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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.

Unreleased

0.9.9 - 2021-09-01

Added

  • Enable GitHub Actions for macos-11 runners (#96)
  • Introduce a yosys flow for ULX3S (#87)
  • Build on macOS Big Sur (#85)

Changed

  • Prefer sdl2-config over pkg-config (#82)
  • Run apt-get update before installing packages from APT (#84)

Fixed

  • Address collected minor issues (#81)
  • Address some Verilog lints and weaknesses (#94)
  • Collected ctest-provoked fixes (#95)
  • Fix crash in SDLVGA on macOS Big Sur 11.2 (#83)
  • Introduce collected hardware changes for ulx3s (#88)

Removed

  • Remove emscripten support (#92)
  • Remove Xilinx support (#86)

0.9.8 - 2021-01-01

Added

  • Enabled many compiler warnings under Clang and GCC
  • Introduced a stream-based abstraction layer for filesystem operations
  • Defined the overshifting behavior for the @ operator
  • Defined the tenyr assembly grammar in ABNF (#60)
  • Set up continuous integration using GitHub Actions (#66, #67, #68, #69, #70, #71)

Changed

  • Updated supported emscripten version to 1.38.46
  • Reimplemented JIT using GNU lightning
  • Stopped relying on customizations to wb_intercon for tenyr's Verilog implementation
  • Addressed various lint warnings found in tenyr's Verilog
  • Tightened lexer rules for numeric constants (#56)
  • Cleaned up OS overrides (#61)
  • Stopped removing output files (in a racy way) when failure occurs (#63)

Fixed

  • Corrected a long-standing tsim bug when right-shifting by more than 31 bits
  • Corrected tsim bugs manifesting on big-endian host machines
  • Corrected silent sign conversions, adhering to -Werror=sign-conversion
  • Prevented disassembly from obj from always exiting non-zero (#59)
  • Prevented a buffer overrun when too many plugins are specified (#64)
  • Fixed some miscellaneous bugs while improving test coverage (#63)
    • Corrected incorrect pointer cast in VPI
    • Propagate errors better instead of swallowing them inadvertently

Removed

  • Stopped suggesting Gitter as a chat option
  • Stopped using coveralls.io for code coverage reporting
  • Dropped raw output format
  • Dropped explicit support for backslashes as path component separators (#43)
  • Removed support for various deprecated and obsolete functionalities (#47)
    • Dropped support for C-style and C++-style comments in .tas files
    • Removed broken Forth implementation
    • Dropped support for deprecated v0 and v1 object formats
    • Remove unused @= syntax sugar
    • Removed web demo
    • Removed bitrotten support for Quartus and Lattice builds
    • Dropped unused submodule for broken lcc port
  • Stopped using C preprocessor on .tas.cpp files (#45)
  • Removed Travis-CI support (#72)
  • Removed undocumented settings that allowed continuing after memory errors (#63)
  • Removed unused .option support

0.9.7 - 2019-07-25

Added

  • support for @symbol - .Llocal expressions
  • a nominal, arbitrary limit of 2048 bytes on symbol lengths in version 2 objects (to promote runtime memory safety)

Changed

  • parser supports bison 3.4.1 by replacing deprecated bison directives

Fixed

  • memory leaks and misuse (e.g. read after free), mostly introduced by version 2 objects

0.9.6 - 2018-04-29

Added

  • version 2 objects supporting newly-unlimited symbol lengths

Changed

  • improved emscripten support

0.9.5 - 2017-11-16

Added

  • a ~/.tsimrc file (à la --options=file) that is loaded by a new default recipe
  • a new BRAM-optimized 10x15 font and associated build tools
  • @+var and @=var shorthand forms
  • tests for op types 0, 1, and 2
  • new Verilog module for VGA output

Changed

  • running recipes in the order they are specified, instead of reverse order
  • allowing simulations to continue in the face of device errors
  • restoring serial input functionality in a limited way
  • changing VGA output to be 64x32 text columns (down from 80x40)

Fixed

  • correcting reported column numbers for syntax errors

Removed

  • third-party VHDL for VGA

0.9.4 - 2017-05-04

Added

  • build date to --version output
  • insertion of missing trailing slash that was causing resource-loading to fail
  • first-class emscripten build (make PLATFORM=emscripten)

Changed

  • optimised sparseram somewhat
  • drop ancient 24-bit address space stricture

Removed

  • uses of unportable RTLD_DEFAULT
  • uses of little-used assert()
  • obsolescent SPI simulated device