From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BCC0DC433FE for ; Sun, 6 Nov 2022 02:39:07 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1orVXq-0000Cn-HW; Sat, 05 Nov 2022 22:37:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1orVXp-0000C3-Ko for qemu-devel@nongnu.org; Sat, 05 Nov 2022 22:37:57 -0400 Received: from mail-pg1-x52b.google.com ([2607:f8b0:4864:20::52b]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1orVXn-0003KK-Oz for qemu-devel@nongnu.org; Sat, 05 Nov 2022 22:37:57 -0400 Received: by mail-pg1-x52b.google.com with SMTP id v3so7607080pgh.4 for ; Sat, 05 Nov 2022 19:37:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=dpGJViuDySHrQ5ECzH4yPy8F2cBMov2h53f2wnD62c0=; b=Ns0FRD63XW7TAiOShxbT0OysYMLH/q5OvN6eTnx0E1orLttPG0N+fxniLMegbAAskk ENarESS9uQ+HEyCrq2ISmOCQxae7Ex+YDI86KYKnPWLAS7e9EgvN7tLbwrbBaWNvAY9w j96Oa+3o+oR+/xOpaeu+logNwYvCEkPDK2WVdj1xE0WqFLSa7+ckPX3bsTdHwNxlsRDH bn+symyoqx3FOCYSuX+W+u/8lcxmmR7D9uE1crjPKX/H4nBIdgmpE9HyNmekW+EA5Pza +kxpE0TqyB2hPkDdw6sbBfeARw16XVuiT5sYJjtIBXNuPXrS2kilYJjg953TMtREwA3q jGYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dpGJViuDySHrQ5ECzH4yPy8F2cBMov2h53f2wnD62c0=; b=rZHDzOWDvg0MiUDba9h2R+36BbW3SmzG6lyChOln1q+KuSzIFmePlBnD5RU+3ZW/uA n8k15w/oCGSEvLBSfMFfCDubQNMjpdoicV/STd92UEPKUMGYERcs2wvY7YxtfZTT1x+o 3kviZ8s5HLfIPPR+9D6AFlfJzESW/N1yWR/bbs40sffdGmlMUQ2gY/9PpKWAjgrsxcKP EhzEbJ7RY7x8W6KPzfTYSirkAkHJ/fYDRMaouyl+9KInL1P5SuU3drrBhyPIljEOqZP1 6YVh96fg1KdwyBvPpEmCGfk+DBdOV0mX+Nv7q+IrjCeUtsmgSw9RB03Qj/P6LsTu+Mod MqPA== X-Gm-Message-State: ACrzQf19TF3bAF5/ZhsGbXRCjpgB9wakS57gQrqINX1mNhsFE5TvY3S0 xWSCkZnnOaeKw+qnO4frBLFfPaHAzXwt/4yj X-Google-Smtp-Source: AMsMyM6M/nSnBdEzAfxYfBXRHX98/9dYIJ93UNep7GW6WBUrcFLxGRtbqZrj6C43a1t/Dfkowr5wMg== X-Received: by 2002:a05:6a02:202:b0:42b:d711:f27c with SMTP id bh2-20020a056a02020200b0042bd711f27cmr36596350pgb.246.1667702274122; Sat, 05 Nov 2022 19:37:54 -0700 (PDT) Received: from localhost.localdomain ([2001:8003:d918:7a00:e617:679e:af7:63d]) by smtp.gmail.com with ESMTPSA id m21-20020a170902d19500b0018862bb3976sm2259457plb.308.2022.11.05.19.37.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Nov 2022 19:37:53 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: philmd@linaro.org, sw@weilnetz.de Subject: [RESEND PATCH 4/6] disas/nanomips: Tidy read for 48-bit opcodes Date: Sun, 6 Nov 2022 13:37:33 +1100 Message-Id: <20221106023735.5277-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221106023735.5277-1-richard.henderson@linaro.org> References: <20221106023735.5277-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::52b; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org There is no point in looking for a 48-bit opcode if we've not read the second word for a 32-bit opcode. Signed-off-by: Richard Henderson --- disas/nanomips.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/disas/nanomips.c b/disas/nanomips.c index 52c7537379..092ea0ca0c 100644 --- a/disas/nanomips.c +++ b/disas/nanomips.c @@ -21965,14 +21965,14 @@ int print_insn_nanomips(bfd_vma memaddr, struct disassemble_info *info) return -1; } length = 4; - } - /* Handle 48-bit opcodes. */ - if ((words[0] >> 10) == 0x18) { - if (!read_u16(&words[1], memaddr + 4, info)) { - return -1; + /* Handle 48-bit opcodes. */ + if ((words[0] >> 10) == 0x18) { + if (!read_u16(&words[1], memaddr + 4, info)) { + return -1; + } + length = 6; } - length = 6; } for (int i = 0; i < 6; i += 2) { -- 2.34.1