From patchwork Wed Nov 16 20:07:28 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Ricardo Ziviani X-Patchwork-Id: 695835 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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 3tJxDq5TQVz9t2C for ; Thu, 17 Nov 2016 07:48:43 +1100 (AEDT) Received: from localhost ([::1]:54803 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c778K-0006CD-OT for incoming@patchwork.ozlabs.org; Wed, 16 Nov 2016 15:48:40 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57209) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c76V3-0006Cc-6n for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:08:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c76V0-0003na-0H for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:08:05 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:41922 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c76Uz-0003nW-RI for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:08:01 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAGK4AtG088323 for ; Wed, 16 Nov 2016 15:08:01 -0500 Received: from e24smtp03.br.ibm.com (e24smtp03.br.ibm.com [32.104.18.24]) by mx0b-001b2d01.pphosted.com with ESMTP id 26rx5w05p1-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 16 Nov 2016 15:08:01 -0500 Received: from localhost by e24smtp03.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 16 Nov 2016 18:07:57 -0200 Received: from d24relay01.br.ibm.com (d24relay01.br.ibm.com [9.8.31.16]) by d24dlp02.br.ibm.com (Postfix) with ESMTP id D6A411DC0054; Wed, 16 Nov 2016 15:07:56 -0500 (EST) Received: from d24av04.br.ibm.com (d24av04.br.ibm.com [9.8.31.97]) by d24relay01.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id uAGK7uE34960326; Wed, 16 Nov 2016 18:07:56 -0200 Received: from d24av04.br.ibm.com (localhost [127.0.0.1]) by d24av04.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id uAGK7uS2003399; Wed, 16 Nov 2016 18:07:56 -0200 Received: from pacoca.ibm.com ([9.85.153.183]) by d24av04.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id uAGK7coF003052; Wed, 16 Nov 2016 18:07:54 -0200 From: Jose Ricardo Ziviani To: qemu-ppc@nongnu.org Date: Wed, 16 Nov 2016 18:07:28 -0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1479326850-8369-1-git-send-email-joserz@linux.vnet.ibm.com> References: <1479326850-8369-1-git-send-email-joserz@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16111620-0024-0000-0000-0000012B0848 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16111620-0025-0000-0000-000015EEC90C Message-Id: <1479326850-8369-3-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-11-16_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1611160299 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 2/4] target-ppc: Implement bcdctsq. instruction 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: bharata@linux.vnet.ibm.com, qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" bcdctsq.: Decimal convert to signed quadword. It is possible to convert packed decimal values to signed quadwords. Signed-off-by: Jose Ricardo Ziviani --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 39 +++++++++++++++++++++++++++++++++++++ target-ppc/translate/vmx-impl.inc.c | 7 +++++++ 3 files changed, 47 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 87f533c..503f257 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -383,6 +383,7 @@ DEF_HELPER_3(bcdctn, i32, avr, avr, i32) DEF_HELPER_3(bcdcfz, i32, avr, avr, i32) DEF_HELPER_3(bcdctz, i32, avr, avr, i32) DEF_HELPER_3(bcdcfsq, i32, avr, avr, i32) +DEF_HELPER_3(bcdctsq, i32, avr, avr, i32) DEF_HELPER_2(xsadddp, void, env, i32) DEF_HELPER_2(xssubdp, void, env, i32) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index db65a51..1025438 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -2922,6 +2922,45 @@ uint32_t helper_bcdcfsq(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps) return cr; } +uint32_t helper_bcdctsq(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps) +{ + uint8_t i; + int cr = 0; + uint64_t hi = 0; + int sgnb = bcd_get_sgn(b); + int invalid = (sgnb == 0); + ppc_avr_t ret = { .u64 = { 0, 0 } }; + + ret.u64[LO_IDX] = bcd_get_digit(b, 31, &invalid); + for (i = 30; i > 0; i--) { + mulu64(&ret.u64[LO_IDX], &hi, + ret.u64[LO_IDX], 10ULL); + + ret.u64[HI_IDX] = (ret.u64[HI_IDX]) ? ret.u64[HI_IDX] * 10 + hi : hi; + ret.u64[LO_IDX] += bcd_get_digit(b, i, &invalid); + + if (unlikely(invalid)) { + break; + } + } + + if (sgnb == -1) { + if (ret.s64[HI_IDX] > 0) { + ret.s64[HI_IDX] = -ret.s64[HI_IDX]; + } else { + ret.s64[LO_IDX] = -ret.s64[LO_IDX]; + } + } + + cr = bcd_cmp_zero(b); + + if (unlikely(invalid)) { + cr = 1 << CRF_SO; + } + + return cr; +} + void helper_vsbox(ppc_avr_t *r, ppc_avr_t *a) { int i; diff --git a/target-ppc/translate/vmx-impl.inc.c b/target-ppc/translate/vmx-impl.inc.c index 36141e5..1579b58 100644 --- a/target-ppc/translate/vmx-impl.inc.c +++ b/target-ppc/translate/vmx-impl.inc.c @@ -990,10 +990,14 @@ GEN_BCD2(bcdctn) GEN_BCD2(bcdcfz) GEN_BCD2(bcdctz) GEN_BCD2(bcdcfsq) +GEN_BCD2(bcdctsq) static void gen_xpnd04_1(DisasContext *ctx) { switch (opc4(ctx->opcode)) { + case 0: + gen_bcdctsq(ctx); + break; case 2: gen_bcdcfsq(ctx); break; @@ -1018,6 +1022,9 @@ static void gen_xpnd04_1(DisasContext *ctx) static void gen_xpnd04_2(DisasContext *ctx) { switch (opc4(ctx->opcode)) { + case 0: + gen_bcdctsq(ctx); + break; case 2: gen_bcdcfsq(ctx); break;