From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50848) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dHZSD-0008Mw-HB for qemu-devel@nongnu.org; Sun, 04 Jun 2017 13:36:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dHZSC-00048K-Cw for qemu-devel@nongnu.org; Sun, 04 Jun 2017 13:36:41 -0400 Received: from mail-pg0-x241.google.com ([2607:f8b0:400e:c05::241]:34521) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dHZSC-00047C-54 for qemu-devel@nongnu.org; Sun, 04 Jun 2017 13:36:40 -0400 Received: by mail-pg0-x241.google.com with SMTP id v14so3631532pgn.1 for ; Sun, 04 Jun 2017 10:36:39 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Sun, 4 Jun 2017 10:35:03 -0700 Message-Id: <20170604173509.29684-64-rth@twiddle.net> In-Reply-To: <20170604173509.29684-1-rth@twiddle.net> References: <20170604173509.29684-1-rth@twiddle.net> Subject: [Qemu-devel] [PULL 63/69] target/s390x: implement PACK UNICODE List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, aurelien@aurel32.net From: Aurelien Jarno Use a common helper with PACK ASCII as the differences are limited to the stride of the source operand. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno Message-Id: <20170531220129.27724-25-aurelien@aurel32.net> Signed-off-by: Richard Henderson --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 30 +++++++++++++++++++++--------- target/s390x/translate.c | 16 ++++++++++++++++ 4 files changed, 40 insertions(+), 9 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 7898064..5b61a0d 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -84,6 +84,7 @@ 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(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(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 41431af..16f788c 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -669,6 +669,8 @@ 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) +/* PACK UNICODE */ + C(0xe100, PKU, SS_f, E2, la1, a2, 0, 0, pku, 0) /* PREFETCH */ /* Implemented as nops of course. */ diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 425d4b6..d827a12 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -914,10 +914,9 @@ 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) +static inline void do_pkau(CPUS390XState *env, uint64_t dest, uint64_t src, + uint32_t srclen, int ssize, uintptr_t ra) { - uintptr_t ra = GETPC(); int i; /* The destination operand is always 16 bytes long. */ const int destlen = 16; @@ -932,16 +931,16 @@ void HELPER(pka)(CPUS390XState *env, uint64_t dest, uint64_t src, /* Start with a positive sign */ if (i == 0) { b = 0xc; - } else if (srclen > 1) { + } else if (srclen > ssize) { b = cpu_ldub_data_ra(env, src, ra) & 0x0f; - src--; - srclen--; + src -= ssize; + srclen -= ssize; } - if (srclen > 1) { + if (srclen > ssize) { b |= cpu_ldub_data_ra(env, src, ra) << 4; - src--; - srclen--; + src -= ssize; + srclen -= ssize; } cpu_stb_data_ra(env, dest, b, ra); @@ -949,6 +948,19 @@ void HELPER(pka)(CPUS390XState *env, uint64_t dest, uint64_t src, } } + +void HELPER(pka)(CPUS390XState *env, uint64_t dest, uint64_t src, + uint32_t srclen) +{ + do_pkau(env, dest, src, srclen, 1, GETPC()); +} + +void HELPER(pku)(CPUS390XState *env, uint64_t dest, uint64_t src, + uint32_t srclen) +{ + do_pkau(env, dest, src, srclen, 2, GETPC()); +} + 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 5093995..d8b0515 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -3317,6 +3317,22 @@ static ExitStatus op_pka(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_pku(DisasContext *s, DisasOps *o) +{ + int l2 = get_field(s->fields, l2) + 1; + TCGv_i32 l; + + /* The length must be even and should not exceed 64 bytes. */ + if ((l2 & 1) || (l2 > 64)) { + gen_program_exception(s, PGM_SPECIFICATION); + return EXIT_NORETURN; + } + l = tcg_const_i32(l2); + gen_helper_pku(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); -- 2.9.4