Other

Bull Hn Information Systems, Inc.

Bull Hn

John Edward Heath

Russell Wayne Guenthner

Clinton B Eckard

Albert Henry John Wigchert

Cynthia S Guenthner

Nicholas John Colasacco

Sidney L Andress

F Michel Brown

Todd Bradley Kneisel

Clint B Eckard

Michel F Brown

A method is disclosed for translating by a computer system of a COBOL computer program into a translated computer program in a readable and maintainable syntax in an object oriented programming language. The translated program including variable names equivalent to the original COBOL variable names and with attributes described in COBOL syntax. The translating method further providing for memory allocation in the translated computer program for storage of 'COBOL' variables compatible with that of the original COBOL program; a description of program flow that is readable, and utilizing arithmetic operators to describe operations between COBOL variables. Also disclosed is a special object oriented run-time library for creating and performing operations between COBOL numeric objects, including maintaining storage of variable content in the original COBOL format, and for enabling readability of the translated source code by allowing arguments for variable type descriptions to be expressed in COBOL syntax.

Method for translating a cobol source program into readable and maintainable program code in an object oriented second programming language

A method and apparatus is disclosed for compilation of an original Cobol program with support for improved performance by increased parallelism during execution using multiple threads of processing. The approach includes a two stage compilation process, the first compilation/translation step by a first specialized compiler/translator that takes as input a Cobol source program that includes parallelization directives, and produces as output an intermediate computer program in a second computer programming language, the intermediate program including parallelization directives in the second computer programming language. The intermediate program is then compiled utilizing a selected second compiler that provides support for parallelism described in the second programming language. The approach optionally allows for use of pragmas serving as parallelization directives to the compiler in the original Cobol program or in the intermediate program.

Method and apparatus enabling multi threaded program execution for a Cobol program including OpenMP directives by utilizing a two-stage compilation process

A method and apparatus is disclosed for compilation of an original Cobol program and building an executable program with support for improved performance by increased parallelism during execution using multiple threads of processing. The approach includes a compilation (or translation) step utilizing a first compiler or translating program which is a parallel aware translating first compiler. The parallel aware first compiler is a specialized compiler/translator which takes as input a Cobol source program, and produces as output an intermediate computer program in a second computer programming language, the intermediate program including parallelization directives, the intermediate program intended for further compilation utilizing an existing selected second compiler, the second compiler providing support for parallelism for programs described in the second programming language. The approach optionally allows for use of pragmas serving as parallelization directives to the compiler in the original Cobol program or in the intermediate program.

Method and apparatus for enabling parallel processing during execution of a Cobol source program using two-stage compilation

Two unique instructions for the instruction set of a target 36-bit machine which is emulated on a host 64-bit machine are provided in order to achieve visibility, to an emulated application program, of a 'containing' word stored in the memory of the host machine. A 'LOAD64' instruction loads the emulator memory location representing an emulated &#x201c;Q&#x201d; (supplementary accumulator) register with the &#x201c;normal&#x201d; 36-bits of the containing word. At the same time, the &#x201c;upper&#x201d; 28 bits of the 64-bit containing word is copied into the emulator memory location representing an emulated &#x201c;A&#x201d; (accumulator) register. Thus, the emulated 36-bit machine &#x201c;sees&#x201d; and can examine the 64-bit word in its entirety. A &#x201c;Store64&#x201d; instruction stores the emulated &#x201c;Q&#x201d; register contents into the lower 36-bits of the 64-bit containing word, and at the same time stores the lower 28 bits of the emulated &#x201c;A&#x201d; register contents into the upper 28 bits of the 64-bit containing word.

Instructions providing new functionality for utilization by a target system program of host system container words during computer system emulation with host word size larger than that of the emulated machine

Instructions to load and store containing words in a computer system emulator with host word size larger than that of emulated machine

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Glendale, AZ, United States of America

John Edward Heath