From nobody Mon Feb 9 13:31:03 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 154599246678048.97699023517316; Fri, 28 Dec 2018 02:21:06 -0800 (PST) Received: from localhost ([127.0.0.1]:58155 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gcpGL-00055c-Bd for importer@patchew.org; Fri, 28 Dec 2018 05:21:05 -0500 Received: from eggs.gnu.org ([208.118.235.92]:57948) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gcpBS-00008L-Pg for qemu-devel@nongnu.org; Fri, 28 Dec 2018 05:16:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gcoxK-0004Iz-Vf for qemu-devel@nongnu.org; Fri, 28 Dec 2018 05:01:30 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:49711 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gcoPO-0003Jy-IL for qemu-devel@nongnu.org; Fri, 28 Dec 2018 04:26:22 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id A783E1A2130; Fri, 28 Dec 2018 10:25:56 +0100 (CET) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 6F6A51A2166; Fri, 28 Dec 2018 10:25:56 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Fri, 28 Dec 2018 10:25:43 +0100 Message-Id: <1545989148-13582-37-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1545989148-13582-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1545989148-13582-1-git-send-email-aleksandar.markovic@rt-rk.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PULL 36/41] disas: nanoMIPS: Reorder declarations and definitions of gpr decoders X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, amarkovic@wavecomp.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Aleksandar Markovic Reorder declarations and definitions of gpr decoders by number of input bits of corresponding encoding type. Reviewed-by: Aleksandar Rikalo Signed-off-by: Aleksandar Markovic --- disas/nanomips.cpp | 200 ++++++++++++++++++++++++++-----------------------= ---- disas/nanomips.h | 7 +- 2 files changed, 104 insertions(+), 103 deletions(-) diff --git a/disas/nanomips.cpp b/disas/nanomips.cpp index 23556b4..d6632bb 100644 --- a/disas/nanomips.cpp +++ b/disas/nanomips.cpp @@ -292,6 +292,77 @@ uint64 NMD::renumber_registers(uint64 index, uint64 *r= egister_list, =20 =20 /* + * NMD::decode_gpr_gpr4() - decoder for 'gpr4' gpr encoding type + * + * Map a 4-bit code to the 5-bit register space according to this patter= n: + * + * 1 0 + * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * | | | | | | | | | | | | | | | | + * | | | | | | | | | | | | | | | | + * | | | | | | | | | | | =E2=94=94---------------=E2=94= =90 + * | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | + * | | | | | | | | | =E2=94=94---------------=E2=94=90 = | | + * | | | | | | | | =E2=94=94---------------=E2=94=90 | = | | + * | | | | | | | | | | | | | | | | + * | | | | | | | | | | | | | | | | + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * 3 2 1 0 + * + * Used in handling following instructions: + * + * - ADDU[4X4] + * - LW[4X4] + * - MOVEP[REV] + * - MUL[4X4] + * - SW[4X4] + */ +uint64 NMD::decode_gpr_gpr4(uint64 d) +{ + static uint64 register_list[] =3D { 8, 9, 10, 11, 4, 5, 6, 7, + 16, 17, 18, 19, 20, 21, 22, 23 }; + return renumber_registers(d, register_list, + sizeof(register_list) / sizeof(register_list[0])); +} + + +/* + * NMD::decode_gpr_gpr4_zero() - decoder for 'gpr4.zero' gpr encoding type + * + * Map a 4-bit code to the 5-bit register space according to this patter= n: + * + * 1 0 + * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * | | | | | | | | | | | | | | | | + * | | | | | | | | | | | | =E2=94=94-------------------= --=E2=94=90 + * | | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | + * | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | | + * | | | | | | | | | =E2=94=94---------------=E2=94=90 = | | | + * | | | | | | | | =E2=94=94---------------=E2=94=90 | = | | | + * | | | | | | | | | | | | | | | | + * | | | | | | | | | | | | | | | | + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * 3 2 1 0 + * + * This pattern is the same one used for 'gpr4' gpr encoding type, excep= t for + * the input value 3, that is mapped to the output value 0 instead of 11. + * + * Used in handling following instructions: + * + * - MOVE.BALC + * - MOVEP + * - SW[4X4] + */ +uint64 NMD::decode_gpr_gpr4_zero(uint64 d) +{ + static uint64 register_list[] =3D { 8, 9, 10, 0, 4, 5, 6, 7, + 16, 17, 18, 19, 20, 21, 22, 23 }; + return renumber_registers(d, register_list, + sizeof(register_list) / sizeof(register_list[0])); +} + + +/* * NMD::decode_gpr_gpr3() - decoder for 'gpr3' gpr encoding type * * Map a 3-bit code to the 5-bit register space according to this patter= n: @@ -390,106 +461,6 @@ uint64 NMD::decode_gpr_gpr3_src_store(uint64 d) =20 =20 /* - * NMD::decode_gpr_gpr1() - decoder for 'gpr1' gpr encoding type - * - * Map a 1-bit code to the 5-bit register space according to this patter= n: - * - * 1 0 - * | | - * | | - * | =E2=94=94---------------------=E2=94= =90 - * =E2=94=94---------------------=E2=94= =90 | - * | | - * | | - * | | - * | | - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * 3 2 1 0 - * - * Used in handling following instruction: - * - * - MOVE.BALC - */ -uint64 NMD::decode_gpr_gpr1(uint64 d) -{ - static uint64 register_list[] =3D { 4, 5 }; - return renumber_registers(d, register_list, - sizeof(register_list) / sizeof(register_list[0])); -} - - -/* - * NMD::decode_gpr_gpr4_zero() - decoder for 'gpr4.zero' gpr encoding type - * - * Map a 4-bit code to the 5-bit register space according to this patter= n: - * - * 1 0 - * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * | | | | | | | | | | | | | | | | - * | | | | | | | | | | | | =E2=94=94-------------------= --=E2=94=90 - * | | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | - * | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | | - * | | | | | | | | | =E2=94=94---------------=E2=94=90 = | | | - * | | | | | | | | =E2=94=94---------------=E2=94=90 | = | | | - * | | | | | | | | | | | | | | | | - * | | | | | | | | | | | | | | | | - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * 3 2 1 0 - * - * This pattern is the same one used for 'gpr4' gpr encoding type, excep= t for - * the input value 3, that is mapped to the output value 0 instead of 11. - * - * Used in handling following instructions: - * - * - MOVE.BALC - * - MOVEP - * - SW[4X4] - */ -uint64 NMD::decode_gpr_gpr4_zero(uint64 d) -{ - static uint64 register_list[] =3D { 8, 9, 10, 0, 4, 5, 6, 7, - 16, 17, 18, 19, 20, 21, 22, 23 }; - return renumber_registers(d, register_list, - sizeof(register_list) / sizeof(register_list[0])); -} - - -/* - * NMD::decode_gpr_gpr4() - decoder for 'gpr4' gpr encoding type - * - * Map a 4-bit code to the 5-bit register space according to this patter= n: - * - * 1 0 - * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * | | | | | | | | | | | | | | | | - * | | | | | | | | | | | | | | | | - * | | | | | | | | | | | =E2=94=94---------------=E2=94= =90 - * | | | | | | | | | | =E2=94=94---------------=E2=94= =90 | - * | | | | | | | | | =E2=94=94---------------=E2=94=90 = | | - * | | | | | | | | =E2=94=94---------------=E2=94=90 | = | | - * | | | | | | | | | | | | | | | | - * | | | | | | | | | | | | | | | | - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * 3 2 1 0 - * - * Used in handling following instructions: - * - * - ADDU[4X4] - * - LW[4X4] - * - MOVEP[REV] - * - MUL[4X4] - * - SW[4X4] - */ -uint64 NMD::decode_gpr_gpr4(uint64 d) -{ - static uint64 register_list[] =3D { 8, 9, 10, 11, 4, 5, 6, 7, - 16, 17, 18, 19, 20, 21, 22, 23 }; - return renumber_registers(d, register_list, - sizeof(register_list) / sizeof(register_list[0])); -} - - -/* * NMD::decode_gpr_gpr2_reg1() - decoder for 'gpr2.reg1' gpr encoding type * * Map a 2-bit code to the 5-bit register space according to this patter= n: @@ -549,6 +520,35 @@ uint64 NMD::decode_gpr_gpr2_reg2(uint64 d) } =20 =20 +/* + * NMD::decode_gpr_gpr1() - decoder for 'gpr1' gpr encoding type + * + * Map a 1-bit code to the 5-bit register space according to this patter= n: + * + * 1 0 + * | | + * | | + * | =E2=94=94---------------------=E2=94= =90 + * =E2=94=94---------------------=E2=94= =90 | + * | | + * | | + * | | + * | | + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * 3 2 1 0 + * + * Used in handling following instruction: + * + * - MOVE.BALC + */ +uint64 NMD::decode_gpr_gpr1(uint64 d) +{ + static uint64 register_list[] =3D { 4, 5 }; + return renumber_registers(d, register_list, + sizeof(register_list) / sizeof(register_list[0])); +} + + uint64 NMD::copy(uint64 d) { return d; diff --git a/disas/nanomips.h b/disas/nanomips.h index d6a6e3f..6482eda 100644 --- a/disas/nanomips.h +++ b/disas/nanomips.h @@ -105,13 +105,14 @@ private: =20 uint64 renumber_registers(uint64 index, uint64 *register_list, size_t register_list_size); + + uint64 decode_gpr_gpr4(uint64 d); + uint64 decode_gpr_gpr4_zero(uint64 d); uint64 decode_gpr_gpr3(uint64 d); uint64 decode_gpr_gpr3_src_store(uint64 d); - uint64 decode_gpr_gpr1(uint64 d); - uint64 decode_gpr_gpr4_zero(uint64 d); - uint64 decode_gpr_gpr4(uint64 d); uint64 decode_gpr_gpr2_reg1(uint64 d); uint64 decode_gpr_gpr2_reg2(uint64 d); + uint64 decode_gpr_gpr1(uint64 d); =20 uint64 copy(uint64 d); int64 copy(int64 d); --=20 2.7.4