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C51 COMPILER V7.09 INPUT 12/22/2005 15:20:13 PAGE 1
C51 COMPILER V7.09, COMPILATION OF MODULE INPUT
OBJECT MODULE PLACED IN input.OBJ
COMPILER INVOKED BY: D:\Program Files\C51\BIN\C51.EXE input.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include
2 unsigned char code tab[4][4]={{'1','4','7','#'},
3 {'2','5','8','0'},
4 {'3','6','9','*'},
5 {'A','B','C','D'}}; //0到F的16个键植
6
7 void delay(unsigned char a)
8 {
9 1 unsigned char i;
10 1 while(a--)
11 1 for(i=100;i>0;i--)
12 1 ;
13 1 }
14
15 char kbscan() //键盘扫描
16 {
17 1 unsigned char hang,lie;
18 1 if(P3!=0x0f)
19 1 delay(5);
20 1 if(P3!=0x0f)
21 1 {
22 2 switch(P3&0xf0)
23 2 {
24 3 case 0x10:hang=0;break;
25 3 case 0x20:hang=1;break;
26 3 case 0x40:hang=2;break;
27 3 case 0x80:hang=3;break;
28 3 }
29 2 P3=0xf0;
30 2 P3=0xf0;
31 2 switch(P3&0x0f)
32 2 {
33 3 case 1:lie=0;break;
34 3 case 2:lie=1;break;
35 3 case 4:lie=2;break;
36 3 case 8:lie=3;break;
37 3 }
38 2 P3=0x0f;
39 2 while(P3!=0x0f);
40 2 return (tab[hang][lie]);
41 2 }
42 1 return 0;
43 1 }
44
45
46
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 158 ----
CONSTANT SIZE = 16 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- 2
IDATA SIZE = ---- ----
C51 COMPILER V7.09 INPUT 12/22/2005 15:20:13 PAGE 2
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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