Accession Number : ADA303227

Title :   Synthesizing Field Programmable Gate Array Circuitry Using C++.

Descriptive Note : Final rept. 31 Mar-31 Aug 95,

Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Spillane, John T. ; Zmuda, Michael A.

PDF Url : ADA303227

Report Date : AUG 1995

Pagination or Media Count : 20

Abstract : In recent years, systems which use Field Programmable Gate Arrays (FPGAs) to perform computations have been shown to match or even exceed super computer levels of performance. These FPGA based custom computing machines (FCCMs) take advantage of an FPGA's gate-level reconfigurability to implement instructions and architectures specific to the problem being solved. The ability to tailor the hardware to a specific problem gives FCCMs a great speed advantage over general purpose processors with fixed instruction sets. Currently, one of the largest obstacles to the use of an FCCM is program or instruction set development. Since an FCCM is programmed at the gate level, the programmer must have detailed knowledge of both the algorithm to be implemented and how to implement necessary operations (e.g. addition, subtraction, and multiplication) required by the algorithm in the FCCM's hardware. This design process is comparable to programming in assembly language, though hardware instruction design is arguably more difficult. Recent research efforts have investigated the creation of a novel, symbiotic compiler which can simplify the development of programs for FCCMs by hiding the hardware instruction set generation from the programmer in much the same way a traditional compiler isolates the user from a specific machine's assembly language. This paper presents the details of the internal operation of this FCCM compiler and plans for future work.

Descriptors :   *SYSTEMS ENGINEERING, *ARRAYS, *COMPILERS, ALGORITHMS, COMPUTATIONS, COMPUTERS, COMPUTER PROGRAMMING, PROGRAMMING LANGUAGES, COMPUTER ARCHITECTURE, GATES(CIRCUITS), INTERNAL, SYNCHRONIZATION(ELECTRONICS), INSTRUCTIONS, FIELD EQUIPMENT, DEBUGGING(COMPUTERS), ASSEMBLY LANGUAGES.

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE