Re: i/o speed (was: pipes & ptys)

[shenson@nyx.cs.du.edu (Stephen Henson)]

Well unless things have changed a lot since I last looked at the bios ...
the MFP does use the transmitter buffer empty interrupt to read from a
circular buffer. The midi port however uses polling for transmit, but buffers
receive (which is academic with the brain dead code which loses characters).
	MiNT as has been pointed out use the internal Bconxx garbage which is
single character stuff. You can't really read from the buffers directly unless
you either :
(a) have no flow control at all.
(b) rewrite all the interrupts and buffer code.
(a) could be used for fast I/O as a special case and is easy to do. However
for long term (b) is the only option.
Steve.
PS has anyone any idea if/how to do fast I/O on the ST from PC<->ST ? I really
could do with something which is much quicker than MIDI/RS232.