.clang-format

+AccessModifierOffset: -4
+
+AlignAfterOpenBracket: DontAlign
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: true
+AlignEscapedNewlines: DontAlign
+AlignOperands: false
+AlignTrailingComments: true
+
+AllowAllArgumentsOnNextLine: true
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: Empty
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: false
+
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: Yes
+
+BinPackArguments: false
+BinPackParameters: true
+
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterCaseLabel: false
+  AfterClass: false
+  AfterControlStatement: false
+  AfterEnum: false
+  AfterFunction: false
+  AfterNamespace: false
+  AfterObjCDeclaration: false
+  AfterStruct: false
+  AfterUnion: false
+  AfterExternBlock: false
+  BeforeCatch: false
+  BeforeElse: false
+  IndentBraces: false
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: true
+
+BreakBeforeBinaryOperators: None
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
+BreakStringLiterals: true
+
+ColumnLimit: 140
+
+CommentPragmas: ''
+
+CompactNamespaces: false
+
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+
+ContinuationIndentWidth: 4
+
+Cpp11BracedListStyle: true
+
+DerivePointerAlignment: false
+
+DisableFormat: false
+
+FixNamespaceComments: true
+
+ForEachMacros:
+  - Q_FOREACH
+  - BOOST_FOREACH
+  - FOREACH
+  - FOR_EACH
+
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: '^<'
+    Priority: 2
+  - Regex: '.*'
+    Priority: 1
+IncludeIsMainRegex: '(_test)?$'
+
+IndentCaseLabels: true
+IndentGotoLabels: false
+IndentPPDirectives: None
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+
+KeepEmptyLinesAtTheStartOfBlocks: false
+
+Language: Cpp
+
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+
+MaxEmptyLinesToKeep: 1
+
+NamespaceIndentation: None
+NamespaceMacros:
+  - NAMESPACE
+
+PenaltyBreakAssignment: 100
+PenaltyBreakBeforeFirstCallParameter: 10
+PenaltyBreakComment: 10
+PenaltyBreakFirstLessLess: 100
+PenaltyBreakString: 10
+PenaltyBreakTemplateDeclaration: 10000
+PenaltyExcessCharacter: 999999
+PenaltyReturnTypeOnItsOwnLine: 10000
+
+PointerAlignment: Left
+
+ReflowComments: false
+
+SortIncludes: true
+SortUsingDeclarations: true
+
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+
+Standard: Cpp11
+
+StatementMacros:
+  - Q_UNUSED
+
+TabWidth: 4
+
+TypenameMacros:
+  - STACK_OF
+  - LIST
+  - LIST_ENTRY
+
+UseTab: ForContinuationAndIndentation
\ No newline at end of file

.gitignore

+.vs/
+.vscode/
+build*/
+bin*/
+logs/
+dist/
+CMakeLists.txt.user*
+*.autosave
+*.creator
+*.creator.user*
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+*~
+.fuse_hudden*
+.directory
+.Trash-*
+.nfs*
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+$RECYCLE.BIN/
+*.stackdump
+[Dd]esktop.ini
+*.egg-info
+__pycache__/
+env/
+venv/
\ No newline at end of file

.gitlab-ci.yml

@@ -6,5 +6,4 @@ PythonBuild:
   artifacts:
     untracked: true
   script:
-    - apt-get update && apt-get install python3 -y
-    - bash build.sh
\ No newline at end of file
+    - apt-get update && apt-get install python3 -y
\ No newline at end of file

CMakeLists.txt

+cmake_minimum_required(VERSION 3.8)
+
+project(
+	"B-ASIC"
+	VERSION 0.0.1
+	DESCRIPTION "Better ASIC Toolbox for python3"
+	LANGUAGES C CXX
+)
+
+find_package(fmt 6.1.2 REQUIRED)
+find_package(pybind11 CONFIG REQUIRED)
+
+set(LIBRARY_NAME "b_asic")
+set(TARGET_NAME "_${LIBRARY_NAME}")
+
+if(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
+	include(GNUInstallDirs)
+	set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_INSTALL_LIBDIR}")
+endif()
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_PDB_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_PDB_OUTPUT_DIRECTORY_DEBUG "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_PDB_OUTPUT_DIRECTORY_RELEASE "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+
+pybind11_add_module(
+	"${TARGET_NAME}"
+	"${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp"
+)
+
+target_include_directories(
+	"${TARGET_NAME}"
+    PRIVATE
+        "${CMAKE_CURRENT_SOURCE_DIR}/src"
+)
+
+target_compile_features(
+	"${TARGET_NAME}"
+	PRIVATE
+		cxx_std_17
+)
+target_compile_options(
+	"${TARGET_NAME}"
+	PRIVATE
+		$<$<OR:$<CXX_COMPILER_ID:GNU>,$<CXX_COMPILER_ID:Clang>>:
+			-W -Wall -Wextra -Werror -Wno-psabi
+			$<$<CONFIG:Debug>:-g>
+			$<$<NOT:$<CONFIG:Debug>>:-O3>
+		>
+		$<$<CXX_COMPILER_ID:MSVC>:
+			/W3 /WX /permissive- /utf-8
+			$<$<CONFIG:Debug>:/Od>
+			$<$<NOT:$<CONFIG:Debug>>:/Ot>
+		>
+)
+
+target_link_libraries(
+	"${TARGET_NAME}"
+	PRIVATE
+		fmt::fmt-header-only
+)
+
+add_custom_target(
+	remove_old_python_dir ALL
+	COMMAND ${CMAKE_COMMAND} -E remove_directory "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${LIBRARY_NAME}"
+	COMMENT "Removing old python directory ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${LIBRARY_NAME}"
+)
+add_custom_target(
+	copy_python_dir ALL
+	COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_CURRENT_LIST_DIR}/${LIBRARY_NAME}" "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${LIBRARY_NAME}"
+	COMMENT "Copying python files to ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${LIBRARY_NAME}"
+	DEPENDS "${TARGET_NAME}" remove_old_python_dir
+)
\ No newline at end of file

LICENSE

 MIT License
 
-Copyright (c) 2020 TDDD96
+Copyright (c) 2020 TDDD96 PUM4
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

MANIFEST.in

+include README.md
+include LICENSE
+include CMakeLists.txt
+recursive-include src *.cpp *.h

README.md

-<img src="https://files.slack.com/files-pri/TSHPRJY83-FTTRW9MQ8/b-asic-logo-opaque.png"  width="318" height="100">
-<br>
-<h3>The leading company in circuit design<h3>
\ No newline at end of file
+<img src="logo.png" width="278" height="100">
+
+# B-ASIC - Better ASIC Toolbox
+B-ASIC is an ASIC toolbox for Python 3 that simplifies circuit design and optimization.
+
+## Development
+How to build and debug the library during development.
+
+### Prerequisites
+The following packages are required in order to build the library:
+* cmake 3.8+
+  * gcc 7+/clang 7+/msvc 16+
+  * fmtlib 6.1.2+
+  * pybind11 2.3.0+
+* python 3.6+
+  * setuptools
+  * wheel
+  * pybind11
+  * numpy
+  * pyside2/pyqt5
+
+### Using CMake directly
+How to build using CMake.
+
+#### Configuring
+In `B-ASIC`:
+```
+mkdir build
+cd build
+cmake ..
+```
+
+#### Building (Debug)
+In `B-ASIC/build`:
+```
+cmake --build .
+```
+The output gets written to `B-ASIC/build/lib`.
+
+#### Building (Release)
+In `B-ASIC/build`:
+```
+cmake --build . --config Release
+```
+The output gets written to `B-ASIC/build/lib`.
+
+### Using setuptools to create a package
+How to create a package using setuptools that can be installed using pip.
+
+#### Setup (Binary distribution)
+In `B-ASIC`:
+```
+python3 setup.py bdist_wheel
+```
+The output gets written to `B-ASIC/dist/b_asic-<version>-<python_tag>-<abi_tag>-<platform_tag>.whl`.
+
+#### Setup (Source distribution)
+In `B-ASIC`:
+```
+python3 setup.py sdist
+```
+The output gets written to `B-ASIC/dist/b-asic-<version>.tar.gz`.
+
+#### Installation (Binary distribution)
+In `B-ASIC/dist`:
+```
+pip install b_asic-<version>-<python_tag>-<abi_tag>-<platform_tag>.whl
+```
+
+#### Installation (Source distribution)
+In `B-ASIC/dist`:
+```
+pip install b-asic-<version>.tar.gz
+```
+
+### Running tests
+How to run the tests using pytest in a virtual environment.
+
+#### Linux/OS X
+In `B-ASIC`:
+```
+python3 -m venv env
+source env/bin/activate
+pip install .
+pytest
+```
+
+#### Windows
+In `B-ASIC` (as admin):
+```
+python3 -m venv env
+.\env\Scripts\activate.bat
+pip install .
+pytest
+```
+
+## Usage
+How to build and use the library as a user.
+
+### Installation
+```
+pip install b_asic
+```
+
+### Importing
+```
+python3
+>>> import b_asic as asic
+>>> help(asic)
+```
+
+## License
+B-ASIC is distributed under the MIT license.
+See the included LICENSE file for more information.

b_asic/__init__.py

+"""
+Better ASIC Toolbox.
+TODO: More info.
+"""
+from _b_asic import *
+from b_asic.basic_operation import *
+from b_asic.core_operations import *
+from b_asic.operation import *
+from b_asic.precedence_chart import *
+from b_asic.port import *
+from b_asic.schema import *
+from b_asic.signal_flow_graph import *
+from b_asic.signal import *
+from b_asic.simulation import *
\ No newline at end of file

b_asic/basic_operation.py

+"""
+B-ASIC Basic Operation Module.
+TODO: More info.
+"""
+
+from b_asic.port import InputPort, OutputPort
+from b_asic.signal import SignalSource, SignalDestination
+from b_asic.operation import OperationId, Operation
+from b_asic.simulation import SimulationState, OperationState
+from abc import ABC, abstractmethod
+from typing import List, Dict, Optional, Any
+from numbers import Number
+
+
+class BasicOperation(Operation):
+	"""
+	Generic abstract operation class which most implementations will derive from.
+	TODO: More info.
+	"""
+
+	_identifier: OperationId
+	_input_ports: List[InputPort]
+	_output_ports: List[OutputPort]
+	_parameters: Dict[str, Optional[Any]]
+
+	def __init__(self, identifier: OperationId):
+		"""
+		Construct a BasicOperation.
+		"""
+		self._identifier = identifier
+		self._input_ports = []
+		self._output_ports = []
+		self._parameters = {}
+
+	@abstractmethod
+	def evaluate(self, inputs: list) -> list:
+		"""
+		Evaluate the operation and generate a list of output values given a list of input values.
+		"""
+		pass
+
+	def identifier(self) -> OperationId:
+		return self._identifier
+
+	def inputs(self) -> List[InputPort]:
+		return self._input_ports.copy()
+
+	def outputs(self) -> List[OutputPort]:
+		return self._output_ports.copy()
+
+	def input_count(self) -> int:
+		return len(self._input_ports)
+
+	def output_count(self) -> int:
+		return len(self._output_ports)
+
+	def input(self, i: int) -> InputPort:
+		return self._input_ports[i]
+
+	def output(self, i: int) -> OutputPort:
+		return self._output_ports[i]
+
+	def params(self) -> Dict[str, Optional[Any]]:
+		return self._parameters.copy()
+
+	def param(self, name: str) -> Optional[Any]:
+		return self._parameters.get(name)
+
+	def set_param(self, name: str, value: Any) -> None:
+		assert name in self._parameters # TODO: Error message.
+		self._parameters[name] = value
+
+	def evaluate_outputs(self, state: SimulationState) -> List[Number]:
+		# TODO: Check implementation.
+		input_count: int = self.input_count()
+		output_count: int = self.output_count()
+		assert input_count == len(self._input_ports) # TODO: Error message.
+		assert output_count == len(self._output_ports) # TODO: Error message.
+
+		self_state: OperationState = state.operation_states[self.identifier()]
+
+		while self_state.iteration < state.iteration:
+			input_values: List[Number] = [0] * input_count
+			for i in range(input_count):
+				source: SignalSource = self._input_ports[i].signal().source
+				input_values[i] = source.operation.evaluate_outputs(state)[source.port_index]
+
+			self_state.output_values = self.evaluate(input_values)
+			assert len(self_state.output_values) == output_count # TODO: Error message.
+			self_state.iteration += 1
+			for i in range(output_count):
+				for signal in self._output_ports[i].signals():
+					destination: SignalDestination = signal.destination
+					destination.evaluate_outputs(state)
+
+		return self_state.output_values
+
+	def split(self) -> List[Operation]:
+		# TODO: Check implementation.
+		results = self.evaluate(self._input_ports)
+		if all(isinstance(e, Operation) for e in results):
+			return results
+		return [self]
+
+	# TODO: More stuff.

b_asic/core_operations.py

+"""
+B-ASIC Core Operations Module.
+TODO: More info.
+"""
+
+from b_asic.port import InputPort, OutputPort
+from b_asic.operation import OperationId, Operation
+from b_asic.basic_operation import BasicOperation
+from numbers import Number
+
+
+class Input(Operation):
+	"""
+	Input operation.
+	TODO: More info.
+	"""
+
+	# TODO: Implement.
+	pass
+
+
+class Constant(BasicOperation):
+	"""
+	Constant value operation.
+	TODO: More info.
+	"""
+
+	def __init__(self, identifier: OperationId, value: Number):
+		"""
+		Construct a Constant.
+		"""
+		super().__init__(identifier)
+		self._output_ports = [OutputPort()] # TODO: Generate appropriate ID for ports.
+		self._parameters["value"] = value
+
+	def evaluate(self, inputs: list) -> list:
+		return [self.param("value")]
+
+
+class Addition(BasicOperation):
+	"""
+	Binary addition operation.
+	TODO: More info.
+	"""
+
+	def __init__(self, identifier: OperationId):
+		"""
+		Construct an Addition.
+		"""
+		super().__init__(identifier)
+		self._input_ports = [InputPort(), InputPort()] # TODO: Generate appropriate ID for ports.
+		self._output_ports = [OutputPort()] # TODO: Generate appropriate ID for ports.
+
+	def evaluate(self, inputs: list) -> list:
+		return [inputs[0] + inputs[1]]
+
+
+class ConstantMultiplication(BasicOperation):
+	"""
+	Unary constant multiplication operation.
+	TODO: More info.
+	"""
+
+	def __init__(self, identifier: OperationId, coefficient: Number):
+		"""
+		Construct a ConstantMultiplication.
+		"""
+		super().__init__(identifier)
+		self._input_ports = [InputPort()] # TODO: Generate appropriate ID for ports.
+		self._output_ports = [OutputPort()] # TODO: Generate appropriate ID for ports.
+		self._parameters["coefficient"] = coefficient
+
+	def evaluate(self, inputs: list) -> list:
+		return [inputs[0] * self.param("coefficient")]
+
+# TODO: More operations.

b_asic/operation.py

+"""
+B-ASIC Operation Module.
+TODO: More info.
+"""
+
+from abc import ABC, abstractmethod
+from numbers import Number
+from typing import NewType, List, Dict, Optional, Any, TYPE_CHECKING
+
+if TYPE_CHECKING:
+	from b_asic.port import InputPort, OutputPort
+	from b_asic.simulation import SimulationState
+
+OperationId = NewType("OperationId", int)
+
+
+class Operation(ABC):
+	"""
+	Operation interface.
+	TODO: More info.
+	"""
+
+	@abstractmethod
+	def identifier(self) -> OperationId:
+		"""
+		Get the unique identifier.
+		TODO: Move id info to SFG, remove id class members.
+		"""
+		pass
+
+	@abstractmethod
+	def inputs(self) -> "List[InputPort]":
+		"""
+		Get a list of all input ports.
+		"""
+		pass
+
+	@abstractmethod
+	def outputs(self) -> "List[OutputPort]":
+		"""
+		Get a list of all output ports.
+		"""
+		pass
+
+	@abstractmethod
+	def input_count(self) -> int:
+		"""
+		Get the number of input ports.
+		"""
+		pass
+
+	@abstractmethod
+	def output_count(self) -> int:
+		"""
+		Get the number of output ports.
+		"""
+		pass
+
+	@abstractmethod
+	def input(self, i: int) -> "InputPort":
+		"""
+		Get the input port at index i.
+		"""
+		pass
+
+	@abstractmethod
+	def output(self, i: int) -> "OutputPort":
+		"""
+		Get the output port at index i.
+		"""
+		pass
+
+	@abstractmethod
+	def params(self) -> Dict[str, Optional[Any]]:
+		"""
+		Get a dictionary of all parameter values.
+		"""
+		pass
+
+	@abstractmethod
+	def param(self, name: str) -> Optional[Any]:
+		"""
+		Get the value of a parameter.
+		Returns None if the parameter is not defined.
+		"""
+		pass
+
+	@abstractmethod
+	def set_param(self, name: str, value: Any) -> None:
+		"""
+		Set the value of a parameter.
+		The parameter must be defined.
+		"""
+		pass
+
+	@abstractmethod
+	def evaluate_outputs(self, state: "SimulationState") -> List[Number]:
+		"""
+		Simulate the circuit until its iteration count matches that of the simulation state,
+		then return the resulting output vector.
+		"""
+		pass
+
+	@abstractmethod
+	def split(self) -> "List[Operation]":
+		"""
+		Split the operation into multiple operations.
+		If splitting is not possible, this may return a list containing only the operation itself.
+		"""
+		pass
+
+	# TODO: More stuff.
+

b_asic/port.py

+"""
+B-ASIC Port Module.
+TODO: More info.
+"""
+
+from b_asic.signal import Signal
+from abc import ABC, abstractmethod
+from typing import NewType, Optional, List, Dict
+
+PortId = NewType("PortId", int)
+
+
+class Port(ABC):
+	"""
+	Abstract port class.
+	TODO: More info.
+	"""
+
+	_identifier: PortId
+
+	def __init__(self, identifier: PortId):
+		"""
+		Construct a Port.
+		"""
+		self._identifier = identifier
+
+	def identifier(self) -> PortId:
+		"""
+		Get the unique identifier.
+		"""
+		return self._identifier
+
+	@abstractmethod
+	def signals(self) -> List[Signal]:
+		"""
+		Get a list of all connected signals.
+		"""
+		pass
+
+	@abstractmethod
+	def signal_count(self) -> int:
+		"""
+		Get the number of connected signals.
+		"""
+		pass
+
+	@abstractmethod
+	def signal(self, i: int = 0) -> Signal:
+		"""
+		Get the connected signal at index i.
+		"""
+		pass
+
+	@abstractmethod
+	def connect(self, signal: Signal) -> None:
+		"""
+		Connect a signal.
+		"""
+		pass
+
+	@abstractmethod
+	def disconnect(self, i: int = 0) -> None:
+		"""
+		Disconnect a signal.
+		"""
+		pass
+
+	# TODO: More stuff.
+
+
+class InputPort(Port):
+	"""
+	Input port.
+	TODO: More info.
+	"""
+	_source_signal: Optional[Signal]
+
+	def __init__(self, identifier: PortId):
+		"""
+		Construct an InputPort.
+		"""
+		super().__init__(identifier)
+		self._source_signal = None
+
+	def signals(self) -> List[Signal]:
+		return [] if self._source_signal == None else [self._source_signal]
+
+	def signal_count(self) -> int:
+		return 0 if self._source_signal == None else 1
+
+	def signal(self, i: int = 0) -> Signal:
+		assert i >= 0 and i < self.signal_count() # TODO: Error message.
+		assert self._source_signal != None # TODO: Error message.
+		return self._source_signal
+
+	def connect(self, signal: Signal) -> None:
+		self._source_signal = signal
+
+	def disconnect(self, i: int = 0) -> None:
+		assert i >= 0 and i < self.signal_count() # TODO: Error message.
+		self._source_signal = None
+
+	# TODO: More stuff.
+
+
+class OutputPort(Port):
+	"""
+	Output port.
+	TODO: More info.
+	"""
+
+	_destination_signals: List[Signal]
+
+	def __init__(self, identifier: PortId):
+		"""
+		Construct an OutputPort.
+		"""
+		super().__init__(identifier)
+		self._destination_signals = []
+
+	def signals(self) -> List[Signal]:
+		return self._destination_signals.copy()
+
+	def signal_count(self) -> int:
+		return len(self._destination_signals)
+
+	def signal(self, i: int = 0) -> Signal:
+		assert i >= 0 and i < self.signal_count() # TODO: Error message.
+		return self._destination_signals[i]
+
+	def connect(self, signal: Signal) -> None:
+		assert signal not in self._destination_signals # TODO: Error message.
+		self._destination_signals.append(signal)
+
+	def disconnect(self, i: int = 0) -> None:
+		assert i >= 0 and i < self.signal_count() # TODO: Error message.
+		del self._destination_signals[i]
+
+	# TODO: More stuff.

b_asic/precedence_chart.py

+"""
+B-ASIC Precedence Chart Module.
+TODO: More info.
+"""
+
+from b_asic.signal_flow_graph import SFG
+
+
+class PrecedenceChart:
+	"""
+	Precedence chart constructed from a signal flow graph.
+	TODO: More info.
+	"""
+
+	sfg: SFG
+	# TODO: More members.
+
+	def __init__(self, sfg: SFG):
+		"""
+		Construct a PrecedenceChart.
+		"""
+		self.sfg = sfg
+		# TODO: Implement.
+
+	# TODO: More stuff.

b_asic/schema.py

+"""
+B-ASIC Schema Module.
+TODO: More info.
+"""
+
+from b_asic.precedence_chart import PrecedenceChart
+
+
+class Schema:
+	"""
+	Schema constructed from a precedence chart.
+	TODO: More info.
+	"""
+
+	pc: PrecedenceChart
+	# TODO: More members.
+
+	def __init__(self, pc: PrecedenceChart):
+		"""
+		Construct a Schema.
+		"""
+		self.pc = pc
+		# TODO: Implement.
+
+	# TODO: More stuff.

b_asic/signal.py

+"""
+B-ASIC Signal Module.
+TODO: More info.
+"""
+
+from b_asic.operation import Operation
+from typing import NewType
+
+SignalId = NewType("SignalId", int)
+
+
+class SignalSource:
+	"""
+	Handle to a signal source.
+	TODO: More info.
+	"""
+	operation: Operation
+	port_index: int
+
+	def __init__(self, operation: Operation, port_index: int):
+		"""
+		Construct a SignalSource.
+		"""
+		self.operation = operation
+		self.port_index = port_index
+
+	# TODO: More stuff.
+
+
+class SignalDestination:
+	"""
+	Handle to a signal destination.
+	TODO: More info.
+	"""
+	operation: Operation
+	port_index: int
+
+	def __init__(self, operation: Operation, port_index: int):
+		"""
+		Construct a SignalDestination.
+		"""
+		self.operation = operation
+		self.port_index = port_index
+
+	# TODO: More stuff.
+
+
+class Signal:
+	"""
+	A connection between two operations consisting of a source and destination handle.
+	TODO: More info.
+	"""
+	_identifier: SignalId
+	source: SignalSource
+	destination: SignalDestination
+
+	def __init__(self, identifier: SignalId, source: SignalSource, destination: SignalDestination):
+		"""
+		Construct a Signal.
+		"""
+		self._identifier = identifier
+		self.source = source
+		self.destination = destination
+
+	def identifier(self) -> SignalId:
+		"""
+		Get the unique identifier.
+		"""
+		return self._identifier
+
+	# TODO: More stuff.

b_asic/signal_flow_graph.py

+"""
+B-ASIC Signal Flow Graph Module.
+TODO: More info.
+"""
+
+from b_asic.operation import OperationId, Operation
+from b_asic.basic_operation import BasicOperation
+from b_asic.signal import SignalSource, SignalDestination
+from b_asic.simulation import SimulationState, OperationState
+from typing import List
+
+
+class SFG(BasicOperation):
+	"""
+	Signal flow graph.
+	TODO: More info.
+	"""
+
+	_operations: List[Operation]
+
+	def __init__(self, identifier: OperationId, input_destinations: List[SignalDestination], output_sources: List[SignalSource]):
+		"""
+		Construct a SFG.
+		"""
+		super().__init__(identifier)
+		# TODO: Allocate input/output ports with appropriate IDs.
+		self._operations = []
+		# TODO: Traverse the graph between the inputs/outputs and add to self._operations.
+		# TODO: Connect ports with signals with appropriate IDs.
+
+	def evaluate(self, inputs: list) -> list:
+		return [] # TODO: Implement
+
+	def split(self) -> List[Operation]:
+		return self._operations
+
+	# TODO: More stuff.

b_asic/simulation.py

+"""
+B-ASIC Simulation Module.
+TODO: More info.
+"""
+
+from b_asic.operation import OperationId
+from numbers import Number
+from typing import List, Dict
+
+
+class OperationState:
+	"""
+	Simulation state of an operation.
+	TODO: More info.
+	"""
+
+	output_values: List[Number]
+	iteration: int
+
+	def __init__(self):
+		"""
+		Construct an OperationState.
+		"""
+		self.output_values = []
+		self.iteration = 0
+
+
+class SimulationState:
+	"""
+	Simulation state.
+	TODO: More info.
+	"""
+
+	operation_states: Dict[OperationId, OperationState]
+	iteration: int
+
+	def __init__(self):
+		"""
+		Construct a SimulationState.
+		"""
+		self.operation_states = {}
+		self.iteration = 0
+
+	# TODO: More stuff.

build.sh

-#! bin/sh
-for n in `find . -name "*.py"`
-do
-  python3 $n
-done
\ No newline at end of file

helloworld.py

-print("Hello world")
\ No newline at end of file