From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.remcomp.fr (mail.remcomp.fr [144.76.29.216]) by sourceware.org (Postfix) with ESMTP id 6E9FD3858404 for ; Fri, 9 Feb 2024 17:03:52 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6E9FD3858404 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=jacob.remcomp.fr Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=jacob.remcomp.fr ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 6E9FD3858404 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=144.76.29.216 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707498234; cv=none; b=OD5FRLoUndPJ7iNDVQT63AJ6Mu1rgMj2NSY1Yp6X2UPTaVW/ndY6WiRWm1kPT0eGdFrhTEXilCPV+UAXtlHgezcxbNciT6WOyoDM5jIYv9QWNKy9+G9u6gvcMuKAunokH3vBTSumpAjnUEdDsNH+CFx3GtnucyXw8QkvE62K02g= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707498234; c=relaxed/simple; bh=mRUtUBIpHhVTANdFGEoXKFwQjpVJ/yxnfJQBYB1mJ+Y=; h=From:Mime-Version:Subject:Message-Id:Date:To; b=PimT6oozsBvbo6x24SFLfmZOEgLHkgBbrcXVwjjcHINN/FxScSBKN4tQCJSj+EBVOiXaWxFI5tcHugfaX7d/VnDV8bo6aTPRZKOlpHjmiWV8DRu0Zbq7SJMLHU33In/CmFdW02sQGz/A/Sl3ebjWby5rzG2DLXa5ZDMg2y9GfRs= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from smtpclient.apple (lfbn-idf3-1-253-13.w90-22.abo.wanadoo.fr [90.22.252.13]) (Authenticated sender: jacob) by mail.remcomp.fr (Postfix) with ESMTPSA id 70F5A4006C for ; Fri, 9 Feb 2024 17:03:51 +0000 (UTC) From: jacob navia Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.300.61.1.2\)) Subject: Defined illegal instruction Message-Id: <4EF79A76-0C4A-492C-95E5-F12B338F637D@jacob.remcomp.fr> Date: Fri, 9 Feb 2024 18:03:40 +0100 To: binutils@sourceware.org X-Mailer: Apple Mail (2.3774.300.61.1.2) X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: The riscv processor defines an illegal instruction (all zeroes). I do = not find the mnemonic used by gas for this. As far as I remember, the = x86 also has a defined illegal instruction. I find an instruction called =C2=AB unimp =C2=BB . It generates = something else (an attempt to write into a read only special register). = Is that the =C2=AB defined illegal instruction =C2=BB for risk? Thanks for any answers Jacob