( ESNUG 218 Item 3 ) ---------------------------------------------- [5/19/95]
Subject: (ESNUG 216 #1 217 #1) Buffer Insertion Script From SNUG '95
>>buf.ss ... This dc_shell script adds buffers to an input port. By
>>multiple calls you can build a balanced buffer tree, with complete
>>control over the type and number of buffers at each level.
>
>That is the most ridiculous thing I have practically ever seen. I'll bet
>you could have done it by hand and gotten it right many, many, times,
>before figuring this out! Just because something is automated doesn't
>make it better, or even good.
From: vvallet@vnet.ibm.com (Vincent Vallet)
I myself had to write a ridiculous dc_shell script once to find a port
driven by a **logic_0** or a **logic_1**, and insert a buffer between the
**logic_something** and the port. (That way the schematic can be imported
to Cadence Composer. Otherwise Cadence Composer doesn't allow you to
drive an output port with a common signal. That limitation is also one
of the most ridiculous thing I have seen...)
Yes, if you do not need a script, they appear ridiculous. But, if you
are in a situation where you need them, they're lifesavers.
- Vincent Vallet
IBM France
|
|
