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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

Changed

Deprecated

Removed

Fixed

0.7.1

Fixed

  • Fixed a bug with typing asserts that caused resource unwinding to fail on differential pairs.

0.7.0

Added

  • Added new torii.platform.formal.FormalPlatform for formal verification of Torii designs.
  • Added formal platform examples
  • Added Value.inc() and Value.dec() calls to help deal with the sig.eq(sig + 1) pattern that is all too common.
  • Added explicit mention of Python 3.13 support.
  • Added structured records to allow for ease of typing torii.hdl.rec.Record's

Changed

  • Torii Elaboratable's now have a new optional formal function for use in formal verification with the Torii FormalPlatform.
  • Torii platforms now have get_override_list and get_override_int overrides for platform template support.
  • Torii platforms now have optional description and pretty_name properties.
  • Use of read_ilang has been replaced with read_rtlil in the Gowin platform, which was the only platform that used the deprecated Yosys command.

Deprecated

  • Moved the contents of torii.asserts to torii.lib.formal.

Removed

  • Removed deprecated log2_int
  • Removed deprecated torii.platform.vendor.intel Module
  • Removed deprecated parameter run_script from BuildPlan.execute_local

Fixed

  • Fixed huge chunk of typing, lots to do but should improve useability and ergonomics.
  • Fixed a resource layout issue within the torii.platform.resources.interface.HyperBusResource

0.6.2

Fixed

  • Fixed a bug in the definition of the QSPIResource in torii.platform.resources.memory, again...

0.6.1

Fixed

  • Fixed a bug in the definition of the QSPIResource in torii.platform.resources.memory

0.6.0

Added

  • Rough initial type annotations to torii.hdl.mem
  • Added the ability to specify tar for the torii.build.run.BuildPlan.archive call.
  • Added check inside Records to ensure they're properly constructed prior to accessing their fields.
  • Added the ability to override a Value's operators.
  • Added the ability to put non-signals into write_vcd's traces parameter.
  • Added name disambiguation for traced signals where they share the same name.
  • Added ValueLike and ShapeLike, mainly for additional typing and instance checking assistance.
  • Added the ability for Cat and Slice, statements to be cast as a Const value.
  • Added #!/bin/sh to the top of build shell scripts.
  • Added BuildPlan.extract to extract files from the build plan without having to run it, this replaces the functionality that occurred when BuildPlan.execute_local was passed with run_script = False.
  • Added BuildPlan.execute_docker to allow for invoking a build inside a specified docker container.
  • Added log2_ceil and log2_exact to replace log2_int with the False and True params respectively.
  • ShapeCastable objects can now be const initialized.

Changed

  • Improved Oscillator frequency diagnostics for torii.vendor.GowinPlatform.
  • Fixed torii.lib.fifo FIFOs to use the new memory semantics correctly.
  • torii.lib.soc.csr Multiplexer shadow registers have been re-designed.
  • Bumped minimum Python version from 3.9 to 3.10.
  • Renamed IntelPlatform to AlteraPlatform.
  • FWFT mode is default for all FIFOs now.
  • Bumped the minimum version of Yosys to 0.30.
  • Empty Case blocks now throw an exception when being used in place of a Default block
  • Behavioral change warning in empty Value.matches() where currently it returns Const(1) but will return Const(0) in the future.
  • We now only close a VCD or GTKW file in the simulator if it was opened by the simulator.
  • Build shell scripts will now be marked as executable on unix-like hosts.
  • Instance objects know collect source location information.
  • Memories have been turned into a first-class IR representation.
  • Out-of-range rests now error, not just warn.
  • A warning is now generated when a Case() falls after a Default(), and an error is raised when there are multiple Default()'s in a Switch
  • Shape casting a range(1) now resolves to an unsigned(0)

Deprecated

  • Deprecated torii.vendor.intel and torii.vendor.intel.IntelPlatform in favor of torii.vendor.altera and torii.vendor.altera.AlteraPlatform.
  • Deprecated execute_local()'s run_script param in favor of extract
  • Deprecated use of log2_int in favor of log2_ceil and log2_exact where appropriate.

Removed

  • Removed deprecated torii.platform.vendor.lattice_* modules.
  • Removed deprecated Repl call in favor of Value.replicate.
  • Removed set -x if the verbose param is set for platform builds.
  • Removed the last little bit of $verilog_initial_trigger traces.
  • Removed sub-classing of AnyValue and Property

Fixed

  • Fixed ToriiTestCase.settle to handle "0" count settles.
  • Fixed torii.hdl.dsl.Module's constructor to properly use super() rather than a parent class name call.
  • Load of typing annotation fixes.
  • Cleaned up a load of blank asserts, they should now have more clear error diagnostics.
  • Fixed a handful of typos throughout the library and documentation.
  • Fixed tracer calls for Python 3.13
  • Fixed Array not being indexable by a ValueCastable.
  • Fixed ValueCastable not being accepted as a simulation coroutine command.
  • Fixed handling of redundant Case branches.
  • Fixed Value.shift_right and Value.as_signed edge cases.
  • Fixed using 0-width Switch's with integer keys.
  • Trying to use the Python in operator on a Value now raises a sensible error.
  • When indexing or slicing a Value with another Value, it now raises an error and suggests to use Value.bit_select or Value.word_select instead.
  • Fixed simulation look when process catches an injected exception.

0.5.0

Added

  • Added some minor comments to the torii.sim.core module about the function of some of the objects.
  • Added torii.vendor.gowin.GowinPlatform.
  • Added support for Xilinx Atrix UltraScale+ part numbers.
  • Added env argument to BuildPlan.execute_local.
  • Allowed removing src attributes on RTLIL output.

Changed

  • Moved the Lattice platform defs into their own submodule torii.platform.vendor.lattice.
  • Replaced the distutils.ccompiler with the setuptools.command.build_ext module for torii.tools.cxx.
  • Disabled the warning emitted on ~True/~False when using it as a value in Torii in Python versions older than 3.12.
  • Relaxed the PyVCD dependency version to now also include 0.5.
  • Ensured Value.__abs__ now returns unsigned Shape.
  • Restructured the torii.lib.coding module away from being a monolithic file.
  • Prohibited absolute paths in BuildPlan.add_file.
  • Added lowering of Memory's directly to RTLIL $mem_v2 cells.
  • Ensured Part offsets are always unsigned.
  • Disallowed signed(0) values.

Deprecated

  • Old Lattice platform names have been deprecated in favor of the new platform location.
  • Deprecated Repl in favor of Value.replicate.

Removed

  • Removed the torii.cli module
  • Removed the remote-build category from the setup.py extra_requires due to removal of remote builds.

Fixed

  • Fixed an issue where the IrDAResource was not imported into the torii.platform.resources __init__.py
  • Fixed the torii.utils.tracer module to properly handle STORE_DEREF and EXTENDED_ARGs.
  • Fixed signed value normalization inside Const.
  • Fixed issue with Value.rotate_left/Value.rotate_right on 0-width values.
  • Fixed a semantic issue with range handling inside Shape.cast.
  • Fixed an off-by-one issue in the validation of Slicees.
  • Fixed the signedness of the resulting Shape when doing subtraction.
  • Fixed handling of ValueKey.__eq__.
  • Fixed source-location attribution for Slicees.
  • Fixed the order of when Value.cast should have been called in the Part and Slice constructors.
  • Fixed a warning on python 3.12 with the pyrtl simulator warning about bitwise negations on booleans.
  • Fixed a test case failure that would only occur on Windows due to it's backwards path separator.
  • Ensured Value.cast is inside Part's and Slices constructor.
  • Fixed test case that was having issues on Windows paths.
  • Removed translation of empty subfragments as that would cause unintentional blackboxing on Vivado and Yosys.

0.4.5

Added

  • Added -norom and -proc options to verilog generation if available in Yosys.
  • Added a small tutorial on using platform.add_file with Instance for referencing external modules.
  • Added conversion helpers to/from picoseconds.

Changed

  • Updated the minimum Yosys version to 0.15.
  • Minor typing updates.
  • Value.matches now returns Const(1) when no value is supplied.
  • Platform.build now allows for lists of strings to be passed for argument.
  • Invocations of read_ilang in Yosys scripts has been replaced with read_rtlil as read_ilang has been deprecated for a while now.
  • Replaced sim_case in ToriiTestCase with ToriiTestCase.simulation and added two attributes for defining the simulation domain ToriiTestCase.comb_domain and ToriiTestCase.sync_domain, the latter of which takes a domain = param to specify which synchronous domain it is using.
  • The default platform in ToriiTestCase has been replaced with None, rather than MockPlatform
  • Gated the initialization of the ToriiTestCase dut behind a check to prevent non-simulating tests, and tests that don't use the DUT from exploding.
  • Made the connectors property on Platform's optional, it now currently defaults to an empty list.
  • Updated rich dependency version from ~=12.6.0 to >=12.6.0

Deprecated

  • Deprecated the current torii.cli.* methods in anticipation of replacing them.

Removed

  • Removed remote SSH build support
  • Removed Value.__hash__

Fixed

  • Corrected how environment variables were extracted making them more consistent.
  • Fixed the ToriiTestCase so it's now properly functional
  • Clarified the usage of Cat in the language documentation, noting that it can take more than two arguments for concatenation.
  • Added a warning on potential off-by-one errors when invoking Signal with a range and having the reset value be the same as the end of the range.

0.4.4

Added

  • Handle Repl's in ValueKey
  • Allow for IntEnum's in Value.cast
  • Added proper testing for the torii.util.units module.
  • Added proper testing for the torii.util.string module.
  • Added support for name = in property checks, such as Assert, etc.
  • Added exports for convert and convert_fragment for rtlil, cxxrtl, and verilog into the root torii.back module.

Changed

  • Updated the copyright years in the license file.
  • Hardened the RTLIL backend against generating Yosys reserved port names.
  • Removed warning on IntEnum's in Cat (meow)
  • Ensured that files are always are written with Unix LF line endings.
  • Renamed the _toolchain module to tools.
  • Moved the tool_env_var from torii.tools into torii.util.string.
  • Renamed nox session names for flake8 and mypy into lint and typecheck
  • Renamed nox session names for build_dists and upload_dist into build and upload
  • Added a default help formatter for the built-in CLI stub.

Deprecated

  • Deprecated the remote SSH builds.
  • Deprecated passing non Elaboratable or Fragment objects to Fragment.get.

Removed

  • Removed Shape and tuple casts and comparisons.
  • Removed UserValue and associated machinery.
  • Removed default ports from rtlil_convert and verilog_convert.
  • Removed step from core.Simulator in favor of advance.
  • Removed support for the AMARANTH_ENV_* environment variables.
  • Removed the _BuiltinYosys proxy object and associated bits.

Fixed

  • Fixed an issue with the TORII_ environment variables not being recognized.
  • Fixed missing f-strings in the cxxrtl, ast, and intel modules.
  • Fixed an issue in the LatticeECP5 platform that would have caused broken SystemVerilog inclusions.
  • Fixed a bunch of miscellaneous spelling things.
  • Fixed an issue where src attributes would be added to generated RTLIL even if the emit_src attribute was False.
  • Fixed an issue where the tracer would encounter an unknown opcode and would return None.
  • Fixed the iec_size utility method to behave a bit better with strange sizes.
  • Fixed the tcl_quote string method that would leave un-escaped "'s causing the TCL script to fail due to invalid syntax.
  • Fixed an issue in the LatticeICE40 platform where the IceStorm toolchain environment variable was not being normalized properly.

0.4.3

Fixed

  • Fixed a small issue with the newline changes that caused synthesis to fail
  • Fixed up the ULPI instance to properly handle the clk signal and constrain it

0.4.2

Fixed

  • Fixed the project URLs for the documentation and package.
  • Fixed some minor issues in the install documentation.
  • Fixed the line endings on generated *nix build scripts.
  • Fixed an issue where the built-in test harness was broken with writing VCDs.

0.4.1

Fixed

  • Fixed issue with invoke_tool not emitting the environment variable properly

0.4.0

Added

  • Folded in stdio library components.
  • Folded in soc library components.
  • Folded in resources from torii-boards into the torii.platform.resources module.
  • Added flake8 configuration file.
  • Added mypy configuration file.
  • Added Code Of Conduct.
  • Added a noxfile.py for use with nox.
  • Added an updated python unittest wrapper for use with Torii.
  • Added string utility module.
  • Added units utility module.
  • Added dependency rich.
  • Added CANResource to torii.platform.resources.interface.
  • Added ice40warmboot to torii.lib.vendor.lattice.ice40.
  • Added empty torii.lib.vendor.xilinx module.
  • Added VGADACResource to torii.platform.resources.display.
  • Added preliminary support for the yosys+nextpnr-xilinx flow on the Xilinx platform.
  • Added Changelog file.
  • Added QSPIFlashResource to torii.platform.resources.memory.
  • Added JTAGResource to torii.platform.resources.interface.
  • Added EthernetResource to torii.platform.resources.interface.

Changed

  • Refactored the documentation.
  • Migrated string escape functions from the TemplatedPlatform into the new strings utility module.
  • Moved log2_int and bits_for into the new units utility module.
  • Moved vendor modules into torii.platform.vendor.
  • Replaced deprecated abstractproperties with property/abstractmethod combo.
  • Moved the tracer module into torii.util.
  • Moved the _unused module into torii.hdl.

Removed

  • Removed the nMigen compatibility layer.
  • Removed the migen compatibility layer.
  • Removed the compatibility tests.
  • Removed the RPC server.
  • Removed the old FHDL test case.
  • Removed the tuple case from Shape.
  • Removed the warning from rtlil.convert and verilog.convert about implicit ports.
  • Removed the _ignore_deprecated decorator.
  • Removed the C alias for Const.

Fixed

  • Fixed the package name.
  • Fixed the package authors.
  • Fixed the package trove classifiers.
  • Fixed all flake8 warnings on the entire codebase.
  • Fixed indentation.
  • Fixed docstring formatting.

0.1.0 - 0.3.0

No changelog is provided for these versions as they are all older tagged releases of Amaranth from before the fork.