Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Sun, 15 Mar 2020 04:01:05 +0000 Received: from localhost ([::1] helo=libre-riscv.org) by libre-riscv.org with esmtp (Exim 4.89) (envelope-from ) id 1jDKSW-0007UQ-J9; Sun, 15 Mar 2020 04:01:04 +0000 Received: from lkcl.net ([217.147.94.29]) by libre-riscv.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1jDKSV-0007UK-8s for libre-riscv-dev@lists.libre-riscv.org; Sun, 15 Mar 2020 04:01:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lkcl.net; s=201607131; h=Content-Transfer-Encoding:Content-Type:Cc:To:Subject:Message-ID:Date:From:In-Reply-To:References:MIME-Version; bh=oudP4re+YaH1qZ+ydFYnwiw+dzDrijqFidwPHaG3a7s=; b=P5nORRlVCDT3LdgWBCA0k7FcnOzRjaL7SvErCmMxaej1f5mz9OFtEN0jVjB24TwdZwNUnBuM02/2YLGhPUEKPeURh7vCjNQKMf8EW9Am0n77Opx7dwT8pyelaSHI/x2gv/m/eN77w9gjCz1qZ3zrBu/kkKx+4/RCrFfscqZWZNI=; Received: from mail-lj1-f170.google.com ([209.85.208.170]) by lkcl.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1jDKSU-0006Ed-Md for libre-riscv-dev@lists.libre-riscv.org; Sun, 15 Mar 2020 04:01:02 +0000 Received: by mail-lj1-f170.google.com with SMTP id o10so14862918ljc.8 for ; Sat, 14 Mar 2020 21:00:47 -0700 (PDT) X-Gm-Message-State: ANhLgQ3y3sBId1Z7/SROH/0c7y5X+weAhU92ADSmBbgv44lb6R5f5DXn CADYxwJxGr54vx9XKVTYCTysiQ5ELtu/KZEgJSQ= X-Google-Smtp-Source: ADFU+vugzOeLEkcIkbhAeRMEGq/MKF+L+MtLUq1W4Em59IYX7n5E+iY6F4d49ZQUB4TNkEFqvWabMNva3y4sFoj6DDU= X-Received: by 2002:a2e:81cc:: with SMTP id s12mr11332010ljg.35.1584244841740; Sat, 14 Mar 2020 21:00:41 -0700 (PDT) MIME-Version: 1.0 References: <6AC4EFD4-AA30-42C7-855A-CE68A62F107F@gatech.edu> In-Reply-To: From: Luke Kenneth Casson Leighton Date: Sun, 15 Mar 2020 04:00:30 +0000 X-Gmail-Original-Message-ID: Message-ID: To: Libre-RISCV General Development Subject: Re: [libre-riscv-dev] LibreSOC - RISCV and POWER dual architecture feasibility 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" T24gU3VuLCBNYXIgMTUsIDIwMjAgYXQgMzoxNyBBTSBKYWNvYiBMaWZzaGF5IDxwcm9ncmFtbWVy amFrZUBnbWFpbC5jb20+IHdyb3RlOgo+Cj4gT24gU2F0LCBNYXIgMTQsIDIwMjAsIDE4OjAxIElt bWFudWVsLCBZZWhvd3NodWEgVSA8eWltbWFudWVsM0BnYXRlY2guZWR1Pgo+IHdyb3RlOgo+Cj4g PiBIZWxsbyBKYWNvYiwKPiA+ICAgICAgICAgSeKAmW0gcnVubmluZyB0aHJvdWdoIHRoZSBudW1i ZXJzIGFuZCBzdHVkeWluZyBMaWJyZVNPQ+KAmXMgcG90ZW50aWFsCj4gPiBtYXJrZXRzLCBhbmQg aG93IHdl4oCZZCBtYXJrZXQgdGhlIGR1YWwgYXJjaGl0ZWN0dXJlLgo+ID4gSnVzdCBob3cgZmVh c2libGUgaXMgdGhlIGR1YWwgYXJjaGl0ZWN0dXJlIHdl4oCZcmUgY3VycmVudGx5IGVtYmFya2lu ZyBvbi4KPiA+IEx1a2Ugc2F5cyBpdHMgZG9hYmxlLgo+ID4gV2hhdCBhcmUgeW91ciB0aG91Z2h0 cywgYW5kIHdoYXQgYXJlIHRoZSBjaGFsbGVuZ2VzIC0ganVzdCB0cnlpbmcgdG8gZ2V0IGEKPiA+ IGNvbXByZWhlbnNpdmUgdW5kZXJzdGFuZGluZy4KPiA+Cj4KPiBJdCB3aWxsIGJlIHF1aXRlIGVh c3kgdG8gZG8gZnJvbSB0aGUgaGFyZHdhcmUgc2lkZSBkdWUgdG8gdGhlIHJlbGF0aXZlCj4gc2lt cGxpY2l0eSBvZiB1c2VyLW1vZGUgUlY2NEdDIC0tIGJhc2ljYWxseSBhbGwgd2UgbmVlZCBpcyB0 byBkbyBpcwo+IGltcGxlbWVudCB0aGUgaW5zdHJ1Y3Rpb24gZGVjb2RlciBhbmQgY2xlYW4gdXAg dGhlIG9kZHMgYW5kIGVuZHMgdGhhdAo+IHJlc3VsdCBmcm9tIHRoZSBzZW1hbnRpYyBkaWZmZXJl bmNlcy4KCnByZXR0eSBtdWNoLiAgdGhlIFJWNjRHQyBkZWNvZGVyIHdvdWxkIG1hcCBvbnRvIHRo ZSBleGFjdCBzYW1lCmludGVybmFsIG9wZXJhdGlvbnMgKHRoZSBvbmVzIHRoYXQgYW50b24gYmxh bmNoYXJkIHN0YXJ0ZWQpLCBhbmQgd2UKd291bGQgZXhwYW5kIHRob3NlIGFzIG5lY2Vzc2FyeS4K Cmhvd2V2ZXIgdGhhdCdzIG5vdCB0aGUgbWFpbiBwcm9ibGVtCgp3ZSBhY3R1YWxseSBoYXZlIGEg c2VyaW91cyAiYm9vdHN0cmFwIiBwcm9ibGVtIGluIHRlcm1zIG9mIGltcGxlbWVudGluZyBQT1dF Ui4KCmhlcmUncyBob3cgaXQgd29ya3Mgd2l0aCBSSVNDLVY6CgoqIHRha2Ugc3Bpa2UsIGFuZCBh ZGQgU2ltcGxlViAoZG9uZSAtIHRvb2sgMi0zIG1vbnRocyBhcHB4KQoqIHRha2UgcmlzY3YtaXNh LXRlc3RzLCBhbmQgYWRkIFNpbXBsZVYgdW5pdCB0ZXN0cyAoZG9uZSAtIHRvb2sgYWJvdXQgMSBt b250aCkKKiBpbXBsZW1lbnQgYSBjb3JlIGluIGhhcmR3YXJlIGJ5IHRha2luZyBhbiBleGlzdGlu ZyBjb3JlIGFuZCBhZGRpbmcKaW4gb3VyIGVuZ2luZS4KKiBydW4gdGhlIEVYQUNUIFNBTUUgQkFS RSBNRVRBTCBVTklUIFRFU1RTLgoKaGFyZHdhcmUgaXMgYm9vdHN0cmFwcGVkLiAgaXQncyBkb25l IGluIGFuIGluY3JlbWVudGFsIGZhc2hpb24sICpvbmUqCnVua25vd24gYXQgYSB0aW1lLgoKbm93 IGxldCdzIGxvb2sgYXQgUE9XRVIuCgoxKSB3aGVyZSBhcmUgdGhlIHVuaXQgdGVzdHM/CjIpIHdo ZXJlIGlzIHRoZSBzaW11bGF0b3I/CjMpIHdoZXJlIGlzIHRoZSBwb3J0IG9mIHNvZnRmbG9hdC0z IHRoYXQgc3VwcG9ydHMgUE9XRVIgSUVFRTc1NCBmb3JtYXQ/CgphbmQgb24gdG9wIG9mIHRoaXMg Kk5PTi1FWElTVEVOVCogKG9yIGJhcmVseSBhZGVxdWF0ZSkgY29kZSwgd2Ugd2FudAp0byBhZGQg YSB2ZWN0b3Jpc2F0aW9uIHN5c3RlbSwgKmFuZCB0aGVuIGltcGxlbWVudCBpdCBpbiBoYXJkd2Fy ZSo/Cgp0aGF0J3MgYSBtaW5pbXVtIG9mICpmaXZlKiBleHRyZW1lbHkgbGFyZ2UgdW5rbm93bnMu Cgp3ZSB0aGVyZWZvcmUgaGF2ZSB0d28gcG90ZW50aWFsIGFwcHJvYWNoZXMgKHdoaWNoIHdlIG1h eSBoYXZlIHRvIGRvIGluCnBhcmFsbGVsKToKCjEpIGdldHRpbmcgYSBwb3dlciBpc2EgY3ljbGUt YWNjdXJhdGUgc2ltdWxhdG9yIHBsdXMgdW5pdCB0ZXN0cyBpcwphYnNvbHV0ZWx5IGVzc2VudGlh bC4KCjIpIGdldHRpbmcgdGhlIGNvcmUgd29ya2luZyBieSBib290c3RyYXBwaW5nIHVwIGluIG9u bHkgKm9uZSogdW5rbm93bgphdCBhIHRpbWUsIGFuZCB0aGF0IG1lYW5zIFJJU0MtVi4KCmFzICgx KSBpcyBhIHNvZnR3YXJlLW9ubHkgZWZmb3J0LCB3ZSBjYW4gY29udGludWUgd2l0aCAoMikgdG8g a2VlcApoYXJkd2FyZS1wZW9wbGUgYnVzeSBhbmQgb2NjdXBpZWQuCgpsLgoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlicmUtcmlzY3YtZGV2IG1haWxp bmcgbGlzdApsaWJyZS1yaXNjdi1kZXZAbGlzdHMubGlicmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0 cy5saWJyZS1yaXNjdi5vcmcvbWFpbG1hbi9saXN0aW5mby9saWJyZS1yaXNjdi1kZXYK