From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46155) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YzXCq-0003Os-JG for qemu-devel@nongnu.org; Mon, 01 Jun 2015 17:25:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YzXCo-0008JE-Ku for qemu-devel@nongnu.org; Mon, 01 Jun 2015 17:25:12 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:101::1]:56063) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YzXCo-0007qU-EK for qemu-devel@nongnu.org; Mon, 01 Jun 2015 17:25:10 -0400 From: Aurelien Jarno Date: Mon, 1 Jun 2015 23:24:53 +0200 Message-Id: <1433193897-24110-10-git-send-email-aurelien@aurel32.net> In-Reply-To: <1433193897-24110-1-git-send-email-aurelien@aurel32.net> References: <1433193897-24110-1-git-send-email-aurelien@aurel32.net> Subject: [Qemu-devel] [PATCH 09/13] target-s390x: implement TRANSLATE EXTENDED instruction List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexander Graf , Aurelien Jarno , Richard Henderson It is part of the basic zArchitecture instructions. Cc: Alexander Graf Cc: Richard Henderson Signed-off-by: Aurelien Jarno --- target-s390x/helper.h | 1 + target-s390x/insn-data.def | 2 ++ target-s390x/mem_helper.c | 39 +++++++++++++++++++++++++++++++++++++++ target-s390x/translate.c | 12 ++++++++++++ 4 files changed, 54 insertions(+) diff --git a/target-s390x/helper.h b/target-s390x/helper.h index 48b015e..68f0b67 100644 --- a/target-s390x/helper.h +++ b/target-s390x/helper.h @@ -77,6 +77,7 @@ 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(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_3(tre, void, env, i32, i32) DEF_HELPER_4(trt, i32, env, i32, i64, i64) DEF_HELPER_4(cksm, i64, env, i64, i64, i64) DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64) diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def index 2a7ecbd..faaedf8 100644 --- a/target-s390x/insn-data.def +++ b/target-s390x/insn-data.def @@ -761,6 +761,8 @@ C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0) /* TRANSLATE AND TEST */ C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0) +/* TRANSLATE EXTENDED */ + C(0xb2a5, TRE, RRE, Z, 0, 0, 0, 0, tre, 0) /* UNPACK */ /* Really format SS_b, but we pack both lengths into one argument diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c index e19e1aa..9fe9ed7 100644 --- a/target-s390x/mem_helper.c +++ b/target-s390x/mem_helper.c @@ -804,6 +804,45 @@ void HELPER(tr)(CPUS390XState *env, uint32_t len, uint64_t array, } } +void HELPER(tre)(CPUS390XState *env, uint32_t r1, uint32_t r2) +{ + uint8_t end = env->regs[0] & 0xff; + uint64_t array = env->regs[r1]; + uint64_t len = env->regs[r1 + 1]; + uint64_t trans = env->regs[r2]; + uint64_t i; + + if (!(env->psw.mask & PSW_MASK_64)) { + array &= 0x7fffffff; + len = (uint32_t)len; + } + + /* Lest we fail to service interrupts in a timely manner, limit the + amount of work we're willing to do. For now, let's cap at 8k. */ + if (len > 0x2000) { + len = 0x2000; + env->cc_op = 3; + } else { + env->cc_op = 0; + } + + for (i = 0; i < len; i++) { + uint8_t byte, new_byte; + + byte = cpu_ldub_data(env, array + i); + + if (byte == end) { + env->cc_op = 1; + break; + } + + new_byte = cpu_ldub_data(env, trans + byte); + cpu_stb_data(env, array + i, new_byte); + } + env->regs[r1] = array + i; + env->regs[r1 + 1] -= i; +} + uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array, uint64_t trans) { diff --git a/target-s390x/translate.c b/target-s390x/translate.c index 003598d..db29993 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -3787,6 +3787,18 @@ static ExitStatus op_tr(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_tre(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2)); + potential_page_fault(s); + gen_helper_tre(cpu_env, r1, r2); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r2); + set_cc_static(s); + return NO_EXIT; +} + static ExitStatus op_trt(DisasContext *s, DisasOps *o) { TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1)); -- 2.1.4