From nobody Tue Feb 10 05:45:49 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of _spf.google.com designates 209.85.128.53 as permitted sender) client-ip=209.85.128.53; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-f53.google.com; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 209.85.128.53 as permitted sender) smtp.mailfrom=philippe.mathieu.daude@gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1625233050; cv=none; d=zohomail.com; s=zohoarc; b=BepBs5h0Xk5smhmWFr7WgvBTcQYSBUyNmePI9EkW554c7l9xbb/jI7nAzAS7WfA+ALs+hh0qTEVJq8egZJog0plhdow1Prx6eQsOECXxNFANvRkT96AdQ1r9ySalEecHdQXdFkK/3wqXKKBOT3iHcVky5uNkDYXFW23aHOQgtmg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1625233050; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Sender:Subject:To; bh=erflfoQZg1zmJhaY5+bBLo3ktzzY4R/YAAD7gOAMH4Y=; b=WO0z/AZY0ZqpDVq/1y6pfjYw60nDouF3xDV1AHqsqzfawm2xT/Z0ZRYOilcNILnedEgHeDqbbm/Hq6GDiFgpB/OmDRpnCnAL3CRL+CMQtfNuow481Gl40sXStURwpmXmoMcfB2rVZ5euNHQsKskFQ0o6mScYTe0aleAvu9bTlTM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 209.85.128.53 as permitted sender) smtp.mailfrom=philippe.mathieu.daude@gmail.com Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) by mx.zohomail.com with SMTPS id 1625233050307990.7824480506389; Fri, 2 Jul 2021 06:37:30 -0700 (PDT) Received: by mail-wm1-f53.google.com with SMTP id r9-20020a7bc0890000b02901f347b31d55so6236869wmh.2 for ; Fri, 02 Jul 2021 06:37:29 -0700 (PDT) Return-Path: Return-Path: Received: from x1w.Ascou-CH1 (pop.92-184-108-23.mobile.abo.orange.fr. [92.184.108.23]) by smtp.gmail.com with ESMTPSA id y8sm3035642wrr.76.2021.07.02.06.37.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jul 2021 06:37:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=erflfoQZg1zmJhaY5+bBLo3ktzzY4R/YAAD7gOAMH4Y=; b=ehIuFKNCoZxrPpqeDb3mouNygSzBqn0qXPpThpiERIHsd3HKnhfo2znWjZGM6E3luU WFoDUmy5nrIPhGVxouOvx56q19qO863LtpqilrqTLMKHol0aADd2fpb00jGW7VD8TEll xzsXzQVwgFleibqtQSSHQBj9Ysivc4esZ30BNB4XaZG6vK6fvsTlOQ/t6fsfnY1MZWCr 47U6V9Ve5RJvoUJQg5b73iUB7yud3RYeNr/95XIw969SYA0c5flwbOaIq5aYQukAXRMR puFLj7pEuFd3wesqnQfDssfctbe9DhYbIA8f9SgzJQvGjFtSViD8urJ0/9qpkVg+zW6Y RSWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=erflfoQZg1zmJhaY5+bBLo3ktzzY4R/YAAD7gOAMH4Y=; b=KZslWVvvtXWJjuGzMfES8JdM8K2ka5UipSi2Vh7lKT4xvHHz++l/6qKXud2KJ/9XR1 1smXn8eXNXpw9/180clU52Ob7w2D46d4eA0rK9PpaRPlUx15uzRiTrkSHKn/Sf+dmaQK FeCG7eMpsG5nXn2VyBoQQO88V6NQmzQFN2qQ04YQumfO4dbswJfRsHi4l/XNyof2oAXB uj+LgNqmEcAI13XUDEEa6J0i9S5sj5gwv0jbuiod8woTPTUCQTGK6CW1J8EvcxrRiqNu 5yF1+5bDriJRsZfXSRb8y8TKO+B5niLWi3266Fyl6R+G0HgzhPuGihTffoUdXeSF5V4G C8Hw== X-Gm-Message-State: AOAM532iofiy8x7gMlMzjx9zTZHjq3MOmjspjbW0mtzFX35zxF9dM+8J tohr8158WbjwKNiDKPgjmBQ= X-Google-Smtp-Source: ABdhPJywG/3yi7DbCLL+EsFEAtNWK1rU6OXUhDsCWML3RrkCqKBosySxzOxGB6MTJObLMk8DABRdIA== X-Received: by 2002:a1c:f206:: with SMTP id s6mr5471046wmc.102.1625233048549; Fri, 02 Jul 2021 06:37:28 -0700 (PDT) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Mark Cave-Ayland , Finn Thain , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL 15/18] qemu/bitops.h: add bitrev8 implementation Date: Fri, 2 Jul 2021 15:35:54 +0200 Message-Id: <20210702133557.60317-16-f4bug@amsat.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210702133557.60317-1-f4bug@amsat.org> References: <20210702133557.60317-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1625233052490100001 From: Mark Cave-Ayland This will be required for an upcoming checksum calculation. Signed-off-by: Mark Cave-Ayland Tested-by: Finn Thain Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20210625065401.30170-7-mark.cave-ayland@ilande.co.uk> Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- include/qemu/bitops.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/include/qemu/bitops.h b/include/qemu/bitops.h index 03213ce952c..110c56e0993 100644 --- a/include/qemu/bitops.h +++ b/include/qemu/bitops.h @@ -618,4 +618,26 @@ static inline uint64_t half_unshuffle64(uint64_t x) return x; } =20 +/** + * bitrev8: + * @x: 8-bit value to be reversed + * + * Given an input value with bits:: + * + * ABCDEFGH + * + * return the value with its bits reversed from left to right:: + * + * HGFEDCBA + * + * Returns: the bit-reversed value. + */ +static inline uint8_t bitrev8(uint8_t x) +{ + x =3D ((x >> 1) & 0x55) | ((x << 1) & 0xaa); + x =3D ((x >> 2) & 0x33) | ((x << 2) & 0xcc); + x =3D (x >> 4) | (x << 4) ; + return x; +} + #endif --=20 2.31.1