rohd 0.4.0

The Rapid Open Hardware Development (ROHD) framework, a framework for describing and verifying hardware

0.4.0

• Fixed a bug where generated SystemVerilog could apply bit slicing to an expression (https://github.com/intel/rohd/issues/163).
• Fixed a bug where constant collapsing in SystemVerilog could erroneously remove constant assignments (https://github.com/intel/rohd/issues/159).
• Fixed a bug where Combinational could have an incomplete sensitivity list causing incorrect simulation behavior (https://github.com/intel/rohd/issues/158).
• Significantly improved simulation performance of Combinational (https://github.com/intel/rohd/issues/106).
• Upgraded and made lints more strict within ROHD, leading to some quality and documentation improvements.
• Added a feature allowing negative indexing to access relative to the end of a Logic or LogicValue (https://github.com/intel/rohd/issues/99).
• Breaking: Increased minimum Dart SDK version to 2.18.0.
• Fixed a bug when parsing unsigned large binary integers (https://github.com/intel/rohd/issues/183).
• Exposed SynthesisResults from the SynthBuilder, making it easier to generate SystemVerilog modules into independent files (https://github.com/intel/rohd/issues/172).
• Breaking: Renamed topModuleName to definitionName in ExternalSystemVerilogModule (https://github.com/intel/rohd/issues/169).
• Added the mux function as a shortcut for building a Mux and returning the output of it (https://github.com/intel/rohd/issues/13).
• Deprecation: Improved naming of ports on basic gates, old port names remain accessible but deprecated for now (https://github.com/intel/rohd/issues/135).
• Fixed list of reserved SystemVerilog keywords for sanitization (https://github.com/intel/rohd/issues/168).

0.3.2

• Added the StateMachine abstraction for finite state machines.
• Added support for the modulo % operator.
• Added ability to register actions to be executed at the end of the simulation.
• Modified the WaveDumper to write to the .vcd file asynchronously to improve simulation performance while waveform dumping is enabled (https://github.com/intel/rohd/issues/3)

0.3.1

• Fixed a bug (introduced in v0.3.0) where WaveDumper doesn't properly dump multi-bit values to VCD (https://github.com/intel/rohd/issues/129).

0.3.0

• Breaking: Merged LogicValue and LogicValues into one type called LogicValue.
• Deprecation: Aligned LogicValue to Logic by renaming length to width.
• Breaking: Logic.put no longer accepts List<LogicValue>, swizzle it together instead.
• Deprecated Logic.valueInt and Logic.valueBigInt; instead use equivalent functions on Logic.value.
• Deprecated bit on both LogicValue and Logic; instead just check width.
• Added ability in LogicValue.toString to decide whether or not to include the width annotation through includeWidth argument.
• Fixed a bug related to zero-width construction of LogicValues (https://github.com/intel/rohd/issues/90).
• Fixed a bug where generated constants in SystemVerilog had no width, which can cause issues in some cases (e.g. swizzles) (https://github.com/intel/rohd/issues/89)
• Added capability to convert binary strings to ints with underscore separators using bin (https://github.com/intel/rohd/issues/56).
• Added getRange and reversed on Logic and slice on LogicValue to improve consistency.
• Using slice in reverse-index order now reverses the order.
• Added the ability to extend signals (e.g. zeroExtend and signExtend) on both Logic and LogicValue (https://github.com/intel/rohd/issues/101).
• Improved flexibility of IfBlock.
• Added withSet on LogicValue and Logic to make it easier to assign subsets of signals and values (https://github.com/intel/rohd/issues/101).
• Fixed a bug where 0-bit signals would sometimes improperly generate 0-bit constants in generated SystemVerilog (https://github.com/intel/rohd/issues/122).
• Added capability to reserve instance names, as well as provide and reserve definition names, for Modules and their corresponding generated outputs.

0.2.0

• Updated implementation to avoid Iterable.forEach to make debug easier.
• Added ofBool to LogicValue and LogicValues (https://github.com/intel/rohd/issues/34).
• Breaking: updated Interface API so that getPorts returns a Map from port names to Logic signals instead of just a list, which makes it easier to work with when names are uniquified.
• Breaking: removed setPort from Interface. Use setPorts instead.
• Deprecated swizzle and rswizzle global functions and replaced them with extensions on Lists of certain types including Logic, LogicValue, and LogicValues (https://github.com/intel/rohd/issues/70).
• Breaking: renamed ExternalModule to ExternalSystemVerilogModule since it is specifically for SystemVerilog.
• Breaking: made topModuleName a required named parameter in ExternalSystemVerilogModule to reduce confusion.
• Added simulationHasEnded bool to Simulator.
• Updated Simulator to allow for injected actions to return Futures which will be awaited.
• Fixed bug where Simulator warns about maximum simulation time when not appropriate.
• Fixed a bug where ExternalSystemVerilogModule could enter infinite recursion.
• Some improvements to SimCompare to properly check values at the end of a tick and support a wider variety of values in Vectors.
• Fixed a bug related to Sequential signal sampling where under certain scenarios, signals would pass through instead of being flopped (https://github.com/intel/rohd/issues/79).
• Deprecated a number of from functions and replaced them with of to more closely follow Dart conventions (https://github.com/intel/rohd/issues/72).

0.1.2

• Optimized construction of LogicValues to improve performance
• Renamed FF to Sequential (marked FF as deprecated) (breaking: removed clk signal)
• Added Sequential.multi for multi-edge-triggered blocks (https://github.com/intel/rohd/issues/42)
• Improved exception and error messages (https://github.com/intel/rohd/issues/64)

0.1.1

• Fix Interface.connectIO bug when no tags specified (https://github.com/intel/rohd/issues/38)
• Fix uniquified Interface.getPorts bug (https://github.com/intel/rohd/issues/59)

0.1.0

• The first formally versioned release of ROHD.