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An Embedded Hardware Description Language using Dependent Types
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README.md

README.md

PiWare

An Embedded Hardware Description Language using Dependent Types.

This repository contains the source code and documentation of the Π-Ware project, originally developed as my M.Sc thesis project at Utrecht University between March and August 2014 and continued afterwards as doctoral research.

PiWare is an Embedded Domain-Specific Language (EDSL) for hardware design, packaged as a library for the dependently-typed Agda programming language. It leverages dependent types in order to ban entire classes of design mistakes by construction, as well as to prove circuit correctness according to a high-level functional specification.

Circuits modeled in PiWare can be simulated (run over bit vectors) and can be synthesized to VHDL netlists. Properties over circuit behaviour can also be proven using PiWare, even for (possibly infinite) families of circuits.

In contrast to other approaches to formal verification using automated solvers, Π-Ware is designed from the ground up to facilitate compositional and modular proofs. Several features are in place to help build proofs for a certain circuit given proofs about its subparts.

The project proposal, motivation, literature review, and high-level technical descriptions behind the design choices taken are documented in the project wiki.

This repository is furthermore organized as follows:

  • The agda subdirectory contains all source code and auxiliary scripts to build/run PiWare
  • Under docs lie "manual-like" pages describing the design of the library and how to use it
  • In thesis you can find the M.Sc thesis report which started it all (with accompanying figures, etc.)
  • Under slides are the sets of slides from presentations given about Π-Ware (thesis defense and other events)
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