On 18 March 2010 14:57, Paul Gilmartin <paulgboul...@aim.com> wrote: > On Thu, 18 Mar 2010 11:20:38 -0700, Natarajan Mohan wrote: >> >>You would have to login to yahoo groups for hercules-390 @ >>http://groups.yahoo.com/group/hercules-390 and go to files. You will find >>terse.zip file containing executables for windows/dos/mac/linux etc. >> > Both terse and unterse?
Yes. (For the record, I had nothing to do with putting that file there. There have been both terse implementations, and references to others out there on the net for some years, and someone appears to have bundled them together.) > Ummm. Doesn't terse reflect a lot of information from the DSCB? > How does that play on a non-z?OS platform? I've spent some time looking at the data stream generated by various implementations of the terse algorithm, since the only public documentation seems to be in the now-expired US patent covering the algorithm. There are two different compression schemes (known as PACK and SPACK in the MVS version), and several different encoding schemes. There is some overlap in which of these a given implementation supports, so if you use compatible options you can interchange data. For example, the terse datastream is capable of maintaining record boundaries for MVS datasets, and a compatible non z/OS version can turn those record endings into line-end sequences for the target platform. Obviously that doesn't do magic like making a z/OS load module or PDS meaningful on Windows. > For that matter, can terse be used for interchange between > z/OS and z/VM? PDS[E] <--> SFS directory? I don't know if there is support for SFS in any terse version. For that matter, I'm not sure there is a supported terse for VM at all; it may be that there is only a deterse. Or I may have it backwards, and there is only a terse. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
