From patchwork Wed Apr 25 01:22:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 903920 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="Onp26xMe"; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40W2bD6GDBz9ryk for ; Wed, 25 Apr 2018 11:26:16 +1000 (AEST) Received: from localhost ([::1]:33317 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fB9CI-0005tt-Rg for incoming@patchwork.ozlabs.org; Tue, 24 Apr 2018 21:26:14 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55448) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fB99S-00041C-7N for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fB99R-0007PT-8s for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:18 -0400 Received: from mail-pf0-x242.google.com ([2607:f8b0:400e:c00::242]:34310) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fB99R-0007Ob-2B for qemu-devel@nongnu.org; Tue, 24 Apr 2018 21:23:17 -0400 Received: by mail-pf0-x242.google.com with SMTP id a14so3243592pfi.1 for ; Tue, 24 Apr 2018 18:23:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=K23IM9LkWimzPkzISbK/yu164bpvhZx2QuR/EggjLws=; b=Onp26xMemyBrKPEI//Clzlq5Q5ZHK9Lrf/3WSJo7xCN2lOhgHM9kRPeg2uqIt0WPBE 2SDc3cJAxjCDs+KVLn0zo8jd8Vy11sESkSien8oxVvWumaOJdeXIMu4HTRbcGrsRXUKc zkm7UB+4GslZB+vJ+NWBrukuM+e7rPbQfXZpk= 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=K23IM9LkWimzPkzISbK/yu164bpvhZx2QuR/EggjLws=; b=d43W+K8i+kjA6F9dcObD+IA6KX3GW3/lnqMs28STcbtWI/SNQWIr1inYqp0iP5S+Qg dV7MQXDtrBdFOxi7//WugcrM89lkJSVM1JBi8blJj9p8QEtJ3ujQ1U72MN001uU6lYLT WGGr1dLBuvHfMZgBIewJ22sdsOXM1PF6CPqUNC1743OrLXP70l0qAgcRKxHKfNwnC+43 PN33s5FOR1xwkqB/JPEbXybHit4GKic3TYZ09al6EMG6vwm98M0nXEq2yH2No8SLEwwG aYwczoqM/YQLSCly/6/25eFJiQqgbTd/lSRT2AfX49mORDCf0pfcdXBG4MN1tn8z/PIb /ENg== X-Gm-Message-State: ALQs6tA6bTxwupi2YZeBavpo9xFemuz2y7KqIdwX8YmzxcVvnEP2eeFr VVb8IoiwoCq9j/I9RWegPOOlrL6mrY8= X-Google-Smtp-Source: AB8JxZq8goVb9SfIO15z+w8OhJkfLtyER4Uu7IDA+JLGrHFzaQtJjoIz/iJ8ohuaXbAJeaPXGD3mJQ== X-Received: by 10.98.182.16 with SMTP id j16mr2976240pff.17.1524619395840; Tue, 24 Apr 2018 18:23:15 -0700 (PDT) Received: from cloudburst.twiddle.net.com (cpe-76-173-164-138.hawaii.res.rr.com. [76.173.164.138]) by smtp.gmail.com with ESMTPSA id z127sm27767966pfb.72.2018.04.24.18.23.14 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 24 Apr 2018 18:23:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Tue, 24 Apr 2018 15:22:56 -1000 Message-Id: <20180425012300.14698-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180425012300.14698-1-richard.henderson@linaro.org> References: <20180425012300.14698-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c00::242 Subject: [Qemu-devel] [PATCH 5/9] target/arm: Implement FMOV (general) 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@linaro.org, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Adding the fp16 moves to/from general registers. Signed-off-by: Richard Henderson --- target/arm/translate-a64.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index f2241d8174..36bb5f6f08 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5375,6 +5375,15 @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof) tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_hi_offset(s, rd)); clear_vec_high(s, true, rd); break; + case 3: + /* 16 bit */ + tmp = tcg_temp_new_i64(); + tcg_gen_ext16u_i64(tmp, tcg_rn); + write_fp_dreg(s, rd, tmp); + tcg_temp_free_i64(tmp); + break; + default: + g_assert_not_reached(); } } else { TCGv_i64 tcg_rd = cpu_reg(s, rd); @@ -5392,6 +5401,12 @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof) /* 64 bits from top half */ tcg_gen_ld_i64(tcg_rd, cpu_env, fp_reg_hi_offset(s, rn)); break; + case 3: + /* 16 bit */ + tcg_gen_ld16u_i64(tcg_rd, cpu_env, fp_reg_offset(s, rn, MO_16)); + break; + default: + g_assert_not_reached(); } } } @@ -5431,10 +5446,15 @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn) case 0xa: /* 64 bit */ case 0xd: /* 64 bit to top half of quad */ break; + case 0x6: /* 16-bit */ + if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) { + break; + } + /* fallthru */ default: /* all other sf/type/rmode combinations are invalid */ unallocated_encoding(s); - break; + return; } if (!fp_access_check(s)) {