From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55476) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fB99Y-00046l-2D for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fB99U-0007Uw-Sg for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:24 -0400 Received: from mail-pg0-x242.google.com ([2607:f8b0:400e:c05::242]:33565) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fB99U-0007U9-Li for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:20 -0400 Received: by mail-pg0-x242.google.com with SMTP id i194so12140107pgd.0 for ; Tue, 24 Apr 2018 18:23:20 -0700 (PDT) From: Richard Henderson Date: Tue, 24 Apr 2018 15:22:58 -1000 Message-Id: <20180425012300.14698-8-richard.henderson@linaro.org> In-Reply-To: <20180425012300.14698-1-richard.henderson@linaro.org> References: <20180425012300.14698-1-richard.henderson@linaro.org> Subject: [Qemu-devel] [PATCH 7/9] target/arm: Implement FCVT (scalar, fixed-point) for fp16 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, alex.bennee@linaro.org Signed-off-by: Richard Henderson --- 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 4f6317aa0f..794ede7222 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5372,8 +5372,7 @@ 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; } @@ -5392,6 +5391,20 @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn) 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; + } + if (!fp_access_check(s)) { return; } -- 2.14.3