From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A0B3ACF34BE for ; Thu, 3 Oct 2024 18:37:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1swQer-0007Vu-3k; Thu, 03 Oct 2024 14:34:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1swQeU-0007GY-Fu for qemu-riscv@nongnu.org; Thu, 03 Oct 2024 14:34:19 -0400 Received: from mail-pj1-x1030.google.com ([2607:f8b0:4864:20::1030]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1swQeR-00055k-1U for qemu-riscv@nongnu.org; Thu, 03 Oct 2024 14:34:13 -0400 Received: by mail-pj1-x1030.google.com with SMTP id 98e67ed59e1d1-2e0894f1b14so1040920a91.1 for ; Thu, 03 Oct 2024 11:34:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1727980449; x=1728585249; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=M7nGUkC8AoqQkvdlZ/4VsRGMOV3aEFYCGC3UA04clbY=; b=rkOuzgaz2EXrPeTpXe7hj0mcTAtq/7DfHyltLZz/WgchsmWlgP2jqqJjJs9eDuRXXI 86V2UQL6R2hkhP7hvjj3q/AcW8NLeERVce65M4D8uAewn8zcNLn9q/cB0xmv3oRg3foe vSmmxn42xhCD1EPxlNmCjPiMFn+hwaFFbM+Y7La3Kly7Z0fBIPucCkfwxPSfDGlNpSPr dXANu8eVg97SfnRfBoI3oBut/e7/sHqhjwvXIjqKLqvZOaff7y/tjhJbN3oNaK8IhOrS iMvx+HuditBjB46X9IlzjehuEOfl4xDT7A+DNhyN1ccOed0oLGUi7fB/20QS1wDfKk5g cUHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727980449; x=1728585249; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=M7nGUkC8AoqQkvdlZ/4VsRGMOV3aEFYCGC3UA04clbY=; b=ozwFAfi6tdCxC0llmdgLC4d9sv2N8YQNcb0a6WP0DXp0S4vhESxTByNyshDyXg2Rm2 bH95HfgmRRzyGHliKtP8JtGFD+WyYkjgFZE9y+Hjfi5ZVupX5ks8nGNZ/Z3pkTNRCq+z 9bJpr/+pBABCjSz3KymPZeTe/+pN3UoV5QpSUwaklrvHRAu4SjXD2rnjqdUl5ER0gOVE guRmaLvB2vOUxjkehTKsjwYYWKRSHG5mZL3VY2JSVaOzbGUq/+qG8O7PBPZRYN6gqdP2 hfp/Rh37Z1CINNJIdVd29v0vMwM+f1lZIfKOfVNjtcZGLq3wy2/lcplUUi4ddyFsORWo L4Cw== X-Gm-Message-State: AOJu0YwMwtQW5xpMBJtr/GMuSGej4MlCfXyhbGBYi4G7Pa2+wyjKCcsk zLm/viH2JFAAaGmGeoHSjxbfmEkfKwlM/RBFfwcet+qoD7cmDotQPpHytEKROOhweWwRXTtu1ma U X-Google-Smtp-Source: AGHT+IFZN/dmZSWCYK3bw8T4rrMYRM0Duyt/jCwQ4wzOokdg20SMhUTXYOqT0gq4Wmj7V+cVmK/KEg== X-Received: by 2002:a05:6a21:1192:b0:1cf:489a:52c1 with SMTP id adf61e73a8af0-1d6dfa3ba62mr286587637.18.1727980449581; Thu, 03 Oct 2024 11:34:09 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20beefad16asm11796245ad.193.2024.10.03.11.34.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Oct 2024 11:34:09 -0700 (PDT) From: Deepak Gupta To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, Alistair.Francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jim.shu@sifive.com, kito.cheng@sifive.com, Deepak Gupta , Andy Chiu , Richard Henderson , Alistair Francis Subject: [PATCH v15 18/21] target/riscv: compressed encodings for sspush and sspopchk Date: Thu, 3 Oct 2024 11:33:39 -0700 Message-ID: <20241003183342.679249-19-debug@rivosinc.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20241003183342.679249-1-debug@rivosinc.com> References: <20241003183342.679249-1-debug@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=debug@rivosinc.com; helo=mail-pj1-x1030.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org sspush/sspopchk have compressed encodings carved out of zcmops. compressed sspush is designated as c.mop.1 while compressed sspopchk is designated as c.mop.5. Note that c.sspush x1 exists while c.sspush x5 doesn't. Similarly c.sspopchk x5 exists while c.sspopchk x1 doesn't. Signed-off-by: Deepak Gupta Co-developed-by: Jim Shu Co-developed-by: Andy Chiu Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/insn16.decode | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/riscv/insn16.decode b/target/riscv/insn16.decode index 3953bcf82d..bf893d1c2e 100644 --- a/target/riscv/insn16.decode +++ b/target/riscv/insn16.decode @@ -140,6 +140,10 @@ sw 110 ... ... .. ... 00 @cs_w addi 000 . ..... ..... 01 @ci addi 010 . ..... ..... 01 @c_li { + # c.sspush x1 carving out of zcmops + sspush 011 0 00001 00000 01 &r2_s rs2=1 rs1=0 + # c.sspopchk x5 carving out of zcmops + sspopchk 011 0 00101 00000 01 &r2 rs1=5 rd=0 c_mop_n 011 0 0 n:3 1 00000 01 illegal 011 0 ----- 00000 01 # c.addi16sp and c.lui, RES nzimm=0 addi 011 . 00010 ..... 01 @c_addi16sp -- 2.45.0