Re: [libre-riscv-dev] LibreSOC - RISCV and POWER dual architecture feasibility

diff --git a/cc/4f78cc85e42d8e564002a5b05695b6e7d86114 b/cc/4f78cc85e42d8e564002a5b05695b6e7d86114
new file mode 100644 (file)
index 0000000..53c1e41
--- /dev/null
+++ b/cc/4f78cc85e42d8e564002a5b05695b6e7d86114
@@ -0,0 +1,108 @@
+Return-path: <libre-riscv-dev-bounces@lists.libre-riscv.org>
+Envelope-to: publicinbox@libre-riscv.org
+Delivery-date: Sun, 15 Mar 2020 19:52:33 +0000
+Received: from localhost ([::1] helo=libre-riscv.org)
+       by libre-riscv.org with esmtp (Exim 4.89)
+       (envelope-from <libre-riscv-dev-bounces@lists.libre-riscv.org>)
+       id 1jDZJI-0000Uh-LJ; Sun, 15 Mar 2020 19:52:32 +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 <lkcl@lkcl.net>) id 1jDZJH-0000Ub-Ov
+ for libre-riscv-dev@lists.libre-riscv.org; Sun, 15 Mar 2020 19:52:31 +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:To:Subject:Message-ID:Date:From:In-Reply-To:References:MIME-Version;
+ bh=Z5FGeb38XW4zNT2KOcFaO16UbtmcpJrABjM1QVBDi1k=; 
+ b=FjJ/0hpZnasy7SDmvPiRJ4colDBaRBsFCQ7pH6MZ2BwjBSH1indRp8xEfUuZ6br7c0EofDhkRVjdijC+gypyzQDml6a1UztiI5m1rJoDxPq+6tf6Q/OulXM869qiNpNm1nmRLyv3u+P8sfNytDAHWdb5BJ0otbqsgHBdcpPtjZU=;
+Received: from mail-lf1-f42.google.com ([209.85.167.42])
+ by lkcl.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
+ (Exim 4.84_2) (envelope-from <lkcl@lkcl.net>) id 1jDZJH-0008AB-E7
+ for libre-riscv-dev@lists.libre-riscv.org; Sun, 15 Mar 2020 19:52:31 +0000
+Received: by mail-lf1-f42.google.com with SMTP id j11so12180063lfg.4
+ for <libre-riscv-dev@lists.libre-riscv.org>;
+ Sun, 15 Mar 2020 12:52:16 -0700 (PDT)
+X-Gm-Message-State: ANhLgQ2Ll5wODjRIOOdW3ZwRMu2+be5digu/toiVxirZKo5NCxuTuPfw
+ 39jUACCnxrZp4hmH/9qBQqJGStpVxP02n9vf3Ms=
+X-Google-Smtp-Source: ADFU+vtid5ZOvU36gmE4RVn1L7yfZaJYb0z77V5yBj8dBG3w+V1+T2q1nA/eu/gtR0q4DQ1JWRG4DeGGzophl4cDlbU=
+X-Received: by 2002:a05:6512:3188:: with SMTP id
+ i8mr15282259lfe.26.1584301930548; 
+ Sun, 15 Mar 2020 12:52:10 -0700 (PDT)
+MIME-Version: 1.0
+References: <6AC4EFD4-AA30-42C7-855A-CE68A62F107F@gatech.edu>
+ <CAC2bXD6j_Swv4iOPMGC3ZgYpc8+ThqoFnOXqpXGkk4a1e_0Nqw@mail.gmail.com>
+ <20200315051018.svaw4aor7ifwn725@topoi.pooq.com>
+ <CAC2bXD7h90TXSCeFAM41NW-VbTizpWVueDu8KrmLHxBaX-7a=A@mail.gmail.com>
+ <E23AD06A-36A2-4322-98E3-20FBEC559026@gatech.edu>
+ <CAPweEDyaCDW575g4V7NQbiXhp+wLJR+EqaYjNHfHgpjnS7ENnQ@mail.gmail.com>
+ <1BB9EA49-275B-4365-963E-9FC21D574BB7@gatech.edu>
+ <16F24775-E25B-4E31-A1D4-145EB65FB1D8@gatech.edu>
+ <CAPweEDzeLs0br0dqzxdAWCovEBA0hyxBo89SPHykr3S7nTzBFg@mail.gmail.com>
+ <75CA4609-370F-455E-A88D-50E3766D45D7@gatech.edu>
+ <CAPweEDy4_=oHhz+nBZbjfUdbdVu-bHswHz+=QJhctOEzuWW0Yg@mail.gmail.com>
+ <884F8FEE-60FF-4580-A2E7-8AAA40A6DB6B@gatech.edu>
+In-Reply-To: <884F8FEE-60FF-4580-A2E7-8AAA40A6DB6B@gatech.edu>
+From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
+Date: Sun, 15 Mar 2020 19:51:59 +0000
+X-Gmail-Original-Message-ID: <CAPweEDz6KGOyQfcFV29WsC24esLHGFzWnqPL-3Dyp0-vX9r56Q@mail.gmail.com>
+Message-ID: <CAPweEDz6KGOyQfcFV29WsC24esLHGFzWnqPL-3Dyp0-vX9r56Q@mail.gmail.com>
+To: Libre-RISCV General Development <libre-riscv-dev@lists.libre-riscv.org>
+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
+ <libre-riscv-dev.lists.libre-riscv.org>
+List-Unsubscribe: <http://lists.libre-riscv.org/mailman/options/libre-riscv-dev>, 
+ <mailto:libre-riscv-dev-request@lists.libre-riscv.org?subject=unsubscribe>
+List-Archive: <http://lists.libre-riscv.org/pipermail/libre-riscv-dev/>
+List-Post: <mailto:libre-riscv-dev@lists.libre-riscv.org>
+List-Help: <mailto:libre-riscv-dev-request@lists.libre-riscv.org?subject=help>
+List-Subscribe: <http://lists.libre-riscv.org/mailman/listinfo/libre-riscv-dev>, 
+ <mailto:libre-riscv-dev-request@lists.libre-riscv.org?subject=subscribe>
+Reply-To: Libre-RISCV General Development
+ <libre-riscv-dev@lists.libre-riscv.org>
+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" <libre-riscv-dev-bounces@lists.libre-riscv.org>
+
+T24gU3VuLCBNYXIgMTUsIDIwMjAgYXQgNzozMyBQTSBJbW1hbnVlbCwgWWVob3dzaHVhIFUKPHlp
+bW1hbnVlbDNAZ2F0ZWNoLmVkdT4gd3JvdGU6Cj4KPiBPSy4KPgo+IFNvIHRvIHN1bSB1cCAtIHdl
+IGhhdmUgbGltaXRlZCBmdW5kaW5nIGN1cnJlbnRseSwgYW5kIHdlIHdhbnQgdG8gaGF2ZQo+IHNv
+bWV0aGluZyB0byBzaG93IGhvcGVmdWxseSBieSBPY3RvYmVyIC0KCndlJ3JlICpnb2luZyogdG8g
+bWVldCB0aGUgdGFwZW91dCBkZWFkbGluZSBpbiBPY3RvYmVyLiAgZXhhY3RseSB3aGF0CndpdGgg
+d2lsbCBiZSBjdXQgLSBpbiBhIGRyYWNvbmlhbiBhbmQgY2xpbmljYWwgZmFzaGlvbiAtIHRvICpt
+YWtlKgp0aGF0IGdvYWwgYWNoaWV2YWJsZS4KCj4gcHJvZ3Jlc3Mgb24gUklTQ1YgaXMgYWxyZWFk
+eSB3ZWxsIHVuZGVyd2F5LgoKd2FzLgoKKndhcyogdW5kZXJ3YXksIHVudGlsIHRoZSBSSVNDLVYg
+Rm91bmRhdGlvbiBmdWNrZWQgdXMgb3ZlciwgeWVzLgoKCj4gTGV0cyBtYWtlIHRoaXMgcHJvbWlu
+ZW50IG9uIHRoZSB3ZWJzaXRlIC0gdGhhdCB3ZeKAmXJlIGN1cnJlbnRseSBkb2luZyBEdWFsIElT
+QXMuCj4KPiBPbmNlIHdlIGRvIGdldCBhIGxvdCBvZiBtb3JlIGZ1bmRpbmcsIEkgd291bGQgZXZl
+bnR1YWxseSBsaWtlIHRvIG1vdmUgdG8gb25seSBzdXBwb3J0aW5nIG9uZSBhcmNoaXRlY3R1cmUg
+d2hpY2ggc2VlbXMgdG8gYmUgUE9XRVIgcmlnaHQgbm93LiBJIHNheSB0aGlzIGJlY2F1c2UgSSBi
+ZWxpZXZlIHN1cHBvcnRpbmcgRFVBTCBJU0EgZG93biB0aGUgcm9hZCB3aWxsIGNhdXNlIG1vcmUg
+aGVhZGFjaGVzIHRoYW4gaXRzIHdvcnRoLgoKd2VsbCwgb25jZSBpdCdzIGRvbmUgaXQncyBkb25l
+LgoKPiBOb3QgdGhhdCBpdCBpc27igJl0IHBvc3NpYmxlLCBidXQgaXRzIG5vdGFibHkgbm9uLXRy
+aXZpYWwgYW5kIGFkZHMgbGl0dGxlIHZhbHVlIHRvIG1vc3QgY3VzdG9tZXJzLgoKaG9uZXN0bHkg
+aSB0aGluayB5b3UncmUgcmlnaHQuICBpZiB3ZSB3ZXJlIGRvaW5nIEFSTSBvciB4ODYgRHVhbCBJ
+U0EsCmknZCBzYXkgaXQgaGFkICJyZWFsIHZhbHVlIi4KCj4gV2UgY2FuIGV4cGxhaW4gdGhpcyB0
+byBvdXIgYmFja2VycyAtIHBlb3BsZSBjYW4gYmUgZmxleGlibGUgLSBlc3BlY2lhbGx5IG92ZXIg
+YSBjdXAgb2YgdGVhLgo+Cj4gSG93ZXZlciBmb3IgcmlnaHQgbm93LCB0aGUgcmlzayBtaW5pbWl6
+aW5nIG1vdmUgKGlmIEkgdW5kZXJzdGFuZCBldmVyeXRoaW5nIGNvcnJlY3RseSkgaXMgdG8gbWFp
+bnRhaW4gdGhlIHBvc2l0aW9uIG9mIHN1cHBvcnRpbmcgYm90aCBJU0Egd2l0aCBpbmNyZW1lbnRh
+bCBhZGRpdGlvbnMgb2YgUE9XRVIuCgpiYXNpY2FsbHksIHNvIGFzIG5vdCB0byBiZSBjcml0aWNh
+bGx5IGRlcGVuZGVudCBvbiBpbnZlc3RtZW50LgoKb25lIG9mIHRoZSBiaWdnZXN0IG1pc3Rha2Vz
+IHRoYXQgYW55IGVudHJlcHJlbmV1cmlhbCB0ZWFtIGNhbiBtYWtlIGlzCnRvIG1ha2UgcGxhbnMg
+dGhhdCBBU1NVTUUgLSBhcyBhIGNyaXRpY2FsIGRlcGVuZGVuY3kgLSB0aGUgImV4aXN0ZW5jZQpv
+ZiBWQyBmdW5kaW5nIi4KCgo+IFdobyBrbm93cywgSSBjb3VsZCBiZSB3cm9uZy4gTWF5YmUgcGVv
+cGxlIHJlYWxseSB3b3VsZCBmaW5kIGEgdXNlIGZvciBkdWFsIElTQXMgLSBidXQgdXAgZnJvbnQs
+IHRvIGludmVzdG9yIGZvciBleGFtcGxlLCBhbmQgdG8gbWUsIGl0IGxvb2tzIHVubmVjZXNzYXJ5
+LgoKaWYgYW4gaW52ZXN0b3IgZHJvcCBVU0QgJDEwbSBvbnRvIHRoZSBwcm9qZWN0LCB0b21vcnJv
+dywgUklTQy1WIGdvZXMuCgppZiB0aGV5ICpkb24ndCosIHRoZW4gd2UgY2Fycnkgb24gd2l0aCB0
+aGUgcGxhbiB0aGF0IHdlIGhhdmUsIGFuZCB0aGF0Ciptb3N0IGxpa2VseSogbWVhbnMgYW4gaW5j
+cmVtZW50YWwgYm9vdHN0cmFwIHByb2Nlc3MgYnkgd2F5IG9mIFJWMzIKKE1pbmVydmEpLCBSVjY0
+LCBSVjY0R0MgKmFuZCB0aGVuKiBQT1dFUiAqYW5kIHRoZW4qIFNpbXBsZVYKCndoeT8KCmVhY2gg
+b2YgdGhvc2UgaXMgYSAqU01BTEwqIGluY3JlbWVudGFsIHN0ZXAuCgpsLgoKX19fX19fX19fX19f
+X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlicmUtcmlzY3YtZGV2IG1haWxp
+bmcgbGlzdApsaWJyZS1yaXNjdi1kZXZAbGlzdHMubGlicmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0
+cy5saWJyZS1yaXNjdi5vcmcvbWFpbG1hbi9saXN0aW5mby9saWJyZS1yaXNjdi1kZXYK