From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44275) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBzH-0005E8-Cn for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bPBzC-0006lM-8V for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:46 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:9712 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBzB-0006lD-Sa for qemu-devel@nongnu.org; Mon, 18 Jul 2016 13:05:42 -0400 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6IGx3AR006378 for ; Mon, 18 Jul 2016 13:05:41 -0400 Received: from e28smtp06.in.ibm.com (e28smtp06.in.ibm.com [125.16.236.6]) by mx0b-001b2d01.pphosted.com with ESMTP id 24822bycb5-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 18 Jul 2016 13:05:41 -0400 Received: from localhost by e28smtp06.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 18 Jul 2016 22:35:38 +0530 From: Nikunj A Dadhania Date: Mon, 18 Jul 2016 22:35:12 +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: <1468861517-2508-9-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC v1 08/13] target-ppc: add cnttzw[.] instruction 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 Add ISA3.0: Count trailing zeros word instruction. Signed-off-by: Nikunj A Dadhania --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 5 +++++ target-ppc/translate.c | 10 ++++++++++ 3 files changed, 16 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 0c29c01..9c79808 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -38,6 +38,7 @@ DEF_HELPER_4(divweu, tl, env, tl, tl, i32) DEF_HELPER_4(divwe, tl, env, tl, tl, i32) DEF_HELPER_FLAGS_1(cntlzw, TCG_CALL_NO_RWG_SE, tl, tl) +DEF_HELPER_FLAGS_1(cnttzw, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(popcntb, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(popcntw, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_2(cmpb, TCG_CALL_NO_RWG_SE, tl, tl, tl) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 93e8dfa..02b6df3 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -145,6 +145,11 @@ target_ulong helper_cntlzw(target_ulong t) return clz32(t); } +target_ulong helper_cnttzw(target_ulong t) +{ + return ctz32(t); +} + #if defined(TARGET_PPC64) target_ulong helper_cntlzd(target_ulong t) { diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 5f38080..a57f7dd 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1580,6 +1580,15 @@ static void gen_cntlzw(DisasContext *ctx) if (unlikely(Rc(ctx->opcode) != 0)) gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]); } + +/* cnttzw */ +static void gen_cnttzw(DisasContext *ctx) +{ + gen_helper_cnttzw(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]); + if (unlikely(Rc(ctx->opcode) != 0)) + gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]); +} + /* eqv & eqv. */ GEN_LOGICAL2(eqv, tcg_gen_eqv_tl, 0x08, PPC_INTEGER); /* extsb & extsb. */ @@ -10053,6 +10062,7 @@ GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER2(andi_, "andi.", 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER2(andis_, "andis.", 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(cntlzw, 0x1F, 0x1A, 0x00, 0x00000000, PPC_INTEGER), +GEN_HANDLER_E(cnttzw, 0x1F, 0x1A, 0x10, 0x00000000, PPC_NONE, PPC2_ISA300), GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER), GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER), GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), -- 2.7.4