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 7EBD0C54743 for ; Tue, 27 Aug 2024 23:23:07 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sj5Ta-0004bq-00; Tue, 27 Aug 2024 19:19:50 -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 1sj5TM-0003hp-61 for qemu-riscv@nongnu.org; Tue, 27 Aug 2024 19:19:37 -0400 Received: from mail-pl1-x635.google.com ([2607:f8b0:4864:20::635]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sj5TK-0000vy-MT for qemu-riscv@nongnu.org; Tue, 27 Aug 2024 19:19:35 -0400 Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-201ee6b084bso52255425ad.2 for ; Tue, 27 Aug 2024 16:19:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1724800773; x=1725405573; 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=8Cl5ZRMk7pbT7QMKFwfdbtGEqWg7VKl5rT980Ov9IbY=; b=DU4wPHo1CTfZ2dDQxD19WDRvziwcfBmJctdAK66B3miBUIjIPrKlbje5IH1nxRPr11 jj6EnU8P06rwUb6P4ylfb/x4VxOyEA7wz6U9oxemlXxqyzIiM5zKXrpgk22c7QaOvFsB i6MNq6PvvV3cqCxon86OZ4g5ugtMxKHM33hP2lJ+HZD5JP7prpeei51SGoByrq6Q5yQh 1TyylWh94+KAOws1BgPVs9ad2JRlRtGyFI1ewJJG2vFHei+IZb1mhOAlIA8mzBqHfVtD olYndsg37IGS2WewRqtxBDF7jMljf/QwS30BPQ3Zmw5h586D/dK18TO2Yx1YMqvPS/z/ kc5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724800773; x=1725405573; 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=8Cl5ZRMk7pbT7QMKFwfdbtGEqWg7VKl5rT980Ov9IbY=; b=KBzmihR1rCCQd7Objsf6NHrSHH8OnU0/wvz9WBJfpu1flPew0hNJTEHDlp1+eW7sn0 1WB8BA6lR7taC9hUwvwIRmIfDgR2xp/UwI5VoYA43bqfvyociwTKO5NQfx4H76G6SzIs R4NwtvkE9qfrDUrw48W6RhKravHMkj7rShRW/8+49D76pd8o3srRh2rqeUOFnOH7Hxag XRF2v1gNbknJvOavs+aq2TaOzctHVlByXBjQCO7UKeUNsBzXxnvmTyghFLXwVYQl0qin 6CZd+TzzEMlAJFUBde3WtCA9EmDXqg0TYaVkb2Ej3nMp07lVfDmBgHnZ6LQXomn4PQr/ SU2g== X-Gm-Message-State: AOJu0YysUVO4TTR0UPUpFAiKXHRPRR+CSO7VNE+xh6qkckzMj5b+hg+6 ff44gdA/qQZqGA46BBnqa290G/tzZX1JYgpBsvZzpq3q1q8W7OGH3mxbpJ3wZv7EPXnKfIygQUx Z X-Google-Smtp-Source: AGHT+IGMyS2xeV4dfpUDYsoQc7eXN0S8sTA7zeAbjMPkh25dCcTm6dNqreFXiKunFNQLfl2XysLoRg== X-Received: by 2002:a17:902:d504:b0:202:3762:ff88 with SMTP id d9443c01a7336-204f9c88ee1mr3937605ad.63.1724800773193; Tue, 27 Aug 2024 16:19:33 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-203b0ee6179sm57785155ad.92.2024.08.27.16.19.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2024 16:19:32 -0700 (PDT) From: Deepak Gupta To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, Alistair.Francis@wdc.com, laurent@vivier.eu, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jim.shu@sifive.com, andy.chiu@sifive.com, kito.cheng@sifive.com, Deepak Gupta , Richard Henderson Subject: [PATCH v10 18/21] target/riscv: compressed encodings for sspush and sspopchk Date: Tue, 27 Aug 2024 16:19:02 -0700 Message-ID: <20240827231906.553327-19-debug@rivosinc.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240827231906.553327-1-debug@rivosinc.com> References: <20240827231906.553327-1-debug@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=debug@rivosinc.com; helo=mail-pl1-x635.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, T_SCC_BODY_TEXT_LINE=-0.01 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 --- 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 -- 2.44.0