From patchwork Mon May 29 19:24:34 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 768319 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wc6Pv0f9Fz9s72 for ; Tue, 30 May 2017 05:34:43 +1000 (AEST) Received: from localhost ([::1]:50198 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFQR6-0005oP-J1 for incoming@patchwork.ozlabs.org; Mon, 29 May 2017 15:34:40 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38951) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFQHf-0006UQ-07 for qemu-devel@nongnu.org; Mon, 29 May 2017 15:24:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dFQHa-00076S-Ru for qemu-devel@nongnu.org; Mon, 29 May 2017 15:24:54 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:100::1]:42948) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dFQHa-00073F-L8 for qemu-devel@nongnu.org; Mon, 29 May 2017 15:24:50 -0400 Received: from [2001:bc8:30d7:120:9bb5:8936:7e6a:9e36] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1dFQHZ-0007Mm-5J; Mon, 29 May 2017 21:24:49 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.89) (envelope-from ) id 1dFQHW-0001cO-G3; Mon, 29 May 2017 21:24:46 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Mon, 29 May 2017 21:24:34 +0200 Message-Id: <20170529192440.5990-24-aurelien@aurel32.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170529192440.5990-1-aurelien@aurel32.net> References: <20170529192440.5990-1-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:bc8:30d7:100::1 Subject: [Qemu-devel] [PATCH v2 23/29] target/s390x: implement PACK ASCII 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: Alexander Graf , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 35 +++++++++++++++++++++++++++++++++++ target/s390x/translate.c | 16 ++++++++++++++++ 4 files changed, 54 insertions(+) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index bc6e97de1f..9d6b59d3cc 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -83,6 +83,7 @@ DEF_HELPER_FLAGS_2(sqdb, TCG_CALL_NO_WG, i64, env, i64) DEF_HELPER_FLAGS_3(sqxb, TCG_CALL_NO_WG, i64, env, i64, i64) DEF_HELPER_FLAGS_1(cvd, TCG_CALL_NO_RWG_SE, i64, s32) DEF_HELPER_FLAGS_4(pack, TCG_CALL_NO_WG, void, env, i32, i64, i64) +DEF_HELPER_FLAGS_4(pka, TCG_CALL_NO_WG, void, env, i64, i64, i32) DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_4(tre, i64, env, i64, i64, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index e3b7b78834..41431affe6 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -667,6 +667,8 @@ /* Really format SS_b, but we pack both lengths into one argument for the helper call, so we might as well leave one 8-bit field. */ C(0xf200, PACK, SS_a, Z, la1, a2, 0, 0, pack, 0) +/* PACK ASCII */ + C(0xe900, PKA, SS_f, E2, la1, a2, 0, 0, pka, 0) /* PREFETCH */ /* Implemented as nops of course. */ diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 3d97d250d7..01d6734860 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -914,6 +914,41 @@ void HELPER(pack)(CPUS390XState *env, uint32_t len, uint64_t dest, uint64_t src) } } +void HELPER(pka)(CPUS390XState *env, uint64_t dest, uint64_t src, + uint32_t srclen) +{ + uintptr_t ra = GETPC(); + int i; + /* The destination operand is always 16 bytes long. */ + const int destlen = 16; + + /* The operands are processed from right to left. */ + src += srclen - 1; + dest += destlen - 1; + + for (i = 0; i < destlen; i++) { + uint8_t b = 0; + + /* Start with a positive sign */ + if (i == 0) { + b = 0xc; + } else if (srclen > 1) { + b = cpu_ldub_data_ra(env, src, ra) & 0x0f; + src--; + srclen--; + } + + if (srclen > 1) { + b |= cpu_ldub_data_ra(env, src, ra) << 4; + src--; + srclen--; + } + + cpu_stb_data_ra(env, dest, b, ra); + dest--; + } +} + void HELPER(unpk)(CPUS390XState *env, uint32_t len, uint64_t dest, uint64_t src) { diff --git a/target/s390x/translate.c b/target/s390x/translate.c index b160a0cad7..5093995f9a 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -3301,6 +3301,22 @@ static ExitStatus op_pack(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_pka(DisasContext *s, DisasOps *o) +{ + int l2 = get_field(s->fields, l2) + 1; + TCGv_i32 l; + + /* The length must not exceed 32 bytes. */ + if (l2 > 32) { + gen_program_exception(s, PGM_SPECIFICATION); + return EXIT_NORETURN; + } + l = tcg_const_i32(l2); + gen_helper_pka(cpu_env, o->addr1, o->in2, l); + tcg_temp_free_i32(l); + return NO_EXIT; +} + static ExitStatus op_popcnt(DisasContext *s, DisasOps *o) { gen_helper_popcnt(o->out, o->in2);