--- /dev/null
+Return-path: <libre-riscv-dev-bounces@lists.libre-riscv.org>
+Envelope-to: publicinbox@libre-riscv.org
+Delivery-date: Tue, 07 Apr 2020 12:48:41 +0100
+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 1jLmie-0002yZ-D9; Tue, 07 Apr 2020 12:48:40 +0100
+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 1jLmic-0002yP-AB
+ for libre-riscv-dev@lists.libre-riscv.org; Tue, 07 Apr 2020 12:48:38 +0100
+From: bugzilla-daemon@libre-riscv.org
+To: libre-riscv-dev@lists.libre-riscv.org
+Date: Tue, 07 Apr 2020 11:48:38 +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: ALU (including IEEE754 16/32/64-bit FPU)
+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: <bug-267-13-B3p2azWjAj@http.bugs.libre-riscv.org/>
+In-Reply-To: <bug-267-13@http.bugs.libre-riscv.org/>
+References: <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] 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>
+
+aHR0cDovL2J1Z3MubGlicmUtcmlzY3Yub3JnL3Nob3dfYnVnLmNnaT9pZD0yNjcKCi0tLSBDb21t
+ZW50ICM1IGZyb20gTHVrZSBLZW5uZXRoIENhc3NvbiBMZWlnaHRvbiA8bGtjbEBsa2NsLm5ldD4g
+LS0tCihJbiByZXBseSB0byBKb2NrIFRhbm5lciBmcm9tIGNvbW1lbnQgIzQpCj4gKEluIHJlcGx5
+IHRvIEx1a2UgS2VubmV0aCBDYXNzb24gTGVpZ2h0b24gZnJvbSBjb21tZW50ICMzKQo+ID4gaWYg
+eW91IGNhbiBwdXQgc29tZSBsaW5rcyBoZXJlIGFzIHRvIHdoYXQgeW91J3JlIGNvbXBhcmluZyAo
+ZGVzY3JpcHRpb25zLAo+ID4gdHV0b3JpYWxzLCBnYXRlLWxldmVsIGRpYWdyYW1zKSBpIGNhbiBn
+ZXQgdXAgdG8gc3BlZWQgYW5kIGZvbGxvdyB0aGUKPiA+IGNvbnZlcnNhdGlvbi4KPiAKPiBJIG1v
+c3RseSByZWx5IG9uIGEgY29sbGVnZSB0ZXh0Ym9vayBieSBEYXZpZCAmIFNhcmFoIEhhcnJpcywg
+bmFtZWQg4oCcRGlnaXRhbAo+IERlc2lnbiBhbmQgQ29tcHV0ZXIgQXJjaGl0ZWN0dXJl4oCdLiBJ
+IHJlYWQgaXQgb25seSBpbiBSdXNzaWFuIHRob3VnaC4gVGhlCj4gYm9vayBoYXMgYSB2ZXJ5IGRl
+dGFpbGVkIGV4cGxhbmF0aW9uIG9mIGNhcnJ5LWxvb2thaGVhZCBhZGRlciwgd2l0aCB0cnV0aAo+
+IHRhYmxlcyBhbmQgc2NoZW1hdGljcy4KCmludGVyZXN0aW5nLiAgd2VsbCwgd2hhdCB3ZSB3aWxs
+IGJlIHJlbHlpbmcgb24gaXMgeW9zeXMgInN5bnRoIiBjb21tYW5kCnR1cm5pbmcgdGhpbmdzIGZy
+b20gaGlnaC1sZXZlbCAid2Ugd2FudCBhbiBOLWJpdCBhZGRlciIgaW50byBsb3ctbGV2ZWwKInRo
+ZXNlIDQtYml0IGFkZGVycyBhbmQgZXRjLiBldGMuIGdldCBjcmVhdGVkIi4KCndlIGFyZSBwcmV0
+dHkgbXVjaCB0cnVzdGluZyB5b3N5cyAic3ludGgiIHRvIGhhdmUgdGhlIG9wdGltYWwgc3RhdGUt
+b2YtdGhlLWFydApsYXRlc3QgaW5kdXN0cnktcmVjb2duaXNlZCAidGhpbmciLgoKCj4gVmVyeSBy
+b3VnaGx5IHNwZWFraW5nLCBOLWJpdCByaXBwbGUtY2FycnkgYWRkZXIgdGFrZXMgYSpOIHRyYW5z
+aXN0b3JzIGFuZAo+IGIqTiB0aW1lIGZvciBjYWxjdWxhdGlvbiwgd2hpbGUgc3RyYWlnaHQtb3V0
+IGNhcnJ5LWxvb2thaGVhZCBhZGRlciB0YWtlcyBhXk4KPiB0cmFuc2lzdG9ycyBhbmQgYiB0aW1l
+LiBBRkFJSyBpbiBwcmFjdGljYWwgQUxVIGRlc2lnbiB0aGV5IGFsd2F5cyBtYWtlIGEKPiBjb21w
+cm9taXNlIGJldHdlZW4gdGhlIHR3by4gQW5kIEkganVzdCB3b25kZXIgd2hhdCBraW5kIG9mIGNv
+bXByb21pc2UgY291bGQKPiBiZSBzdWl0YWJsZSBmb3IgKnJlY29uZmlndXJhYmxlKiwgaGlnaC1z
+cGVlZCBBTFUuCgppIGhvbmVzdGx5IGhhdmUgbm8gaWRlYSEgOikKCnRoZSBiYXNpYyB1bml0cyB3
+aWxsIGFjdHVhbGx5IGJlIGEgNjQrOC1iaXQgYWRkICh5ZXMgNzIgYml0KS4KCmh0dHBzOi8vZ2l0
+LmxpYnJlLXJpc2N2Lm9yZy8/cD1pZWVlNzU0ZnB1LmdpdDthPWJsb2I7Zj1zcmMvaWVlZTc1NC9w
+YXJ0X211bF9hZGQvYWRkZXIucHk7aD1lMTg0OWI0ZDI1ZmM1ZWM0ZmM0NDczY2MwMmIzMmY0OWRk
+NTkxMmIyO2hiPTc3ZjE1MGNmZjQ0MGJlZDAyNWUyNDg3YjZmMGZjZGE5ZjUyOTI5MGIjbDEwOAoK
+c2VlIHRoZSBjb21tZW50IGRlc2NyaXB0aW9uIHRoZXJlIG9mIGhvdyBpdCB3b3JrcwoKdGhlICJw
+YXJ0aXRpb25zIiBhcmUgZG9uZSB2aWEgdGhlIGluc2VydGlvbiBvZiB0aG9zZSAiZXh0cmEgYml0
+cyIuCgp0aG9zZSAiZXh0cmEgYml0cyIgd2lsbCBiZSBzZXQgdG8gMCB0byBjcmVhdGUgYSBwYXJ0
+aXRpb24sIGFuZCAiMSIKdG8gZ2V0IGEgcm9sbC1vdmVyLgoKCnNvIHdlJ3JlIG5vdCAqYWN0dWFs
+bHkqICJwYXJ0aXRpb25pbmciIGludG8gY29tcGxldGVseSBzZXBhcmF0ZSA4LWJpdCBhZGRlcnMu
+Cgp0aGVyZWZvcmUgaSB3b3VsZCBoYXphcmQgYSBndWVzcyB0aGF0IHRoZSAodW5kZXJseWluZyA3
+Mi1iaXQpIGFkZGVycyBhcmUKcHJvcGVybHkgb3B0aW1pc2VkIGJ5IHlvc3lzICJzeW50aCIgY29t
+bWFuZCB0byBnaXZlIGEgZGVjZW50IGZhc3QgYWRkZXIsCnRodXMgZ2l2aW5nIHVzIHRoZSAiYmVz
+dCBvZiBib3RoIHdvcmxkcyIuCgppbiBvdGhlciB3b3JkcywgYSBxdWljayBhbmFseXNpcyBsZWFk
+cyBtZSB0byBiZWxpZXZlIHRoYXQgd2hhdCB3ZSdyZSB1c2luZwppcyAqbm90KiBhZHZlcnNlbHkg
+aW1wYWN0ZWQganVzdCBiZWNhdXNlIGl0J3MgYSBwYXJ0aXRpb25lZCBhZGRlci4KCml0IGhhcyB0
+aGUgKmZ1bmN0aW9uYWxpdHkqIG9mIGEgcGFydGl0aW9uZWQgYWRkZXIgYnV0IGlzIGluIGZhY3Qg
+YSA3Mi1iaXQKInN0cmFpZ2h0IiAobm9ybWFsKSBhZGQuCgotLSAKWW91IGFyZSByZWNlaXZpbmcg
+dGhpcyBtYWlsIGJlY2F1c2U6CllvdSBhcmUgb24gdGhlIENDIGxpc3QgZm9yIHRoZSBidWcuCl9f
+X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpYnJlLXJpc2N2
+LWRldiBtYWlsaW5nIGxpc3QKbGlicmUtcmlzY3YtZGV2QGxpc3RzLmxpYnJlLXJpc2N2Lm9yZwpo
+dHRwOi8vbGlzdHMubGlicmUtcmlzY3Yub3JnL21haWxtYW4vbGlzdGluZm8vbGlicmUtcmlzY3Yt
+ZGV2Cg==
+