Sio & Puc memory mapped

[Roman Kurakin]

Hi,

    Does any body workin on support for memory mapped serial adapters?
As I understand puc (4) allows to add support for such card, but sio (4) 
cant
serve them any way.
    If nobody doesn't, why so? If no one of developers bother, does anybody
wants this support?

Best regards,
                      Roman Kurakin