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Take a look at the schedule First half of the course: Second half of the course: Hardware designs are becoming more and more complex There is a need to control low-level details even at high levels of design Better languages are needed Transfer progress in programming languages to Hardware Description Languages. Provide a concise notation Powerful abstraction mechanisms to deal with complexity Good support for generic hardware descriptions Equational style supports reasoning and rewrites What are people doing?
See the HFL workshop. Lava is a hardware description language embedded in Haskell Haskell is a purely functional programming language. A compiler GHC and two interactive systems Hugs, ghci are available. Lava is essentially a Haskell library from which you can import types and functions for describing circuits, simulating circuits, feeding circuits to other tools, e.
There is also the guide How to Use the Lava System. Instructions for accessing the tools have recently been updated. Half Adder Interface halfAdder:: Simulating Lava circuits Simulating a single cycle simulate circuit input Example: Full Adder Interface fullAdder:: Lists and Connection patterns Rearranging input: There is a newer version of the translator that allows you to omit the clock. Put import VhdlNew08 in your source file. Formal Verification of Lava circuits smv property For verifying safety properties, the property can a circuit with a number of inputs of fixed size a single boolean output For verifying generic circuits, a size has to be chosen FV example Our own implementation of exclusive or: Creates a bigger circuit includes the two circuits to be checked for equivalence feeds the same input to both circuits compares the output.
Equivalence checking Checking a specific circuit: Conclusion The examples from this lecture: