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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id r191sm5519406pfr.181.2020.07.10.03.52.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Jul 2020 03:52:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zXYHYDSZaziuRM0VIkNPoyudqwYvSOpENroC7S+5aAA=; b=O8mIfJmztJoY2dYjomvoyOU1ICvHk2aTiEcIPN3i4p1mtWbXxNFda+2YqDQQElV2bn o8XDmSGfhb7PUAAv33UD7FFSFNPbtzzsq+qoj/RwwzRA8Yv9oqJYWNmp3teHcg6fv2Gw sXIPSRkD3az/KqlsuSnnXPlRa0DSeXtVO4mwcmwZBVtVhiq6nueO2xbD+1RHqvIglBFO setBcdRxgi17s884MPhLZKVV0sq6iiQhTZv2wZn4oDUMiwXKaTq3CjkQreqP+BKxFvD6 OqnH7D01rVH5d1G4CFhqHQfHzDIq7yU8jT5ve3icnMZOyXBwRLPSG28saABCNcDBfgMm 3JzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zXYHYDSZaziuRM0VIkNPoyudqwYvSOpENroC7S+5aAA=; b=KMeHdKQfEcH8U01+MkXyjkI1xWObxNbYYHQQnkq5WIqAx5Mrd/598kb9VYfr9yqNJX Z/t2lD3/rNNF36vSM9iaC95CWMdX2jXuOl/iRNhZmd9wHTSexUWFhQSdjOHhebYvMeT8 JRhMZVhQjXfNH1YzVPHZeeXY7BrPy8VAHCG7xQa7N9Ak/98mJ/RHbV7Cv2ssYZwDRflB iRp/3d3PFTZSOyN2Q4rNVjIyU6D/pJSe92imGemGLzhpY6gkC7VEGzoYLkFRmsUuSwqF CJwLWG6DiXe/JyK3k57P3LC0z5sUuAHxb0Gq1l9q/0hVQsyoqRr1XZHUdqEbt9TUSfJA 3ijQ== X-Gm-Message-State: AOAM531W3TAnMwQsmY8yXz+tLH0EUBnwZFx4mtGz8GBMj2d9qFNVu7Ue +TREpetSOnLi9wB5hpCRBkQBRWzkUZz7tQ== X-Google-Smtp-Source: ABdhPJwyOaLmVmr1eVzG2H2mvrsXGEOce6wjEk+p52ims8ts9iMdICkC/H58KffKeEqyLiCMJioX3A== X-Received: by 2002:a17:90b:4d06:: with SMTP id mw6mr5336195pjb.190.1594378371087; Fri, 10 Jul 2020 03:52:51 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC 34/65] target/riscv: rvv-0.9: integer add-with-carry/subtract-with-borrow Date: Fri, 10 Jul 2020 18:48:48 +0800 Message-Id: <20200710104920.13550-35-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200710104920.13550-1-frank.chang@sifive.com> References: <20200710104920.13550-1-frank.chang@sifive.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: pass client-ip=2607:f8b0:4864:20::1041; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1041.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 10 Jul 2020 08:57:17 -0400 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: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Frank Chang Signed-off-by: Frank Chang --- target/riscv/insn32.decode | 20 +++++----- target/riscv/insn_trans/trans_rvv.inc.c | 2 +- target/riscv/vector_helper.c | 50 ++++++++++++++----------- 3 files changed, 40 insertions(+), 32 deletions(-) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 0521ca4ab4..481f909d47 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -324,16 +324,16 @@ vwsubu_wv 110110 . ..... ..... 010 ..... 101011= 1 @r_vm vwsubu_wx 110110 . ..... ..... 110 ..... 1010111 @r_vm vwsub_wv 110111 . ..... ..... 010 ..... 1010111 @r_vm vwsub_wx 110111 . ..... ..... 110 ..... 1010111 @r_vm -vadc_vvm 010000 1 ..... ..... 000 ..... 1010111 @r_vm_1 -vadc_vxm 010000 1 ..... ..... 100 ..... 1010111 @r_vm_1 -vadc_vim 010000 1 ..... ..... 011 ..... 1010111 @r_vm_1 -vmadc_vvm 010001 1 ..... ..... 000 ..... 1010111 @r_vm_1 -vmadc_vxm 010001 1 ..... ..... 100 ..... 1010111 @r_vm_1 -vmadc_vim 010001 1 ..... ..... 011 ..... 1010111 @r_vm_1 -vsbc_vvm 010010 1 ..... ..... 000 ..... 1010111 @r_vm_1 -vsbc_vxm 010010 1 ..... ..... 100 ..... 1010111 @r_vm_1 -vmsbc_vvm 010011 1 ..... ..... 000 ..... 1010111 @r_vm_1 -vmsbc_vxm 010011 1 ..... ..... 100 ..... 1010111 @r_vm_1 +vadc_vvm 010000 0 ..... ..... 000 ..... 1010111 @r_vm_1 +vadc_vxm 010000 0 ..... ..... 100 ..... 1010111 @r_vm_1 +vadc_vim 010000 0 ..... ..... 011 ..... 1010111 @r_vm_1 +vmadc_vvm 010001 . ..... ..... 000 ..... 1010111 @r_vm +vmadc_vxm 010001 . ..... ..... 100 ..... 1010111 @r_vm +vmadc_vim 010001 . ..... ..... 011 ..... 1010111 @r_vm +vsbc_vvm 010010 0 ..... ..... 000 ..... 1010111 @r_vm_1 +vsbc_vxm 010010 0 ..... ..... 100 ..... 1010111 @r_vm_1 +vmsbc_vvm 010011 . ..... ..... 000 ..... 1010111 @r_vm +vmsbc_vxm 010011 . ..... ..... 100 ..... 1010111 @r_vm vand_vv 001001 . ..... ..... 000 ..... 1010111 @r_vm vand_vx 001001 . ..... ..... 100 ..... 1010111 @r_vm vand_vi 001001 . ..... ..... 011 ..... 1010111 @r_vm diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_tr= ans/trans_rvv.inc.c index d90820ff6a..89a909b312 100644 --- a/target/riscv/insn_trans/trans_rvv.inc.c +++ b/target/riscv/insn_trans/trans_rvv.inc.c @@ -1588,7 +1588,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a= ) \ =20 /* * For vadc and vsbc, an illegal instruction exception is raised if the - * destination vector register is v0 and LMUL > 1. (Section 12.3) + * destination vector register is v0 and LMUL > 1. (Section 12.4) */ static bool opivv_vadc_check(DisasContext *s, arg_rmrr *a) { diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 17cc1a96e9..af4d3c6441 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -1322,24 +1322,28 @@ GEN_VEXT_VADC_VXM(vsbc_vxm_d, uint64_t, H8, DO_VSBC= , clearq) (__typeof(N))(N + M) < N) #define DO_MSBC(N, M, C) (C ? N <=3D M : N < M) =20 -#define GEN_VEXT_VMADC_VVM(NAME, ETYPE, H, DO_OP) \ -void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ - CPURISCVState *env, uint32_t desc) \ -{ \ - uint32_t vl =3D env->vl; \ - uint32_t vlmax =3D vext_maxsz(desc) / sizeof(ETYPE); \ - uint32_t i; \ - \ - for (i =3D 0; i < vl; i++) { \ - ETYPE s1 =3D *((ETYPE *)vs1 + H(i)); \ - ETYPE s2 =3D *((ETYPE *)vs2 + H(i)); \ - uint8_t carry =3D vext_elem_mask(v0, i); \ - \ - vext_set_elem_mask(vd, i, DO_OP(s2, s1, carry)); \ - } \ - for (; i < vlmax; i++) { \ - vext_set_elem_mask(vd, i, 0); \ - } \ +#define GEN_VEXT_VMADC_VVM(NAME, ETYPE, H, DO_OP) \ +void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t vl =3D env->vl; \ + uint32_t vlmax =3D vext_max_elems(desc, sizeof(ETYPE), false);\ + uint32_t vm =3D vext_vm(desc); \ + uint32_t vta =3D vext_vta(desc); \ + uint32_t i; \ + \ + for (i =3D 0; i < vl; i++) { \ + ETYPE s1 =3D *((ETYPE *)vs1 + H(i)); \ + ETYPE s2 =3D *((ETYPE *)vs2 + H(i)); \ + uint8_t carry =3D !vm ? vext_elem_mask(v0, i) : 0; \ + \ + vext_set_elem_mask(vd, i, DO_OP(s2, s1, carry)); \ + } \ + if (vta =3D=3D 1) { \ + for (; i < vlmax; i++) { \ + vext_set_elem_mask(vd, i, 0); \ + } \ + } \ } =20 GEN_VEXT_VMADC_VVM(vmadc_vvm_b, uint8_t, H1, DO_MADC) @@ -1358,17 +1362,21 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong = s1, \ { \ uint32_t vl =3D env->vl; \ uint32_t vlmax =3D vext_max_elems(desc, sizeof(ETYPE), false);\ + uint32_t vm =3D vext_vm(desc); \ + uint32_t vta =3D vext_vta(desc); \ uint32_t i; \ \ for (i =3D 0; i < vl; i++) { \ ETYPE s2 =3D *((ETYPE *)vs2 + H(i)); \ - uint8_t carry =3D vext_elem_mask(v0, i); \ + uint8_t carry =3D !vm ? vext_elem_mask(v0, i) : 0; \ \ vext_set_elem_mask(vd, i, \ DO_OP(s2, (ETYPE)(target_long)s1, carry)); \ } \ - for (; i < vlmax; i++) { \ - vext_set_elem_mask(vd, i, 0); \ + if (vta =3D=3D 1) { \ + for (; i < vlmax; i++) { \ + vext_set_elem_mask(vd, i, 0); \ + } \ } \ } =20 --=20 2.17.1