hsivonen / hsivonen/encoding_rs

Make simd-accel work with big-endian targets

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Dominant language
Rust
Stars
464
Forks
70
Avg merge
2d 4h
Merged PRs (30d)
2

Description

Currently, the simd-accel feature only works with little-endian targets.

Figure out what changes are needed to make it work semantically (even if not yet at optimal perf) on big-endian targets. It probably makes sense to do this on PowerPC (32-bit or 64-bit) QEMU.

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

Start by locating the simd-accel implementation and its assumptions about target endianness. Use a 32-bit or 64-bit PowerPC target under QEMU to exercise the feature; done means its behavior is semantically correct on big-endian targets, even without optimal performance.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
internationalization
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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