From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45099) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bN22F-000229-KO for qemu-devel@nongnu.org; Tue, 12 Jul 2016 14:03:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bN22C-0000Ef-Ch for qemu-devel@nongnu.org; Tue, 12 Jul 2016 14:03:55 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:26273) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bN22C-0000EO-3C for qemu-devel@nongnu.org; Tue, 12 Jul 2016 14:03:52 -0400 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6CI3lQ2038534 for ; Tue, 12 Jul 2016 14:03:51 -0400 Received: from e23smtp01.au.ibm.com (e23smtp01.au.ibm.com [202.81.31.143]) by mx0a-001b2d01.pphosted.com with ESMTP id 24507b4trk-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 12 Jul 2016 14:03:51 -0400 Received: from localhost by e23smtp01.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 13 Jul 2016 04:03:48 +1000 From: Nikunj A Dadhania Date: Tue, 12 Jul 2016 23:33:22 +0530 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> Message-Id: <1468346602-20700-7-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC 6/6] target-ppc: add modulo dword operations List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au Cc: qemu-devel@nongnu.org, aneesh.kumar@linux.vnet.ibm.com, benh@kernel.crashing.org, nikunj@linux.vnet.ibm.com Adding following instructions for ISA3.0 support modud: Modulo Unsigned Dword modsd: Modulo Signed Dword Signed-off-by: Nikunj A Dadhania --- target-ppc/translate.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index c505684..efc740a 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1226,6 +1226,49 @@ static void glue(gen_, name)(DisasContext *ctx) \ GEN_INT_ARITH_MODW(modsw, 0x18, 1); GEN_INT_ARITH_MODW(moduw, 0x08, 0); +#if defined(TARGET_PPC64) +static inline void gen_op_arith_modd(DisasContext *ctx, TCGv ret, TCGv arg1, + TCGv arg2, int sign) +{ + TCGLabel *l1 = gen_new_label(); + TCGLabel *l2 = gen_new_label(); + TCGv_i64 t0 = tcg_temp_local_new_i64(); + + tcg_gen_brcondi_i64(TCG_COND_EQ, arg2, 0, l1); + if (sign) { + TCGLabel *l3 = gen_new_label(); + tcg_gen_brcondi_i64(TCG_COND_NE, arg2, -1, l3); + tcg_gen_brcondi_i64(TCG_COND_EQ, arg1, INT64_MIN, l1); + gen_set_label(l3); + tcg_gen_div_i64(t0, arg1, arg2); + } else { + tcg_gen_divu_i64(t0, arg1, arg2); + } + tcg_gen_mul_i64(t0, t0, arg2); + tcg_gen_sub_i64(ret, arg1, t0); + tcg_gen_br(l2); + gen_set_label(l1); + if (sign) { + tcg_gen_sari_i64(ret, arg1, 63); + } else { + tcg_gen_movi_i64(ret, 0); + } + gen_set_label(l2); + tcg_temp_free_i64(t0); +} + +#define GEN_INT_ARITH_MODD(name, opc3, sign) \ +static void glue(gen_, name)(DisasContext *ctx) \ +{ \ + gen_op_arith_modd(ctx, cpu_gpr[rD(ctx->opcode)], \ + cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], \ + sign); \ +} + +GEN_INT_ARITH_MODD(modsd, 0x18, 1); +GEN_INT_ARITH_MODD(modud, 0x08, 0); +#endif + /* mulhw mulhw. */ static void gen_mulhw(DisasContext *ctx) { @@ -10308,6 +10351,8 @@ GEN_HANDLER_E(divdeu, 0x1F, 0x09, 0x0C, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divdeuo, 0x1F, 0x09, 0x1C, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divde, 0x1F, 0x09, 0x0D, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divdeo, 0x1F, 0x09, 0x1D, 0, PPC_NONE, PPC2_DIVE_ISA206), +GEN_HANDLER_E(modsd, 0x1F, 0x09, 0x18, 0x00000001, PPC_NONE, PPC2_ISA300), +GEN_HANDLER_E(modud, 0x1F, 0x09, 0x08, 0x00000001, PPC_NONE, PPC2_ISA300), #undef GEN_INT_ARITH_MUL_HELPER #define GEN_INT_ARITH_MUL_HELPER(name, opc3) \ -- 2.7.4