From patchwork Fri Nov 25 03:53:31 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: 699058 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 3tQ2MC0htmz9vDS for ; Fri, 25 Nov 2016 14:56:55 +1100 (AEDT) Received: from localhost ([::1]:43481 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cA7d6-0004Mu-BP for incoming@patchwork.ozlabs.org; Thu, 24 Nov 2016 22:56:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50244) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cA7aH-0001tf-5d for qemu-devel@nongnu.org; Thu, 24 Nov 2016 22:54:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cA7aC-0005Go-RJ for qemu-devel@nongnu.org; Thu, 24 Nov 2016 22:53:57 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:43746) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cA7aC-0005GO-IG for qemu-devel@nongnu.org; Thu, 24 Nov 2016 22:53:52 -0500 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAP3mZYl030119 for ; Thu, 24 Nov 2016 22:53:51 -0500 Received: from e24smtp04.br.ibm.com (e24smtp04.br.ibm.com [32.104.18.25]) by mx0a-001b2d01.pphosted.com with ESMTP id 26xa4w4tqq-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 24 Nov 2016 22:53:51 -0500 Received: from localhost by e24smtp04.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 25 Nov 2016 01:53:47 -0200 Received: from d24relay04.br.ibm.com (d24relay04.br.ibm.com [9.18.232.146]) by d24dlp02.br.ibm.com (Postfix) with ESMTP id CD90E1DC006E; Thu, 24 Nov 2016 22:53:46 -0500 (EST) Received: from d24av05.br.ibm.com (d24av05.br.ibm.com [9.18.232.44]) by d24relay04.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id uAP3rkh038076658; Fri, 25 Nov 2016 01:53:46 -0200 Received: from d24av05.br.ibm.com (localhost [127.0.0.1]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id uAP3rkff004337; Fri, 25 Nov 2016 01:53:46 -0200 Received: from pacoca.ibm.com ([9.80.218.176]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id uAP3raVN004312; Fri, 25 Nov 2016 01:53:44 -0200 From: Jose Ricardo Ziviani To: qemu-ppc@nongnu.org Date: Fri, 25 Nov 2016 01:53:31 -0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480046013-24788-1-git-send-email-joserz@linux.vnet.ibm.com> References: <1480046013-24788-1-git-send-email-joserz@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16112503-0028-0000-0000-00000174C838 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16112503-0029-0000-0000-0000146ED088 Message-Id: <1480046013-24788-3-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-11-24_11:, , 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-1611250066 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v3 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 Reviewed-by: David Gibson --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 40 +++++++++++++++++++++++++++++++++++++ target-ppc/translate/vmx-impl.inc.c | 7 +++++++ 3 files changed, 48 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index efb384a..d404e0b 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 9d753e2..4153f19 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -2912,6 +2912,46 @@ 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; + uint64_t carry; + uint64_t unused; + uint64_t lo_value; + uint64_t hi_value = 0; + int sgnb = bcd_get_sgn(b); + int invalid = (sgnb == 0); + + lo_value = bcd_get_digit(b, 31, &invalid); + for (i = 30; i > 0; i--) { + mulu64(&lo_value, &carry, lo_value, 10ULL); + mulu64(&hi_value, &unused, hi_value, 10ULL); + lo_value += bcd_get_digit(b, i, &invalid); + hi_value += carry; + + if (unlikely(invalid)) { + break; + } + } + + if (sgnb == -1) { + r->s64[LO_IDX] = -lo_value; + r->s64[HI_IDX] = ~hi_value + !r->s64[LO_IDX]; + } else { + r->s64[LO_IDX] = lo_value; + r->s64[HI_IDX] = hi_value; + } + + cr = bcd_cmp_zero(b); + + if (unlikely(invalid)) { + cr = 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;