From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52602) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a73Bu-0004Oj-GU for qemu-devel@nongnu.org; Thu, 10 Dec 2015 10:31:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a73Bq-0006zu-Or for qemu-devel@nongnu.org; Thu, 10 Dec 2015 10:31:34 -0500 Received: from mail-qg0-x236.google.com ([2607:f8b0:400d:c04::236]:34360) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a73Bq-0006zp-Ku for qemu-devel@nongnu.org; Thu, 10 Dec 2015 10:31:30 -0500 Received: by qgeb1 with SMTP id b1so147814490qge.1 for ; Thu, 10 Dec 2015 07:31:30 -0800 (PST) Sender: Richard Henderson References: <1449734536-9885-1-git-send-email-aurelien@aurel32.net> From: Richard Henderson Message-ID: <56699ACD.9080009@twiddle.net> Date: Thu, 10 Dec 2015 07:31:25 -0800 MIME-Version: 1.0 In-Reply-To: <1449734536-9885-1-git-send-email-aurelien@aurel32.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] tcg/arm: improve direct jump List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno , qemu-devel@nongnu.org Cc: TeLeMan On 12/10/2015 12:02 AM, Aurelien Jarno wrote: > Note: I don't really get the reason for the current 16MB limit. With the > standard branch instructions the offset is coded on 24 bits, but shifted > right by 2, which should give us a +/-32MB jumps, and therefore a 32MB > limit. That might be me with the off-by-one error on the bit counting... r~