From nobody Sun Jun 02 18:33:55 2024
X-Original-To: freebsd-riscv@mlmmj.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
	by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Vslqq2vcMz5Jjjl
	for <freebsd-riscv@mlmmj.nyi.freebsd.org>; Sun, 02 Jun 2024 18:33:59 +0000 (UTC)
	(envelope-from fuz@fuz.su)
Received: from fuz.su (fuz.su [IPv6:2001:41d0:8:e508::1])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256
	 client-signature RSA-PSS (2048 bits) client-digest SHA256)
	(Client CN "fuz.su", Issuer "fuz.su" (not verified))
	by mx1.freebsd.org (Postfix) with ESMTPS id 4Vslqq08G4z4TXN;
	Sun,  2 Jun 2024 18:33:58 +0000 (UTC)
	(envelope-from fuz@fuz.su)
Authentication-Results: mx1.freebsd.org;
	none
Received: from fuz.su (localhost [127.0.0.1])
	by fuz.su (8.18.1/8.18.1) with ESMTPS id 452IXuE1060074
	(version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO);
	Sun, 2 Jun 2024 20:33:56 +0200 (CEST)
	(envelope-from fuz@fuz.su)
Received: (from fuz@localhost)
	by fuz.su (8.18.1/8.18.1/Submit) id 452IXuBA060073;
	Sun, 2 Jun 2024 20:33:56 +0200 (CEST)
	(envelope-from fuz)
Date: Sun, 2 Jun 2024 20:33:55 +0200
From: Robert Clausecker <fuz@freebsd.org>
To: tuexen@freebsd.org
Cc: Robert Clausecker <fuz@freebsd.org>, freebsd-riscv@freebsd.org,
        Mitchell Horne <mhorne@freebsd.org>, strajabot@gmail.com
Subject: Re: Detecting the Zbb extension on riscv64
Message-ID: <Zly7E7MFMIuVqj02@fuz.su>
References: <ZlxZn5IQuQ-zqbwl@fuz.su>
 <5343E09C-017B-40B7-9349-01F1195BBB7C@freebsd.org>
 <Zlx2u52Xw7Aw6svM@fuz.su>
 <232F8595-5C7A-4ABD-961D-4779CED5A5D6@freebsd.org>
List-Id: FreeBSD on the RISC-V instruction set architecture <freebsd-riscv.freebsd.org>
List-Archive: https://lists.freebsd.org/archives/freebsd-riscv
List-Help: <mailto:riscv+help@freebsd.org>
List-Post: <mailto:riscv@freebsd.org>
List-Subscribe: <mailto:riscv+subscribe@freebsd.org>
List-Unsubscribe: <mailto:riscv+unsubscribe@freebsd.org>
X-BeenThere: freebsd-riscv@freebsd.org
Sender: owner-freebsd-riscv@FreeBSD.org
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <232F8595-5C7A-4ABD-961D-4779CED5A5D6@freebsd.org>
X-Spamd-Bar: ----
X-Rspamd-Pre-Result: action=no action;
	module=replies;
	Message is reply to one we originated
X-Spamd-Result: default: False [-4.00 / 15.00];
	REPLY(-4.00)[];
	ASN(0.00)[asn:16276, ipnet:2001:41d0::/32, country:FR]
X-Rspamd-Queue-Id: 4Vslqq08G4z4TXN

Hi Michael,

Am Sun, Jun 02, 2024 at 06:37:44PM +0200 schrieb tuexen@freebsd.org:
> > [U74 Core Complex Manual]: https://starfivetech.com/uploads/u74_core_complex_manual_21G1.pdf
> Thanks for the pointer. Zbr is not mentioned there...

It's not mentioned (though the next revision mentions Zba and Zbb), but
the instructions of Zba and Zbb are listed as being available.

Yours,
Robert Clausecker

-- 
()  ascii ribbon campaign - for an encoding-agnostic world
/\  - against html email  - against proprietary attachments