lowRISC / lowRISC/ibex

Evaluate the feasibility of parameterising ibex by XLEN

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#64 4 comments 0 reactions 0 assignees View on GitHub

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Component:RTL Type:Enhancement
Dominant language
SystemVerilog
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Avg merge
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Merged PRs (30d)
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Description

It could be interesting to support RV64I as well as RV32I (imagine small helper cores, with access to the same address space as a larger 64-bit application cores). Before leaping into doing this, someone needs to do the ground work to see how disruptive it might be, so we can evaluate the potential maintenance / readability costs vs the benefits of supporting an RV64I configuration.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or entry points are named. Survey the repository for RV32I and XLEN assumptions, then document how disruptive RV64I parameterisation would be, including maintenance and readability costs; the work is done when that feasibility assessment supports a clear go/no-go decision.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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