From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57035) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cgVMP-0000Rw-SS for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cgVMM-0003e7-I1 for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:29 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:37648 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cgVMM-0003dN-BT for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:26 -0500 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1MBiEgQ079206 for ; Wed, 22 Feb 2017 06:45:25 -0500 Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [125.16.236.9]) by mx0b-001b2d01.pphosted.com with ESMTP id 28s9r3ruwg-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 22 Feb 2017 06:45:25 -0500 Received: from localhost by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 22 Feb 2017 17:15:22 +0530 From: Nikunj A Dadhania Date: Wed, 22 Feb 2017 17:14:41 +0530 In-Reply-To: <1487763883-4877-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1487763883-4877-1-git-send-email-nikunj@linux.vnet.ibm.com> Message-Id: <1487763883-4877-9-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v3 08/10] target/ppc: add ov32 flag for multiply low insns List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Cc: qemu-devel@nongnu.org, bharata@linux.vnet.ibm.com, nikunj@linux.vnet.ibm.com For Multiply Word: SO, OV, and OV32 bits reflects overflow of the 32-bit result For Multiply DoubleWord: SO, OV, and OV32 bits reflects overflow of the 64-bit result Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson --- target/ppc/translate.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 19e6292..ba3387e 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -1288,6 +1288,9 @@ static void gen_mullwo(DisasContext *ctx) tcg_gen_sari_i32(t0, t0, 31); tcg_gen_setcond_i32(TCG_COND_NE, t0, t0, t1); tcg_gen_extu_i32_tl(cpu_ov, t0); + if (is_isa300(ctx)) { + tcg_gen_mov_tl(cpu_ov32, cpu_ov); + } tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); tcg_temp_free_i32(t0); @@ -1349,6 +1352,9 @@ static void gen_mulldo(DisasContext *ctx) tcg_gen_sari_i64(t0, t0, 63); tcg_gen_setcond_i64(TCG_COND_NE, cpu_ov, t0, t1); + if (is_isa300(ctx)) { + tcg_gen_mov_tl(cpu_ov32, cpu_ov); + } tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); tcg_temp_free_i64(t0); -- 2.7.4