Thread: [OpenSTA-devel] Charlie J Hewett's document on SCL
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From: Ash A. <as...@gm...> - 2005-06-07 08:17:26
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Hi list, Has anyone got a copy of the documents by Charlie mentioned in the below th= read? http://sourceforge.net/mailarchive/forum.php?thread_id=3D1094644&forum_id= =3D4764 If so please send them to me. Thanks. Ashok Srivastava |
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From: Thierry B. <thi...@ke...> - 2005-06-07 08:34:53
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Ash Ashbhai wrote: >Hi list, >Has anyone got a copy of the documents by Charlie mentioned in the below thread? >http://sourceforge.net/mailarchive/forum.php?thread_id=1094644&forum_id=4764 >If so please send them to me. >Thanks. >Ashok Srivastava > > Hi, The last post of Charlie contains the instructions for adding an integer function to SCL (NEG_EXP_DIST_FUNC) : http://sourceforge.net/mailarchive/message.php?msg_id=11783362 (RE: Duration of the viewstate encoding - 2005-05-17) Thierry Thierry Boullet www.kereval.com |
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From: Ash A. <as...@gm...> - 2005-06-07 11:33:52
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Thanks. I missed that thread. Can you please point me in the right direction on where can I get more documentation on using tpg.exe? Like how to write subexpressions... Ashok On 6/7/05, Thierry Boullet <thi...@ke...> wrote: > Ash Ashbhai wrote: >=20 > >Hi list, > >Has anyone got a copy of the documents by Charlie mentioned in the below= thread? > >http://sourceforge.net/mailarchive/forum.php?thread_id=3D1094644&forum_i= d=3D4764 > >If so please send them to me. > >Thanks. > >Ashok Srivastava > > > > > Hi, >=20 > The last post of Charlie contains the instructions for adding an integer > function to SCL (NEG_EXP_DIST_FUNC) : > http://sourceforge.net/mailarchive/message.php?msg_id=3D11783362 (RE: > Duration of the viewstate encoding - 2005-05-17) >=20 > Thierry >=20 > Thierry Boullet > www.kereval.com >=20 >=20 >=20 > ------------------------------------------------------- > This SF.Net email is sponsored by: NEC IT Guy Games. How far can you sho= tput > a projector? How fast can you ride your desk chair down the office luge t= rack? > If you want to score the big prize, get to know the little guy. > Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=3D20 > _______________________________________________ > OpenSTA-devel mailing list > Ope...@li... > https://lists.sourceforge.net/lists/listinfo/opensta-devel > |
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From: Daniel S. <da...@Op...> - 2005-06-09 15:21:46
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Ash Ashbhai wrote: > > > Has anyone got a copy of the documents by Charlie mentioned in > > > the below thread? > > > http://sourceforge.net/mailarchive/forum.php?thread_id=1094644&forum_id=4764 This email mentions a zip file containing 3 docs - I've searched through my archives and can only find a zip file containing 1 Word document ... this contains instructions on adding a bitwise OR (%) operator and the ~NEG_EXP_DIST() function ... Thierry Boullet wrote: > > The last post of Charlie contains the instructions for adding an integer > > function to SCL (NEG_EXP_DIST_FUNC): > > http://sourceforge.net/mailarchive/message.php?msg_id=11783362 > > (RE: Duration of the viewstate encoding - 2005-05-17) > > Thanks. I missed that thread. The instructions given in this email are the same as the latter half of the document I have... Interestingly enough ~NEG_EXP_DIST is implemented in the current OpenSTA - but there is no mention of it in the documentation! Here's what the comments in the code say: ; The NEG_EXP_DIST function has the following format: ; ~NEG_EXP_DIST(random, mean) ; where 'random' and 'mean' are integer operands. The ; function returns an INTEGER value. Here's the bit that does the actual work: //Calculation of negative exponential distribution // make value range from {(1/2147493647):1} temp = (double)nedrand / 2147483647.0; // (2^31) - 1 is the max value (range 1-2147483647) int reslt = (int)(-(log(temp) * nedmean)); // scaling factor set to 1000 (to keep higher resolution on result) I'm not sure what specific use this has but maybe it is useful to someone out there... Maybe if Charlie has the time he can fill us in. I'll document it for the next release of the SCL Reference. The bitwise OR operator that Charlie documented implenting looks like it was included into the source very differently. There are a bitwise XOR(^) and IOR(|), and the % was given to the modulo operator. I'm going to drop both of these into the Wiki so we can find them easier and add to them as we work out more about this area. I'll reply with a link once I've done this. > Can you please point me in the right direction on where can I get > more documentation on using tpg.exe? Like how to write > subexpressions... ROTFL :-) Richard Clarke was the only one of the team that really knew his way around the legacy code that was used for the SCL parsing - and he seems to be "missing". What I do know is that the parsing mechanism is derived from the OpenVMS TPARSE routines - so maybe looking for some online VMS TPARSE documentation may help. There will be actual TPG documentation somewhere (from the Performance Software days) but even if I had this documentation (which I don't) the chances are that I wouldn't legally be able to make this available... The other possibility is that if Malcolm Green is listening in here, and is feeling generous :-) He could perhaps provide us some clues as to where to look for information and how different the PSL TPG is from the original OpenVMS equivalent... please. Other than that, it really is a matter of working it out for ourselves... if we work together and document as we go then that shouldn't be too difficult, the TPA files seem very well commented. Ash: may I ask what you'd like to add to SCL? And make sure that you are willing to donate your work back to the product... ? If you aren't willing to give back to the community then it is difficult to justify spending too much time helping you (or anyone) out. :-) Hope this info helps, Cheers /dan -- Daniel Sutcliffe <Da...@Op...> OpenSTA part-time caretaker - http://OpenSTA.org/ |
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