[libre-riscv-dev] [Bug 267] New: The efficiency of adder/subtractor

diff --git a/ae/78adbe7962231656fd24cdeb0999fdade2b308 b/ae/78adbe7962231656fd24cdeb0999fdade2b308
new file mode 100644 (file)
index 0000000..840afcf
--- /dev/null
+++ b/ae/78adbe7962231656fd24cdeb0999fdade2b308
@@ -0,0 +1,84 @@
+Return-path: <libre-riscv-dev-bounces@lists.libre-riscv.org>
+Envelope-to: publicinbox@libre-riscv.org
+Delivery-date: Thu, 26 Mar 2020 22:05:32 +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 1jHad1-0005vl-33; Thu, 26 Mar 2020 22:05:31 +0000
+Received: from localhost ([127.0.0.1] helo=bugs.libre-riscv.org)
+ by libre-riscv.org with esmtp (Exim 4.89)
+ (envelope-from <bugzilla-daemon@libre-riscv.org>) id 1jHacz-0005ve-MN
+ for libre-riscv-dev@lists.libre-riscv.org; Thu, 26 Mar 2020 22:05:29 +0000
+From: bugzilla-daemon@libre-riscv.org
+To: libre-riscv-dev@lists.libre-riscv.org
+Date: Thu, 26 Mar 2020 22:05:29 +0000
+X-Bugzilla-Reason: CC
+X-Bugzilla-Type: new
+X-Bugzilla-Watch-Reason: None
+X-Bugzilla-Product: Libre-SOC's first SoC
+X-Bugzilla-Component: ALU (including IEEE754 16/32/64-bit FPU)
+X-Bugzilla-Version: unspecified
+X-Bugzilla-Keywords: 
+X-Bugzilla-Severity: enhancement
+X-Bugzilla-Who: tanner.of.kha@gmail.com
+X-Bugzilla-Status: CONFIRMED
+X-Bugzilla-Resolution: 
+X-Bugzilla-Priority: ---
+X-Bugzilla-Assigned-To: lkcl@lkcl.net
+X-Bugzilla-Flags: 
+X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform
+ op_sys bug_status bug_severity priority component assigned_to reporter cc
+ cf_nlnet_milestone
+Message-ID: <bug-267-13@http.bugs.libre-riscv.org/>
+X-Bugzilla-URL: http://bugs.libre-riscv.org/
+Auto-Submitted: auto-generated
+MIME-Version: 1.0
+Subject: [libre-riscv-dev] [Bug 267] New: The efficiency of adder/subtractor
+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>
+
+aHR0cDovL2J1Z3MubGlicmUtcmlzY3Yub3JnL3Nob3dfYnVnLmNnaT9pZD0yNjcKCiAgICAgICAg
+ICAgIEJ1ZyBJRDogMjY3CiAgICAgICAgICAgU3VtbWFyeTogVGhlIGVmZmljaWVuY3kgb2YgYWRk
+ZXIvc3VidHJhY3RvcgogICAgICAgICAgIFByb2R1Y3Q6IExpYnJlLVNPQydzIGZpcnN0IFNvQwog
+ICAgICAgICAgIFZlcnNpb246IHVuc3BlY2lmaWVkCiAgICAgICAgICBIYXJkd2FyZTogUEMKICAg
+ICAgICAgICAgICAgIE9TOiBXaW5kb3dzCiAgICAgICAgICAgIFN0YXR1czogQ09ORklSTUVECiAg
+ICAgICAgICBTZXZlcml0eTogZW5oYW5jZW1lbnQKICAgICAgICAgIFByaW9yaXR5OiAtLS0KICAg
+ICAgICAgQ29tcG9uZW50OiBBTFUgKGluY2x1ZGluZyBJRUVFNzU0IDE2LzMyLzY0LWJpdCBGUFUp
+CiAgICAgICAgICBBc3NpZ25lZTogbGtjbEBsa2NsLm5ldAogICAgICAgICAgUmVwb3J0ZXI6IHRh
+bm5lci5vZi5raGFAZ21haWwuY29tCiAgICAgICAgICAgICAgICBDQzogbGlicmUtcmlzY3YtZGV2
+QGxpc3RzLmxpYnJlLXJpc2N2Lm9yZwogICBOTG5ldCBtaWxlc3RvbmU6IC0tLQoKRnJvbSB0aGUg
+dGFzayBodHRwOi8vYnVncy5saWJyZS1yaXNjdi5vcmcvc2hvd19idWcuY2dpP2lkPTIxNwoKKElu
+IHJlcGx5IHRvIEx1a2UgS2VubmV0aCBDYXNzb24gTGVpZ2h0b24gZnJvbSBjb21tZW50ICM0MikK
+PiAoSW4gcmVwbHkgdG8gSm9jayBUYW5uZXIgZnJvbSBjb21tZW50ICM0MSkKPiA+IEkgdGhpbmsg
+bW9zdCBBTFVzCj4gPiBqdXN0IG5lZ2F0ZSBhbmQgYWRkIGluc3RlYWQgb2Ygc3VidHJhY3QuIEkg
+dGhpbmsgdGhpcyB3b3VsZCB1c2UgYSBiaXQgbGVzcwo+ID4gbG9naWMsIGFuZCBuZWdhdGlvbiBp
+biBpdHNlbGYgaXMgYWxzbyBhIHVzZWZ1bCBvcGVyYXRpb24uCj4gCj4geWVzLiBpbiB0aGUgInJl
+YWwiIGFsdSB3ZSBoYXZlLi4uIG1tbS4uLiBub3Qgc3VyZSwgYWN0dWFsbHkuICBwcm9iYWJseSAt
+Cj4gCj4gZG8gbWUgYSBmYXZvdXIgYW5kIHJhaXNlIGEgYnVncmVwb3J0IGFzIGEgcmVtaW5kZXIg
+dG8gbG9vayB1cCB3aGF0Cj4gcm9ja2V0Y2hpcCBkb2VzPwoKQWN0dWFsbHkgSSB3YXMgdGhpbmtp
+bmcgYWJvdXQgd2hhdCBIYXJyaXMmSGFycmlzIHN1Z2dlc3RlZCBpbiB0aGVpciBmYW1vdXMKYm9v
+ay4gWW91IGp1c3QgaGF2ZSB0byBoYXZlIGFuIGludmVydGVyIG9uIG9uZSBvcGVyYW5kIGlucHV0
+IG9mIGFuIGFkZGVyLiBUaGUKdHdvJ3MgY29tcGxlbWVudCBvZiB0aGF0IG9wZXJhbmQgY2FuIGJl
+IGFjaGlldmVkIHZpYSB0aGUgY2FycnkgaW5wdXQuCgotLSAKWW91IGFyZSByZWNlaXZpbmcgdGhp
+cyBtYWlsIGJlY2F1c2U6CllvdSBhcmUgb24gdGhlIENDIGxpc3QgZm9yIHRoZSBidWcuCl9fX19f
+X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpYnJlLXJpc2N2LWRl
+diBtYWlsaW5nIGxpc3QKbGlicmUtcmlzY3YtZGV2QGxpc3RzLmxpYnJlLXJpc2N2Lm9yZwpodHRw
+Oi8vbGlzdHMubGlicmUtcmlzY3Yub3JnL21haWxtYW4vbGlzdGluZm8vbGlicmUtcmlzY3YtZGV2
+Cg==
+