From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49882) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cgTGP-0000qb-Tp for qemu-devel@nongnu.org; Wed, 22 Feb 2017 04:31:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cgTGK-0006YG-B2 for qemu-devel@nongnu.org; Wed, 22 Feb 2017 04:31:09 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45563) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cgTGK-0006XT-2g for qemu-devel@nongnu.org; Wed, 22 Feb 2017 04:31:04 -0500 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1M9Sr3v054512 for ; Wed, 22 Feb 2017 04:31:03 -0500 Received: from e23smtp01.au.ibm.com (e23smtp01.au.ibm.com [202.81.31.143]) by mx0a-001b2d01.pphosted.com with ESMTP id 28rq82fkv0-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 22 Feb 2017 04:31:02 -0500 Received: from localhost by e23smtp01.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 22 Feb 2017 19:31:00 +1000 From: Nikunj A Dadhania Date: Wed, 22 Feb 2017 14:59:41 +0530 In-Reply-To: <1487755788-16415-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1487755788-16415-1-git-send-email-nikunj@linux.vnet.ibm.com> Message-Id: <1487755788-16415-5-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v2 04/11] target/ppc: update ca32 in arithmetic add 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 Adds routine to compute ca32 - gen_op_arith_compute_ca32 For 64-bit mode use the compute ca32 routine. While for 32-bit mode, CA and CA32 will have same value. Signed-off-by: Nikunj A Dadhania --- target/ppc/translate.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index c9f6768..b589d09 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -816,6 +816,23 @@ static inline void gen_op_arith_compute_ov(DisasContext *ctx, TCGv arg0, tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); } +static inline void gen_op_arith_compute_ca32(DisasContext *ctx, + TCGv res, TCGv arg0, TCGv arg1, + int add_ca, int sub) +{ + TCGv t0; + + if (!is_isa300(ctx)) { + return; + } + + t0 = tcg_temp_new(); + tcg_gen_xor_tl(t0, arg0, arg1); + tcg_gen_xor_tl(t0, t0, res); + tcg_gen_extract_tl(cpu_ca32, t0, 32, 1); + tcg_temp_free(t0); +} + /* Common add function */ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, TCGv arg2, bool add_ca, bool compute_ca, @@ -842,6 +859,7 @@ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, tcg_temp_free(t1); tcg_gen_shri_tl(cpu_ca, cpu_ca, 32); /* extract bit 32 */ tcg_gen_andi_tl(cpu_ca, cpu_ca, 1); + tcg_gen_mov_tl(cpu_ca32, cpu_ca); } else { TCGv zero = tcg_const_tl(0); if (add_ca) { @@ -850,6 +868,7 @@ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, } else { tcg_gen_add2_tl(t0, cpu_ca, arg1, zero, arg2, zero); } + gen_op_arith_compute_ca32(ctx, t0, arg1, arg2, add_ca, 0); tcg_temp_free(zero); } } else { -- 2.7.4