From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51636) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bQsYv-0002Xg-Gz for qemu-devel@nongnu.org; Sat, 23 Jul 2016 04:45:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bQsYr-0007I5-Qg for qemu-devel@nongnu.org; Sat, 23 Jul 2016 04:45:32 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:60860) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bQsYr-0007Hx-Gq for qemu-devel@nongnu.org; Sat, 23 Jul 2016 04:45:29 -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 u6N8hfZ0095901 for ; Sat, 23 Jul 2016 04:45:28 -0400 Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) by mx0a-001b2d01.pphosted.com with ESMTP id 24c1ff517g-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sat, 23 Jul 2016 04:45:28 -0400 Received: from localhost by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 23 Jul 2016 18:45:26 +1000 From: Nikunj A Dadhania Date: Sat, 23 Jul 2016 14:14:45 +0530 In-Reply-To: <1469263490-19130-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1469263490-19130-1-git-send-email-nikunj@linux.vnet.ibm.com> Message-Id: <1469263490-19130-9-git-send-email-nikunj@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC v2 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, rth@twiddle.net Cc: qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, bharata@linux.vnet.ibm.com, aneesh.kumar@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 | 11 +++++++++++ 3 files changed, 17 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 8a3eb5d..3b3dc36 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 1d02e8a..ac47230 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -160,6 +160,11 @@ target_ulong helper_cntlzw(target_ulong t) return clz32(t); } +target_ulong helper_cnttzw(target_ulong t) +{ + return ctz32(t); +} + #if defined(TARGET_PPC64) uint64_t helper_modsd(uint64_t rau, uint64_t rbu) { diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 1fc1922..c28ddff 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1520,6 +1520,16 @@ 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. */ @@ -9994,6 +10004,7 @@ 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