From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Fri, 01 May 2020 21:23:39 +0100 Received: from localhost ([::1] helo=libre-riscv.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jUcCA-0006oR-Mk; Fri, 01 May 2020 21:23:38 +0100 Received: from localhost ([127.0.0.1] helo=bugs.libre-soc.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jUcC9-0006oF-De for libre-riscv-dev@lists.libre-riscv.org; Fri, 01 May 2020 21:23:37 +0100 From: bugzilla-daemon@libre-soc.org To: libre-riscv-dev@lists.libre-riscv.org Date: Fri, 01 May 2020 20:23:37 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Libre-SOC's first SoC X-Bugzilla-Component: Source Code X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: lkcl@lkcl.net X-Bugzilla-Status: CONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: lkcl@lkcl.net X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: https://bugs.libre-soc.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Subject: [libre-riscv-dev] [Bug 296] idea: cyclic buffer between FUs and register file X-BeenThere: libre-riscv-dev@lists.libre-riscv.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Libre-RISCV General Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Libre-RISCV General Development Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: libre-riscv-dev-bounces@lists.libre-riscv.org Sender: "libre-riscv-dev" Archived-At: List-Archive: aHR0cHM6Ly9idWdzLmxpYnJlLXNvYy5vcmcvc2hvd19idWcuY2dpP2lkPTI5NgoKLS0tIENvbW1l bnQgIzggZnJvbSBMdWtlIEtlbm5ldGggQ2Fzc29uIExlaWdodG9uIDxsa2NsQGxrY2wubmV0PiAt LS0KKEluIHJlcGx5IHRvIEphY29iIExpZnNoYXkgZnJvbSBjb21tZW50ICM3KQoKPiBUaGF0J3Mg dHJ1ZSBmb3IgY29ycmVjdG5lc3MsIGJ1dCBub3QgZm9yIHBlcmZvcm1hbmNlLiBEZWxheWluZyAy MCBjeWNsZXMgb24KPiBldmVyeSBmb3J3YXJkaW5nIG9wZXJhdGlvbiB3b3VsZCBzZXJpb3VzbHkg cmVkdWNlIHRoZSBwZXJmb3JtYW5jZSwgcHJvYmFibHkKPiBieSBhdCBsZWFzdCAxMHgsIHNvLCBv YnZpb3VzbHksIHRoYXQgc2hvdWxkIGJlIGF2b2lkZWQuCgpzb3JyeSwgaSBtZWFudCwgImRlbGF5 ZWQgbm90IGRlbGliZXJhdGVseSBidXQgYmVjYXVzZSB0aGUgdG90YWwgYmFuZHdpZHRoCihwYXRo cykgYmV0d2VlbiBGVS1yZXN1bHQgbGF0Y2hlcyBhbmQgRlUtaW5wdXQgbGF0Y2hlcyBpcyBsaW1p dGVkIi4KCndoZXRoZXIgdGhhdCBwYXRoIGlzIHZpYSB0aGUgcmVnZmlsZSBvciB2aWEgYSBmb3J3 YXJkaW5nIGJ1cyBkb2Vzbid0IG1hdHRlcjoKaWYgdGhlIGZvcndhcmRpbmcgYnVzIGlzbid0IGF2 YWlsYWJsZSBmb3IgNS0xMCBjeWNsZXMsIHRoZXJlJ3MgYWx3YXlzIHRoZQp3cml0ZS1wb3J0IG9u IHRoZSByZWdmaWxlLgoKTWl0Y2gncyBhbmFseXNpcyB3YXMsIGkgYmVsaWV2ZSwgdGhhdCB3ZSBz aG91bGQgZXhwZWN0IGEgcmF0aW8gb2YuLi4gd2hhdAp3YXMgaXQuLi4gMS4zIHJlZyByZWFkcyB0 byB3cml0ZXM/ICBpLmUuIGVhY2ggcmVzdWx0IHByb2R1Y2VkIGJ5IG9uZSBGVSBpcwoiY29uc3Vt ZWQiIGJ5IGFuIGF2ZXJhZ2Ugb2YgMS4zIG90aGVyIEZVcy4KCmhlIG5vdGVkIHRoYXQsIHRoZXJl Zm9yZSwgZXZlbiBpZiB0aGUgZm9yd2FyZGluZyBidXMgaXMgdXNlZCBqdXN0IG9uY2UsCmZvcndh cmRpbmcgdG8ganVzdCBvbmUgb3RoZXIgRlUgYmVmb3JlIHRoZSB2YWx1ZSBpcyBkcm9wcGVkIG9u IHRoZSBmbG9vciwKaW4gYSBjYXNjYWRlIGl0IGFjdHVhbGx5IHNhdmVzIGEgbG90IG9mIHJlZ2Zp bGUgYWN0aXZpdHkuCgp1bmZvcnR1bmF0ZWx5LCB0byByZWR1Y2UgdGhpcyByZWdmaWxlIHByZXNz dXJlIGFzc3VtZXMgdGhhdCB5b3UgY2FuIGRldGVjdAp3cml0ZS1hZnRlci13cml0ZSBhbmQgYWxz byAiZGlzY2FyZHMiLiAgdGhhdCAqaXMqIHBvc3NpYmxlLCBob3dldmVyIHRoZQpkaXNjdXNzaW9u IHdhcyBub3cgb3ZlciBhIHllYXIgYWdvLCBhbmQgd2Ugc2ltcGx5IGhhdmVuJ3QgZ290IHRpbWUg aW4KdGhpcyByb3VuZCB0byBtYWtlIHRoZSBuZWNlc3NhcnkgRE0gbW9kaWZpY2F0aW9ucy4KCnNv IHdoYXQgd2Ugd2lsbCBnYWluIHdpdGggYSBmb3J3YXJkaW5nIGJ1cyBpczogZGVjcmVhc2VkIGxh dGVuY3kuICB0aGlzIGJlY2F1c2UKd2l0aCB0aGUgcmVnaXN0ZXIgZmlsZSBiZWluZyBhIGJvdHRs ZW5lY2ssIGV2ZW4gb25lIGV4dHJhIGJ1cyAoZndkKSBtZWFucyB0aGF0CnNvbWUgb2YgdGhlIG9w ZXJhdGlvbnMgdGhhdCB3b3VsZCBvdGhlcndpc2UgbmVlZCB0byBoYXZlIHdhaXRlZCBmb3IgdGhl IHdyaXRlCihhbmQgZm9sbG93dXAgcmVhZCkgdGhyb3VnaCB0aGUgcmVnZmlsZSwgaW5zdGVhZCBt YXkgc3RhcnQgdGhhdCBtdWNoIGVhcmxpZXIuCgp5ZXMsIHVsdGltYXRlbHk6IGlmIGFjY2VzcyB0 byB0aGF0IGZvcndhcmRpbmcgYnVzICh3aGljaCBfd2lsbF8gaXRzZWxmIGJlCnJlc291cmNlLWNv bnRlbmRlZCkgY2FuIGJlIGRvbmUgZWFybHkgKHNhbWUgY2xvY2sgY3ljbGUsIGV2ZW4pLCBvYnZp b3VzbHkgdGhhdApsYXRlbmN5IGlzIGRlY3JlYXNlZCBtdWNoIG1vcmUuCgpzdW1tYXJ5OiBmb3Ig YSA2NjAwLWJhc2VkIERNIHN5c3RlbSBpdCdzIHN0cm9uZ2x5IGRlc2lyYWJsZSBmb3IgdGhlIGZ3 ZApidXMgdG8gYmUgc2FtZSAob3IgMSBjbG9jaykgY3ljbGU6IGl0J3Mgbm90IGhvd2V2ZXIgYSBt YWtlLW9yLWJyZWFrIG1hbmRhdG9yeQpyZXF1aXJlbWVudC4gIGZvciBhbiBpbi1vcmRlciBzeXN0 ZW0sIG9uIHRoZSBvdGhlciBoYW5kLCBpdCdzIG5vdCBvbmx5CmZhciBtb3JlIGRpZmZpY3VsdCB0 byAqYWRkKiBhIGZvcndhcmRpbmcgYnVzLCBpdCBpcywgaWYgaSByZWNhbGwgY29ycmVjdGx5LAp0 aW1pbmctY3JpdGljYWwuICBpLmUuIHRoZSBjb25zZXF1ZW5jZXMgb2YgbWlzc2luZyB0aGUgc2xv dCBhcmUgdGhhdCB0aGUKZW50aXJlIHBpcGVsaW5lIChyaWdodCB0aGUgd2F5IGJhY2sgdG8gaXNz dWUpIGlzIGZvcmNlZCB0byBzdGFsbC4KCi0tIApZb3UgYXJlIHJlY2VpdmluZyB0aGlzIG1haWwg YmVjYXVzZToKWW91IGFyZSBvbiB0aGUgQ0MgbGlzdCBmb3IgdGhlIGJ1Zy4KX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlicmUtcmlzY3YtZGV2IG1haWxp bmcgbGlzdApsaWJyZS1yaXNjdi1kZXZAbGlzdHMubGlicmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0 cy5saWJyZS1yaXNjdi5vcmcvbWFpbG1hbi9saXN0aW5mby9saWJyZS1yaXNjdi1kZXYK