binutils Newspaper
OCTOBER 6, 2026
binutils — Under Review

RISC-V: Add support for XXTVarith and XXTVcoder extensions

Follow-up on a previous patch to add RISC-V XXTVarith and XXTVcoder extensions.

Bohan Lei is pinging the mailing list for a review of a previously submitted patch that adds support for the XXTVarith and XXTVcoder extensions to the RISC-V architecture in binutils. A link to the original patch on patchwork is provided.

In the Thread 1 participant
  1. Bohan Lei <garthlei@linux.alibaba.com> proposer

    Follows up on a previous patch to request a review for RISC-V XXTVarith and XXTVcoder extensions.

    “Ping. Could anyone help review the vendor-extension patch?”

In Details

This is a follow-up message regarding a patch for the binutils project, specifically targeting the RISC-V architecture. The patch proposes adding support for two new extensions: XXTVarith and XXTVcoder. The author is seeking a review of this vendor-extension patch.

For Context
RISC-V
An open-standard instruction set architecture (ISA) based on reduced instruction set computer (RISC) principles.
XXTVarith
A proposed or existing extension for the RISC-V architecture, likely related to variable-length operations or arithmetic.
XXTVcoder
A proposed or existing extension for the RISC-V architecture, possibly related to variable-length encoding or vector operations.
vendor extension
Custom instructions or features added by a specific hardware vendor to a standard architecture, such as RISC-V.
Filed Under: binutilsrisc-vassemblyextensions