temperature controller using DS18B20 & 3x7segment LED displays

[JANIS]

Hallo!
Here is my digital thermometer using 7-segment LED displays. Only the dot that comes next to "C" should be created as a separate point (LED) at the top, because the standard point is at the bottom.
Thank you to everyone who helped me with this code.

 #chip 16F886,4
  #config osc = int
'support for Common Cathode
    #define 7Seg_CommonAnode
    #define DISP_SEG_A PORTB.0
    #define DISP_SEG_B PORTB.1
    #define DISP_SEG_C PORTB.2
    #define DISP_SEG_D PORTB.3
    #define DISP_SEG_E PORTB.4
    #define DISP_SEG_F PORTB.5
    #define DISP_SEG_G PORTB.6
    #define DISP_SEG_DOT PORTB.7

    #define Disp_Sel_1 PortA.1
    #define Disp_Sel_2 PortA.2
    #define Disp_Sel_3 PortA.3
    dir portb out
    dir porta.1 out
    dir porta.2 out
    dir porta.3 out

#include <DS18B20.h>
' DS18B20 port settings
#define DQ PortC.4

InitTimer0 Osc, PS0_16
On Interrupt Timer0Overflow Call showdigit
dim Nun2, Num3 as integer

dig =1

 main:
ReadDigitalTemp

  If RxData.7 = 1 Then
    sign=1
    DSint = 0 - DSint
    ''Negative numbers are represented in two's complement plus one format.
    '' For example, -1 is really 65535, -2 is 65534, and so forth.
    Else
    DSint =DSint
    sign=0
    end if
Num3 = DSInt/10
Num2 = DSInt%10
goto main

sub  showdigit
    Select Case dig
case 1
 If sign =1 Then
Displaychar 1, 45 
Else
Displaychar 1, "C", 1 'display, character, dot 1=yes)
end if                 ''two undocumented ascii characters for the 7 segment display,
''space and minus (32 and 450). Otherwise the DisplayChar function must be a letter or ''number.
    Case 2
     DisplayValue 2, Num3
    Case 3
 DisplayValue 3, Num2
    Case Else
        dig = 1
    End Select
    dig++
    If dig > 3 then dig =1
end sub

[JANIS]

I accidentally placed this code under the theme Demonstration code but it was need below the topic User submitted projects. How can i change (Delete from here)?

[Anobium]

By magic ...moved

[JANIS]

:) Thank you!

[JANIS]

Hello to all! However, using this code still revealed weaknesses that I do not know how to fix. The problem is that the sensor is not read from time to time, at that point the indication shows value of 0. This is due to overflow of Timer 0. If prescaler changes to PS0_32 or higher, this problem disappears. But then the displays flash, the frequency is low. Video attached https://youtu.be/le9v-fbVRbc

Help .please!