led2.lst

16个单片机c语言实验程序

__start:
__text_start:
      46 EFCF      LDI	R28,0xFF
      47 E1D0      LDI	R29,0x10
      48 BFCD      OUT	0x3D,R28
      49 BFDE      OUT	0x3E,R29
      4A 51CE      SUBI	R28,0x1E
      4B 40D0      SBCI	R29,0
      4C EA0A      LDI	R16,0xAA
      4D 8308      STD	Y+0,R16
      4E 2400      CLR	R0
      4F E0E0      LDI	R30,0
      50 E0F1      LDI	R31,1
      51 E011      LDI	R17,1
      52 30E0      CPI	R30,0
      53 07F1      CPC	R31,R17
      54 F011      BEQ	0x0057
      55 9201      ST	R0,Z+
      56 CFFB      RJMP	0x0052
      57 8300      STD	Z+0,R16
      58 E8EC      LDI	R30,0x8C
      59 E0F0      LDI	R31,0
      5A E0A0      LDI	R26,0
      5B E0B1      LDI	R27,1
      5C E010      LDI	R17,0
      5D E000      LDI	R16,0
      5E BF0B      OUT	0x3B,R16
      5F 38EC      CPI	R30,0x8C
      60 07F1      CPC	R31,R17
      61 F021      BEQ	0x0066
      62 95C8      LPM
      63 9631      ADIW	R30,1
      64 920D      ST	R0,X+
      65 CFF9      RJMP	0x005F
      66 940E 0072 CALL	_main
_exit:
      68 CFFF      RJMP	_exit
FILE: D:\16实验程序\LED2\LED2.c
(0001) //led显示程序
(0002) //流水灯显示
(0003) #include<iom16v.h>
(0004) #define uchar unsigned char 
(0005) #define uint unsigned int 
(0006) 
(0007) //延时函数
(0008) void s_ms(unsigned int t)
(0009) {
(0010)     for(;t>1;t--)
_s_ms:
  t                    --> R16
      69 C002      RJMP	0x006C
      6A 5001      SUBI	R16,1
      6B 4010      SBCI	R17,0
      6C E081      LDI	R24,1
      6D E090      LDI	R25,0
      6E 1780      CP	R24,R16
      6F 0791      CPC	R25,R17
      70 F3C8      BCS	0x006A
      71 9508      RET
(0011)     {
(0012)     }
(0013) }
(0014) 
(0015) //主函数
(0016) main()
(0017) {
(0018) uchar led=1;
_main:
  led                  --> R20
      72 E041      LDI	R20,1
(0019) DDRD=0xff;         //端口A为输出
      73 EF8F      LDI	R24,0xFF
      74 BB81      OUT	0x11,R24
(0020) PORTD=0xff;        //关闭所有LED
      75 BB82      OUT	0x12,R24
      76 C013      RJMP	0x008A
(0021) while(1)
(0022)      {
(0023) 	  PORTD=~led;  //端口输出led值
      77 2E24      MOV	R2,R20
      78 9420      COM	R2
      79 BA22      OUT	0x12,R2
(0024) 	  led=led<<1;  //向左移动一位
      7A 0F44      LSL	R20
(0025) 	  s_ms(65535); //延时
      7B EF0F      LDI	R16,0xFF
      7C EF1F      LDI	R17,0xFF
      7D DFEB      RCALL	_s_ms
(0026) 	  s_ms(65535);
      7E EF0F      LDI	R16,0xFF
      7F EF1F      LDI	R17,0xFF
      80 DFE8      RCALL	_s_ms
(0027) 	  s_ms(65535);
      81 EF0F      LDI	R16,0xFF
      82 EF1F      LDI	R17,0xFF
      83 DFE5      RCALL	_s_ms
(0028) 	  s_ms(65535);
      84 EF0F      LDI	R16,0xFF
      85 EF1F      LDI	R17,0xFF
      86 DFE2      RCALL	_s_ms
(0029) 	  //PORTG=0xff;
(0030) 	  if(led==0)   //完成8位后重新开始
      87 2344      TST	R20
      88 F409      BNE	0x008A
(0031)          {
(0032) 	      led=1;
FILE: <library>
      89 E041      LDI	R20,1
      8A CFEC      RJMP	0x0077
      8B 9508      RET