📄 127.lst
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C51 COMPILER V7.20 127 12/07/2007 14:56:39 PAGE 1
C51 COMPILER V7.20, COMPILATION OF MODULE 127
OBJECT MODULE PLACED IN 127.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 127.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <reg52.h>
2 sbit P1_0=P1^0;
3 sbit P1_1=P1^1;
4 sbit P1_2=P1^2;
5 sbit P1_3=P1^3;
6 sbit P1_4=P1^4;
7 sbit P1_5=P1^5;
8 sbit P1_6=P1^6;
9 sbit P1_7=P1^7;
10 void main (void)//主函数名
11 {
12 1
13 1 unsigned int a;//定义变量 a 为unsigned int 类型
14 1
15 1
16 1 do{//do while 组成循环
17 2
18 2 for (a=0;a<2000;a++);
19 2 P1_0 = 0;//65535次设P1.0为低电平,点亮LED1
20 2 for (a=0;a<40000;a++);
21 2 P1_1 = 1;
22 2 for (a=0;a<40000;a++);
23 2 P1_2 = 0;
24 2 for (a=0;a<40000;a++);
25 2 P1_3 = 1;
26 2 for (a=0;a<40000;a++);
27 2 P1_4 = 0;
28 2 for (a=0;a<40000;a++);
29 2 P1_5 = 1;
30 2 for (a=0;a<40000;a++);
31 2 P1_6 = 0;
32 2 for (a=0;a<40000;a++);
33 2 P1_7 = 1;
34 2 for (a=0;a<40000;a++);//空循环
35 2 P1_0 = 1;
36 2 for (a=0;a<40000;a++);
37 2 P1_1 = 0;
38 2 for (a=0;a<40000;a++);
39 2 P1_2 = 1;
40 2 for (a=0;a<40000;a++);
41 2 P1_3 = 0;
42 2 for (a=0;a<40000;a++);
43 2 P1_4 = 1;
44 2 for (a=0;a<40000;a++);
45 2 P1_5 = 0;
46 2 for (a=0;a<40000;a++);
47 2 P1_6 = 1;
48 2 for (a=0;a<40000;a++);
49 2 P1_7 = 0;
50 2
51 2 }while(1);
52 1 }
53
C51 COMPILER V7.20 127 12/07/2007 14:56:39 PAGE 2
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 454 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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