RE: ISAC: IRs to review and a question about IR 2031

Removing the statements in IR2031 about the units seems ok.

rgds,
Deepak 

-----Original Message-----
From: owner-isac@eda.org [mailto:owner-isac@eda.org] On Behalf Of Chuck
Swart
Sent: Wednesday, May 11, 2005 1:34 AM
To: isac@eda.org
Subject: ISAC: IRs to review and a question about IR 2031

I am attaching 6 updated IRs which I have not yet added to the ISAC data
base.
Please review them.
IR2020, 2031 and 2061 have rewording which you might want to improve.

IR2029, 2044 and 2059 are very straightforward.

Note that Peter updated IR2053 during the ballot phase.

If I don't receive any suggestions in the next couple of days, I'll put
them into the database.

I have a question about IR2031: "mod" function needed for TIME

The IR states:

      The units of the result of a mod operation are left to the
      implementation as long as the result satisfies the above
      relation.

and  
      The units of the result of a mod operation are left to the
      implementation as long as the result satisfies the above
      relation.

My question is: Are these statements really necessary?
We don't make any statements about other expressions involving time,
such as 5ns + 2ps. Why do we need to say anything in the LRM about units
for 5ns mod 2ps?
Technically, all these values are computed using either the primary unit
(fs) or using the resolution limit,
so why do we need to say anything more?


Chuck Swart