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[76.251.165.188]) by smtp.gmail.com with ESMTPSA id r133-v6sm7511499oia.33.2018.07.23.13.21.23 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Jul 2018 13:21:23 -0700 (PDT) From: Michael Roth To: qemu-devel@nongnu.org Date: Mon, 23 Jul 2018 15:17:27 -0500 Message-Id: <20180723201748.25573-79-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180723201748.25573-1-mdroth@linux.vnet.ibm.com> References: <20180723201748.25573-1-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4003:c06::22c Subject: [Qemu-devel] [PATCH 78/99] target/arm: Implement FCVT (scalar, fixed-point) for fp16 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: Peter Maydell , Richard Henderson , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Richard Henderson Cc: qemu-stable@nongnu.org Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson Tested-by: Alex Bennée Message-id: 20180512003217.9105-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell (cherry picked from commit 2752728016bef06e7c9cfb961019272859beeca4) Signed-off-by: Michael Roth --- target/arm/translate-a64.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 33be611bdb..c5be901b5f 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5454,8 +5454,21 @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn) bool sf = extract32(insn, 31, 1); bool itof; - if (sbit || (type > 1) - || (!sf && scale < 32)) { + if (sbit || (!sf && scale < 32)) { + unallocated_encoding(s); + return; + } + + switch (type) { + case 0: /* float32 */ + case 1: /* float64 */ + break; + case 3: /* float16 */ + if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) { + break; + } + /* fallthru */ + default: unallocated_encoding(s); return; }