With so many involved in FreeRTOS, does there exist an application to verify correct functioning of a port ?  The same idea as regression testing. I see a version 3 eZ80 port contribution that I’d like to bring to ver 7.

I did find this comment.  From richard
https://sourceforge.net/projects/freertos/forums/forum/382005/topic/5375606
about testing strategies.  As I hadn’t thought too deeply about it before, it seems most of the port verification is too processor specific to be generalized.  I plan to follow that advice and not worry about the common code at this point.