From patchwork Thu Aug 23 13:33:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 10573965 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CEAA15A4 for ; Thu, 23 Aug 2018 13:41:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C79E22C14D for ; Thu, 23 Aug 2018 13:41:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BC7C52C15B; Thu, 23 Aug 2018 13:41:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 67D472C15F for ; Thu, 23 Aug 2018 13:41:22 +0000 (UTC) Received: from localhost ([::1]:36538 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fsprV-000283-Ap for patchwork-qemu-devel@patchwork.kernel.org; Thu, 23 Aug 2018 09:41:21 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45679) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fspm9-00050O-Pz for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:35:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fspm6-00005l-ON for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:35:49 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:41883 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fspm6-0008V9-A6 for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:35:46 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id BE0751A4137; Thu, 23 Aug 2018 15:34:42 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 96B001A1E50; Thu, 23 Aug 2018 15:34:42 +0200 (CEST) From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Thu, 23 Aug 2018 15:33:55 +0200 Message-Id: <1535031276-22911-6-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1535031276-22911-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1535031276-22911-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PULL v4 05/46] target/mips: Add placeholder and invocation of decode_nanomips_opc() 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: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Aleksandar Markovic Add empty body and invocation of decode_nanomips_opc() if the bit ISA_NANOMIPS32 is set in ctx->insn_flags. Reviewed-by: Richard Henderson Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- target/mips/translate.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/target/mips/translate.c b/target/mips/translate.c index 7fb322b..4184d91 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16586,6 +16586,19 @@ enum { NM_EVP = 0x01, }; + +/* + * + * nanoMIPS decoding engine + * + */ + +static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx) +{ + return 2; +} + + /* SmartMIPS extension to MIPS32 */ #if defined(TARGET_MIPS64) @@ -21402,7 +21415,10 @@ static void mips_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) int is_slot; is_slot = ctx->hflags & MIPS_HFLAG_BMASK; - if (!(ctx->hflags & MIPS_HFLAG_M16)) { + if (ctx->insn_flags & ISA_NANOMIPS32) { + ctx->opcode = cpu_lduw_code(env, ctx->base.pc_next); + insn_bytes = decode_nanomips_opc(env, ctx); + } else if (!(ctx->hflags & MIPS_HFLAG_M16)) { ctx->opcode = cpu_ldl_code(env, ctx->base.pc_next); insn_bytes = 4; decode_opc(env, ctx);