Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
HP.com home

HP OpenVMS Systems

Ask the Wizard
» 

HP OpenVMS Systems

OpenVMS information
» What's new on our site
» Upcoming events
» Configuration and buying assistance
» Send us your comments

HP OpenVMS systems
» OpenVMS software
» Supported Servers
» OpenVMS virtualization
» OpenVMS solutions and partners
» OpenVMS success stories
» OpenVMS service and support
» OpenVMS resources and information
» OpenVMS documentation
» Education and training

Quick Links
» Non-javascript page
» Ask the Wizard
» OpenVMS FAQ

Test Drive OpenVMS
» OpenVMS I64 test drive
» Java test drive

Other information resources available to you include:
» OpenVMS freeware
» ECO kits, software and hardware support, prior version support
» Alpha SRM, ARC, and AlphaBIOS firmware updates
» ENCOMPASS - HP user group
» OpenVMS software downloads, OpenVMS freeware CD-ROM
» OpenVMS firmware locations
» DECconnect passive adaptor charts
» Cables reference guide
» MicroVAX console commands
» OpenVMS student research

Select a topic below to see Questions Frequently Asked by partners
» Using the online documentation library(installing BNU from the asap SDK)
» Global sections(how to create and use.)
» xx$CREATE_BUFOBJ system service(usage)
» Ethernet address(methods of determination)
» Shareable images(cookbook approach to creating one)
» Sharing data/code at absolute addresses(a guide with examples)
» Determining the Alpha microprocessor
» Using GETSYI to get hardware status

Evolving business value
» Business Systems Evolution
» AlphaServer systems transition planning
» Alpha RetainTrust program

Related links
» HP Integrity servers
» HP Alpha systems
» HP storage
» HP software
» HP products and services
» HP solutions
» HP support
disaster proof
HP Integrity server animation
HP Integrity server animation
Content starts here

Ask the Wizard Questions

BASIC Language: Upward compatibility

The Question is: 


I need to be able to run BASIC programs compiled under
VMS v5.x to run under v6.x without having to re-compile.
Is this possible?

I am running a MicroVAX 3196 and VMS v5.5-2H4 and want
to upgrade to VMS v6.x.  We have a HUGE amount of BASIC
programs that work just fine at our current version.  My
question is will they run as is under VMS v6.x?  Some have
told me, "Just do a re-compile and you will have no
problems."  I don't debate that.  They will probably run
just fine if re-compiled.  It's just that there are
TONS of programs that would need re-compiling, and this
could possibly prevent us from upgrading.

Oh, one more thing:  Many of these programs were moved
from a VMS v4.x environment, and they run just fine under
v5.x.  The balance were compiled under v5.x.

The Answer is: 

    They should run fine without recompiling or relinking.  VMS provides
    upward compatibility for linked images that don't use privileged or
    undocumented interfaces.

 
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 2012 Hewlett-Packard Development Company, L.P.