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64 lines
1.5 KiB
ReStructuredText
64 lines
1.5 KiB
ReStructuredText
Auxiliary libraries
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===================
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The Yosys source distribution contains some auxiliary libraries that are bundled
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with Yosys.
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.. todo:: fill out the newer auxiliary libs
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BigInt
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------
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The files in ``libs/bigint/`` provide a library for performing arithmetic with
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arbitrary length integers. It is written by Matt McCutchen.
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The BigInt library is used for evaluating constant expressions, e.g. using the
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ConstEval class provided in kernel/consteval.h.
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See also: http://mattmccutchen.net/bigint/
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dlfcn-win32
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-----------
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The files in ``libs/dlfcn-win32`` provide...
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ezSAT
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-----
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The files in ``libs/ezsat`` provide a library for simplifying generating CNF
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formulas for SAT solvers. It also contains bindings of MiniSAT. The ezSAT
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library is written by C. Wolf. It is used by the sat pass (see
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:doc:`../cmd/sat`).
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fst
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---
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The files in ``libs/fst`` provide...
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json11
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------
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The files in ``libs/json11`` provide...
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MiniSAT
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-------
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The files in ``libs/minisat`` provide...
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SHA1
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----
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The files in ``libs/sha1/`` provide a public domain SHA1 implementation written
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by Steve Reid, Bruce Guenter, and Volker Grabsch. It is used for generating
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unique names when specializing parameterized modules.
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.. _sec:SubCircuit:
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SubCircuit
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----------
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The files in ``libs/subcircuit`` provide a library for solving the subcircuit
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isomorphism problem. It is written by C. Wolf and based on the Ullmann Subgraph
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Isomorphism Algorithm :cite:p:`UllmannSubgraphIsomorphism`. It is used by the
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extract pass (see :doc:`../cmd/extract`).
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