From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44207) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBzB-00058Z-2P for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bPBz6-0006jj-Ce for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:40 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:37598) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBz5-0006jC-J0 for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:35 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6IGx3N9059328 for ; Mon, 18 Jul 2016 13:05:35 -0400 Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [125.16.236.7]) by mx0a-001b2d01.pphosted.com with ESMTP id 24827f8c6w-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 18 Jul 2016 13:05:34 -0400 Received: from localhost by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 18 Jul 2016 22:35:31 +0530 From: Nikunj A Dadhania Date: Mon, 18 Jul 2016 22:35:09 +0530 In-Reply-To: <1468861517-2508-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1468861517-2508-1-git-send-email-nikunj@linux.vnet.ibm.com> Message-Id: <1468861517-2508-6-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC v1 05/13] target-ppc: add modulo word 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: moduw: Modulo Unsigned Word modsw: Modulo Signed Word Signed-off-by: Nikunj A Dadhania --- target-ppc/translate.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index d44f7af..487dd94 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1178,6 +1178,52 @@ 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_rem_i32(t2, t0, t1); + } else { + tcg_gen_remu_i32(t2, t0, t1); + } + 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 +10290,8 @@ 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 -- 2.7.4