[libre-riscv-dev] [Bug 208] implement CORDIC in a general way sufficient to do transc...

diff --git a/00/7f4582dfd0cca4003894d09c5a687bd4135445 b/00/7f4582dfd0cca4003894d09c5a687bd4135445
new file mode 100644 (file)
index 0000000..eb5141e
--- /dev/null
+++ b/00/7f4582dfd0cca4003894d09c5a687bd4135445
@@ -0,0 +1,118 @@
+Return-path: <libre-riscv-dev-bounces@lists.libre-riscv.org>
+Envelope-to: publicinbox@libre-riscv.org
+Delivery-date: Tue, 05 May 2020 15:53:34 +0100
+Received: from localhost ([::1] helo=libre-riscv.org)
+       by libre-soc.org with esmtp (Exim 4.89)
+       (envelope-from <libre-riscv-dev-bounces@lists.libre-riscv.org>)
+       id 1jVyww-00047f-D8; Tue, 05 May 2020 15:53:34 +0100
+Received: from localhost ([127.0.0.1] helo=bugs.libre-soc.org)
+ by libre-soc.org with esmtp (Exim 4.89)
+ (envelope-from <bugzilla-daemon@libre-soc.org>) id 1jVywt-00047P-TF
+ for libre-riscv-dev@lists.libre-riscv.org; Tue, 05 May 2020 15:53:31 +0100
+From: bugzilla-daemon@libre-soc.org
+To: libre-riscv-dev@lists.libre-riscv.org
+Date: Tue, 05 May 2020 14:53:32 +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: mtnolan2640@gmail.com
+X-Bugzilla-Flags: 
+X-Bugzilla-Changed-Fields: 
+Message-ID: <bug-208-13-aOWXcJJZdu@https.bugs.libre-soc.org/>
+In-Reply-To: <bug-208-13@https.bugs.libre-soc.org/>
+References: <bug-208-13@https.bugs.libre-soc.org/>
+X-Bugzilla-URL: https://bugs.libre-soc.org/
+Auto-Submitted: auto-generated
+MIME-Version: 1.0
+Subject: [libre-riscv-dev] [Bug 208] implement CORDIC in a general way
+ sufficient to do transcendentals
+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>
+
+aHR0cHM6Ly9idWdzLmxpYnJlLXNvYy5vcmcvc2hvd19idWcuY2dpP2lkPTIwOAoKLS0tIENvbW1l
+bnQgIzQxIGZyb20gTHVrZSBLZW5uZXRoIENhc3NvbiBMZWlnaHRvbiA8bGtjbEBsa2NsLm5ldD4g
+LS0tCihJbiByZXBseSB0byBNaWNoYWVsIE5vbGFuIGZyb20gY29tbWVudCAjMzgpCj4gKEluIHJl
+cGx5IHRvIEx1a2UgS2VubmV0aCBDYXNzb24gTGVpZ2h0b24gZnJvbSBjb21tZW50ICMzNikKPiA+
+IAo+ID4gKGp1c3QgcnVubmluZyB0aGUgdGVzdHMsIHlvdSBmb3Jnb3QgdG8gY29tbWl0IGNvcmRp
+Yy9yZW5vcm1hbGl6ZS5weS4KPiA+ICBmb3IgZnV0dXJlIHJlZmVyZW5jZSwgdXNlICJnaXQgc3Rh
+dHVzIiBhbmQgeW91IHNob3VsZCBzcG90IG1pc3NpbmcKPiA+ICBmaWxlcywgZmFpcmx5IGVhc2ls
+eS4gIHRoYXQncyBpZiB3ZSdyZSBwcm9wZXJseSBtYWludGFpbmluZyAiLmdpdGlnbm9yZSIpCj4g
+Cj4gT29wcywgZml4ZWQhCgpiZWVuIHRoZXJlIDopCgo+ID4gaWYgaG93ZXZlciB3ZSBkbyBtYWNy
+by1vcCBmdXNpb24sIHNwb3R0aW5nIHR3byAoY29tbW9ubHktdXNlZCkKPiA+IG9wZXJhdGlvbnMg
+dG9nZXRoZXIsIHRoZSB0d28gcmVzdWx0cyAqd2lsbCogYmUgbmVlZGVkLgo+IAo+IEFoIG9rLCBz
+byBtYXliZSBJIHNob3VsZCBhZGQgYW4gaW5wdXQgdGhhdCBzZWxlY3RzIG9uZSBvciB0aGUgb3Ro
+ZXI/Cgp5ZXMuICBhbiAiT3AiLiAgdGhpcyBpcyB3aGF0IHRoZSAiT3AiIGZpZWxkIGlzIGZvci4u
+LiBzZWUuLi4gYWhoLi4gMXNlYy4uLgpEaXZQaXBlQ29yZUNvbmZpZyBhbmQgRGl2UGlwZUNvcmVP
+cGVyYXRpb24gKGV0Yy4pCgpodHRwczovL2dpdC5saWJyZS1zb2Mub3JnLz9wPWllZWU3NTRmcHUu
+Z2l0O2E9YmxvYjtmPXNyYy9pZWVlNzU0L2Rpdl9yZW1fc3FydF9yc3FydC9jb3JlLnB5O2g9ZmVh
+NTlkY2UwYzRmNzNkNjUyOTg1ZmFhODE4MWQ1YWY5N2Q1ODc3YztoYj1kZDM5MTlhMGRmOGUxMTkw
+ZjJmZTk4NWIwNDQ4NzAxZjE2NGIzOTJhI2w1NAoKd2hpY2ggaXMgc2V0IHVwIGFzIHRoZSAiY29u
+dGV4dCIgKGN0eCkgaGVyZToKaHR0cHM6Ly9naXQubGlicmUtc29jLm9yZy8/cD1pZWVlNzU0ZnB1
+LmdpdDthPWJsb2I7Zj1zcmMvaWVlZTc1NC9kaXZfcmVtX3NxcnRfcnNxcnQvZGl2X3BpcGUucHk7
+aD1kN2I4MTcyOTQ5OWI1ZDc2M2ViMWQxNTBiMDMxZGNlZWVmZWNiZGE5O2hiPWRkMzkxOWEwZGY4
+ZTExOTBmMmZlOTg1YjA0NDg3MDFmMTY0YjM5MmEjbDQyCgphbmQgaXQgaXMgb2YgdHlwZSAiRlBQ
+aXBlQ29udGV4dCIsIGRlY2xhcmVkIGhlcmU6Cmh0dHBzOi8vZ2l0LmxpYnJlLXNvYy5vcmcvP3A9
+aWVlZTc1NGZwdS5naXQ7YT1ibG9iO2Y9c3JjL2llZWU3NTQvZnBjb21tb24vZ2V0b3AucHk7aD0x
+MTdkMjkyMjNkMjNhYjgxNzYzODJlNzZiMmRkMTI5MzgyNzM1NzIxO2hiPWRkMzkxOWEwZGY4ZTEx
+OTBmMmZlOTg1YjA0NDg3MDFmMTY0YjM5MmEjbDY1CgphbmQgaWYgeW91IGxvb2sgYXQgbGluZXMg
+NjMgYW5kIDY1IHlvdSBjYW4gc2VlIHRoYXQgeW91IGNhbiBFSVRIRVI6CgoqIHNwZWNpZnkganVz
+dCBhIGJpdHdpZHRoIChpbiB3aGljaCBjYXNlIHlvdSBnZXQgYSBzaWduYWwgYW5kIGl0J3MKICB5
+b3VyIHJlc3BvbnNpYmlsaXR5IHRvIG1hbmFnZSBjb252ZXJzaW9uIGZyb20gdGhlICJvcCIgaW50
+byB0aGF0IFNpZ25hbCkKCk9SCgoqIHNwZWNpZnkgYW4gKmFjdHVhbCBjbGFzcyogYXMgYSBwYXJh
+bWV0ZXIgdG8gRlBQaXBlQ29udGV4dCwgYW5kIGFuIGluc3RhbmNlCiAgKm9mKiB0aGF0IGNsYXNz
+IHdpbGwgYmUgaW5zdGFudGlhdGVkIG9uIHlvdXIgYmVoYWxmLgoKaXQncyBhY3R1YWxseSByZWFs
+bHkgaW1wb3J0YW50IHRvIGNvbmZvcm0gdG8gdGhpcyBBUEkgYmVjYXVzZSBpdCdzIHdoZXJlCnRo
+ZSAiY2FuY2VsbGF0aW9uIiwgaWRlbnRpZmllciBpbmZvcm1hdGlvbiBldGMuIGNyaXRpY2FsbHkg
+bmVjZXNzYXJ5IGZvcgp0aGUgdXNlIG9mIHRoZSBwaXBlbGluZSBpbiB0aGUgc2NvcmVib2FyZCBz
+eXN0ZW0gaXMgYWxsIHBsYWNlZC4KCgoKPiAoa2luZGEKPiBzdWNrcyB0aGF0IHdlIG5lZWQgdG8g
+Y2FsY3VsYXRlIGJvdGggZm9yIHRoZSBjb3JkaWMgdG8gd29yaywgb2ggd2VsbCkKCjopCgpkaXZp
+ZGUgaXMgdGhlIHNhbWUuICBpdCBwcm9kdWNlcyB0d28gcmVzdWx0czogRElWIGFuZCBSRU0uCgpm
+YXNjaW5hdGluZ2x5IENPUkRJQyBhbmQgRElWIChhbmQgU1FSVCBhbmQgUlNRUlQpIGFsbCB1c2Ug
+dGhlIHNhbWUKY29yZSBjb25jZXB0IC8gYWxnb3JpdGhtLCBzbyBpdCBpcyBubyBzdXJwcmlzZSB0
+aGF0IHRoZXJlIGFyZSB0d28gcmVzdWx0cy4KCgo+IChJbiByZXBseSB0byBMdWtlIEtlbm5ldGgg
+Q2Fzc29uIExlaWdodG9uIGZyb20gY29tbWVudCAjMzcpCj4gPiBhaCBleGNlbGxlbnQhICB5b3Ug
+ZGlkIGEgRlNNLWJhc2VkIHZlcnNpb24gYXMgd2VsbCwgdGhhdCdzIHN1cGVyYi4KPiA+IGlmIHRo
+ZSBwaXBlbGluZWQgdmVyc2lvbiB0dXJucyBvdXQgdG8gYmUgaW5zYW5lbHkgZ2F0ZS1odW5ncnks
+IG9yCj4gPiBqdXN0IG5vdCB0aGF0IGltcG9ydGFudCwgd2UgY2FuIHVzZSBpdC4KPiAKPiBVbmZv
+cnR1bmF0ZWx5LCB0aGF0IG9uZSBpc24ndCBhcyBjb21wbGV0ZSBhcyB0aGUgcGlwZWxpbmVkIG9u
+ZS4gSXQgZG9lc24ndAo+IGhhbmRsZSBkZW5vcm1hbHMgb3IgMCB3ZWxsIGJlY2F1c2UgSSBoYWQg
+dG8gcm9sbCBteSBvd24gZGVub3JtYWxpemF0aW9uCj4gc3RhZ2UgaW5zdGVhZCBvZiB1c2luZyB0
+aGUgZXhpc3Rpbmcgb25lIGZyb20gdGhlIG11bHRpcGxpZXIuIEFuZCBpdCBkb2Vzbid0Cj4gKHll
+dCkgc3VwcG9ydCBjb252ZXJzaW9uIGJhY2sgaW50byBmbG9hdGluZyBwb2ludCBhdCB0aGUgZW5k
+LiAKCm9rIG5vdCBhIHByb2JsZW0uICBpdCBnb3QgeW91IGJvb3RzdHJhcHBlZCB0byB3aGVyZSB5
+b3UgbmVlZGVkIHRvIGdvLgpsZXQncyBsZWF2ZSBpdCBmb3Igbm93LCBidXQgZG8gZG9jdW1lbnQg
+dGhhdCAoYnJpZWZseSkuCgo+ID4gCj4gPiBhbHNvIGFzIGEgImdlbmVyYWwtcHVycG9zZSBsaWJy
+YXJ5IiBpdCdzIGV4dHJlbWVseSB1c2VmdWwgdG8gaGF2ZQo+ID4gYmVjYXVzZSBvdGhlciBkZXZl
+bG9wZXJzIG1pZ2h0IG5vdCB3YW50IGEgZnVsbCBwaXBlbGluZSB2ZXJzaW9uLgo+IAo+IE1ha2Vz
+IHNlbnNlLgoKY2FuIHlvdSBkbyB0aGF0IG1vdmU/ICB0aGUgdW5pdCB0ZXN0IGFzIHdlbGwuCgot
+LSAKWW91IGFyZSByZWNlaXZpbmcgdGhpcyBtYWlsIGJlY2F1c2U6CllvdSBhcmUgb24gdGhlIEND
+IGxpc3QgZm9yIHRoZSBidWcuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f
+X19fX19fX19fCmxpYnJlLXJpc2N2LWRldiBtYWlsaW5nIGxpc3QKbGlicmUtcmlzY3YtZGV2QGxp
+c3RzLmxpYnJlLXJpc2N2Lm9yZwpodHRwOi8vbGlzdHMubGlicmUtcmlzY3Yub3JnL21haWxtYW4v
+bGlzdGluZm8vbGlicmUtcmlzY3YtZGV2Cg==
+