I have a vague recollection that this was specified in one of the proposals, but I don't remember which. Shalom > -----Original Message----- > From: owner-sv-ac@server.eda.org > [mailto:owner-sv-ac@server.eda.org] On Behalf Of John Havlicek > Sent: Wednesday, March 12, 2008 11:54 AM > To: piper@cadence.com > Cc: sv-ac@server.eda.org > Subject: Re: [sv-ac] $past question > > Hi Lisa: > > My understanding has been that number_of_ticks is required to > be a compile-time constant. I don't see this specified in Draft 4. > > J.H. > > > X-eda.org-MailScanner-Watermark: > > 1205873043.39214@PsqPuPKNQzi21/PzBMxjFA > > X-Authentication-Warning: server.eda.org: majordom set sender to > > owner-sv-ac@eda.org using -f > > X-eda.org-MailScanner-Watermark: > > 1205872967.19742@Me7stFMVwFNYEfAFfe4Wyg > > X-MimeOLE: Produced By Microsoft Exchange V6.5 > > Content-class: urn:content-classes:message > > Date: Tue, 11 Mar 2008 16:42:45 -0400 > > X-MS-Has-Attach: > > X-MS-TNEF-Correlator: > > Thread-Topic: $past question > > Thread-Index: AciDuHXtaq1dlUJQR7GK5j1/BlA4SQ== > > From: "Lisa Piper" <piper@cadence.com> > > X-Received: By mx-sanjose2.Cadence.COM as m2BKgj3M026962 at > Tue Mar 11 > > 13:42:45 2008 > > X-eda.org-MailScanner: Found to be clean, Found to be clean > > X-Spam-Status: No, No > > Sender: owner-sv-ac@eda.org > > X-eda.org-MailScanner-Information: Please contact the ISP for more > > information > > X-MailScanner-ID: m2BKhXX5000346 > > X-eda.org-MailScanner-From: owner-sv-ac@server.eda.org > > X-OriginalArrivalTime: 11 Mar 2008 20:48:12.0678 (UTC) > > FILETIME=[38E50260:01C883B9] > > > > This is a multi-part message in MIME format. > > > > ------_=_NextPart_001_01C883B8.74469B2C > > Content-Type: text/plain; > > charset="us-ascii" > > Content-Transfer-Encoding: quoted-printable > > > > In the syntax for $past, > > > > $past( expression1 [, number_of_ticks] [, expression2] [, > > clocking_event]) > > > > Is "number_of_ticks" required to be static or can it be > variable? PSL > > requires that it is static, which allows performance > optimizations. I > > don't see this in the SVA LRM even after Mantis 1698. I'm > not sure if > > it is an oversight or if people really want to allow > variable numbers. > > And if it is variable, is there an upper limit? > > > > Lisa > > > > --=20 > > This message has been scanned for viruses and dangerous content by > > MailScanner, and is believed to be clean. > > > > > > ------_=_NextPart_001_01C883B8.74469B2C > > Content-Type: text/html; > > charset="us-ascii" > > Content-Transfer-Encoding: quoted-printable > > > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> > <HEAD> <META > > HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; > charset=3Dus-ascii"> > > <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version > > 6.5.7652.24"> <TITLE>$past question</TITLE> </HEAD> <BODY> > > <!-- Converted from text/rtf format --> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT FACE=3D"Arial">In > the</FONT> > > <FONT = FACE=3D"Arial">syntax for $past,</FONT></SPAN></P> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial"> &n= > > bsp; </FONT></SPAN><SPAN > > LANG=3D"en-us"> = <FONT FACE=3D"Arial"></FONT></SPAN><SPAN > > LANG=3D"en-us"></SPAN><SPAN LANG= =3D"en-us"> <FONT SIZE=3D2 > > FACE=3D"Courier New">$past( expression1 [, numbe= r_of_ticks] [, > > expression2] [, clocking_event])</FONT></SPAN></P> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"></SPAN><SPAN > > LANG=3D"en-us"></SPAN></P> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT > FACE=3D"Arial">I</FONT><FONT > > FACE= =3D"Arial">s</FONT></SPAN><SPAN LANG=3D"en-us"> <FONT > > FACE=3D"Arial">“= ;</FONT></SPAN><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial">number_of_ticks</F= > > ONT></SPAN><SPAN LANG=3D"en-us"><FONT > > ONT>FACE=3D"Arial">”</FONT></SPAN><= > > SPAN LANG=3D"en-us"><FONT FACE=3D"Arial"> required to be > static or can > > it b= e variable?</FONT></SPAN><SPAN LANG=3D"en-us"> <FONT > > FACE=3D"Arial"></= > > FONT></SPAN><SPAN LANG=3D"en-us"> <FONT FACE=3D"Arial">PSL requires > > FONT>that it= > > is static</FONT></SPAN><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial">,</FONT><= /SPAN><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial"> which allows performance o= ptim</FONT><FONT > > FACE=3D"Arial">izations. I</FONT><FONT FACE=3D"Arial= "> > > don</FONT></SPAN><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial">’</FONT= > > ></SPAN><SPAN LANG=3D"en-us"><FONT FACE=3D"Arial">t see this in the > > >SVA LRM= > > </FONT></SPAN><SPAN LANG=3D"en-us"><FONT FACE=3D"Arial"> even after > > Mantis = 1698</FONT></SPAN><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial">. I</FONT= > > ></SPAN><SPAN LANG=3D"en-us"><FONT > > >FACE=3D"Arial">’</FONT></SPAN><SPA= > > N LANG=3D"en-us"><FONT FACE=3D"Arial">m not sure if it is > an oversight > > or i= f people really want to allow variable numbers.</FONT> <FONT > > FACE=3D"Arial"= > > > </FONT> <FONT FACE=3D"Arial">And if it is variable, > is there an > > >uppe= > > r limit?</FONT></SPAN><SPAN LANG=3D"en-us"></SPAN></P> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"></SPAN></P> > > > > <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT > > FACE=3D"Arial">Lisa</FONT></SPAN><S= > > PAN LANG=3D"en-us"></SPAN></P> > > > > </BODY> > > <br />--=20 > > <br />This message has been scanned for viruses and <br />dangerous > > content by <a > > > href=3D"http://www.mailscanner.info/"><b>MailScanner</b></a>, and is > > <br />believed to be clean. > > </HTML> > > > > ------_=_NextPart_001_01C883B8.74469B2C-- > > -- > This message has been scanned for viruses and dangerous > content by MailScanner, and is believed to be clean. > > --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.Received on Wed Mar 12 03:04:35 2008
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