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[122.58.167.38]) by smtp.gmail.com with ESMTPSA id x8sm47297094pfa.173.2018.05.05.16.37.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 05 May 2018 16:37:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=lXTe0rk11UlaoolQNWbqKPLh0sxqHiqOOdSvoY5p97I=; b=fXQ7byHELBOvm8vlrvlZjJx2/mCp8t3/iyKAWgwe+FKplYZ6oCefaRcpNGvtUgRQ1Q sHxcWcKDVbRDc7dhsUk118i7/W8LpHyHogtWnr1lX4zSxbduxaG6hhIaFhxohVPKJLF2 QMoKy/0ZqqtDpx/d4a7FBlWtzedVOOSz5BoxTxKdhI9iQKNvuXwAd3oQZ96OQvSNZHPq 0M+DPEnY6LpVzudRqemrGK6DGTE3mvQzzqZSlOLB2ofKTmfb7r5BIwFOZO/tG84OGtex QXiz3Qfn/MFjG30F8h4qnkFs9EQcZAoxWbHPzU13Sg7zleFLE0lvG/GUvqUYyDE5iugC ESIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=lXTe0rk11UlaoolQNWbqKPLh0sxqHiqOOdSvoY5p97I=; b=cvt3LpROMS3DABCqIj/YyHNHReidtEKtZzWZ00MO+o9Nsz64Cox7J9DuDqaLpeJflu 66Tyom5FRkNe5wO0TQKrE5Df3i93bYXRV9L38S0HT7M5YYcfcEgB0qxBnhzxWnv87jFd kkuHzz8pVwH60xMHozZRD4cKy5BEwgAG+a5B7LPJ7RA+Rlk7kOAY0ObTC3okJ0JTrnjC tc6mJilOFEp/OrOsbOdqMWnSlFUqMYFJHmaufGe+KWP6+ijmtYkUn1AdJnj+Ql6D8/8z xlFDwAtIgXsdwMWGXdFXI/rrtGA0bXQCUnLyUX3WZJ6q6iNUpVK3l9wx0ScxHihT/cbR nC+Q== X-Gm-Message-State: ALQs6tBiWv2PswyBJOVHpJQGTpqItp4qiFyt7xuI/Er0tIK8YVIVAjxO 6vgHvEYZX02zp9BqYIW2kKa1poBIksw= X-Google-Smtp-Source: AB8JxZqcGMLppS/4BD1sH/iynwO8MltRA4NNbNq+04ryrJfnIee0EUuu4SmS1LWReo9X9c4i3mtYmw== X-Received: by 10.98.155.87 with SMTP id r84mr31931496pfd.109.1525563451271; Sat, 05 May 2018 16:37:31 -0700 (PDT) From: Michael Clark To: qemu-devel@nongnu.org Date: Sun, 6 May 2018 11:35:17 +1200 Message-Id: <1525563325-62963-13-git-send-email-mjc@sifive.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1525563325-62963-1-git-send-email-mjc@sifive.com> References: <1525563325-62963-1-git-send-email-mjc@sifive.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c00::243 Subject: [Qemu-devel] [PULL 12/20] RISC-V: Update E and I extension order X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagar Karandikar , Bastian Koppelmann , Palmer Dabbelt , Michael Clark , Alistair Francis , patches@groups.riscv.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Section 22.8 Subset Naming Convention of the RISC-V ISA Specification defines the canonical order for extensions in the ISA string. It is silent on the position of the E extension however E is a substitute for I so it must come early in the extension list order. A comment is added to state E and I are mutually exclusive, as the E extension will be added to the RISC-V port in the future. Cc: Sagar Karandikar Cc: Bastian Koppelmann Cc: Palmer Dabbelt Cc: Alistair Francis Signed-off-by: Michael Clark Reviewed-by: Alistair Francis --- target/riscv/cpu.c | 2 +- target/riscv/cpu.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 5a527fbba0bd..4e5a56d4e312 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -26,7 +26,7 @@ =20 /* RISC-V CPU definitions */ =20 -static const char riscv_exts[26] =3D "IMAFDQECLBJTPVNSUHKORWXYZG"; +static const char riscv_exts[26] =3D "IEMAFDQCLBJTPVNSUHKORWXYZG"; =20 const char * const riscv_int_regnames[] =3D { "zero", "ra ", "sp ", "gp ", "tp ", "t0 ", "t1 ", "t2 ", diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 9871e6feb1de..1dcbdbe6f77d 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -71,6 +71,7 @@ #define RV(x) ((target_ulong)1 << (x - 'A')) =20 #define RVI RV('I') +#define RVE RV('E') /* E and I are mutually exclusive */ #define RVM RV('M') #define RVA RV('A') #define RVF RV('F') --=20 2.7.0