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[HW] Refactor the MASKU #376

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[HW] Refactor the MASKU #376

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@mp-17 mp-17 commented Nov 25, 2024

General refactoring of the MASKU.

Changelog

Fixed

  • Fix legality check for allowed registers in dispatcher
  • Remove a couple of latches

Added

  • Extend the riscv-tests MASKU-related tests

Changed

  • Refactor the MASKU
  • The MASKU always receives balanced payloads from the lanes
  • Remove FPU support for opqueues that do not need it

Checklist

  • Automated tests pass
  • Changelog updated
  • Code style guideline is observed

Comment: the lanes are not synchronized when sending operands.
Therefore, the spill regs need to handshake the lanes individually.
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