From patchwork Wed Mar 9 10:42:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastian Koppelmann X-Patchwork-Id: 594969 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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 58B8E1401DE for ; Wed, 9 Mar 2016 21:44:55 +1100 (AEDT) Received: from localhost ([::1]:40569 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adbbp-00054w-Fm for incoming@patchwork.ozlabs.org; Wed, 09 Mar 2016 05:44:53 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41704) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adbZU-0000j2-26 for qemu-devel@nongnu.org; Wed, 09 Mar 2016 05:42:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1adbZP-0000sT-Sg for qemu-devel@nongnu.org; Wed, 09 Mar 2016 05:42:27 -0500 Received: from mail.uni-paderborn.de ([131.234.142.9]:33665) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adbZP-0000s0-MK for qemu-devel@nongnu.org; Wed, 09 Mar 2016 05:42:23 -0500 From: Bastian Koppelmann To: qemu-devel@nongnu.org Date: Wed, 9 Mar 2016 11:42:15 +0100 Message-Id: <1457520136-5280-7-git-send-email-kbastian@mail.uni-paderborn.de> X-Mailer: git-send-email 2.7.2 In-Reply-To: <1457520136-5280-1-git-send-email-kbastian@mail.uni-paderborn.de> References: <1457520136-5280-1-git-send-email-kbastian@mail.uni-paderborn.de> X-IMT-Spam-Score: 0.0 () X-PMX-Version: 6.2.1.2493963, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.3.9.103317 X-IMT-Authenticated-Sender: uid=kbastian,ou=People,o=upb,c=de X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 131.234.142.9 Cc: rth@twiddle.net Subject: [Qemu-devel] [PATCH v3 6/7] target-tricore: Add cmp.f instruction 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 Reviewed-by: Richard Henderson Signed-off-by: Bastian Koppelmann --- target-tricore/fpu_helper.c | 23 +++++++++++++++++++++++ target-tricore/helper.h | 1 + target-tricore/translate.c | 3 +++ 3 files changed, 27 insertions(+) diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c index 566529c..93d0e3c 100644 --- a/target-tricore/fpu_helper.c +++ b/target-tricore/fpu_helper.c @@ -156,3 +156,26 @@ uint32_t helper_fdiv(CPUTriCoreState *env, uint32_t r1, uint32_t r2) return (uint32_t)f_result; } + +uint32_t helper_fcmp(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint32_t result, flags; + float32 arg1 = make_float32(r1); + float32 arg2 = make_float32(r2); + + set_flush_inputs_to_zero(0, &env->fp_status); + + result = 1 << (float32_compare_quiet(arg1, arg2, &env->fp_status) + 1); + result |= f_is_denormal(arg1) << 4; + result |= f_is_denormal(arg2) << 5; + + flags = get_float_exception_flags(&env->fp_status); + if (flags) { + f_update_psw_flags(env, flags); + } else { + env->FPU_FS = 0; + } + + set_flush_inputs_to_zero(1, &env->fp_status); + return result; +} diff --git a/target-tricore/helper.h b/target-tricore/helper.h index f5eff36..489530f 100644 --- a/target-tricore/helper.h +++ b/target-tricore/helper.h @@ -109,6 +109,7 @@ DEF_HELPER_3(fadd, i32, env, i32, i32) DEF_HELPER_3(fsub, i32, env, i32, i32) DEF_HELPER_3(fmul, i32, env, i32, i32) DEF_HELPER_3(fdiv, i32, env, i32, i32) +DEF_HELPER_3(fcmp, i32, env, i32, i32) /* dvinit */ DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32) DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32) diff --git a/target-tricore/translate.c b/target-tricore/translate.c index 6adeebb..d1ddaad 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -6678,6 +6678,9 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) case OPC2_32_RR_DIV_F: gen_helper_fdiv(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]); break; + case OPC2_32_RR_CMP_F: + gen_helper_fcmp(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]); + break; default: generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC); }