From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48030) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh7E2-0000mp-MS for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:39:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bh7Dx-0006zy-19 for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:39:05 -0400 From: David Gibson Date: Tue, 6 Sep 2016 13:39:57 +1000 Message-Id: <1473133253-17598-11-git-send-email-david@gibson.dropbear.id.au> In-Reply-To: <1473133253-17598-1-git-send-email-david@gibson.dropbear.id.au> References: <1473133253-17598-1-git-send-email-david@gibson.dropbear.id.au> Subject: [Qemu-devel] [PULL 10/66] target-ppc: add cnttzw[.] instruction List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linearo.org Cc: agraf@suse.de, qemu-devel@nongnu.org, qemu-ppc@nongnu.org, Nikunj A Dadhania , David Gibson From: Nikunj A Dadhania Add ISA3.0: Count trailing zeros word instruction. Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson Signed-off-by: David Gibson --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 5 +++++ target-ppc/translate.c | 11 +++++++++++ 3 files changed, 17 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 0c29c01..9c79808 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -38,6 +38,7 @@ DEF_HELPER_4(divweu, tl, env, tl, tl, i32) DEF_HELPER_4(divwe, tl, env, tl, tl, i32) DEF_HELPER_FLAGS_1(cntlzw, TCG_CALL_NO_RWG_SE, tl, tl) +DEF_HELPER_FLAGS_1(cnttzw, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(popcntb, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_1(popcntw, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_FLAGS_2(cmpb, TCG_CALL_NO_RWG_SE, tl, tl, tl) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 93e8dfa..02b6df3 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -145,6 +145,11 @@ target_ulong helper_cntlzw(target_ulong t) return clz32(t); } +target_ulong helper_cnttzw(target_ulong t) +{ + return ctz32(t); +} + #if defined(TARGET_PPC64) target_ulong helper_cntlzd(target_ulong t) { diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 8eea692..b248453 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1583,6 +1583,16 @@ static void gen_cntlzw(DisasContext *ctx) if (unlikely(Rc(ctx->opcode) != 0)) gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]); } + +/* cnttzw */ +static void gen_cnttzw(DisasContext *ctx) +{ + gen_helper_cnttzw(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]); + if (unlikely(Rc(ctx->opcode) != 0)) { + gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]); + } +} + /* eqv & eqv. */ GEN_LOGICAL2(eqv, tcg_gen_eqv_tl, 0x08, PPC_INTEGER); /* extsb & extsb. */ @@ -10057,6 +10067,7 @@ GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER2(andi_, "andi.", 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER2(andis_, "andis.", 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(cntlzw, 0x1F, 0x1A, 0x00, 0x00000000, PPC_INTEGER), +GEN_HANDLER_E(cnttzw, 0x1F, 0x1A, 0x10, 0x00000000, PPC_NONE, PPC2_ISA300), GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER), GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER), GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), -- 2.7.4