From patchwork Fri Jan 7 18:56:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matheus K. Ferst" X-Patchwork-Id: 1576847 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4JVtrB2z4Mz9s0r for ; Sat, 8 Jan 2022 06:41:14 +1100 (AEDT) Received: from localhost ([::1]:43426 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n5v6u-0007nu-5Y for incoming@patchwork.ozlabs.org; Fri, 07 Jan 2022 14:41:12 -0500 Received: from eggs.gnu.org ([209.51.188.92]:40056) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n5uRt-00020e-DP; Fri, 07 Jan 2022 13:58:49 -0500 Received: from [201.28.113.2] (port=14535 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n5uRr-0007N2-RU; Fri, 07 Jan 2022 13:58:49 -0500 Received: from p9ibm ([10.10.71.235]) by outlook.eldorado.org.br over TLS secured channel with Microsoft SMTPSVC(8.5.9600.16384); Fri, 7 Jan 2022 15:57:41 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by p9ibm (Postfix) with ESMTP id D04A3800473; Fri, 7 Jan 2022 15:57:40 -0300 (-03) From: matheus.ferst@eldorado.org.br To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH 15/37] target/ppc: implement vclrlb Date: Fri, 7 Jan 2022 15:56:31 -0300 Message-Id: <20220107185653.1609775-16-matheus.ferst@eldorado.org.br> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220107185653.1609775-1-matheus.ferst@eldorado.org.br> References: <20220107185653.1609775-1-matheus.ferst@eldorado.org.br> MIME-Version: 1.0 X-OriginalArrivalTime: 07 Jan 2022 18:57:41.0212 (UTC) FILETIME=[725119C0:01D803F8] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass client-ip=201.28.113.2; envelope-from=matheus.ferst@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-ppc@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: danielhb413@gmail.com, richard.henderson@linaro.org, groug@kaod.org, clg@kaod.org, Matheus Ferst , david@gibson.dropbear.id.au Errors-To: qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-ppc" From: Matheus Ferst Signed-off-by: Matheus Ferst --- target/ppc/insn32.decode | 2 ++ target/ppc/translate/vmx-impl.c.inc | 56 +++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index 57fd6407fa..f718f29521 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -501,6 +501,8 @@ VSTRIBR 000100 ..... 00001 ..... . 0000001101 @VX_tb_rc VSTRIHL 000100 ..... 00010 ..... . 0000001101 @VX_tb_rc VSTRIHR 000100 ..... 00011 ..... . 0000001101 @VX_tb_rc +VCLRLB 000100 ..... ..... ..... 00110001101 @VX + # VSX Load/Store Instructions LXV 111101 ..... ..... ............ . 001 @DQ_TSX diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc index 8bcf637ff8..3fb4935bff 100644 --- a/target/ppc/translate/vmx-impl.c.inc +++ b/target/ppc/translate/vmx-impl.c.inc @@ -1956,6 +1956,62 @@ TRANS(VSTRIBR, do_vstri, gen_helper_VSTRIBR) TRANS(VSTRIHL, do_vstri, gen_helper_VSTRIHL) TRANS(VSTRIHR, do_vstri, gen_helper_VSTRIHR) +static bool trans_VCLRLB(DisasContext *ctx, arg_VX *a) +{ + TCGv_i64 hi, lo, rb; + TCGLabel *l, *end; + + REQUIRE_INSNS_FLAGS2(ctx, ISA310); + REQUIRE_VECTOR(ctx); + + l = gen_new_label(); + end = gen_new_label(); + + hi = tcg_const_local_i64(0); + lo = tcg_const_local_i64(0); + rb = tcg_temp_local_new_i64(); + + tcg_gen_extu_tl_i64(rb, cpu_gpr[a->vrb]); + + /* RB == 0: all zeros */ + tcg_gen_brcondi_i64(TCG_COND_EQ, rb, 0, end); + + get_avr64(lo, a->vra, false); + + /* RB <= 8 */ + tcg_gen_brcondi_i64(TCG_COND_LEU, rb, 8, l); + + get_avr64(hi, a->vra, true); + + /* RB >= 16: just copy VRA to VRB */ + tcg_gen_brcondi_i64(TCG_COND_GEU, rb, 16, end); + + /* 8 < RB < 16: copy lo and partially clear hi */ + tcg_gen_subfi_i64(rb, 16, rb); + tcg_gen_shli_i64(rb, rb, 3); + tcg_gen_shl_i64(hi, hi, rb); + tcg_gen_shr_i64(hi, hi, rb); + tcg_gen_br(end); + + /* 0 < RB <= 8: zeroes hi and partially clears lo */ + gen_set_label(l); + tcg_gen_subfi_i64(rb, 8, rb); + tcg_gen_shli_i64(rb, rb, 3); + tcg_gen_shl_i64(lo, lo, rb); + tcg_gen_shr_i64(lo, lo, rb); + + /* Update VRT */ + gen_set_label(end); + set_avr64(a->vrt, hi, true); + set_avr64(a->vrt, lo, false); + + tcg_temp_free_i64(hi); + tcg_temp_free_i64(lo); + tcg_temp_free_i64(rb); + + return true; +} + #define GEN_VAFORM_PAIRED(name0, name1, opc2) \ static void glue(gen_, name0##_##name1)(DisasContext *ctx) \ { \