From mboxrd@z Thu Jan 1 00:00:00 1970 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 06962C433EF for ; Wed, 6 Jul 2022 20:48:33 +0000 (UTC) Received: from localhost ([::1]:57186 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o9Bwl-0000EA-SK for qemu-devel@archiver.kernel.org; Wed, 06 Jul 2022 16:48:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37752) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o9BMN-0000if-IF; Wed, 06 Jul 2022 16:10:59 -0400 Received: from mail-vs1-xe2d.google.com ([2607:f8b0:4864:20::e2d]:43845) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1o9BML-0003gu-Cz; Wed, 06 Jul 2022 16:10:55 -0400 Received: by mail-vs1-xe2d.google.com with SMTP id d187so16177803vsd.10; Wed, 06 Jul 2022 13:10:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2eaOVbokY+S8+DaN4zl7nKIlg6C9aLbG5VzjxMhIIbc=; b=YfRDZKgmxlGjRBCMPctRJokiS9kLfsvFil7iqWxGEig9hTbqhrTJocKlPmonKz/Ncj Ukg6IglY+U5VL5iOjqp24lrlQkazAZ0rbRfklHuJ9HxVwj8SM7CmDrdfggwYs8wVQZuD MEbVm2znAoie6ekMCgrAezxOltcviysYZ0VC+e8qdLMQrdFqIC6vJFEwm14PLQ5B2y07 QS9u3gHhFHI1vhs6NpMpSbSC6qfTQTYGXrNostvm63nh1/+LTzlon5glcffcrTJP0yKE d2QPo2JR+iOots40X5b4qB7owottmeM3NmMFpSLJrJ4o4UJM1/WKpvaz1WgqYUMWf4ws 3NTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2eaOVbokY+S8+DaN4zl7nKIlg6C9aLbG5VzjxMhIIbc=; b=n49vFkrCMYTdD8RoGRp0F5X3yGbnbTi79hjdVH4ayfPzNeP74Mf9do9Nl+aNyT+vq2 cY2B6rpFEuiMzzUUNruneiM8CGLPWy0zLDEVi7bFwMkTVGFhhzV8oYiIO5FdodGPh5NJ e/gipKv5Y9M7QuHFDF7NoWP2alx3WR+oN5HwGLAByauJZIcaqjEf4V3sQHYHVAJOjgtO TQPQ7hZGo9DcF0IIbtgsvCLQrUCrXh77dqiCKbYQLB4CL6iHXtc6sQHKmv+AxIb64U5s yDKf6lIYFjzvFHBaONnTBNrpdmh6Dscsg5G7bXBSRsWqTh1IdDeLdja62fkTqS8Qd/h3 mJJg== X-Gm-Message-State: AJIora+M3xuIogw8o79XALN2/CMUsO8Pn7fMBUF0OeqWps5vzF0lpEAM nQJH5Nkcqh9xJvUZ4rTwwaWMMM8PRz8= X-Google-Smtp-Source: AGRyM1tv2B4t/e6iyyogD1PM04VfMhkmnJUkueOohmzI+9Xbp5n4QxQ0p0JeyF+Nv8/9TnTigjdCEw== X-Received: by 2002:a05:6102:7b9:b0:356:9ef:999e with SMTP id x25-20020a05610207b900b0035609ef999emr24674504vsg.47.1657138251914; Wed, 06 Jul 2022 13:10:51 -0700 (PDT) Received: from balboa.ibmuc.com (201-27-97-88.dsl.telesp.net.br. [201.27.97.88]) by smtp.gmail.com with ESMTPSA id r22-20020a056122015600b003744975035asm788662vko.19.2022.07.06.13.10.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Jul 2022 13:10:51 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, danielhb413@gmail.com, peter.maydell@linaro.org, richard.henderson@linaro.org, Matheus Ferst Subject: [PULL 31/34] target/ppc: implement cdtbcd Date: Wed, 6 Jul 2022 17:09:43 -0300 Message-Id: <20220706200946.471114-32-danielhb413@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220706200946.471114-1-danielhb413@gmail.com> References: <20220706200946.471114-1-danielhb413@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::e2d; envelope-from=danielhb413@gmail.com; helo=mail-vs1-xe2d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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" From: Matheus Ferst Implements the Convert Declets To Binary Coded Decimal instruction. Since libdecnumber doesn't expose the methods for direct conversion (decDigitsFromDPD, DPD2BCD, etc), a positive decimal32 with zero exponent is used as an intermediate value to convert the declets. Reviewed-by: Richard Henderson Signed-off-by: Matheus Ferst Signed-off-by: Víctor Colombo Message-Id: <20220629162904.105060-12-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza --- target/ppc/dfp_helper.c | 26 ++++++++++++++++++++++ target/ppc/helper.h | 1 + target/ppc/insn32.decode | 1 + target/ppc/translate/fixedpoint-impl.c.inc | 7 ++++++ 4 files changed, 35 insertions(+) diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c index db9e994c8c..5ba74b2124 100644 --- a/target/ppc/dfp_helper.c +++ b/target/ppc/dfp_helper.c @@ -1392,6 +1392,32 @@ DFP_HELPER_SHIFT(DSCLIQ, 128, 1) DFP_HELPER_SHIFT(DSCRI, 64, 0) DFP_HELPER_SHIFT(DSCRIQ, 128, 0) +target_ulong helper_CDTBCD(target_ulong s) +{ + uint64_t res = 0; + uint32_t dec32, declets; + uint8_t bcd[6]; + int i, w, sh; + decNumber a; + + for (w = 1; w >= 0; w--) { + res <<= 32; + declets = extract64(s, 32 * w, 20); + if (declets) { + /* decimal32 with zero exponent and word "w" declets */ + dec32 = (0x225ULL << 20) | declets; + decimal32ToNumber((decimal32 *)&dec32, &a); + decNumberGetBCD(&a, bcd); + for (i = 0; i < a.digits; i++) { + sh = 4 * (a.digits - 1 - i); + res |= (uint64_t)bcd[i] << sh; + } + } + } + + return res; +} + target_ulong helper_CBCDTD(target_ulong s) { uint64_t res = 0; diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 583c8dd0c2..ed0641a234 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -54,6 +54,7 @@ DEF_HELPER_3(sraw, tl, env, tl, tl) DEF_HELPER_FLAGS_2(CFUGED, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(PDEPD, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(PEXTD, TCG_CALL_NO_RWG_SE, i64, i64, i64) +DEF_HELPER_FLAGS_1(CDTBCD, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(CBCDTD, TCG_CALL_NO_RWG_SE, tl, tl) #if defined(TARGET_PPC64) DEF_HELPER_FLAGS_2(cmpeqb, TCG_CALL_NO_RWG_SE, i32, tl, tl) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index 65bcaf657f..f7653ef9d5 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -317,6 +317,7 @@ PEXTD 011111 ..... ..... ..... 0010111100 - @X ## BCD Assist ADDG6S 011111 ..... ..... ..... - 001001010 - @X +CDTBCD 011111 ..... ..... ----- 0100011010 - @X_sa CBCDTD 011111 ..... ..... ----- 0100111010 - @X_sa ### Float-Point Load Instructions diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc index 892c9d2568..cb0097bedb 100644 --- a/target/ppc/translate/fixedpoint-impl.c.inc +++ b/target/ppc/translate/fixedpoint-impl.c.inc @@ -530,6 +530,13 @@ static bool trans_ADDG6S(DisasContext *ctx, arg_X *a) return true; } +static bool trans_CDTBCD(DisasContext *ctx, arg_X_sa *a) +{ + REQUIRE_INSNS_FLAGS2(ctx, BCDA_ISA206); + gen_helper_CDTBCD(cpu_gpr[a->ra], cpu_gpr[a->rs]); + return true; +} + static bool trans_CBCDTD(DisasContext *ctx, arg_X_sa *a) { REQUIRE_INSNS_FLAGS2(ctx, BCDA_ISA206); -- 2.36.1