From patchwork Sun Sep 3 16:31:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamil Rytarowski X-Patchwork-Id: 809329 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xlf2V6lrqz9t2f for ; Mon, 4 Sep 2017 02:44:18 +1000 (AEST) Received: from localhost ([::1]:59541 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1doY0P-0000SV-1s for incoming@patchwork.ozlabs.org; Sun, 03 Sep 2017 12:44:17 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42511) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1doXzy-0000Nf-Ql for qemu-devel@nongnu.org; Sun, 03 Sep 2017 12:43:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1doXzt-0008Vt-O5 for qemu-devel@nongnu.org; Sun, 03 Sep 2017 12:43:50 -0400 Received: from mout.gmx.net ([212.227.17.22]:49533) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1doXzt-0008VC-DV for qemu-devel@nongnu.org; Sun, 03 Sep 2017 12:43:45 -0400 Received: from localhost.localdomain ([185.58.161.191]) by mail.gmx.com (mrgmx101 [212.227.17.174]) with ESMTPSA (Nemesis) id 0MfAog-1e8xUN3yZ8-00OmJg; Sun, 03 Sep 2017 18:43:42 +0200 From: Kamil Rytarowski To: laurent@vivier.eu Date: Sun, 3 Sep 2017 18:31:30 +0200 Message-Id: <20170903163130.14288-1-n54@gmx.com> X-Mailer: git-send-email 2.14.1 X-Provags-ID: V03:K0:5DXUvPsNP8jwy/6Oq2x4gvBI5X5nhj10Q+RTD/PeWMslovmmnPy J3weEWG5oyC4ntf6yuQlnrRosm9lEINquaFY7jysqVtTpykm8Yxzw+xutzuXpR6kGfXmKeZ 244g0Ok/I+I1dFwRpUIucuGaxw+yj3bbSJnZO+L2OdKbmzB7dihViH7m4D7qOVdLrDare7N b81DXpaTX2Lms4ltPjd4Q== X-UI-Out-Filterresults: notjunk:1; V01:K0:DCRjWXiWUGI=:4zi1L9RK8uFC3rBu2IiqFR 3H3+RmS2/LG6pWSxjLgsarf1ZfSa+twsBunJQf+UVvU5/32ctvWzE78hX+2crq/L9t/PtaY4L rUC9p3Nuk1+IlZ6mds9fNZvMxPUDfoc0o+rm/NuS2Nzz5doUkHKQvsRg4iN4d726DaO04dp/3 0K7dHXv4n3XdAKy99fM/Zoq4/VXGa3H+FnWg+cOnq2WfclaW8ZNlAG7GgcU6b+Rbbt8aYeEfX bwr9RoyTBOkFu61PkqtRXoxzK6lv5ns7OMAxpgMyIll3uJ+NBW6tzRapmuNdzPZeiZfVlFWiZ ezq560zzkUE3dfVJTUrAaryV253+hiGwL3EMxJiXXilwQaiibrhV5Vj+Yw54k4ZLZSzOwTIom zZrDxg3FyKE5ra0Acjek9Zj2WyB+Grb86g+6RY8XTx3UXPWIa+MCoyZD73o8DtXwPsaGtZQG6 CxiNwc38k2VxnoY5Wd15uduf6GOSYyQx1Y8WDPurOg59eZI9X94P+xIpXbzARWRRv4Zc7dXr2 zT/kXAbaBL19UV61VQg+YdWpG93p0MiHpVT3+KKbMTi1dHz6YZ9uR2JQVsVQkSa++OyLW1jGm Wbu5coZN94lSAl1El6GAjG/JaezYgo7CW0vAuyDgHk894HgWlV5yGCSIx9VNKKbSc4Dl6xE0a yk1HtM6bUVr8iEW6mgZ+wA7o7mEdakxKDuyv+KydXnNXCEKLL9i88cGSB+5tfReMkiEUGsuFE qOkLCnLuh9GTU9Uag4UZ00KVg8065W9fMMAPklrnxLsU5EsLjT/0yAzgNLSZbzNa1h6etIYP1 EcYbaj0zTl5SkHUHVNDY996KhY6IA== X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 212.227.17.22 Subject: [Qemu-devel] [PATCH] target/m68k: Change fpu_rom from const static array to switch 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: Kamil Rytarowski , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" GCC 4.7.2 on SunOS reports that the values assigned to array members are not real constants: target/m68k/fpu_helper.c:32:5: error: initializer element is not constant target/m68k/fpu_helper.c:32:5: error: (near initialization for 'fpu_rom[0]') rules.mak:66: recipe for target 'target/m68k/fpu_helper.o' failed Convert the array to switch() to workaround the issue. This fixes build on SmartOS (Joyent). Signed-off-by: Kamil Rytarowski --- target/m68k/fpu_helper.c | 108 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 78 insertions(+), 30 deletions(-) diff --git a/target/m68k/fpu_helper.c b/target/m68k/fpu_helper.c index bdfc537c68..13ce40db06 100644 --- a/target/m68k/fpu_helper.c +++ b/target/m68k/fpu_helper.c @@ -24,35 +24,6 @@ #include "exec/exec-all.h" #include "exec/cpu_ldst.h" -/* Undefined offsets may be different on various FPU. - * On 68040 they return 0.0 (floatx80_zero) - */ - -static const floatx80 fpu_rom[128] = { - [0x00] = floatx80_pi, /* Pi */ - [0x0b] = make_floatx80(0x3ffd, 0x9a209a84fbcff798ULL), /* Log10(2) */ - [0x0c] = make_floatx80(0x4000, 0xadf85458a2bb4a9aULL), /* e */ - [0x0d] = make_floatx80(0x3fff, 0xb8aa3b295c17f0bcULL), /* Log2(e) */ - [0x0e] = make_floatx80(0x3ffd, 0xde5bd8a937287195ULL), /* Log10(e) */ - [0x0f] = floatx80_zero, /* Zero */ - [0x30] = floatx80_ln2, /* ln(2) */ - [0x31] = make_floatx80(0x4000, 0x935d8dddaaa8ac17ULL), /* ln(10) */ - [0x32] = floatx80_one, /* 10^0 */ - [0x33] = make_floatx80(0x4002, 0xa000000000000000ULL), /* 10^1 */ - [0x34] = make_floatx80(0x4005, 0xc800000000000000ULL), /* 10^2 */ - [0x35] = make_floatx80(0x400c, 0x9c40000000000000ULL), /* 10^4 */ - [0x36] = make_floatx80(0x4019, 0xbebc200000000000ULL), /* 10^8 */ - [0x37] = make_floatx80(0x4034, 0x8e1bc9bf04000000ULL), /* 10^16 */ - [0x38] = make_floatx80(0x4069, 0x9dc5ada82b70b59eULL), /* 10^32 */ - [0x39] = make_floatx80(0x40d3, 0xc2781f49ffcfa6d5ULL), /* 10^64 */ - [0x3a] = make_floatx80(0x41a8, 0x93ba47c980e98ce0ULL), /* 10^128 */ - [0x3b] = make_floatx80(0x4351, 0xaa7eebfb9df9de8eULL), /* 10^256 */ - [0x3c] = make_floatx80(0x46a3, 0xe319a0aea60e91c7ULL), /* 10^512 */ - [0x3d] = make_floatx80(0x4d48, 0xc976758681750c17ULL), /* 10^1024 */ - [0x3e] = make_floatx80(0x5a92, 0x9e8b3b5dc53d5de5ULL), /* 10^2048 */ - [0x3f] = make_floatx80(0x7525, 0xc46052028a20979bULL), /* 10^4096 */ -}; - int32_t HELPER(reds32)(CPUM68KState *env, FPReg *val) { return floatx80_to_int32(val->d, &env->fp_status); @@ -387,7 +358,84 @@ void HELPER(ftst)(CPUM68KState *env, FPReg *val) void HELPER(fconst)(CPUM68KState *env, FPReg *val, uint32_t offset) { - val->d = fpu_rom[offset]; + floatx80 tmp; + + /* Undefined offsets may be different on various FPU. + * On 68040 they return 0.0 (floatx80_zero) + */ + switch (offset) { + case 0x00: + tmp = floatx80_pi; /* Pi */ + break; + case 0x0b: + tmp = make_floatx80(0x3ffd, 0x9a209a84fbcff798ULL); /* Log10(2) */ + break; + case 0x0c: + tmp = make_floatx80(0x4000, 0xadf85458a2bb4a9aULL); /* e */ + break; + case 0x0d: + tmp = make_floatx80(0x3fff, 0xb8aa3b295c17f0bcULL); /* Log2(e) */ + break; + case 0x0e: + tmp = make_floatx80(0x3ffd, 0xde5bd8a937287195ULL); /* Log10(e) */ + break; + case 0x0f: + tmp = floatx80_zero; /* Zero */ + break; + case 0x30: + tmp = floatx80_ln2; /* ln(2) */ + break; + case 0x31: + tmp = make_floatx80(0x4000, 0x935d8dddaaa8ac17ULL); /* ln(10) */ + break; + case 0x32: + tmp = floatx80_one; /* 10^0 */ + break; + case 0x33: + tmp = make_floatx80(0x4002, 0xa000000000000000ULL); /* 10^1 */ + break; + case 0x34: + tmp = make_floatx80(0x4005, 0xc800000000000000ULL); /* 10^2 */ + break; + case 0x35: + tmp = make_floatx80(0x400c, 0x9c40000000000000ULL); /* 10^4 */ + break; + case 0x36: + tmp = make_floatx80(0x4019, 0xbebc200000000000ULL); /* 10^8 */ + break; + case 0x37: + tmp = make_floatx80(0x4034, 0x8e1bc9bf04000000ULL); /* 10^16 */ + break; + case 0x38: + tmp = make_floatx80(0x4069, 0x9dc5ada82b70b59eULL); /* 10^32 */ + break; + case 0x39: + tmp = make_floatx80(0x40d3, 0xc2781f49ffcfa6d5ULL); /* 10^64 */ + break; + case 0x3a: + tmp = make_floatx80(0x41a8, 0x93ba47c980e98ce0ULL); /* 10^128 */ + break; + case 0x3b: + tmp = make_floatx80(0x4351, 0xaa7eebfb9df9de8eULL); /* 10^256 */ + break; + case 0x3c: + tmp = make_floatx80(0x46a3, 0xe319a0aea60e91c7ULL); /* 10^512 */ + break; + case 0x3d: + tmp = make_floatx80(0x4d48, 0xc976758681750c17ULL); /* 10^1024 */ + break; + case 0x3e: + tmp = make_floatx80(0x5a92, 0x9e8b3b5dc53d5de5ULL); /* 10^2048 */ + break; + case 0x3f: + tmp = make_floatx80(0x7525, 0xc46052028a20979bULL); /* 10^4096 */ + break; + default: + tmp = floatx80_zero; + break; + } + + val->d = tmp; } typedef int (*float_access)(CPUM68KState *env, uint32_t addr, FPReg *fp,