Question about porting target.

[gaspard]

Hi everyone,

I have a question,  does a guide or documentation exist  to porting new 
target to qemu ?
I have found in the list a very old topic about that , but it's  not 
very clear.

What files into target folder in the source  I need to modify ?
Because I can't find any guide or documentation .

Thanks in advance !

Gaspard C