introduction to isaspec

5 Oct 2022, 08:45
20m
201 (Opus Hall)

201

Opus Hall

30 S 10th Street, Minneapolis, MN
Talk (half slot, Wineconf and FOSS XR only) Main Track

Speaker

Rob Clark (Google)

Description

isaspec is tool to describe an instruction set in xml, and generate assembler and disassembler from that single description. It is currently used by freedreno (ir3), with a WIP MR for etnaviv conversion. It has a number of interesting features do deal with (at least slightly) weird instruction sets:

  • the base construct is a "bitset", which can be an entire instruction, or used as a field type in a larger bitset
  • flexible override and display mechanism, to deal with instructions where some bits have completely different meaning depending on other bit(s) in the instruction, to deal with mnemonics, etc
  • inheritance ("extends") to reduce duplication between groups of similar instructions
GSoC, EVoC or Outreachy No
Code of Conduct Yes
For which conference do you send the proposal? X.Org Developers Conference 2022

Primary author

Rob Clark (Google)

Presentation Materials

There are no materials yet.
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