From patchwork Fri Jun 10 18:23:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?V=C3=ADctor_Colombo?= X-Patchwork-Id: 12877916 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5DACEC433EF for ; Fri, 10 Jun 2022 18:40:49 +0000 (UTC) Received: from localhost ([::1]:53978 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nzjYu-0000e7-CQ for qemu-devel@archiver.kernel.org; Fri, 10 Jun 2022 14:40:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38482) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nzjJl-00011c-D4; Fri, 10 Jun 2022 14:25:14 -0400 Received: from [187.72.171.209] (port=48290 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nzjJj-0003eJ-SK; Fri, 10 Jun 2022 14:25:09 -0400 Received: from p9ibm ([10.10.71.235]) by outlook.eldorado.org.br over TLS secured channel with Microsoft SMTPSVC(8.5.9600.16384); Fri, 10 Jun 2022 15:23:42 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by p9ibm (Postfix) with ESMTP id B3CCD800058; Fri, 10 Jun 2022 15:23:42 -0300 (-03) From: =?utf-8?q?V=C3=ADctor_Colombo?= To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: clg@kaod.org, danielhb413@gmail.com, david@gibson.dropbear.id.au, groug@kaod.org, richard.henderson@linaro.org, victor.colombo@eldorado.org.br Subject: [PATCH RESEND v2 06/11] target/ppc: Implement mffscdrn[i] instructions Date: Fri, 10 Jun 2022 15:23:05 -0300 Message-Id: <20220610182310.68715-7-victor.colombo@eldorado.org.br> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220610182310.68715-1-victor.colombo@eldorado.org.br> References: <20220610182310.68715-1-victor.colombo@eldorado.org.br> MIME-Version: 1.0 X-OriginalArrivalTime: 10 Jun 2022 18:23:42.0962 (UTC) FILETIME=[370A5520:01D87CF7] X-Host-Lookup-Failed: Reverse DNS lookup failed for 187.72.171.209 (failed) Received-SPF: pass client-ip=187.72.171.209; envelope-from=victor.colombo@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, PDS_HP_HELO_NORDNS=0.659, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Víctor Colombo --- target/ppc/insn32.decode | 5 ++++ target/ppc/translate/fp-impl.c.inc | 41 ++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index 8954a13d6b..da507758b8 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -133,6 +133,9 @@ &X_imm2 rt imm @X_imm2 ...... rt:5 ..... ... imm:2 .......... . &X_imm2 +&X_imm3 rt imm +@X_imm3 ...... rt:5 ..... .. imm:3 .......... . &X_imm3 + %x_xt 0:1 21:5 &X_imm5 xt imm:uint8_t vrb @X_imm5 ...... ..... imm:5 vrb:5 .......... . &X_imm5 xt=%x_xt @@ -348,7 +351,9 @@ SETNBCR 011111 ..... ..... ----- 0111100000 - @X_bi MFFS 111111 ..... 00000 ----- 1001000111 . @X_t_rc MFFSCE 111111 ..... 00001 ----- 1001000111 - @X_t MFFSCRN 111111 ..... 10110 ..... 1001000111 - @X_tb +MFFSCDRN 111111 ..... 10100 ..... 1001000111 - @X_tb MFFSCRNI 111111 ..... 10111 ---.. 1001000111 - @X_imm2 +MFFSCDRNI 111111 ..... 10101 --... 1001000111 - @X_imm3 MFFSL 111111 ..... 11000 ----- 1001000111 - @X_t ### Decimal Floating-Point Arithmetic Instructions diff --git a/target/ppc/translate/fp-impl.c.inc b/target/ppc/translate/fp-impl.c.inc index d6231358f8..319513d001 100644 --- a/target/ppc/translate/fp-impl.c.inc +++ b/target/ppc/translate/fp-impl.c.inc @@ -696,6 +696,27 @@ static bool trans_MFFSCRN(DisasContext *ctx, arg_X_tb *a) return true; } +static bool trans_MFFSCDRN(DisasContext *ctx, arg_X_tb *a) +{ + TCGv_i64 t1, fpscr; + + REQUIRE_INSNS_FLAGS2(ctx, ISA300); + REQUIRE_FPU(ctx); + + t1 = tcg_temp_new_i64(); + get_fpr(t1, a->rb); + tcg_gen_andi_i64(t1, t1, FP_DRN); + + gen_reset_fpstatus(); + fpscr = place_from_fpscr(a->rt, FP_DRN | FP_ENABLES | FP_NI | FP_RN); + store_fpscr_masked(fpscr, FP_DRN, t1, 0x0100); + + tcg_temp_free_i64(t1); + tcg_temp_free_i64(fpscr); + + return true; +} + static bool trans_MFFSCRNI(DisasContext *ctx, arg_X_imm2 *a) { TCGv_i64 t1, fpscr; @@ -716,6 +737,26 @@ static bool trans_MFFSCRNI(DisasContext *ctx, arg_X_imm2 *a) return true; } +static bool trans_MFFSCDRNI(DisasContext *ctx, arg_X_imm3 *a) +{ + TCGv_i64 t1, fpscr; + + REQUIRE_INSNS_FLAGS2(ctx, ISA300); + REQUIRE_FPU(ctx); + + t1 = tcg_temp_new_i64(); + tcg_gen_movi_i64(t1, (uint64_t)a->imm << FPSCR_DRN0); + + gen_reset_fpstatus(); + fpscr = place_from_fpscr(a->rt, FP_DRN | FP_ENABLES | FP_NI | FP_RN); + store_fpscr_masked(fpscr, FP_DRN, t1, 0x0100); + + tcg_temp_free_i64(t1); + tcg_temp_free_i64(fpscr); + + return true; +} + static bool trans_MFFSL(DisasContext *ctx, arg_X_t *a) { TCGv_i64 fpscr;