v0.4.0

Added

• Capability to enable and disable the traces with a CSR
• CPU model for MemPool in GCC to enable correct instruction scheduling
• Added GitHub CI flow

Changed

• Allow atomic extension to be enabled in GCC
• Replace atomic library with the corresponding builtins
• Compile all applications in the CI instead of only the ones executed
• Move Halide applications to their own directory
• Move linting scripts to scripts folder
• Move flat hardware dependencies to submodules
• Updated LLVM to version 12
• Updated Halide to version 12
• Run unit tests with Verilator
• Rename mempool mempool_cluster
• Restructure software folder

Fixed

• Stall cycle counting in the trace no longer misses stalls
• Remove unwanted latches in instruction cache
• Boot ROM address offset depends on the data width of the ROM