From nobody Tue Feb 10 11:12:38 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 (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1534514809207658.7524497856591; Fri, 17 Aug 2018 07:06:49 -0700 (PDT) Received: from localhost ([::1]:34237 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqfOe-0007iL-Tn for importer@patchew.org; Fri, 17 Aug 2018 10:06:36 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52377) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqfMS-0004ei-4k for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fqfMR-0007P5-8z for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:20 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:43484 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 1fqfMR-0007OM-14 for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:19 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 8439A1A22A6; Fri, 17 Aug 2018 16:04:17 +0200 (CEST) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 5964A1A23C3; Fri, 17 Aug 2018 16:04:17 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Fri, 17 Aug 2018 16:02:52 +0200 Message-Id: <1534514633-13725-5-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1534514633-13725-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1534514633-13725-1-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] [PATCH v10 04/65] 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, 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: 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 | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/target/mips/translate.c b/target/mips/translate.c index 4f95b9a..b71d3fe 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16586,6 +16586,19 @@ 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) @@ -21402,7 +21415,10 @@ static void mips_tr_translate_insn(DisasContextBas= e *dcbase, CPUState *cs) int is_slot; =20 is_slot =3D ctx->hflags & MIPS_HFLAG_BMASK; - if (!(ctx->hflags & MIPS_HFLAG_M16)) { + if (ctx->insn_flags & ISA_NANOMIPS32) { + ctx->opcode =3D cpu_lduw_code(env, ctx->base.pc_next); + insn_bytes =3D decode_nanomips_opc(env, ctx); + } else if (!(ctx->hflags & MIPS_HFLAG_M16)) { ctx->opcode =3D cpu_ldl_code(env, ctx->base.pc_next); insn_bytes =3D 4; decode_opc(env, ctx); @@ -21841,8 +21857,8 @@ void cpu_state_reset(CPUMIPSState *env) env->CP0_Status |=3D (1 << CP0St_FR); } =20 - if (env->CP0_Config3 & (1 << CP0C3_ISA)) { - /* microMIPS on reset when Config3.ISA =3D=3D {1, 3} */ + if (env->CP0_Config3 & (1 << (CP0C3_ISA + 1))) { + /* microMIPS on reset when Config3.ISA =3D=3D 3 */ env->hflags |=3D MIPS_HFLAG_M16; } =20 --=20 2.7.4