Adding code to Singularity

Peace be up on you
Yesterday, I have publish post about starting up the Singularity project, today I was seeking for more, in my opinion more is get my self into it, here what I have done, I have start a debug session with the virtual machine, and I go with code, step by step execution, and I found that there is file called shell where all code get back to it, guess what is this, it is the main loop, where the system receive its commands. I have added a few lines, the lines that I have added is, adding the new command name ,description and the call back function that will be used when the user enter the command, so I have write few lines for it, and I rebuild the project in "Tiny" configuration , here is snapshots for what I have got

Here is the command that I have added to the command list that is available in singularity

Here is the result when call the command.
What I have done is not fully right :D, I should read more about the architecture the documents are available at this path
%Singularity Folder%\docs\Design Notes
soon I will try to add more effective code, like showing some Arabic characters on the screen, I hope that I got some time to do that, Thanks for your time

BR
Ahmed Essam