Compiler and Library for REXX on zSeries

IBM® Compiler and Library for REXX™ on zSeries® are a high-level language compiler and runtime library.

This combination of compiler and library facilitates your REXX scripting and System z application development and runtime.

• The compiler translates REXX source programs into compiled programs and the runtime library houses routines that are called by the compiled programs
• Both the compiler and the library provide efficient systems management
• Both support error checking
• Both provide information during debugging
• Both increase flexibility
• The compiler, library and compiled programs run on z/OS® using TSO/E and under CMS on z/VM®
• Separate licenses are available for Compiler for REXX on zSeries, Library for REXX on zSeries, and Alternate Library for REXX on zSeries (a free download.)

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• Compiler for REXX™ on zSeries®: Translates REXX source programs into compiled programs and is available in two forms: Compiler for REXX on z/OS® and Compiler for REXX on z/VM®

• Library for REXX on zSeries: Executes the compiled programs and is available in two forms: Library for REXX on z/OS and Library for REXX on z/VM

• Alternate Library for REXX on zSeries: Contains a language processor that transforms compiled programs and runs them with the REXX interpreter, which ships as part of the z/OS and z/VM operating systems. Users who do not have the Library for REXX on zSeries installed can then run compiled REXX programs

• The compiler checks syntax at compile time. This helps you find errors, even those that are difficult to detect or seldom occur

• The compiler reduces your system load, protects source code and programs and can improve productivity and quality

• The library offers cross-platform support for greater flexibility

• By including the Alternate Library in their program packages, software developers gain the benefits of shipping compiled REXX programs without the source code

• Maintenance of compiled programs is simplified because the code cannot be modified inadvertently

• Compiled programs can be shipped in load module format, simplifying packaging and installation

Operating System	Software	Hardware
z/OS	z/OS V1.5 (5694-A01), or later	IBM System z
z/VM	z/VM V4.4 (5739-A03), or z/VM V5.1 (5741-A05) or later	IBM System z