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OpenVMS Hobbyist Program | Integrity Systems Forums | Integrity Software Forum
Author How mouch precise the implementation of OpenVMS for itanium processor?
kzsolt
Member

Posts: 14
Location: Budapest, Hungary
Joined: 08.10.09
Posted on March 14 2011 10:49
smiley How mouch precise the implementation of OpenVMS for itanium processor? I mean the bit field instruction called by C is very critical for our application. And implementing it on intel architecture is not an easy task. Exists some instruction emulation on C lib to do this task?

smiley Othersides anybody know why force HP the OpenVMS to guest of virtual machine instead of real hardware. Maybe the emulated hardware help to handle resources of computer?
Author RE: How mouch precise the implementation of OpenVMS for itanium processor?
imiller
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Posts: 277
Location: UK
Joined: 24.02.06
Posted on March 16 2011 01:23
I'm not sure what you are asking. The C compiler for OpenVMS I64 works just fine.

OpenVMS can run on real hardware (HP Integrity server, Alphaserver, VAX) or as a guest on HPVM - your choice.
http://www.encompasserve.org/~miller/
Author RE: How mouch precise the implementation of OpenVMS for itanium processor?
kzsolt
Member

Posts: 14
Location: Budapest, Hungary
Joined: 08.10.09
Posted on March 18 2011 03:03
Exchause me, sort explanation:

smiley The bit filed handling is very critical in every platform. Even if the code writed in C the C lib itself use mostly many of assembler "tricks" to handle bitfield. One of the VAX processsor advanatge was the precise bitfield support. If the VMS moved to Intel architecture more problem can occured here because the different processor register and instruction structure.

At practice you can image the file contain 1-32bit wide bitfields in mixed sequence.

smiley So my question was anybody have experience (good or bad) with bitfield on VMS/itanium platform?
Edited by kzsolt on March 18 2011 03:04
Author RE: How mouch precise the implementation of OpenVMS for itanium processor?
abrsvc
Member

Posts: 108
Joined: 12.03.10
Posted on March 18 2011 06:24
There are instruction sequences that are used to implement bit field operations such that the user(you) won't see the difference. What you are really asking is whether or not the same functions are available and the answer is yes. You should be able to take you C program and recompile and run it on the I64 platform without significant change. Without seeing the actual code, I cannot say no changes will be required, but for the most part, the code should work as is.

Dan
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malmberg
August 04 2022
No more VAX hobbyist licenses. Community licenses for Alpha/IA64/X86_64 VMS Software Inc. Commercial VMS software licenses for VAX available from HPE.

ozboomer
July 20 2022
Just re-visiting.. No more hobbyist licenses? Is that from vmssoftware.com, no 'community' licenses?

valdirfranco
July 01 2022
No more hobbyist license...sad

mister_wavey
February 12 2022
I recall that the disks failed on the public access VMS systems that included Fafner

parwezw
January 03 2022
Anyone know what happened to FAFNER.DYNDS.ORG? I had a hobbyist account here but can longer access the site.

gtackett
October 27 2021
Make that DECdfs _2.1A_ for Vax

gtackett
October 27 2021
I'm looking for DECdfs V2.4A kit for VAX. Asking here just in case anyone is still listening.

MarkRLV
September 17 2021
At one time, didn't this web site have a job board? I would love to use my legacy skills one last time in my career.

malmberg
January 18 2021
New Hobbyist PAKs for VAX/VMS are no longer available according to reports. Only commercial licenses are reported to be for sale from HPE

dfilip
January 16 2021
Can someone please point me to hobbyist license pak? I'm looking for VAX/VMS 7.1, DECnet Phase IV, and UCX/TCPIP ... have the 7.1 media, need the license paks ... thanks!

Bart
October 16 2020
OpenVMS, and this website!

malmberg
September 05 2020
VSI community non-commercial licenses for AXP/IA64 are available now.

malmberg
September 05 2020
See the forum about licensing. Don't know if HPE hobby licenses still being issued. Commercial licenses still being sold.

silfox70
September 01 2020
I need the license for OpenVMS7.3. Where can I find them?

malmberg
August 29 2020
Eisner, which is currently being moved, got an SSH update and the keys were updated to more modern encryption standards.

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