Markku, Parallax software support is at the following ftp address: ftp://www.parallaxinc.com/pub/parallax/ You will find the latest version of their assembler and programming software as well as a "readme.txt" file for SPEP/SPASM v4.7 that includes all the assembler equates, instructions, conversion to Microchip instructions, etc. There are also several examples in the /pub directory. - Tom At 12:46 PM 4/6/98 +0300, Markku Parvikko wrote: >Could someone tell me where can I find some documents for parallax >16C84 assembler.