newbie question

[Alektric]

This is the subroutine for 2 digit 7 segment display that I used to make a similar thing:

DIGIT:
B11 = B10 / 10
B12 = B10 // 10
LookUp B11, ( 119, 36, 107, 109, 60, 93, 95, 100, 127, 124 ), B13
LookUp B12, ( 119, 36, 107, 109, 60, 93, 95, 100, 127, 124 ), B14
Poke PORTC, B13
Poke PORTB, B14
Return

The idea is that the number you want to display is in variable B10 when you call DIGIT. It's then split in two and sent to port c and port b. This means that 7 pins from both port b and port c are used up but it's very simple to wire up and leaves you with RB7 to run the POT command on your thermistor.

I put this in comments:
' ---6
' ¦4 ¦5
' ---3
' ¦1 ¦2
' ---0
to remind me which pin goes to which segment. The numbers in the lookup command are calculated according to which pin is connected to which segment. If you change a pin - segment connection, you will have to calculate new values for the LOOKUP command.

[Lcj100]

This is the subroutine for 2 digit 7 segment display that I used to make a similar thing:

DIGIT:
B11 = B10 / 10
B12 = B10 // 10
LookUp B11, ( 119, 36, 107, 109, 60, 93, 95, 100, 127, 124 ), B13
LookUp B12, ( 119, 36, 107, 109, 60, 93, 95, 100, 127, 124 ), B14
Poke PORTC, B13
Poke PORTB, B14
Return

The idea is that the number you want to display is in variable B10 when you call DIGIT. It's then split in two and sent to port c and port b. This means that 7 pins from both port b and port c are used up but it's very simple to wire up and leaves you with RB7 to run the POT command on your thermistor.

I put this in comments:
' ---6
' ¦4 ¦5
' ---3
' ¦1 ¦2
' ---0
to remind me which pin goes to which segment. The numbers in the lookup command are calculated according to which pin is connected to which segment. If you change a pin - segment connection, you will have to calculate new values for the LOOKUP command.

Thanks for ur idea.i would like to ask u some question.Can i know what is the meaning of Poke command?Can u show me the example how to calculate the numbers in lookup command?What is the meaning of B12 = B10 // 10?

[Archangel]

Can u show me the example how to calculate the numbers in lookup command?What is the meaning of B12 = B10 // 10?

You have to think binary to figure out the numbers in the lookup table, so here goes . . . take a port to drive displays, I pick PortB
connect the segments to the port, to make it easy on myself, I will select ports in numerical/alphabetical order, so PortB.0 is segment A, PortB.1 is segment b, PortB.2 is segment C . . . . Now to make zero you must illuminate the following segments: abcdef, which means portsB 012345 which translates to %00111111 or decimal 63 or hex 3F. The number 1 would be binary %00000110 or Dec. 6 or Hex 06 and so on and so forth.

[mister_e]

Can i know what is the meaning of Poke command?

Poke is a PBC statement (still usable in PBP) who write to a specific register.

POKE PORTB, 10

will write 10 to PORTB

In PBP, you may reduce it to
PORTB=0
add a semicolon at the end of the line and it's in C

// is the modulus.

PBP performs 16x16 division. The '/' operator returns the 16-bit result. The '//' operator returns the remainder. This is sometimes referred to as the modulus of the number.

Example

W1 = W0 / 1000 ‘ Divide value in W0 by 1000 and place the result in W1
W2 = W0 // 1000 ‘ Divide value in W0 by 1000 and place the remainder in W2