MIPT-V / MIPT-MIPS 2021

Pipeline Visualization Tool by BSUIR students Alex Kulsha and Andrei Karpyza under Anton Lechanka supervising.

RISC-V bit manipulation instructions

• ror by Vladimir Graudt
• gorci by Alexey Shcherbakov
• max and maxu by Anton Okley
• rori by Egor Titov
• sbinv by Eugene Naydanov
• shfl by Mihail Fedorov
• min and minu by Vasilii Zaitsev
• sloi and sroi by Ravil Zakiryanov
• packu by Ivan Burtakov

Performance Simulation

• #1448: wrongpath code prefetching by Vladislav Zhuravski

Bug fixes

• #1257 follow up: pipeline must be flushed only once per cycle.
• RISC-V bfp instruction fixed according to 0.92 specification.

Testing infrastructure upgrades

• #512: unit tests for Branch module and infrastructure to test more modules by Vladimir Graudt
• #1409, #1410: clean up of RISC-V ALU and testing code by Vladimir Graudt
• C++20
• Catch 2.13.6
• GDB 10.2
• ELFIO 3.8

Switched to Github Actions from Travis CI

External PRs

• LGTM: github/codeql#5709
• LLVM: 46235
• RISC-V: riscv/riscv-opcodes#53