From nobody Tue Feb 10 17:13:16 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 ARC-Seal: i=1; a=rsa-sha256; t=1623313715; cv=none; d=zohomail.com; s=zohoarc; b=kQVZs3kcW76uYJFpzt19TZ0IslFiPGG7CLXRY4uFOPN+FmlGiwIB9Cuv6HwzI9I/Fhz+IbMq4tWkdxZJvkjxdi8nj5vu3YRv7tBW/ENXLs8xg+Jo7ch2bKvTX+6gXcfx8P6GNtjKxPtZfHX1F66qNRH03MSx4RiILDsGg5V7IUs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1623313715; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=K3ozxyNT8Onup9umhLK426e4sHpe0xAJEM2zMcRfQhk=; b=n1OeoXT2gRDwDVBeZ64Ssy8/LklBUDifcD99rQgwyJb1c7B9w8jxzuxw/q4pMfQUTgKyGqq9JZ3Wo+d62Ckf4ODfMx1fs8Abk1gIfbTKhaZWGLyGj/XHQOLFfo/23/UMcvL4iVFQdlEqTEfT6vHLhwJvEAzieqNuGud8H/bLJZI= ARC-Authentication-Results: i=1; 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 1623313715401971.1230830244; Thu, 10 Jun 2021 01:28:35 -0700 (PDT) Received: from localhost ([::1]:60282 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lrG3G-000815-19 for importer@patchew.org; Thu, 10 Jun 2021 04:28:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42994) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrFmo-0005tN-5g; Thu, 10 Jun 2021 04:11:34 -0400 Received: from out28-53.mail.aliyun.com ([115.124.28.53]:35896) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrFmm-0004OB-1U; Thu, 10 Jun 2021 04:11:33 -0400 Received: from localhost.localdomain(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.KQN01fi_1623312686) by smtp.aliyun-inc.com(10.147.41.121); Thu, 10 Jun 2021 16:11:27 +0800 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07462487|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.70221-0.0139448-0.283845; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047199; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=7; RT=7; SR=0; TI=SMTPD_---.KQN01fi_1623312686; From: LIU Zhiwei To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v2 24/37] target/riscv: Non-SIMD Q15 saturation ALU Instructions Date: Thu, 10 Jun 2021 15:58:55 +0800 Message-Id: <20210610075908.3305506-25-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210610075908.3305506-1-zhiwei_liu@c-sky.com> References: <20210610075908.3305506-1-zhiwei_liu@c-sky.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=115.124.28.53; envelope-from=zhiwei_liu@c-sky.com; helo=out28-53.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, richard.henderson@linaro.org, bin.meng@windriver.com, Alistair.Francis@wdc.com, LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Q15 saturation is to limit the result to the range [INT16_MIN, INT16_MAX]. Signed-off-by: LIU Zhiwei --- target/riscv/helper.h | 8 +++ target/riscv/insn32.decode | 8 +++ target/riscv/insn_trans/trans_rvp.c.inc | 12 ++++ target/riscv/packed_helper.c | 78 +++++++++++++++++++++++++ 4 files changed, 106 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 87a0779842..6ce22a186e 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1361,3 +1361,11 @@ DEF_HELPER_4(smalxds, i64, env, tl, tl, i64) DEF_HELPER_4(smaldrs, i64, env, tl, tl, i64) DEF_HELPER_4(smslda, i64, env, tl, tl, i64) DEF_HELPER_4(smslxda, i64, env, tl, tl, i64) + +DEF_HELPER_3(kaddh, tl, env, tl, tl) +DEF_HELPER_3(ksubh, tl, env, tl, tl) +DEF_HELPER_3(khmbb, tl, env, tl, tl) +DEF_HELPER_3(khmbt, tl, env, tl, tl) +DEF_HELPER_3(khmtt, tl, env, tl, tl) +DEF_HELPER_3(ukaddh, tl, env, tl, tl) +DEF_HELPER_3(uksubh, tl, env, tl, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index d1668b34cb..f465851f03 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -964,3 +964,11 @@ smaldrs 1001101 ..... ..... 001 ..... 1110111 @r smalxds 1010101 ..... ..... 001 ..... 1110111 @r smslda 1010110 ..... ..... 001 ..... 1110111 @r smslxda 1011110 ..... ..... 001 ..... 1110111 @r + +kaddh 0000010 ..... ..... 001 ..... 1110111 @r +ksubh 0000011 ..... ..... 001 ..... 1110111 @r +khmbb 0000110 ..... ..... 001 ..... 1110111 @r +khmbt 0001110 ..... ..... 001 ..... 1110111 @r +khmtt 0010110 ..... ..... 001 ..... 1110111 @r +ukaddh 0001010 ..... ..... 001 ..... 1110111 @r +uksubh 0001011 ..... ..... 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 7c91bdc888..48eb190bc6 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -669,3 +669,15 @@ GEN_RVP_R_D64_ACC_OOL(smaldrs); GEN_RVP_R_D64_ACC_OOL(smalxds); GEN_RVP_R_D64_ACC_OOL(smslda); GEN_RVP_R_D64_ACC_OOL(smslxda); + +/* + *** Non-SIMD Instructions + */ +/* Non-SIMD Q15 saturation ALU Instructions */ +GEN_RVP_R_OOL(kaddh); +GEN_RVP_R_OOL(ksubh); +GEN_RVP_R_OOL(khmbb); +GEN_RVP_R_OOL(khmbt); +GEN_RVP_R_OOL(khmtt); +GEN_RVP_R_OOL(ukaddh); +GEN_RVP_R_OOL(uksubh); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index 3330a2ecec..171f88face 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -2526,3 +2526,81 @@ static inline void do_smslxda(CPURISCVState *env, vo= id *vd, void *va, } =20 RVPR64_ACC(smslxda, 2, 2); + +/* Q15 saturation instructions */ +static inline void do_kaddh(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + int32_t *a =3D va, *b =3D vb; + + *d =3D sat64(env, (int64_t)a[H4(i)] + b[H4(i)], 15); +} + +RVPR(kaddh, 2, 4); + +static inline void do_ksubh(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + int32_t *a =3D va, *b =3D vb; + + *d =3D sat64(env, (int64_t)a[H4(i)] - b[H4(i)], 15); +} + +RVPR(ksubh, 2, 4); + +static inline void do_khmbb(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + int16_t *a =3D va, *b =3D vb; + + *d =3D sat64(env, (int64_t)a[H2(i)] * b[H2(i)] >> 15, 15); +} + +RVPR(khmbb, 4, 2); + +static inline void do_khmbt(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + int16_t *a =3D va, *b =3D vb; + + *d =3D sat64(env, (int64_t)a[H2(i)] * b[H2(i + 1)] >> 15, 15); +} + +RVPR(khmbt, 4, 2); + +static inline void do_khmtt(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + int16_t *a =3D va, *b =3D vb; + + *d =3D sat64(env, (int64_t)a[H2(i + 1)] * b[H2(i + 1)] >> 15, 15); +} + +RVPR(khmtt, 4, 2); + +static inline void do_ukaddh(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + uint32_t *a =3D va, *b =3D vb; + + *d =3D (int16_t)satu64(env, saddu32(env, 0, a[H4(i)], b[H4(i)]), 16); +} + +RVPR(ukaddh, 2, 4); + +static inline void do_uksubh(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + target_long *d =3D vd; + uint32_t *a =3D va, *b =3D vb; + + *d =3D (int16_t)satu64(env, ssubu32(env, 0, a[H4(i)], b[H4(i)]), 16); +} + +RVPR(uksubh, 2, 4); --=20 2.25.1