Re: OS/390 service discontinued 2004/09/30

On 03/23/2015 06:11 PM, Ray Mullins wrote:
> What would it take to have documentation, etc., updated to reflect the
> current name of z/OS?

Most of the documentation doesn't mention os390.  z/OS is not a 
syntactically legal identifier name, so some things need to remain using 
os390.  But it should be fairly easy to change most of things to z/OS. 
Do you have places you see where there should be changes?
>
> Also, even though there are no longer any users, what is the BS2000/OSD
> status? It is also EBCDIC.

We generate tables for it, so theoretically it should be quite easy to 
get this to work.  If there are no users, can we stop generating tables 
for it?

The only other EBCDIC platforms still
> outstanding are the Unisys OS2200 operating system and IBM's System i
> (formerly known as AS/400). I'm pretty sure that Perl was never ported
> to AS/400,

It indeed was purportedly ported to AS/400, and we generate tables for 
CP 037.  So again, it should be "easy" to get it to work on this.  Do 
you know of anyone who has access to one, and wants modern Perl on it?

  and I believe it was also never ported to OS2000.

The only EBCDIC tables we generate are for CP 1047, 037, and what was 
called POSIX BC (for the Siemens).  It should now be trivial to generate 
tables for any other code page.  There however may be glitches that show up.

One thing that I discovered, and have not committed documentation for is 
that the official Unicode UTF-EBCDIC is flawed for any other code page 
besides 1047, wrt Perl anyway.  The reason is that Perl expects the 
characters that have ASCII equivalents to be the same whether encoded in 
UTF-EBCDIC or not, and official UTF-EBCDIC is that way only for 1047. 
This caused segfaults on other computers; it doesn't appear from the 
trouble tickets that people really fully understood the causes and 
implications of this.  In 5.22, perl will use a variant of UTF-EBCDIC 
customized for the code page for the system, should there be any system 
other than z/OS.  To cite an example, Perl wants a '[' character to have 
the same single-byte representation when it sees it in a UTF-EBCDIC 
string or just a regular EBCDIC string.

(Unisys MCP
> is ASCII.)
>
> On 2015-03-23 12:22, Karl Nordstrom wrote:
>> /http://www-03.ibm.com/systems/z/os/zos/support/zos_eos_dates.html/
>> /
>> /
>> /OS/390 V2/
>> Program
>> number     VRM     Announced     Available     Marketing
>> withdrawn     Service discontinued
>> 5647-A01     2.10.0     2000/05/16     2000/09/29 2002/12/17 2004/09/30
>> 5647-A01     2.09.0     2000/02/29     2000/03/31 2000/09/14 2003/03/31
>> 5647-A01     2.08.0     1999/02/22     1999/09/24 2000/03/16 2002/09/30
>> 5647-A01     2.07.0     1998/08/18     1999/03/26 1999/09/09 2002/03/31
>> 5647-A01     2.06.0     1998/02/24     1998/09/25 2000/06/15 2002/03/31
>> 5647-A01     2.05.0     1997/09/09     1998/03/27 1998/09/03 2001/03/31
>> 5647-A01     2.04.0     1997/09/09     1997/09/26 1998/03/12 2001/03/31
>>
>>
>>
>
>