From nobody Wed Nov 5 15:01:44 2025 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 1534858055471265.8371734110673; Tue, 21 Aug 2018 06:27:35 -0700 (PDT) Received: from localhost ([::1]:53548 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fs6gz-0004az-A6 for importer@patchew.org; Tue, 21 Aug 2018 09:27:29 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53392) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fs6Np-00016O-5N for qemu-devel@nongnu.org; Tue, 21 Aug 2018 09:07:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fs6Nl-0008MX-MR for qemu-devel@nongnu.org; Tue, 21 Aug 2018 09:07:40 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:35439 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 1fs6Nl-0008K7-B6 for qemu-devel@nongnu.org; Tue, 21 Aug 2018 09:07:37 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 914081A464C; Tue, 21 Aug 2018 15:07:34 +0200 (CEST) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 6B32F1A4542; Tue, 21 Aug 2018 15:07:34 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Tue, 21 Aug 2018 15:06:52 +0200 Message-Id: <1534856848-12102-11-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1534856848-12102-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1534856848-12102-1-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 v2 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 =3D extract32(ctx->opcode, 10, 6); switch (op) { case NM_P16_MV: + rt =3D NANOMIPS_EXTRACT_RD5(ctx->opcode); + if (rt !=3D 0) { + /* MOVE */ + rs =3D 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) =3D=3D 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 =3D extract32(ctx->opcode, 0, 7); + imm =3D (imm =3D=3D 0x7f ? -1 : imm); + if (rt !=3D 0) { + tcg_gen_movi_tl(cpu_gpr[rt], imm); + } + } break; case NM_ANDI16: break; --=20 2.7.4