From patchwork Mon Jun 18 01:02:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jia Liu X-Patchwork-Id: 165366 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4E4FEB7300 for ; Mon, 18 Jun 2012 11:16:47 +1000 (EST) Received: from localhost ([::1]:35151 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SgQO7-0001py-6t for incoming@patchwork.ozlabs.org; Sun, 17 Jun 2012 21:04:15 -0400 Received: from eggs.gnu.org ([208.118.235.92]:50072) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SgQNn-0001BO-IQ for qemu-devel@nongnu.org; Sun, 17 Jun 2012 21:03:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SgQNl-0004w9-Ny for qemu-devel@nongnu.org; Sun, 17 Jun 2012 21:03:55 -0400 Received: from mail-pz0-f45.google.com ([209.85.210.45]:43016) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SgQNl-0004jq-Fa for qemu-devel@nongnu.org; Sun, 17 Jun 2012 21:03:53 -0400 Received: by mail-pz0-f45.google.com with SMTP id n2so5607657dad.4 for ; Sun, 17 Jun 2012 18:03:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:date:message-id:x-mailer:in-reply-to:references :content-type; bh=6/Y1e/Rv3u7+actT6HssRH5h5tOFz5hzATMh7Cqyh1U=; b=kv/CKkoB0p1t2UbAsFPPEFx2CNdnOZ1TvwxdjjlAxFirHMo2TjEzFIPQZunI37xZcq x5LLE3+lvan+Bg9Mnx4qk58aKZkAUnlstLtQpUpn+XasNNv+dtkhNIfN8ZxrrTLyXl0a qPc0Ug91AhvfVxaHiCsXJrCy+3M+Fh0wyWNmic6pU2uqetrEWjThzTxZvjbyHaKoIUNh VHhXfng4mO3J82OG2voljlfdjMjcYZUdNLJBjYl3M6WAhfaeGgnhTBhWA0d538ByYmdt 2bj48/6iuUftgwWSaNGp5g9f/k8ENKy8yPMI5U5hY2QnNOcw+GRqS/Lmiq8rImN+6542 xr0w== Received: by 10.68.201.195 with SMTP id kc3mr47195028pbc.33.1339981432533; Sun, 17 Jun 2012 18:03:52 -0700 (PDT) Received: from localhost ([1.202.183.51]) by mx.google.com with ESMTPS id pg3sm21912541pbc.2.2012.06.17.18.03.49 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 17 Jun 2012 18:03:51 -0700 (PDT) From: Jia Liu To: qemu-devel@nongnu.org Date: Mon, 18 Jun 2012 09:02:54 +0800 Message-Id: <1339981384-9117-7-git-send-email-proljc@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1339981384-9117-1-git-send-email-proljc@gmail.com> References: <1339981384-9117-1-git-send-email-proljc@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.210.45 Subject: [Qemu-devel] [PATCH v5 06/16] target-or32: Add int instruction helpers X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add OpenRISC int instruction helpers. Signed-off-by: Jia Liu --- target-openrisc/Makefile.objs | 2 +- target-openrisc/helper.h | 4 ++++ target-openrisc/int_helper.c | 51 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 56 insertions(+), 1 deletion(-) create mode 100644 target-openrisc/int_helper.c diff --git a/target-openrisc/Makefile.objs b/target-openrisc/Makefile.objs index 382190a..4286462 100644 --- a/target-openrisc/Makefile.objs +++ b/target-openrisc/Makefile.objs @@ -1,3 +1,3 @@ obj-$(CONFIG_SOFTMMU) += machine.o obj-y += cpu.o excp.o intrpt.o mmu.o translate.o -obj-y += excp_helper.o intrpt_helper.o mmu_helper.o +obj-y += excp_helper.o int_helper.o intrpt_helper.o mmu_helper.o diff --git a/target-openrisc/helper.h b/target-openrisc/helper.h index 4e2a49f..96840c0 100644 --- a/target-openrisc/helper.h +++ b/target-openrisc/helper.h @@ -22,6 +22,10 @@ /* exception */ DEF_HELPER_FLAGS_2(exception, 0, void, env, i32) +/* int */ +DEF_HELPER_FLAGS_1(ff1, 0, tl, tl) +DEF_HELPER_FLAGS_1(fl1, 0, tl, tl) + /* interrupt */ DEF_HELPER_FLAGS_1(rfe, 0, void, env) diff --git a/target-openrisc/int_helper.c b/target-openrisc/int_helper.c new file mode 100644 index 0000000..d1ffaa5 --- /dev/null +++ b/target-openrisc/int_helper.c @@ -0,0 +1,51 @@ +/* + * OpenRISC int helper routines + * + * Copyright (c) 2011-2012 Jia Liu + * Feng Gao + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#include "cpu.h" +#include "helper.h" +#include "excp.h" + +target_ulong HELPER(ff1)(target_ulong x) +{ + target_ulong n = 0; + + if (x == 0) { + return 0; + } + + for (n = 32; x; n--) { + x <<= 1; + } + return n+1; +} + +target_ulong HELPER(fl1)(target_ulong x) +{ + target_ulong n = 0; + + if (x == 0) { + return 0; + } + + for (n = 0; x; n++) { + x >>= 1; + } + return n; +}