From patchwork Thu Aug 23 13:34:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 10574041 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3C762921 for ; Thu, 23 Aug 2018 13:55:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 23E432C16E for ; Thu, 23 Aug 2018 13:55:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 18ACB2C170; Thu, 23 Aug 2018 13:55:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 990E52C16E for ; Thu, 23 Aug 2018 13:55:34 +0000 (UTC) Received: from localhost ([::1]:36617 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fsq5G-0007jW-0N for patchwork-qemu-devel@patchwork.kernel.org; Thu, 23 Aug 2018 09:55:34 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45681) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fspm9-00050P-Qh for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:36:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fspm7-00006Z-1R for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:35:49 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:41887 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 1fspm6-0008VT-J3 for qemu-devel@nongnu.org; Thu, 23 Aug 2018 09:35:46 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id F25A91A2470; Thu, 23 Aug 2018 15:34:42 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id B9C321A413A; Thu, 23 Aug 2018 15:34:42 +0200 (CEST) From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Thu, 23 Aug 2018 15:34:00 +0200 Message-Id: <1535031276-22911-11-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1535031276-22911-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1535031276-22911-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PULL v4 10/46] target/mips: Add emulation of nanoMIPS 16-bit misc instructions 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 Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Yongbok Kim Add emulation of misc nanoMIPS 16-bit instructions. Reviewed-by: Richard Henderson Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- target/mips/translate.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/target/mips/translate.c b/target/mips/translate.c index e3fac1a..c774dc9 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16763,6 +16763,40 @@ static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx) op = extract32(ctx->opcode, 10, 6); switch (op) { case NM_P16_MV: + rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); + if (rt != 0) { + /* MOVE */ + rs = NANOMIPS_EXTRACT_RS5(ctx->opcode); + gen_arith(ctx, OPC_ADDU, rt, rs, 0); + } else { + /* P16.RI */ + switch (extract32(ctx->opcode, 3, 2)) { + case NM_P16_SYSCALL: + if (extract32(ctx->opcode, 2, 1) == 0) { + generate_exception_end(ctx, EXCP_SYSCALL); + } else { + generate_exception_end(ctx, EXCP_RI); + } + break; + case NM_BREAK16: + generate_exception_end(ctx, EXCP_BREAK); + break; + case NM_SDBBP16: + if (is_uhi(extract32(ctx->opcode, 0, 3))) { + gen_helper_do_semihosting(cpu_env); + } else { + if (ctx->hflags & MIPS_HFLAG_SBRI) { + generate_exception_end(ctx, EXCP_RI); + } else { + generate_exception_end(ctx, EXCP_DBp); + } + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + } break; case NM_P16_SHIFT: { @@ -16842,6 +16876,13 @@ static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx) } break; case NM_LI16: + { + int imm = extract32(ctx->opcode, 0, 7); + imm = (imm == 0x7f ? -1 : imm); + if (rt != 0) { + tcg_gen_movi_tl(cpu_gpr[rt], imm); + } + } break; case NM_ANDI16: break;