H-Series Application Migration Guide (H06.03+)

The TNS/E Native Development Environment

H-Series Application Migration Guide—429855-006

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TNS/E pTAL Compiler

H-series systems provide a pTAL compiler that is nearly identical to the pTAL compiler

on G-series systems, except that it produces object files consisting of Itanium

instructions instead of RISC instructions. It has a new command name: EPTAL. The

command line syntax is similar.

The TNS/E pTAL compiler can be run in the Guardian environment and on the PC

either at the Windows command prompt or as part of ETK. (TDS is not supported on

H-series systems.) ETK enables you to compile and link programs on a PC. You can

compile programs targeted for the TNS/R or TNS/E system, then copy the object files

to a NonStop server and execute them in the Guardian environment.

Migrating a TNS/R pTAL program to TNS/E pTAL, in most cases, requires no source

code changes. Some programs might require minor source code changes as described

in Section 7, pTAL Migration Tasks.

TNS/E Native C Compiler

The H-series native C compiler is nearly identical to the G-series native C compiler,

except that it produces object files consisting of Itanium instructions instead of RISC

instructions.

Like the TNS/R native C compiler, the TNS/E native C compiler accepts C language

source files that comply with either the ISO/ANSI C Standard or Common Use C

(sometimes called Kernighan and Ritchie C or K&R C). The TNS/E native C compiler

also accepts HP language extensions.

The TNS/E native C compiler can be run in the Guardian and OSS environments and

on the PC either at the Windows command prompt or as part of ETK. (TDS is not

supported on H-series systems.) The CCOMP command runs the compiler in the

Guardian environment. The TNS/E native C compiler command line syntax is similar to

that of the TNS and TNS/R C compilers. The syntax of the TNS/E c89 utility, which runs

the TNS/E native C compiler in the OSS environment, is similar to that of the TNS and

TNS/R c89 utility.

ETK provides cross compilers that enable you to compile and link programs on a PC

under the Windows operating system for execution on the NonStop server. You can

compile programs targeted for either the TNS/R or TNS/E system, copy the object files

to the appropriate NonStop server, and execute them in the Guardian and OSS

environments.

Most TNS/R native C programs can be compiled and run on an H-series system with

no source changes. Some programs might require minor changes as described in

Section 5, Native C and C++ Migration Tasks.