Enumarating false paths using primetime based on -justify command

[ifforums]

Hi,

I am trying to enumerate all false paths of the circuit using PrimeTime. I tried -true -false and -justify switches but it seems that these options have been made obsolete since the 2011.12 release of PrimeTime and are no longer supported. I am wondering whats the new commands?

Thanks

 

[rca]

well, in small design, this argument requires so many time that it is impossible to have a result.
in big design it is unusable.

in all case, the false-path should be added if the timing could not be reach. I means if the timing is fix without any constraint, that's better for the run-time of the backend flow, avoid any constraints if not required!