From patchwork Sun Jul 24 17:10:56 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Filippov X-Patchwork-Id: 106531 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id C459EB6F83 for ; Mon, 25 Jul 2011 03:13:39 +1000 (EST) Received: from localhost ([::1]:49921 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ql2FD-00055m-Qy for incoming@patchwork.ozlabs.org; Sun, 24 Jul 2011 13:13:35 -0400 Received: from eggs.gnu.org ([140.186.70.92]:57622) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ql2F3-00052L-AG for qemu-devel@nongnu.org; Sun, 24 Jul 2011 13:13:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ql2Ej-0005Ko-Ft for qemu-devel@nongnu.org; Sun, 24 Jul 2011 13:13:15 -0400 Received: from mail-fx0-f47.google.com ([209.85.161.47]:56785) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ql2Ej-0004u6-AJ for qemu-devel@nongnu.org; Sun, 24 Jul 2011 13:13:05 -0400 Received: by mail-fx0-f47.google.com with SMTP id 11so8353846fxg.34 for ; Sun, 24 Jul 2011 10:13:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=/td0vgQTzMunJwW1AtzPzSO93JzmZyhSLbcx4kjIuxQ=; b=OIgfQefC4yBhTYElK0DpSbG3W/pF5Q2gJ/GnmPxG7rY/Fq2gZFlgFJhcZBDsI9EMMd /Jmb6w61yJTsxkxLr3SWClYA4ZT9Zc+p3vSlW1lmSkJ/Ui5fNYRKKSqs3ZwLR1wbo3Fa 9JIQOWmBVCwBoxeaaiWq96Uo/yRkQrqqtuEiU= Received: by 10.204.76.131 with SMTP id c3mr1007703bkk.111.1311527584781; Sun, 24 Jul 2011 10:13:04 -0700 (PDT) Received: from octofox.metropolis ([188.134.19.124]) by mx.google.com with ESMTPS id o11sm1071411bkt.37.2011.07.24.10.13.02 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 24 Jul 2011 10:13:03 -0700 (PDT) Received: by octofox.metropolis (sSMTP sendmail emulation); Sun, 24 Jul 2011 21:13:00 +0400 From: Max Filippov To: qemu-devel@nongnu.org Date: Sun, 24 Jul 2011 21:10:56 +0400 Message-Id: <1311527469-12963-19-git-send-email-jcmvbkbc@gmail.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1311527469-12963-1-git-send-email-jcmvbkbc@gmail.com> References: <1311527469-12963-1-git-send-email-jcmvbkbc@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.161.47 Cc: jcmvbkbc@gmail.com Subject: [Qemu-devel] [PATCH v2 18/31] target-xtensa: implement RST2 group (32 bit mul/div/rem) 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 Signed-off-by: Max Filippov --- target-xtensa/translate.c | 60 ++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 59 insertions(+), 1 deletions(-) diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index 1fe212d..52a76e1 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -878,7 +878,65 @@ static void disas_xtensa_insn(DisasContext *dc) break; case 2: /*RST2*/ - TBD(); + if (_OP2 >= 12) { + HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); + int label = gen_new_label(); + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label); + gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); + gen_set_label(label); + } + + switch (_OP2) { + case 8: /*MULLi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); + tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 10: /*MULUHi*/ + case 11: /*MULSHi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); + { + TCGv_i64 r = tcg_temp_new_i64(); + TCGv_i64 s = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_new_i64(); + + if (_OP2 == 10) { + tcg_gen_extu_i32_i64(s, cpu_R[RRR_S]); + tcg_gen_extu_i32_i64(t, cpu_R[RRR_T]); + } else { + tcg_gen_ext_i32_i64(s, cpu_R[RRR_S]); + tcg_gen_ext_i32_i64(t, cpu_R[RRR_T]); + } + tcg_gen_mul_i64(r, s, t); + tcg_gen_shri_i64(r, r, 32); + tcg_gen_trunc_i64_i32(cpu_R[RRR_R], r); + + tcg_temp_free_i64(r); + tcg_temp_free_i64(s); + tcg_temp_free_i64(t); + } + break; + + case 12: /*QUOUi*/ + tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 13: /*QUOSi*/ + tcg_gen_div_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 14: /*REMUi*/ + tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 15: /*REMSi*/ + tcg_gen_rem_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + default: /*reserved*/ + RESERVED(); + break; + } break; case 3: /*RST3*/