Verilog-AMS doesn't provide a way to access ac quantities: frequency, the ac current/voltage, etc. So, I'm not sure what expression you imagine could cross zero. Some simulators do allow you to do a single-frequency ac analysis with a swept operating point; I would expect that to be treated like a dc sweep for the purposes of @above. -Geoffrey Paul Floyd wrote: > Jonathan David wrote: > >> @above should be 1 or zero in any dc, op, ic, (static) simulation. 1 >> if above is true , 0 if not. The point of @above is that it must work >> in these situations where @cross is undefined. >> >> > I appreciate that. My question mainly concerns ac rather than ic. Should > that be considered like dc sweep or not? ac has some similarities with > dc sweep (a fixed number of static calculations), and I can imagine the > expression crossing zero from below at some point. > > Regards > Paul Floyd -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.Received on Wed Nov 18 09:56:07 2009
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