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Violators will be prosecuted; Mon, 8 Aug 2016 03:37:07 +1000 X-IBM-Helo: d23dlp01.au.ibm.com X-IBM-MailFrom: nikunj@linux.vnet.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org;qemu-ppc@nongnu.org Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 977352CE8054; Mon, 8 Aug 2016 03:37:06 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u77Hb6gA29950138; Mon, 8 Aug 2016 03:37:06 +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 u77Hb6MU020657; Mon, 8 Aug 2016 03:37:06 +1000 Received: from abhimanyu.in.ibm.com ([9.124.218.68]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u77Hax54020568; Mon, 8 Aug 2016 03:37:04 +1000 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Date: Sun, 7 Aug 2016 23:06:51 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1470591415-3268-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1470591415-3268-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16080717-0048-0000-0000-000001A97352 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16080717-0049-0000-0000-000046498DFC Message-Id: <1470591415-3268-3-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-08-07_10:, , 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-1608070208 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 2/6] target-ppc: Implement darn instruction 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, Ravi Bangoria Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Ravi Bangoria darn: Deliver A Random Number For both CRN and RRN, returning 64-bit random number. Signed-off-by: Ravi Bangoria Signed-off-by: Nikunj A Dadhania --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 14 ++++++++++++++ target-ppc/translate.c | 11 +++++++++++ 3 files changed, 26 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 8eada2f..257bfca 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -50,6 +50,7 @@ DEF_HELPER_FLAGS_1(cnttzd, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(popcntd, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_2(bpermd, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_3(srad, tl, env, tl, tl) +DEF_HELPER_1(darn, tl, i32) #endif DEF_HELPER_FLAGS_1(cntlsw32, TCG_CALL_NO_RWG_SE, i32, i32) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 552b2e0..2b9fe13 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -182,6 +182,20 @@ target_ulong helper_cnttzd(target_ulong t) { return ctz64(t); } + +target_ulong helper_darn(uint32_t l) +{ + target_ulong r = UINT64_MAX; + + if (l <= 2) { + do { + r = random() * random(); + r &= l ? UINT64_MAX : UINT32_MAX; + } while (r == UINT64_MAX); + } + + return r; +} #endif #if defined(TARGET_PPC64) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 2a87d1a..6a79fc1 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -526,6 +526,8 @@ EXTRACT_HELPER(FPW, 16, 1); /* addpcis */ EXTRACT_HELPER_DXFORM(DX, 10, 6, 6, 5, 16, 1, 1, 0, 0) +/* darn */ +EXTRACT_HELPER(L, 16, 2); /*** Jump target decoding ***/ /* Immediate address */ @@ -1893,6 +1895,14 @@ static void gen_cnttzd(DisasContext *ctx) gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]); } } + +/* darn */ +static void gen_darn(DisasContext *ctx) +{ + TCGv_i32 l = tcg_const_i32(L(ctx->opcode)); + gen_helper_darn(cpu_gpr[rD(ctx->opcode)], l); + tcg_temp_free_i32(l); +} #endif /*** Integer rotate ***/ @@ -6238,6 +6248,7 @@ GEN_HANDLER_E(prtyw, 0x1F, 0x1A, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA205), GEN_HANDLER(popcntd, 0x1F, 0x1A, 0x0F, 0x0000F801, PPC_POPCNTWD), GEN_HANDLER(cntlzd, 0x1F, 0x1A, 0x01, 0x00000000, PPC_64B), GEN_HANDLER_E(cnttzd, 0x1F, 0x1A, 0x11, 0x00000000, PPC_NONE, PPC2_ISA300), +GEN_HANDLER_E(darn, 0x1F, 0x13, 0x17, 0x001CF801, PPC_NONE, PPC2_ISA300), GEN_HANDLER_E(prtyd, 0x1F, 0x1A, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA205), GEN_HANDLER_E(bpermd, 0x1F, 0x1C, 0x07, 0x00000001, PPC_NONE, PPC2_PERM_ISA206), #endif