Supporting Fpga Microprocessors Through Retargetable Software Tools

Driving FPGA systems from ANSI C is possible using lcc (a retargetable ANSI C compiler) targeted at an FPGA system and dasm (a retargetable, flexible assembler) tools. The compiler supports custom hardware capabilities of FPGA systems, as well as all constructs of C. The assembler reads instruction definitions at assemble time, allowing the user to add new custom hardware functions which dasm can assemble correctly to an instruction stream the hardware executes. A source code debugger has been created for this system. COMMITTEE APPROVAL: Brad L. Hutchings Committee Chairman James K. Archibald Committee Member J. Kelly Flanagan Committee Member Wynn C. Stirling Graduate Coordinator SUPPORTING FPGA MICROPROCESSORS THROUGH RETARGETABLE SOFTWARE TOOLS A Thesis Submitted to the Department of Electrical and Computer Engineering Brigham Young University In Partial Fulfillment of the Requirements for the Degree Master of Science by David A. Clark April This thesis by David A. Clark is acce..

An Assessment Of The Suitability Of Reconfigurable Systems For Digital Signal Processing

Digital signal processing (DSP) is an application area requiring intense amounts of I/O and computation, often being applied in areas that require a realtime response. The real-time nature of many DSP systems combined with their intensive computation and data flow requires performance beyond that which can be achieved with a conventional microprocessor. As a result, many custom hardware systems have been designed and developed to provide the required performance. These custom systems, however, have the disadvantage of inflexibility and a high cost of development. The DSP processor attempts to overcome the inflexibility and development costs of custom hardware by providing flexibility through software instruction decoding and execution and high performance through custom arithmetic and I/O components. Reconfigurable hardware using FPGAs has also generated interest for use in implementing digital signal processing systems due to its ability to implement custom hardware solutions while st..

Pathways activated during human asthma exacerbation as revealed by gene expression patterns in blood

This study has shown that analysis of PBMCs reveals systemic changes accompanying asthma exacerbation and has laid the foundation for future comparative studies using PBMCs