5F      SBIS	0x0B,7
    006B CFFE      RJMP	_uart0_receive
(0041) return UDR;
    006C B10C      IN	R16,0x0C
    006D 9508      RET
(0042) }
(0043) //---------------------------------------------------------------
(0044) void main(void)
(0045) {
(0046) unsigned char temp;
(0047) init_devices();
_main:
  temp                 --> R20
    006E DFF4      RCALL	_init_devices
    006F C006      RJMP	0x0076
(0048)  while(1) 
(0049)  {
(0050)  temp=uart0_receive();
    0070 DFF9      RCALL	_uart0_receive
    0071 2F40      MOV	R20,R16
(0051)  PORTB=~temp; 
    0072 2E24      MOV	R2,R20
    0073 9420      COM	R2
    0074 BA28      OUT	0x18,R2
(0052)  uart0_send(temp);
FILE: <library>
    0075 DFF0      RCALL	_uart0_send
    0076 CFF9      RJMP	0x0070
    0077 9508      RET