In A Reg To Reg Path If You Have Setup Problem Where Will You Insert

1.	In A Reg To Reg Path If You Have Setup Problem Where Will You Insert Buffer-near To Launching Flop Or Capture Flop? Why?
Answer» (buffers are inserted for fixing fanout voilations and hence they reduce setup voilation; otherwise we try to fix setup voilation with the sizing of cells; now just assume that you must insert buffer !) Near to CAPTURE path. Because there may be other paths passing through or ORIGINATING from the flop NEARER to lauch flop. Hence buffer insertion may affect other paths also. It may improve all those paths or degarde. If all those paths have voilation then you may insert buffer nearer to launch flop provided it improves slack.

In A Reg To Reg Path If You Have Setup Problem Where Will You Insert Buffer-near To Launching Flop Or Capture Flop? Why?

Answer»

(buffers are inserted for fixing fanout voilations and hence they reduce setup voilation; otherwise we try to fix setup voilation with the sizing of cells; now just assume that you must insert buffer !)
Near to CAPTURE path.
Because there may be other paths passing through or ORIGINATING from the flop NEARER to lauch flop. Hence buffer insertion may affect other paths also. It may improve all those paths or degarde. If all those paths have voilation then you may insert buffer nearer to launch flop provided it improves slack.