Re: Decimal: Formal review begins.

From: Matt Borland (matt_at_[hidden])
Date: 2025-01-16 17:23:14

On Thu, Jan 16, 2025 at 12:10, Marc Glisse <marc.glisse_at_[hidden]> wrote:  On Thu, 16 Jan 2025, Matt Borland wrote:

> Machines with a decimal floating point unit are rare, and we have no access to one in order to make interoperability work.

I thought it was present on POWER systems (wikipedia says so), which you

can freely access on https://portal.cfarm.net/ for open source

development?

--
Marc Glisse
My understanding is POWER6 and 7 had it and 8+ don’t. IBM z9 and z10, and variants of SPARC64 also had support. Unless I’m missing a modern architecture that has support I don’t think investigating interoperability is worthwhile. The RISC-V spec has a section for a decimal floating point unit, but it’s just a placeholder.
Matt