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CHANGELOG.md

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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.

In this sense, we interpret the "Public API" of a hardware module as its port/parameter list. Versions of the IP in the same major relase are "pin-compatible" with each other. Minor relases are permitted to add new parameters as long as their default bindings ensure backwards compatibility.

[0.8.0] - 2023-06-02

Added

  • Add external reg enable to slices (#89)
  • Integrate new 32b divider (#79)

Changed

  • CHANGELOG.md, README.md and docs/README.md
  • Moved @lucabertaccini to Authors
  • Added Pasquale Davide Schiavone and Pascal Gouedo as maintainers

Fixed

  • multifmt slice uses wrong FP width for third operand (#86)
  • Fix DivSqrt lanes synchronization (#90)

[0.7.0] - 2023-03-20

Added

  • Citation file CITATION.cff
  • Add support for RISC-V compliant classify in vectorial mode when the vector element width is at least 10 bits
  • Add mask input signal to mask exceptions from inactive SIMD elements
  • Add support for rounding toward odd (RISC-V V 1.0 compliant)

Changed

  • Code ownership to @lucabertaccini
  • Fix licence headers

Fixed

  • Fix de-synchronization among vectorial lanes during variable-latency operations (fdiv, fsqrt)
  • Correct sign for RDN in floating point multiplications (#54, #63, #728)
  • Fix shift amount width in fma and fma_multi (#66)
  • Fix f2i cast edge cases (#64)

[0.6.6] - 2021-04-19

Changed

  • [common_cells] Bump common cells version (#44)

[0.6.5] - 2020-11-06

Fixed

  • [common_cells] Bump to fix compilation order

[0.6.4] - 2020-10-05

Fixed

  • Updated dependencies for Bender and IPApproX (#37)
  • [fpu_div_sqrt_mvp] Bump for formal version number

[0.6.3] - 2020-10-02

Fixed

  • Fix undriven signals for inactive case in fpnew_fma_multi
  • Fix potentially uncovered case item in fpnew_pkg
  • Undriven unused portions of signals in multi-format slices
  • Undriven portions of the result for non-divisible unit width & format width in multi-format slices
  • [fpu_div_sqrt_mvp] Bumped to fix signalling for underflows

[0.6.2] - 2020-06-02

Changed

  • Number of pipeline registers in multi-format units is the maximum of all contained formats instead of the first format marked MERGED

Fixed

  • Typo in changelog
  • Missing type cast breaking simulation in VCS (#24)

[0.6.1] - 2019-07-10

Fixed

  • A bug where the div/sqrt unit could lose operations in flight

[0.6.0] - 2019-07-04

Changed

  • Pipelines are generated in the datapath modules instead of separate instances

Fixed

  • Don't care assignments to structs have been expanded for better tool support (#14)
  • Undriven busy signal in output pipeline bypass
  • Typo in the documentation about the multiply operation
  • Generation of merged slices when the first package format is disabled
  • Potential simulation/synthesis mismatch of the UF flag
  • Various linter warnings
  • Documentation to reflect on updated pipeline distribution order
  • [fpu_div_sqrt_mvp] Bumped to fix linter warnings
  • [Bender] Fixed dependencies for Bender (#15)

Removed

  • Currently unused modules: fpnew_pipe*, fpnew_{f2i,f2f,i2f}_cast

[0.5.6] - 2019-06-12

Changed

  • Don't care logic value can be changed from the package now
  • Default pipeline config in the package is now BEFORE

Fixed

  • Don't care values are assigned '1 instead of 'X by default

[0.5.5] - 2019-06-02

Fixed

  • UF flag handling according to IEEE754-2008 (#11)

[0.5.4] - 2019-06-02

Added

  • Documentation about multi-format operations
  • Extended pipelining description slightly
  • Extended semantic versioning declaration in changelog

Changed

  • Updated diagrams in architecture documentation

Fixed

  • [common_cells] Bumped to fix src_files.yml bugs
  • [fpu_div_sqrt_mvp] Bumped to fix linter warnings

[0.5.3] - 2019-05-31

Fixed

  • ips_list.yml entry for updated common_cells

[0.5.2] - 2019-05-31

Fixed

  • Internal pipeline bypass in cast unit

[0.5.1] - 2019-05-27

Fixed

  • Include path for common_cells in src_files.yml

[0.5.0] - 2019-05-27

Added

  • The FPU :)
  • Initial Documentation

Changed

  • "Restarted" the changelog as the old one was stale

Fixed

  • Handling of exception flags for infinity operands