I originally posted this on the gnupic list but have
never gotten any answers recently so I will try, here. For
several reasons, gpsim is what I must use now and it is mostly
working as it was designed to do. I don't know if the problem I
have is due to me using the wrong syntax or if this particular
feature does not work in which case, I can stop wasting time and
work around it.

	I have a stimulus file. It produces a square wave and is
showing the correct pattern. I have a node which is RB0 and RA4
tied together and tone-a, the name of the stimulus is tied to
both those pins.

	Shouldn't the voltage show up on both those pins or, if
one is configured as an output by accident, shouldn't the
voltage drop to near 0?

	Here is what I get:

**gpsim> node
 Node Table: __global__
PORTA4 voltage =3D 0V
PORTB0 voltage =3D 0V
testnode voltage =3D 5V
        tone-a
 Node Table: p16f628

	I know I have done something wrong setting up the node
but am not sure what it could be:

node testnode PORTA4 PORTB0
attach testnode tone-a

	When I run it, testnode delivers the pulsating square
wave and the virtual pins never see it.

	Any ideas?

	The program is looking for RB0 to go high and then low
which will trigger an interrupt. This interrupt also does not
happen which further confirms that the virtual PIC is not seeing
the stimulus.

	Thank you.
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