[sv-cc] Draft 5 Changes Review Request: Part-Select


Subject: [sv-cc] Draft 5 Changes Review Request: Part-Select
From: Duncan, Ralph (ralph_duncan@mentorg.com)
Date: Wed Feb 25 2004 - 10:30:02 PST


Swapnajit,

We propose a change to the LRM sections pertaining to
part-select operations on packed 2 and 4-state vectors.

This change:
. appears in C code comment text for file SVDPI.H
. appears in both LRM Sections: E.10.3.2 and F.1.

The change consists of adding the following comment text:

"In part select operations, the data is copied to or from the
canonical representation part ('chunk') designated by range [w-1:0]
and the implementation representation part designated by range [w+i-1:i]."

The entire comment section would now appear as shown below.
 
   /*
    * functions for part select
    *
    * a narrow (<=32 bits) part select is copied between
    * the implementation representation and a single chunk of
    * canonical representation
    * Normalized ranges and indexing [n-1:0] are used for both arrays:
    * the array in the implementation representation and the canonical
array.
    *
    * s=source, d=destination, i=starting bit index, w=width
    * like for variable part selects; limitations: w <= 32.
    * In part select operations, the data is copied to or from the
    * canonical representation part ('chunk') designated by range [w-1:0]
    * and the implementation representation part designated by range
[w+i-1:i].
    */

In accord with your earlier email, please forward this request to
the "LRM editors" at your convenience.

Ralph Duncan
Mentor Graphics



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