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Violators will be prosecuted; Wed, 13 Jul 2016 04:03:43 +1000 X-IBM-Helo: d23dlp02.au.ibm.com X-IBM-MailFrom: nikunj@linux.vnet.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org;qemu-ppc@nongnu.org Received: from d23relay07.au.ibm.com (d23relay07.au.ibm.com [9.190.26.37]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 1FEBC2BB0059; Wed, 13 Jul 2016 04:03:43 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay07.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u6CI3hH610617058; Wed, 13 Jul 2016 04:03:43 +1000 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u6CI3gag030553; Wed, 13 Jul 2016 04:03:42 +1000 Received: from abhimanyu.in.ibm.com ([9.84.216.33]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u6CI3O5f030164; Wed, 13 Jul 2016 04:03:40 +1000 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au Date: Tue, 12 Jul 2016 23:33:21 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1468346602-20700-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1468346602-20700-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16071218-1617-0000-0000-00000139AE28 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16071218-1618-0000-0000-00004642B045 Message-Id: <1468346602-20700-6-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-07-12_08:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=2 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1607120160 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [RFC 5/6] target-ppc: add modulo word operations 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: qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Adding following instructions: moduw: Modulo Unsigned Word modsw: Modulo Signed Word Signed-off-by: Nikunj A Dadhania --- target-ppc/translate.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 8de217f..c505684 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1178,6 +1178,54 @@ GEN_DIVE(divde, divde, 0); GEN_DIVE(divdeo, divde, 1); #endif +static inline void gen_op_arith_modw(DisasContext *ctx, TCGv ret, TCGv arg1, + TCGv arg2, int sign) +{ + TCGLabel *l1 = gen_new_label(); + TCGLabel *l2 = gen_new_label(); + TCGv_i32 t0 = tcg_temp_local_new_i32(); + TCGv_i32 t1 = tcg_temp_local_new_i32(); + TCGv_i32 t2 = tcg_temp_local_new_i32(); + + tcg_gen_trunc_tl_i32(t0, arg1); + tcg_gen_trunc_tl_i32(t1, arg2); + tcg_gen_brcondi_i32(TCG_COND_EQ, t1, 0, l1); + if (sign) { + TCGLabel *l3 = gen_new_label(); + tcg_gen_brcondi_i32(TCG_COND_NE, t1, -1, l3); + tcg_gen_brcondi_i32(TCG_COND_EQ, t0, INT32_MIN, l1); + gen_set_label(l3); + tcg_gen_div_i32(t2, t0, t1); + } else { + tcg_gen_divu_i32(t2, t0, t1); + } + tcg_gen_mul_i32(t2, t2, t1); + tcg_gen_sub_i32(t2, t0, t2); + tcg_gen_br(l2); + gen_set_label(l1); + if (sign) { + tcg_gen_sari_i32(t2, t0, 31); + } else { + tcg_gen_movi_i32(t2, 0); + } + gen_set_label(l2); + tcg_gen_extu_i32_tl(ret, t2); + tcg_temp_free_i32(t0); + tcg_temp_free_i32(t1); + tcg_temp_free_i32(t2); +} + +#define GEN_INT_ARITH_MODW(name, opc3, sign) \ +static void glue(gen_, name)(DisasContext *ctx) \ +{ \ + gen_op_arith_modw(ctx, cpu_gpr[rD(ctx->opcode)], \ + cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], \ + sign); \ +} + +GEN_INT_ARITH_MODW(modsw, 0x18, 1); +GEN_INT_ARITH_MODW(moduw, 0x08, 0); + /* mulhw mulhw. */ static void gen_mulhw(DisasContext *ctx) { @@ -10244,6 +10292,8 @@ GEN_HANDLER_E(divwe, 0x1F, 0x0B, 0x0D, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweo, 0x1F, 0x0B, 0x1D, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweu, 0x1F, 0x0B, 0x0C, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweuo, 0x1F, 0x0B, 0x1C, 0, PPC_NONE, PPC2_DIVE_ISA206), +GEN_HANDLER_E(modsw, 0x1F, 0x0B, 0x18, 0x00000001, PPC_NONE, PPC2_ISA300), +GEN_HANDLER_E(moduw, 0x1F, 0x0B, 0x08, 0x00000001, PPC_NONE, PPC2_ISA300), #if defined(TARGET_PPC64) #undef GEN_INT_ARITH_DIVD