Hi Matthias,
Does REFILL load a single line?
In a multiline colon definition is it called for each line?
If so I think the best place to handle XON/XOFF is QUIT itself.
At the begin of the loop after calling REFILL assert XOFF and before closing 
the loop assert XON.
That way transmission is blocked while the interpreter is working including the 
case of an error answer (xxx ?? -nn nn) and, on the other side, I will receive 
an XON at the end of each answer.

Paolo 

Inviato da Samsung Mobilenull
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