The "Axis of Evil Gate", the "Let's Roll" gate, the "Security Search"
gate.
I suppose you could brew up a gate that would do all kinds of transforms
on an input, according to a stored waveform. It might look a lot like a
Mini Wave.
But if you need more than one logic input, you would have to use the
wave select input and code the EPROM with that in consideration. Grant's
new Socket Rocket has a window comparator already in place.
___________________
John Blacet
Blacet Research
http://www.blacet.com