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[97.126.117.207]) by smtp.gmail.com with ESMTPSA id o24sm104287919pfp.135.2019.07.26.10.51.50 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 26 Jul 2019 10:51:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=GfZoaF1PKj02fL5gI7kwlJOVMtCnQ9O6XVR81E0meI8=; b=kcq8eWPVuVdKWR6yW1d/KHcSAnOLyfw8o2AyH2g3hGs0sb1lxn1A0JA91+kpnwI0CS qppjr3UV2eo+kWSsTPm3Igg9+XENJRT6omZwXtoPzln8YbZFwhvmXqShJtOs+gWUxCbI HJL5Qwclub7i4zjhVYFcV/RnUvyw7xJ7RNyViifawnoL+u/kaoFsODr9lQYgnxIZr9Ee yGVhmt9i+LHlYGxDHjym7zm4dxuy5Fbnac9Pgng2GmSzyrkwS3bmj3hDq13G9v6VJfFp K49ZJeCEvLowoCCkYWtjZwPgnRGejqDJGD6/7r4MYQgJ/f9VNIQrxVniWbS1iD2tJ7qK MLTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=GfZoaF1PKj02fL5gI7kwlJOVMtCnQ9O6XVR81E0meI8=; b=eHDBEObfeFUkmJ5lHLlEIhd2uI88aTn9xDKoGAJ3B9/unYqyITTDCw5W6XNZNpOD9L kAiaoTzJbn/PofZNui7zF1oPBM0Pt0XKELsDzvdulcuGN343EU6NG1GQ7PeFo5N3iDuv cF7CVA/Ftm4kR0eCRySg4BfgjzZbj4vIFdk2Hp8bn6BmBukE8SgoIhjRTJ8tdVcm9sVr nmPAjdcLWWQuVpMl98LRKJq8hMbY49bLDx/3iojpabHMW69VeHz1Tyx8fOhXVFszMvSi wz6+ehVBZIcd5XxQtNMyGxy3nXsZTdFn5y1I78YiIbR1qk/yhktSFCjdk8M7wn46mSUm B++A== X-Gm-Message-State: APjAAAWt1u3eRVuHv3bGPnyuIiJrn8Mydctz0/Q6x69zYBOGS3gGfc1x JG3Mjs3jYF/VoTrfdcy/qOhlvDTZiX0= X-Google-Smtp-Source: APXvYqzVE8B2mzx60xssgjTgsd+M67p9tl80pak7Zh1+teSK+EutOz2+fAnoMN9JoFaJa/Bey3kDvw== X-Received: by 2002:aa7:8218:: with SMTP id k24mr22628587pfi.221.1564163511718; Fri, 26 Jul 2019 10:51:51 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Fri, 26 Jul 2019 10:50:30 -0700 Message-Id: <20190726175032.6769-66-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190726175032.6769-1-richard.henderson@linaro.org> References: <20190726175032.6769-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::541 Subject: [Qemu-devel] [PATCH 65/67] target/arm: Clean up disas_thumb_insn X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Now that everything is converted, remove the rest of the legacy decode. Signed-off-by: Richard Henderson --- target/arm/translate.c | 27 ++------------------------- 1 file changed, 2 insertions(+), 25 deletions(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index a8db6e9280..c2b8b86fd2 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -10677,32 +10677,9 @@ static void disas_thumb2_insn(DisasContext *s, uin= t32_t insn) =20 static void disas_thumb_insn(DisasContext *s, uint32_t insn) { - if (disas_t16(s, insn)) { - return; + if (!disas_t16(s, insn)) { + gen_illegal_op(s); } - /* fall back to legacy decoder */ - - switch (insn >> 12) { - case 0: case 1: /* add/sub (3reg, 2reg imm), shift imm; in decodetree = */ - case 2: case 3: /* add, sub, cmp, mov (reg, imm), in decodetree */ - case 4: /* ldr lit, data proc (2reg), data proc ext, bx; in decodetree= */ - case 5: /* load/store register offset, in decodetree */ - case 6: /* load/store word immediate offset, in decodetree */ - case 7: /* load/store byte immediate offset, in decodetree */ - case 8: /* load/store halfword immediate offset, in decodetree */ - case 9: /* load/store from stack, in decodetree */ - case 10: /* add PC/SP (immediate), in decodetree */ - case 11: /* misc, in decodetree */ - case 12: /* load/store multiple, in decodetree */ - case 13: /* conditional branch or swi, in decodetree */ - case 14: - case 15: - /* branches, in decodetree */ - goto illegal_op; - } - return; -illegal_op: - gen_illegal_op(s); } =20 static bool insn_crosses_page(CPUARMState *env, DisasContext *s) --=20 2.17.1