New programming language ccz80

No, the source is not open.

Well, I can say about the additional value of ccz80 thet it's very simply, and simply means minor possibility of errors. I try program in other C compilers for Z80 and I found some problems (maybe I am a little clumsy ). So, I decided make this compiler and if there is some problem I can resolve it. Of course, I am comprometed to solve any problem in this compiler, if my word is valid ).
The first step to use ccz80 in MSX is to make a good library of funcions. Unfortunately I don't know nothing about MSX and I hope someone help me.

That's a neat idea but... a project like this should really be open source.
Just imagine someone writing hundreds of lines of code in this new language, then suddenly the author loses interest in development, or even some disaster happens (e.g. the author's hard-disk gets trashed)... then what happens? Suddenly all of your programs written in said language become unsupported.
So, as much as I believe that you can solve any issues in the compiler, I don't feel exactly safe about writing programs for it.
That's only my opinion of course.
If you need any assistance, maybe I can help!

Well Jannone, I have the compromise for the maintenance of this compiler, It's a personal challenge for me. If any day I can't resolve a problem I will release the source, but at this moment I reserve this.

As I said, I could write a set of functions equivalent to MSX Basic commands and order, you can contact with my by e-mail or in ccz80 forum. Thanks.

Dinoneno, can you post here some code comparison
eg an ASM result from a simple routine?
Just to see how are performances of your compiler.
Keep in mind that many good C cross compilers are available for z80
and some of them have full msx support already.