From nobody Mon Feb 9 15:46:05 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1532008928885611.4537432085875; Thu, 19 Jul 2018 07:02:08 -0700 (PDT) Received: from localhost ([::1]:43094 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fg9Oj-00083W-O8 for importer@patchew.org; Thu, 19 Jul 2018 09:55:13 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49974) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fg8W2-0003G5-JH for qemu-devel@nongnu.org; Thu, 19 Jul 2018 09:01:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fg8TG-0004KT-EX for qemu-devel@nongnu.org; Thu, 19 Jul 2018 08:58:42 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:55309 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 1fg8TG-0004Je-1S for qemu-devel@nongnu.org; Thu, 19 Jul 2018 08:55:50 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id A31F81A22AF; Thu, 19 Jul 2018 14:55:48 +0200 (CEST) Received: from smarkovic.mipstec.com (smarkovic.domain.local [10.10.14.46]) by mail.rt-rk.com (Postfix) with ESMTPSA id 86C3F1A1D42; Thu, 19 Jul 2018 14:55:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Stefan Markovic To: qemu-devel@nongnu.org Date: Thu, 19 Jul 2018 14:54:36 +0200 Message-Id: <1532004912-13899-5-git-send-email-stefan.markovic@rt-rk.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1532004912-13899-1-git-send-email-stefan.markovic@rt-rk.com> References: <1532004912-13899-1-git-send-email-stefan.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 X-Mailman-Approved-At: Thu, 19 Jul 2018 09:35:10 -0400 Subject: [Qemu-devel] [PATCH v3 04/40] target/mips: Add decode_nanomips_opc() function 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: pburton@wavecomp.com, smarkovic@wavecomp.com, riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, philippe.mathieu.daude@gmail.com, amarkovic@wavecomp.com, pjovanovic@wavecomp.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Yongbok Kim Add empty body and invocation of decode_nanomips_opc() if the bit ISA_NANOMIPS32 is set in env->insn_flags. Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- target/mips/translate.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/target/mips/translate.c b/target/mips/translate.c index 227b2c0..67a0f70 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16458,6 +16458,19 @@ enum { NM_EVP =3D 0x01, }; =20 + +/* + * + * nanoMIPS decoding engine + * + */ + +static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx) +{ + return 2; +} + + /* SmartMIPS extension to MIPS32 */ =20 #if defined(TARGET_MIPS64) @@ -21263,8 +21276,13 @@ static void mips_tr_translate_insn(DisasContextBas= e *dcbase, CPUState *cs) insn_bytes =3D 4; decode_opc(env, ctx); } else if (ctx->insn_flags & ASE_MICROMIPS) { - ctx->opcode =3D cpu_lduw_code(env, ctx->base.pc_next); - insn_bytes =3D decode_micromips_opc(env, ctx); + if (env->insn_flags & ISA_NANOMIPS32) { + ctx->opcode =3D cpu_lduw_code(env, ctx->base.pc_next); + insn_bytes =3D decode_nanomips_opc(env, ctx); + } else { + ctx->opcode =3D cpu_lduw_code(env, ctx->base.pc_next); + insn_bytes =3D decode_micromips_opc(env, ctx); + } } else if (ctx->insn_flags & ASE_MIPS16) { ctx->opcode =3D cpu_lduw_code(env, ctx->base.pc_next); insn_bytes =3D decode_mips16_opc(env, ctx); --=20 2.7.4