From patchwork Sun Oct 4 11:01:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Gang X-Patchwork-Id: 526091 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 DA84E14029C for ; Sun, 4 Oct 2015 22:02:19 +1100 (AEDT) Received: from localhost ([::1]:42009 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zih3Z-0001A5-Pl for incoming@patchwork.ozlabs.org; Sun, 04 Oct 2015 07:02:17 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55273) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zih3F-0000jb-CJ for qemu-devel@nongnu.org; Sun, 04 Oct 2015 07:01:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zih3C-00075B-6M for qemu-devel@nongnu.org; Sun, 04 Oct 2015 07:01:57 -0400 Received: from smtpbg299.qq.com ([184.105.67.99]:45255) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zih3B-00074y-U5 for qemu-devel@nongnu.org; Sun, 04 Oct 2015 07:01:54 -0400 X-QQ-mid: esmtp23t1443956503t224t21418 Received: from localhost.localdomain.localdoma (unknown [223.72.67.84]) by esmtp4.qq.com (ESMTP) with id ; Sun, 04 Oct 2015 19:01:42 +0800 (CST) X-QQ-SSF: 01000000000000F0FI800F00002000G X-QQ-FEAT: 8EwnaagCsGsbgyHUvvIWuVsI3YgMcL6uDN4SAahHhOQM83/C3mEcSNzSshIHX DwkimRKc/uuwBGgl1ZKVLkfYzC2BuRfXvzCV5oboZcNX+K8KlxFMTVm341m56WYKlq434mu iUnst8CDm1Z8h3NpOnIRl1C/EmVhArv5OlOLIiV3RfI3oWyrmgHcYD7Yv0QIWApJyiROVoE RN2q6mg0rHR90tDs1ZEiAo256RVyRquWW1OOFib/wjtnswtOKN+Gx X-QQ-GoodBg: 0 X-QQ-CSender: gang.chen.5i5j@qq.com From: gang.chen.5i5j@gmail.com To: peter.maydell@linaro.org, rth@twiddle.net Date: Sun, 4 Oct 2015 19:01:27 +0800 Message-Id: <1443956491-26850-3-git-send-email-gang.chen.5i5j@gmail.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1443956491-26850-1-git-send-email-gang.chen.5i5j@gmail.com> References: <1443956491-26850-1-git-send-email-gang.chen.5i5j@gmail.com> X-QQ-SENDSIZE: 520 X-QQ-FName: 9678338CCACF4762AD000C9A28C1186E X-QQ-LocalIP: 163.177.66.155 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x X-Received-From: 184.105.67.99 Cc: cmetcalf@ezchip.com, qemu-devel@nongnu.org, xili_gchen_5257@hotmail.com, Chen Gang Subject: [Qemu-devel] [PATCH v2] target-tilegx: Implement v2mults instruction X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Chen Gang Just according to v1multu instruction implementation. Signed-off-by: Chen Gang --- target-tilegx/helper.h | 1 + target-tilegx/simd_helper.c | 13 +++++++++++++ target-tilegx/translate.c | 4 ++++ 3 files changed, 18 insertions(+) diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h index c58ee20..bbcc476 100644 --- a/target-tilegx/helper.h +++ b/target-tilegx/helper.h @@ -16,6 +16,7 @@ DEF_HELPER_FLAGS_2(v2int_h, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v2int_l, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v1multu, TCG_CALL_NO_RWG_SE, i64, i64, i64) +DEF_HELPER_FLAGS_2(v2mults, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v1shl, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v1shru, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v1shrs, TCG_CALL_NO_RWG_SE, i64, i64, i64) diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c index 6fa6318..4f226eb 100644 --- a/target-tilegx/simd_helper.c +++ b/target-tilegx/simd_helper.c @@ -41,6 +41,19 @@ uint64_t helper_v1multu(uint64_t a, uint64_t b) return r; } +uint64_t helper_v2mults(uint64_t a, uint64_t b) +{ + uint64_t r = 0; + int i; + + for (i = 0; i < 64; i += 16) { + int64_t ae = (int16_t)(a >> i); + int64_t be = (int16_t)(b >> i); + r |= ((ae * be) & 0xffff) << i; + } + return r; +} + uint64_t helper_v1shl(uint64_t a, uint64_t b) { uint64_t m; diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c index 034cbc2..eb2d0b1 100644 --- a/target-tilegx/translate.c +++ b/target-tilegx/translate.c @@ -1355,7 +1355,11 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext, case OE_RRR(V2MNZ, 0, X1): case OE_RRR(V2MULFSC, 0, X0): case OE_RRR(V2MULS, 0, X0): + return TILEGX_EXCP_OPCODE_UNIMPLEMENTED; case OE_RRR(V2MULTS, 0, X0): + gen_helper_v2mults(tdest, tsrca, tsrcb); + mnemonic = "v2mults"; + break; case OE_RRR(V2MZ, 0, X0): case OE_RRR(V2MZ, 0, X1): case OE_RRR(V2PACKH, 0, X0):