From nobody Tue Feb 10 17:45:12 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624534436434808.330591879376; Thu, 24 Jun 2021 04:33:56 -0700 (PDT) Received: from localhost ([::1]:57018 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lwNcJ-0003vd-9P for importer@patchew.org; Thu, 24 Jun 2021 07:33:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43898) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lwNB3-0000O3-ED; Thu, 24 Jun 2021 07:05:45 -0400 Received: from out28-218.mail.aliyun.com ([115.124.28.218]:44612) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lwNB0-0002YW-KX; Thu, 24 Jun 2021 07:05:45 -0400 Received: from roman-VirtualBox.hz.ali.com(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.KXKLpgj_1624532736) by smtp.aliyun-inc.com(10.147.41.199); Thu, 24 Jun 2021 19:05:36 +0800 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07630034|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.797667-0.00574743-0.196586; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047193; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.KXKLpgj_1624532736; From: LIU Zhiwei To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 18/37] target/riscv: Signed 16-bit Multiply 64-bit Add/Subtract Instructions Date: Thu, 24 Jun 2021 18:55:02 +0800 Message-Id: <20210624105521.3964-19-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210624105521.3964-1-zhiwei_liu@c-sky.com> References: <20210624105521.3964-1-zhiwei_liu@c-sky.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=115.124.28.218; envelope-from=zhiwei_liu@c-sky.com; helo=out28-218.mail.aliyun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: palmer@dabbelt.com, bin.meng@windriver.com, Alistair.Francis@wdc.com, LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" "16x16" with 64-bit Signed Addition(64 =3D 64 + 16x16). Signed-off-by: LIU Zhiwei --- target/riscv/helper.h | 2 + target/riscv/insn32.decode | 2 + target/riscv/insn_trans/trans_rvp.c.inc | 51 +++++++++++++++++++++++++ target/riscv/packed_helper.c | 25 ++++++++++++ 4 files changed, 80 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 5aac6ba578..a37b023c53 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1316,3 +1316,5 @@ DEF_HELPER_4(kmadrs, tl, env, tl, tl, tl) DEF_HELPER_4(kmaxds, tl, env, tl, tl, tl) DEF_HELPER_4(kmsda, tl, env, tl, tl, tl) DEF_HELPER_4(kmsxda, tl, env, tl, tl, tl) + +DEF_HELPER_3(smal, i64, env, i64, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index f590880750..233df941b4 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -919,3 +919,5 @@ kmadrs 0110110 ..... ..... 001 ..... 1110111 @r kmaxds 0111110 ..... ..... 001 ..... 1110111 @r kmsda 0100110 ..... ..... 001 ..... 1110111 @r kmsxda 0100111 ..... ..... 001 ..... 1110111 @r + +smal 0101111 ..... ..... 001 ..... 1110111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_tr= ans/trans_rvp.c.inc index 308fc223db..8b0728fc5a 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -451,3 +451,54 @@ GEN_RVP_R_ACC_OOL(kmadrs); GEN_RVP_R_ACC_OOL(kmaxds); GEN_RVP_R_ACC_OOL(kmsda); GEN_RVP_R_ACC_OOL(kmsxda); + +/* Signed 16-bit Multiply with 64-bit Add/Subtract Instructions */ +static bool +r_d64_s64_ool(DisasContext *ctx, arg_r *a, + void (* fn)(TCGv_i64, TCGv_ptr, TCGv_i64, TCGv)) +{ + TCGv src2; + TCGv_i64 src1, dst; + + if (!has_ext(ctx, RVP) || !ctx->ext_psfoperand) { + return false; + } + + src1 =3D tcg_temp_new_i64(); + src2 =3D tcg_temp_new(); + dst =3D tcg_temp_new_i64(); + + if (is_32bit(ctx)) { + TCGv t0, t1; + t0 =3D tcg_temp_new(); + t1 =3D tcg_temp_new(); + gen_get_gpr(t0, a->rs1); + gen_get_gpr(t1, a->rs1 + 1); + tcg_gen_concat_tl_i64(src1, t0, t1); + tcg_temp_free(t0); + tcg_temp_free(t1); + } else { + TCGv t0; + t0 =3D tcg_temp_new(); + gen_get_gpr(t0, a->rs1); + tcg_gen_ext_tl_i64(src1, t0); + tcg_temp_free(t0); + } + + gen_get_gpr(src2, a->rs2); + fn(dst, cpu_env, src1, src2); + set_pair_regs(ctx, dst, a->rd); + + tcg_temp_free_i64(src1); + tcg_temp_free_i64(dst); + tcg_temp_free(src2); + return true; +} + +#define GEN_RVP_R_D64_S64_OOL(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_r *a) \ +{ \ + return r_d64_s64_ool(s, a, gen_helper_##NAME); \ +} + +GEN_RVP_R_D64_S64_OOL(smal); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index 88509fd118..1f9a5d620f 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -1944,3 +1944,28 @@ static inline void do_kmsxda(CPURISCVState *env, voi= d *vd, void *va, } =20 RVPR_ACC(kmsxda, 1, 4); + +/* Signed 16-bit Multiply with 64-bit Add/Subtract Instructions */ +static inline void do_smal(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int64_t *d =3D vd, *a =3D va; + int16_t *b =3D vb; + + if (i =3D=3D 0) { + *d =3D *a; + } + + *d +=3D b[H2(i)] * b[H2(i + 1)]; +} + +uint64_t helper_smal(CPURISCVState *env, uint64_t a, target_ulong b) +{ + int i; + int64_t result =3D 0; + + for (i =3D 0; i < sizeof(target_ulong) / 2; i +=3D 2) { + do_smal(env, &result, &a, &b, i); + } + return result; +} --=20 2.17.1