From patchwork Tue Nov 9 05:51:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 12609751 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87A52C433EF for ; Tue, 9 Nov 2021 06:17:07 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1AA8D611AF for ; Tue, 9 Nov 2021 06:17:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1AA8D611AF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:44196 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mkKRO-0002Yc-7Y for qemu-devel@archiver.kernel.org; Tue, 09 Nov 2021 01:17:06 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50086) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkK3l-0004UF-Et; Tue, 09 Nov 2021 00:52:44 -0500 Received: from gandalf.ozlabs.org ([150.107.74.76]:43087) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkK3h-0006h4-VV; Tue, 09 Nov 2021 00:52:40 -0500 Received: by gandalf.ozlabs.org (Postfix, from userid 1007) id 4HpHDp0pmQz4xdp; Tue, 9 Nov 2021 16:52:10 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gibson.dropbear.id.au; s=201602; t=1636437130; bh=UlNbVBKPatAm87XjNPNH8pkTdAuw/DyJqkdNgzMdRIY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jhVY+d2Rzsw2vTNbSe0ekH7B81muFEmtAopS9WXbxu0tCX3JHTs6ARfdc0aq2YtL6 05H/gbdP7lx74DkzXCAQbeb+MlhQOVen/q24Axy2Gt+tFi4oaMyNHytZe2rkX3KPCf iPTgn3w1tiGMRe3j7+VYh83ZD/H91Ovk1M00iFho= From: David Gibson To: peter.maydell@linaro.org, clg@kaod.org, danielhb413@gmail.com, groug@kaod.org Subject: [PULL 14/54] target/ppc: Implement DCFFIXQQ Date: Tue, 9 Nov 2021 16:51:24 +1100 Message-Id: <20211109055204.230765-15-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211109055204.230765-1-david@gibson.dropbear.id.au> References: <20211109055204.230765-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=150.107.74.76; envelope-from=dgibson@gandalf.ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 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: , Cc: Richard Henderson , Luis Pires , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Luis Pires Implement the following PowerISA v3.1 instruction: dcffixqq: DFP Convert From Fixed Quadword Quad Signed-off-by: Luis Pires Reviewed-by: Richard Henderson Message-Id: <20211029192417.400707-5-luis.pires@eldorado.org.br> Signed-off-by: David Gibson --- target/ppc/dfp_helper.c | 12 ++++++++++++ target/ppc/helper.h | 1 + target/ppc/insn32.decode | 8 ++++++++ target/ppc/translate.c | 5 +++++ target/ppc/translate/dfp-impl.c.inc | 17 +++++++++++++++++ 5 files changed, 43 insertions(+) diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c index 07341a69f5..6b837c4450 100644 --- a/target/ppc/dfp_helper.c +++ b/target/ppc/dfp_helper.c @@ -970,6 +970,18 @@ static void CFFIX_PPs(struct PPC_DFP *dfp) DFP_HELPER_CFFIX(dcffix, 64) DFP_HELPER_CFFIX(dcffixq, 128) +void helper_DCFFIXQQ(CPUPPCState *env, ppc_fprp_t *t, ppc_avr_t *b) +{ + struct PPC_DFP dfp; + + dfp_prepare_decimal128(&dfp, NULL, NULL, env); + decNumberFromInt128(&dfp.t, (uint64_t)b->VsrD(1), (int64_t)b->VsrD(0)); + dfp_finalize_decimal128(&dfp); + CFFIX_PPs(&dfp); + + set_dfp128(t, &dfp.vt); +} + #define DFP_HELPER_CTFIX(op, size) \ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \ { \ diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 808c582382..8e4f67ceac 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -736,6 +736,7 @@ DEF_HELPER_3(drsp, void, env, fprp, fprp) DEF_HELPER_3(drdpq, void, env, fprp, fprp) DEF_HELPER_3(dcffix, void, env, fprp, fprp) DEF_HELPER_3(dcffixq, void, env, fprp, fprp) +DEF_HELPER_3(DCFFIXQQ, void, env, fprp, avr) DEF_HELPER_3(dctfix, void, env, fprp, fprp) DEF_HELPER_3(dctfixq, void, env, fprp, fprp) DEF_HELPER_4(ddedpd, void, env, fprp, fprp, i32) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index e13f920702..36586dfa59 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -50,6 +50,10 @@ &X_bfl bf l:bool ra rb @X_bfl ...... bf:3 - l:1 ra:5 rb:5 ..........- &X_bfl +&X_frtp_vrb frtp vrb +%x_frtp 22:4 !function=times_2 +@X_frtp_vrb ...... ....0 ..... vrb:5 .......... . &X_frtp_vrb frtp=%x_frtp + ### Fixed-Point Load Instructions LBZ 100010 ..... ..... ................ @D @@ -160,6 +164,10 @@ SETBCR 011111 ..... ..... ----- 0110100000 - @X_bi SETNBC 011111 ..... ..... ----- 0111000000 - @X_bi SETNBCR 011111 ..... ..... ----- 0111100000 - @X_bi +### Decimal Floating-Point Conversion Instructions + +DCFFIXQQ 111111 ..... 00000 ..... 1111100010 - @X_frtp_vrb + ## Vector Bit Manipulation Instruction VCFUGED 000100 ..... ..... ..... 10101001101 @VX diff --git a/target/ppc/translate.c b/target/ppc/translate.c index d4e72affa6..486339d402 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -7305,6 +7305,11 @@ static inline void set_avr64(int regno, TCGv_i64 src, bool high) /* * Helpers for decodetree used by !function for decoding arguments. */ +static int times_2(DisasContext *ctx, int x) +{ + return x * 2; +} + static int times_4(DisasContext *ctx, int x) { return x * 4; diff --git a/target/ppc/translate/dfp-impl.c.inc b/target/ppc/translate/dfp-impl.c.inc index 6c556dc2e1..d5b66567a6 100644 --- a/target/ppc/translate/dfp-impl.c.inc +++ b/target/ppc/translate/dfp-impl.c.inc @@ -230,3 +230,20 @@ GEN_DFP_T_FPR_I32_Rc(dscriq, rA, DCM) #undef GEN_DFP_T_A_B_I32_Rc #undef GEN_DFP_T_B_Rc #undef GEN_DFP_T_FPR_I32_Rc + +static bool trans_DCFFIXQQ(DisasContext *ctx, arg_DCFFIXQQ *a) +{ + TCGv_ptr rt, rb; + + REQUIRE_INSNS_FLAGS2(ctx, DFP); + REQUIRE_FPU(ctx); + REQUIRE_VECTOR(ctx); + + rt = gen_fprp_ptr(a->frtp); + rb = gen_avr_ptr(a->vrb); + gen_helper_DCFFIXQQ(cpu_env, rt, rb); + tcg_temp_free_ptr(rt); + tcg_temp_free_ptr(rb); + + return true; +}