From: lkcl Date: Thu, 25 Mar 2021 15:10:57 +0000 (+0000) Subject: (no commit message) X-Git-Tag: DRAFT_SVP64_0_1~1149 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e43e436d26b2b4d24a005b88a21216b8cb2fa92f;p=libreriscv.git --- diff --git a/openpower/ISA_WG/Board_letter_26mar2021.mdwn b/openpower/ISA_WG/Board_letter_26mar2021.mdwn index bd7a6628f..837748b25 100644 --- a/openpower/ISA_WG/Board_letter_26mar2021.mdwn +++ b/openpower/ISA_WG/Board_letter_26mar2021.mdwn @@ -26,7 +26,7 @@ As you know the LibreSOC team have been working for over 3 years on a massive co https://www.sigarch.org/simd-instructions-considered-harmful/ -Normally, such huge ISA development efforts would be instigated, organised and funded through either Academia or an extremely large Corporation, or a Consortium combining multiple such entities. It is therefore without precedent across the Computing Industry for something of this magnitude of effort to come not only from a Libre background but from a Libre background that is funded by a Charitable Foundation with a mandate to fund "Works for the Public Good". +Normally, such huge ISA development efforts would be instigated, organised and funded through either Academia or an extremely large Corporation, or a Consortium combining multiple such entities. It is therefore without precedent across the Computing Industry for something of this magnitude of effort to come not only from *individuals* with a completely independent non-affiliated Libre background but from a Libre background that is funded by a Charitable Foundation with a mandate to only fund "Works for the Public Good" (NLnet). From reading the PowerISA v3.0C sections we have learned and taken on board that a "Sandbox" opcode exists (EXT22) which is intended for "small private extensions" to the OpenPOWER ISA. Our Bitmanipulation Extension alone, needed for Audio/Video and cryptographic workloads, struggles to fit into that space, and we have not yet added Custom 3D opcodes or the IEEE754 Transcendentals (SIN, COS).