Working on a new Modbus RTU library for Arduino

There are some libraries for Modbus RTU, but none of them seems to implement either a Master or an Slave. I don't understand why, because both share most of the code.

I want to test it on my picoLogic1284.

http://code.google.com/p/arduino-modbus-master-slave/ 

Refer to my last blog page:

http://arduino-experience.blogspot.com.es/2014/10/last-release-published-in-github.html