Migrating an Application from OpenVMS VAX to OpenVMS Alpha

• TESTBITCCI instruction
  • accessing from DEC C
• TESTBITSSI instruction
  • accessing from DEC C
• Text libraries
  • portability
• Third-party products
  • migrating
• Threaded code
• Threads of execution
  • effect on synchronization #1
  • effect on synchronization #2
• TIE$EMULAT_TV.EXE image
• /TIE qualifier
  • compiler interoperability qualifier
  • DEC COBOL support for
  • DEC Fortran for OpenVMS Alpha support
• TIE$SHARE shareable image
• TIE (Translated Image Environment) #1
• TIE (Translated Image Environment) #2
• TIE (Translated Image Environment) #3
• TIE (Translated Image Environment) #4
  • access violation workaround
  • description
  • interoperability between native and translated images
  • invoked automatically
  • restrictions
  • running translated images
  • statistics and feedback
  • system logical names
  • using /TIE qualifier to enable autojacketing
• Translated Image Environment
  • See TIE
• Translated image support #1
• Translated image support #2
  • additional qualifier required for FORTRAN
  • need for additional steps
  • See also TIE
• Translated images
  • contents
  • creating
  • debugging
  • description
  • enabling callbacks to
  • library routine calls
  • performance of #1
  • performance of #2
  • preserving atomicity in
  • system service calls
  • using in a link operation
• Translated VAX C Run-Time Library
  • functional restrictions
  • interoperability restrictions
• Translated VAX COBOL programs support
• Translating #1
• Translating #2
  • as a stage in migration
  • comparison with recompiling #1
  • comparison with recompiling #2
  • effect of architectural dependencies
  • for compatibility #1
  • for compatibility #2
  • performance of translated image
  • programs in languages with no Alpha compiler
  • restrictions
  • See also VEST
  • tools for
  • type of image produced
• Translation
  • BASIC images
  • BLAS$
  • callers to CRF$FREE_VM or CRF$GET_VM
  • executable files
  • images
  • MTHRTL
  • run-time libraries
• TRAPB instruction
  • accessing in DEC C

• $ULKPAG system service
  • page-size dependencies
• $ULWSET system service
  • page-size dependencies
• Unaligned data
  • cause of reduced performance
  • in dynamic structures
  • reduced performance
  • supported under translation
• Unaligned variables
• Uninitialized variables
• Unreachable code
• Unwinding in exception handlers
• $UPDSEC system service
  • page-size dependencies
• User-mode images
  • slicing
• User-written device drivers
  • on OpenVMS Alpha systems
• Using the /STANDARD=OPENVMS_AXP qualifier option
  • with VAX COBOL programs

• Variables
  • shared
    • atomicity of
  • unaligned
  • uninitialized
• VAX Ada
  • See DEC Ada
• VAX architecture
  • dependencies
  • general description
  • register set differences
• VAX C
  • See DEC C
• VAX calling standard
  • reliance on
• VAX COBOL
  • command line qualifiers
    • more information
    • new
    • new (tab.)
  • current product information
    • location of
  • features unsupported by DEC COBOL
• VAX dependency checklist
• VAX Environment Software Translator
  • See VEST #1
  • See VEST #2
• VAX FORTRAN
  • See DEC Fortran for OpenVMS VAX Systems
• VAX instructions
  • accessing from DEC C
  • CALLx
  • generating at run time #1
  • generating at run time #2
  • generating at run time #3
  • interlocked instructions
    • supported by DEC C
  • interpreting
  • JSB #1
  • JSB #2
  • modifying
  • privileged instructions
  • reduced performance
  • reliance on behavior of
    • cause of reduced performance
  • supported in PALcode
  • vector instructions
• VAX MACRO
  • as compiled language
  • LIB$ESTABLISH routine
  • only a migration aid
  • recompiling on OpenVMS Alpha systems
  • replaced by system services
• VAX MACRO-32 compiler
  • only a migration aid
• VAX Pascal
  • See DEC Pascal
• VAX SCAN compiler
• VAXCDEF.TLB
  • replaced by new files
• Vector instructions
• Version 2.3---What's New_>RMS special registers
• VEST/DEPENDENCY analysis tool #1
• VEST/DEPENDENCY analysis tool #2
• VEST (VAX Environment Software Translator) #1
• VEST (VAX Environment Software Translator) #2
• VEST (VAX Environment Software Translator) #3
• VEST (VAX Environment Software Translator) #4
  • analytical ability
  • and page size
  • as analysis tool
    • restrictions
  • capabilities
  • creating stub images
  • /FLOAT=D53_FLOAT qualifier
  • /FLOAT=D56_FLOAT qualifier #1
  • /FLOAT=D56_FLOAT qualifier #2
  • generating VAX instructions
  • interoperability
  • /OPTIMIZE=ALIGNMENT qualifier #1
  • /OPTIMIZE=ALIGNMENT qualifier #2
  • /OPTIMIZE=NOALIGNMENT qualifier
  • /PRESERVE=FLOAT_EXCEPTIONS qualifier #1
  • /PRESERVE=FLOAT_EXCEPTIONS qualifier #2
• VEST (VAX Environment Software Translator)
  • /PRESERVE=INSTRUCTION_ATOMICITY qualifier
• VEST (VAX Environment Software Translator)
  • /PRESERVE=INSTRUCTION_ATOMICITY qualifier
  • /PRESERVE=INTEGER_EXCEPTIONS qualifier #1
  • /PRESERVE=INTEGER_EXCEPTIONS qualifier #2
  • /PRESERVE=MEMORY_ATOMICITY qualifier
  • /PRESERVE=MEMORY_ATOMICITY qualifier
  • /PRESERVE qualifier #1
  • /PRESERVE qualifier #2
  • /PRESERVE=READ_WRITE_ORDERING qualifier
  • resources required
  • runs on VAX and Alpha systems
  • See also DECmigrate, TIE, and Translated image support
  • using symbol information files (SIF)
• /VFC qualifier
• VFU CHANNEL printing
• Virtual addresses
  • manipulating
• Volatile attribute
  • protecting shared data #1
  • protecting shared data #2
  • supported by DEC C

• Working set
  • modifying
• Writable global sections
• WRITE statement
  • with LINAGE statement
• Writing programs
  • compatibility and portability with VAX COBOL

• __ADD_ATOMIC_LONG built-in
• __ADD_ATOMIC_QUAD built-in
• __AND_ATOMIC_LONG built-in
• __AND_ATOMIC_QUAD built-in
• __OR_ATOMIC_LONG built-in
• __OR_ATOMIC_QUAD built-in

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  6459PI03.HTM
  OSSG Documentation
  22-NOV-1996 13:07:33.19

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