[Coco] Simple, reliable routines for the bitbanger serial port?

[John W. Linville]

Anyone have a set of simple (and tested) routines to do
one-character-at-a-time transfers through the CoCo's bitbanger port?
I don't need high performance, although 9600bps might be nice.
I'd prefer routines that only used hard-coded timing loops (i.e. not
interrupts) just for simplicity sake, but any working code is welcome.

Can anyone help?

Thanks!

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.