From patchwork Thu May 25 21:05:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 9749185 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C923660388 for ; Thu, 25 May 2017 21:21:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BAC942835B for ; Thu, 25 May 2017 21:21:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AFBB5283CD; Thu, 25 May 2017 21:21:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2A92D2836F for ; Thu, 25 May 2017 21:21:44 +0000 (UTC) Received: from localhost ([::1]:33757 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dE0CV-0005IG-Cw for patchwork-qemu-devel@patchwork.kernel.org; Thu, 25 May 2017 17:21:43 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55321) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDzwe-0005h4-Ah for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDzwc-0001Nq-0m for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:20 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:100::1]:37494) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dDzwb-0001Ms-PG for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:17 -0400 Received: from [2001:bc8:30d7:121:cc44:2c6c:4d9c:42c0] (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 1dDzwZ-0008SO-QO; Thu, 25 May 2017 23:05:16 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.89) (envelope-from ) id 1dDzwX-0001L8-CD; Thu, 25 May 2017 23:05:13 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Thu, 25 May 2017 23:05:05 +0200 Message-Id: <20170525210508.4910-24-aurelien@aurel32.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170525210508.4910-1-aurelien@aurel32.net> References: <20170525210508.4910-1-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 23/26] target/s390x: implement UNPACK UNICODE 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Aurelien Jarno Reviewed-by: Richard Henderson --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 50 ++++++++++++++++++++++++++++++++++++---------- target/s390x/translate.c | 18 +++++++++++++++++ 4 files changed, 61 insertions(+), 10 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index ffc0588e83..8d94018a3f 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -87,6 +87,7 @@ DEF_HELPER_FLAGS_4(pka, TCG_CALL_NO_WG, void, env, i64, i64, i32) DEF_HELPER_FLAGS_4(pku, 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(unpka, TCG_CALL_NO_WG, i32, env, i64, i32, i64) +DEF_HELPER_FLAGS_4(unpku, TCG_CALL_NO_WG, i32, env, i64, i32, i64) DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_4(tre, i64, env, i64, i64, i64) DEF_HELPER_4(trt, i32, env, i32, i64, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index b0c0ea6687..56928c24a5 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -871,6 +871,8 @@ C(0xf300, UNPK, SS_a, Z, la1, a2, 0, 0, unpk, 0) /* UNPACK ASCII */ C(0xea00, UNPKA, SS_a, E2, la1, a2, 0, 0, unpka, 0) +/* UNPACK UNICODE */ + C(0xe200, UNPKU, SS_a, E2, la1, a2, 0, 0, unpku, 0) #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index aaabc63000..3366c2e799 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -93,6 +93,23 @@ static inline uint64_t cpu_ldusize_data_ra(CPUS390XState *env, uint64_t addr, } } +/* Store a to memory according to its size. */ +static inline void cpu_stsize_data_ra(CPUS390XState *env, uint64_t addr, + uint64_t value, int wordsize, + uintptr_t ra) +{ + switch (wordsize) { + case 1: + cpu_stb_data_ra(env, addr, value, ra); + break; + case 2: + cpu_stw_data_ra(env, addr, value, ra); + break; + default: + abort(); + } +} + static void fast_memset(CPUS390XState *env, uint64_t dest, uint8_t byte, uint32_t l, uintptr_t ra) { @@ -1053,10 +1070,10 @@ void HELPER(unpk)(CPUS390XState *env, uint32_t len, uint64_t dest, } } -uint32_t HELPER(unpka)(CPUS390XState *env, uint64_t dest, uint32_t destlen, - uint64_t src) +static inline uint32_t do_unpkau(CPUS390XState *env, uint64_t dest, + uint32_t destlen, int dsize, uint64_t src, + uintptr_t ra) { - uintptr_t ra = GETPC(); int i; uint32_t cc; uint8_t b; @@ -1065,7 +1082,7 @@ uint32_t HELPER(unpka)(CPUS390XState *env, uint64_t dest, uint32_t destlen, /* The operands are processed from right to left. */ src += srclen - 1; - dest += destlen - 1; + dest += destlen - dsize; /* Check for the sign. */ b = cpu_ldub_data_ra(env, src, ra); @@ -1087,23 +1104,36 @@ uint32_t HELPER(unpka)(CPUS390XState *env, uint64_t dest, uint32_t destlen, } /* Now pad every nibble with 0x30, advancing one nibble at a time. */ - for (i = 0; i < destlen; i++) { - if (i == 31) { - /* If length is 32 bytes, the leftmost byte is 0. */ + for (i = 0; i < destlen; i += dsize) { + if (i == (31 * dsize)) { + /* If length is 32/64 bytes, the leftmost byte is 0. */ b = 0; - } else if (i % 2) { + } else if (i % (2 * dsize)) { b = cpu_ldub_data_ra(env, src, ra); src--; } else { b >>= 4; } - cpu_stb_data_ra(env, dest, 0x30 + (b & 0xf), ra); - dest--; + cpu_stsize_data_ra(env, dest, 0x30 + (b & 0xf), dsize, ra); + dest -= dsize; } return cc; } + +uint32_t HELPER(unpka)(CPUS390XState *env, uint64_t dest, uint32_t destlen, + uint64_t src) +{ + return do_unpkau(env, dest, destlen, 1, src, GETPC()); +} + +uint32_t HELPER(unpku)(CPUS390XState *env, uint64_t dest, uint32_t destlen, + uint64_t src) +{ + return do_unpkau(env, dest, destlen, 2, src, GETPC()); +} + static void do_helper_tr(CPUS390XState *env, uint32_t len, uint64_t array, uint64_t trans, uintptr_t ra) { diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 590ff96301..d9a6a92984 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -4312,6 +4312,24 @@ static ExitStatus op_unpka(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_unpku(DisasContext *s, DisasOps *o) +{ + int l1 = get_field(s->fields, l1) + 1; + TCGv_i32 l; + + /* The length must be even and should not exceed 64 bytes. */ + if ((l1 & 1) || (l1 > 64)) { + gen_program_exception(s, PGM_SPECIFICATION); + return EXIT_NORETURN; + } + l = tcg_const_i32(l1); + gen_helper_unpku(cc_op, cpu_env, o->addr1, l, o->in2); + tcg_temp_free_i32(l); + set_cc_static(s); + return NO_EXIT; +} + + static ExitStatus op_xc(DisasContext *s, DisasOps *o) { int d1 = get_field(s->fields, d1);