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GET /api/patches/954011/?format=api
{ "id": 954011, "url": "http://patchwork.ozlabs.org/api/patches/954011/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1533574847-19294-20-git-send-email-aleksandar.markovic@rt-rk.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1533574847-19294-20-git-send-email-aleksandar.markovic@rt-rk.com>", "list_archive_url": null, "date": "2018-08-06T16:59:46", "name": "[v7,19/80] target/mips: Add emulation of nanoMIPS 16-bit arithmetic instructions", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "061192980cc7c38cd575c469ea9b1767b746a467", "submitter": { "id": 68635, "url": "http://patchwork.ozlabs.org/api/people/68635/?format=api", "name": "Aleksandar Markovic", "email": "aleksandar.markovic@rt-rk.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1533574847-19294-20-git-send-email-aleksandar.markovic@rt-rk.com/mbox/", "series": [ { "id": 59520, "url": "http://patchwork.ozlabs.org/api/series/59520/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=59520", "date": "2018-08-06T16:59:27", "name": "Add nanoMIPS support to QEMU", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/59520/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/954011/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/954011/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=none (p=none dis=none) header.from=rt-rk.com" ], "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 41kklB3Sqkz9ryt\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 7 Aug 2018 03:13:58 +1000 (AEST)", "from localhost ([::1]:35224 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1fmj4u-0003zX-3c\n\tfor incoming@patchwork.ozlabs.org; Mon, 06 Aug 2018 13:13:56 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:55276)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <aleksandar.markovic@rt-rk.com>) id 1fmizy-0007yv-VZ\n\tfor qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:08:52 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <aleksandar.markovic@rt-rk.com>) id 1fmizw-0000Vg-6n\n\tfor qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:08:50 -0400", "from mx2.rt-rk.com ([89.216.37.149]:46882 helo=mail.rt-rk.com)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <aleksandar.markovic@rt-rk.com>)\n\tid 1fmizv-0000Ta-RU\n\tfor qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:08:48 -0400", "from localhost (localhost [127.0.0.1])\n\tby mail.rt-rk.com (Postfix) with ESMTP id A8BE41A209F;\n\tMon, 6 Aug 2018 19:08:46 +0200 (CEST)", "from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local\n\t[10.10.13.43])\n\tby mail.rt-rk.com (Postfix) with ESMTPSA id 8415C1A2039;\n\tMon, 6 Aug 2018 19:08:46 +0200 (CEST)" ], "X-Virus-Scanned": "amavisd-new at rt-rk.com", "From": "Aleksandar Markovic <aleksandar.markovic@rt-rk.com>", "To": "qemu-devel@nongnu.org", "Date": "Mon, 6 Aug 2018 18:59:46 +0200", "Message-Id": "<1533574847-19294-20-git-send-email-aleksandar.markovic@rt-rk.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1533574847-19294-1-git-send-email-aleksandar.markovic@rt-rk.com>", "References": "<1533574847-19294-1-git-send-email-aleksandar.markovic@rt-rk.com>", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 3.x [fuzzy]", "X-Received-From": "89.216.37.149", "Subject": "[Qemu-devel] [PATCH v7 19/80] target/mips: Add emulation of\n\tnanoMIPS 16-bit arithmetic instructions", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "peter.maydell@linaro.org, thuth@redhat.com, pburton@wavecomp.com,\n\tsmarkovic@wavecomp.com, riku.voipio@iki.fi,\n\trichard.henderson@linaro.org, laurent@vivier.eu,\n\tarmbru@redhat.com, arikalo@wavecomp.com,\n\tphilippe.mathieu.daude@gmail.com, amarkovic@wavecomp.com,\n\tpjovanovic@wavecomp.com, aurelien@aurel32.net", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "From: Yongbok Kim <yongbok.kim@mips.com>\n\nAdd emulation of nanoMIPS 16-bit arithmetic instructions.\n\nReviewed-by: Richard Henderson <richard.henderson@linaro.org>\nSigned-off-by: Yongbok Kim <yongbok.kim@mips.com>\nSigned-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>\nSigned-off-by: Stefan Markovic <smarkovic@wavecomp.com>\n---\n target/mips/translate.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 125 insertions(+)", "diff": "diff --git a/target/mips/translate.c b/target/mips/translate.c\nindex 756eb40..53c92f6 100644\n--- a/target/mips/translate.c\n+++ b/target/mips/translate.c\n@@ -16595,6 +16595,131 @@ static inline int decode_gpr_gpr4_zero(int r)\n \n static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx)\n {\n+ uint32_t op;\n+ int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RD(ctx->opcode));\n+ int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS(ctx->opcode));\n+ int rd = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS1(ctx->opcode));\n+ int imm;\n+\n+ /* make sure instructions are on a halfword boundary */\n+ if (ctx->base.pc_next & 0x1) {\n+ TCGv tmp = tcg_const_tl(ctx->base.pc_next);\n+ tcg_gen_st_tl(tmp, cpu_env, offsetof(CPUMIPSState, CP0_BadVAddr));\n+ tcg_temp_free(tmp);\n+ generate_exception_end(ctx, EXCP_AdEL);\n+ return 2;\n+ }\n+\n+ op = extract32(ctx->opcode, 10, 6);\n+ switch (op) {\n+ case NM_P16_MV:\n+ break;\n+ case NM_P16_SHIFT:\n+ break;\n+ case NM_P16C:\n+ break;\n+ case NM_P16_A1:\n+ switch (extract32(ctx->opcode, 6, 1)) {\n+ case NM_ADDIUR1SP:\n+ imm = extract32(ctx->opcode, 0, 6) << 2;\n+ gen_arith_imm(ctx, OPC_ADDIU, rt, 29, imm);\n+ break;\n+ default:\n+ generate_exception_end(ctx, EXCP_RI);\n+ break;\n+ }\n+ break;\n+ case NM_P16_A2:\n+ switch (extract32(ctx->opcode, 3, 1)) {\n+ case NM_ADDIUR2:\n+ imm = extract32(ctx->opcode, 0, 3) << 2;\n+ gen_arith_imm(ctx, OPC_ADDIU, rt, rs, imm);\n+ break;\n+ case NM_P_ADDIURS5:\n+ rt = extract32(ctx->opcode, 5, 5);\n+ if (rt != 0) {\n+ /* imm = sign_extend(s[3] . s[2:0] , from_nbits = 4) */\n+ imm = (sextract32(ctx->opcode, 4, 1) << 3) |\n+ (extract32(ctx->opcode, 0, 3));\n+ gen_arith_imm(ctx, OPC_ADDIU, rt, rt, imm);\n+ }\n+ break;\n+ }\n+ break;\n+ case NM_P16_ADDU:\n+ switch (ctx->opcode & 0x1) {\n+ case NM_ADDU16:\n+ gen_arith(ctx, OPC_ADDU, rd, rs, rt);\n+ break;\n+ case NM_SUBU16:\n+ gen_arith(ctx, OPC_SUBU, rd, rs, rt);\n+ break;\n+ }\n+ break;\n+ case NM_P16_4X4:\n+ rt = (extract32(ctx->opcode, 9, 1) << 3) |\n+ extract32(ctx->opcode, 5, 3);\n+ rs = (extract32(ctx->opcode, 4, 1) << 3) |\n+ extract32(ctx->opcode, 0, 3);\n+ rt = decode_gpr_gpr4(rt);\n+ rs = decode_gpr_gpr4(rs);\n+ switch ((extract32(ctx->opcode, 7, 2) & 0x2) |\n+ (extract32(ctx->opcode, 3, 1))) {\n+ case NM_ADDU4X4:\n+ gen_arith(ctx, OPC_ADDU, rt, rs, rt);\n+ break;\n+ case NM_MUL4X4:\n+ gen_r6_muldiv(ctx, R6_OPC_MUL, rt, rs, rt);\n+ break;\n+ default:\n+ generate_exception_end(ctx, EXCP_RI);\n+ break;\n+ }\n+ break;\n+ case NM_LI16:\n+ break;\n+ case NM_ANDI16:\n+ break;\n+ case NM_P16_LB:\n+ break;\n+ case NM_P16_LH:\n+ break;\n+ case NM_LW16:\n+ break;\n+ case NM_LWSP16:\n+ break;\n+ case NM_LW4X4:\n+ break;\n+ case NM_SW4X4:\n+ break;\n+ case NM_LWGP16:\n+ break;\n+ case NM_SWSP16:\n+ break;\n+ case NM_SW16:\n+ break;\n+ case NM_SWGP16:\n+ break;\n+ case NM_BC16:\n+ break;\n+ case NM_BALC16:\n+ break;\n+ case NM_BEQZC16:\n+ break;\n+ case NM_BNEZC16:\n+ break;\n+ case NM_P16_BR:\n+ break;\n+ case NM_P16_SR:\n+ break;\n+ case NM_MOVEP:\n+ break;\n+ case NM_MOVEPREV:\n+ break;\n+ default:\n+ break;\n+ }\n+\n return 2;\n }\n \n", "prefixes": [ "v7", "19/80" ] }