Thomas Thorsen wrote:
> 
> Hello everybody
> 
> Has anybody got some routines for sending data to a computer via a serial
> port, using the PIC16F84. I need to send values between 0 and 255, and as
> far as i know this is ANSI instead of ASCII wich only permits 7 bit values
> (0-127). I have a simple routine for sending characters but i don't know if
> it can send values higher than 127.

Then this tutorial may be just what you need.It covers a lot of ground:

Need RS-232 routines for PICmicros without UARTs?

Basic Stamp Compatible PIC Source Book/Disk On-Line Version Free!
Now converted to MicroChip Code, still available in Parallax Code.

A collection of ready-to-use assembly language routines 
based on the instruction set of the BASIC Stamp ¨ single-board
computer by Scott Edwards Electronics.
                                                
Serin (receive data) receives a byte or string of bytes serially.
Optionally filters incoming data to a particular range of ASCII 
characters, such as numbers. 
 
Serin (convert # data) converts a numeric text string received 
by Serin into a 16-bit number. 
  
Serin (check qualifiers) determines whether text received by 
Serin matches a table of qualifiers (password).  

Serout (send data) transmits a byte or string of bytes serially
  
Serout (format # data) converts a 16-bit number into a counted 
string for transmission by Serout.   

Includes useful schematics.
For MicroChip code:
http://www.dontronics.com/convert.html
For Parallax code:
http://www.dontronics.com/see.html

Don McKenzie    mailto:don@dontronics.com      http://www.dontronics.com

World's Largest Range of Atmel/AVR and  PICmicro Hardware and  Software.
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html