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<a href="scalar__4x64__impl_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2013, 2014 Pieter Wuille *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Distributed under the MIT software license, see the accompanying *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * file COPYING or http://www.opensource.org/licenses/mit-license.php.*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef _SECP256K1_SCALAR_REPR_IMPL_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define _SECP256K1_SCALAR_REPR_IMPL_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">/* Limbs of the secp256k1 order. */</span></div><div class="line"><a name="l00011"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a9e65a0592c11e099de8e8f58b38a14ae"> 11</a></span> <span class="preprocessor">#define SECP256K1_N_0 ((uint64_t)0xBFD25E8CD0364141ULL)</span></div><div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2"> 12</a></span> <span class="preprocessor">#define SECP256K1_N_1 ((uint64_t)0xBAAEDCE6AF48A03BULL)</span></div><div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3"> 13</a></span> <span class="preprocessor">#define SECP256K1_N_2 ((uint64_t)0xFFFFFFFFFFFFFFFEULL)</span></div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a1d38f968c428d48fe1041ef38eec96d4"> 14</a></span> <span class="preprocessor">#define SECP256K1_N_3 ((uint64_t)0xFFFFFFFFFFFFFFFFULL)</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">/* Limbs of 2^256 minus the secp256k1 order. */</span></div><div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece"> 17</a></span> <span class="preprocessor">#define SECP256K1_N_C_0 (~SECP256K1_N_0 + 1)</span></div><div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c"> 18</a></span> <span class="preprocessor">#define SECP256K1_N_C_1 (~SECP256K1_N_1)</span></div><div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a2ba4e9e828bc0a11cf7ffc81cd823509"> 19</a></span> <span class="preprocessor">#define SECP256K1_N_C_2 (1)</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/* Limbs of half the secp256k1 order. */</span></div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a824415debca677af24eb249946df4404"> 22</a></span> <span class="preprocessor">#define SECP256K1_N_H_0 ((uint64_t)0xDFE92F46681B20A0ULL)</span></div><div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a93c4692d6cad53df3cce3fb4631dee82"> 23</a></span> <span class="preprocessor">#define SECP256K1_N_H_1 ((uint64_t)0x5D576E7357A4501DULL)</span></div><div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a5dfabdaac8359544dd1131ca3af807ae"> 24</a></span> <span class="preprocessor">#define SECP256K1_N_H_2 ((uint64_t)0xFFFFFFFFFFFFFFFFULL)</span></div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#ac658856dbff7e81aca7cdd131c05dde4"> 25</a></span> <span class="preprocessor">#define SECP256K1_N_H_3 ((uint64_t)0x7FFFFFFFFFFFFFFFULL)</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a2381b5d7e18f94758064a32fbf5d54bb"> 27</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a2381b5d7e18f94758064a32fbf5d54bb">secp256k1_scalar_clear</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r) {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = 0;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = 0;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = 0;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = 0;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> }</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a6b16ea07b106f63ec6581124e1e6d75e"> 34</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a6b16ea07b106f63ec6581124e1e6d75e">secp256k1_scalar_set_int</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> v) {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = v;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = 0;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = 0;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = 0;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#ab04554d2542b54bc5acd443ab9eb99a1"> 41</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#ab04554d2542b54bc5acd443ab9eb99a1">secp256k1_scalar_get_bits</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> offset, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>) {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>((offset + <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a> - 1) >> 6 == offset >> 6);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>) - 1);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a1f879094999b165babd24ee1f8ab0346"> 46</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a1f879094999b165babd24ee1f8ab0346">secp256k1_scalar_get_bits_var</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> offset, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>) {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a> < 32);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(offset + <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a> <= 256);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> ((offset + <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a> - 1) >> 6 == offset >> 6) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> <a class="code" href="scalar__4x64__impl_8h.html#ab04554d2542b54bc5acd443ab9eb99a1">secp256k1_scalar_get_bits</a>(a, offset, <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>((offset >> 6) + 1 < 4);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> ((a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[offset >> 6] >> (offset & 0x3F)) | (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[(offset >> 6) + 1] << (64 - (offset & 0x3F)))) & ((((uint64_t)1) << <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>) - 1);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb"> 57</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">int</span> yes = 0;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">int</span> no = 0;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] < <a class="code" href="scalar__4x64__impl_8h.html#a1d38f968c428d48fe1041ef38eec96d4">SECP256K1_N_3</a>); <span class="comment">/* No need for a > check. */</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] < <a class="code" href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3">SECP256K1_N_2</a>);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] > <a class="code" href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3">SECP256K1_N_2</a>) & ~no;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] < <a class="code" href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2">SECP256K1_N_1</a>);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] > <a class="code" href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2">SECP256K1_N_1</a>) & ~no;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >= <a class="code" href="scalar__4x64__impl_8h.html#a9e65a0592c11e099de8e8f58b38a14ae">SECP256K1_N_0</a>) & ~no;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> yes;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a"> 69</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a">secp256k1_scalar_reduce</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> overflow) {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  uint128_t t;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(overflow <= 1);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  t = (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] + overflow * <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  t += (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] + overflow * <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  t += (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] + overflow * <a class="code" href="scalar__4x64__impl_8h.html#a2ba4e9e828bc0a11cf7ffc81cd823509">SECP256K1_N_C_2</a>;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  t += (uint64_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3];</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = t & 0xFFFFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> overflow;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> }</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a83257652850276cd74c7cdd1f9444d9c"> 83</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a83257652850276cd74c7cdd1f9444d9c">secp256k1_scalar_add</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *b) {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">int</span> overflow;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  uint128_t t = (uint128_t)a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] + b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0];</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  t += (uint128_t)a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] + b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1];</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  t += (uint128_t)a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] + b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2];</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  t += (uint128_t)a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] + b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3];</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  overflow = t + <a class="code" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a>(r);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(overflow == 0 || overflow == 1);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a">secp256k1_scalar_reduce</a>(r, overflow);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> overflow;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#ad6596a0249548deb678f0b630204254f"> 99</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#ad6596a0249548deb678f0b630204254f">secp256k1_scalar_cadd_bit</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bit, <span class="keywordtype">int</span> flag) {</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  uint128_t t;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(bit < 256);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  bit += ((uint32_t) flag - 1) & 0x100; <span class="comment">/* forcing (bit >> 6) > 3 makes this a noop */</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  t = (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] + (((uint64_t)((bit >> 6) == 0)) << (bit & 0x3F));</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  t += (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] + (((uint64_t)((bit >> 6) == 1)) << (bit & 0x3F));</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  t += (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] + (((uint64_t)((bit >> 6) == 2)) << (bit & 0x3F));</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  t += (uint128_t)r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] + (((uint64_t)((bit >> 6) == 3)) << (bit & 0x3F));</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = t & 0xFFFFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>((t >> 64) == 0);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a>(r) == 0);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a3d09257862898c77d71d594175c87176"> 117</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a3d09257862898c77d71d594175c87176">secp256k1_scalar_set_b32</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *b32, <span class="keywordtype">int</span> *overflow) {</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">int</span> over;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = (uint64_t)b32[31] | (uint64_t)b32[30] << 8 | (uint64_t)b32[29] << 16 | (uint64_t)b32[28] << 24 | (uint64_t)b32[27] << 32 | (uint64_t)b32[26] << 40 | (uint64_t)b32[25] << 48 | (uint64_t)b32[24] << 56;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = (uint64_t)b32[23] | (uint64_t)b32[22] << 8 | (uint64_t)b32[21] << 16 | (uint64_t)b32[20] << 24 | (uint64_t)b32[19] << 32 | (uint64_t)b32[18] << 40 | (uint64_t)b32[17] << 48 | (uint64_t)b32[16] << 56;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = (uint64_t)b32[15] | (uint64_t)b32[14] << 8 | (uint64_t)b32[13] << 16 | (uint64_t)b32[12] << 24 | (uint64_t)b32[11] << 32 | (uint64_t)b32[10] << 40 | (uint64_t)b32[9] << 48 | (uint64_t)b32[8] << 56;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = (uint64_t)b32[7] | (uint64_t)b32[6] << 8 | (uint64_t)b32[5] << 16 | (uint64_t)b32[4] << 24 | (uint64_t)b32[3] << 32 | (uint64_t)b32[2] << 40 | (uint64_t)b32[1] << 48 | (uint64_t)b32[0] << 56;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  over = <a class="code" href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a">secp256k1_scalar_reduce</a>(r, <a class="code" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a>(r));</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (overflow) {</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  *overflow = over;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> }</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831"> 129</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *bin, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* a) {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  bin[0] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 56; bin[1] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 48; bin[2] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 40; bin[3] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 32; bin[4] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 24; bin[5] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 16; bin[6] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> 8; bin[7] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3];</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  bin[8] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 56; bin[9] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 48; bin[10] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 40; bin[11] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 32; bin[12] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 24; bin[13] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 16; bin[14] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> 8; bin[15] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2];</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  bin[16] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 56; bin[17] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 48; bin[18] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 40; bin[19] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 32; bin[20] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 24; bin[21] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 16; bin[22] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> 8; bin[23] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1];</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  bin[24] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 56; bin[25] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 48; bin[26] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 40; bin[27] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 32; bin[28] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 24; bin[29] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 16; bin[30] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> 8; bin[31] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0];</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#aa4624a2cbcdda046878a2bd26e14707e"> 136</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#aa4624a2cbcdda046878a2bd26e14707e">secp256k1_scalar_is_zero</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]) == 0;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#aa3f1c1d4536adf835ee256878c222968"> 140</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#aa3f1c1d4536adf835ee256878c222968">secp256k1_scalar_negate</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  uint64_t nonzero = 0xFFFFFFFFFFFFFFFFULL * (<a class="code" href="scalar__4x64__impl_8h.html#aa4624a2cbcdda046878a2bd26e14707e">secp256k1_scalar_is_zero</a>(a) == 0);</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  uint128_t t = (uint128_t)(~a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]) + <a class="code" href="scalar__4x64__impl_8h.html#a9e65a0592c11e099de8e8f58b38a14ae">SECP256K1_N_0</a> + 1;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  t += (uint128_t)(~a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]) + <a class="code" href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2">SECP256K1_N_1</a>;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  t += (uint128_t)(~a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]) + <a class="code" href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3">SECP256K1_N_2</a>;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  t += (uint128_t)(~a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]) + <a class="code" href="scalar__4x64__impl_8h.html#a1d38f968c428d48fe1041ef38eec96d4">SECP256K1_N_3</a>;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = t & nonzero;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#ae5f33e28f53abe64bc2fef43870e224c"> 152</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#ae5f33e28f53abe64bc2fef43870e224c">secp256k1_scalar_is_one</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> ((a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] ^ 1) | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] | a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]) == 0;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#aab66620cbbe49bec3c7c02f4a1219c05"> 156</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#aab66620cbbe49bec3c7c02f4a1219c05">secp256k1_scalar_is_high</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">int</span> yes = 0;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">int</span> no = 0;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] < <a class="code" href="scalar__4x64__impl_8h.html#ac658856dbff7e81aca7cdd131c05dde4">SECP256K1_N_H_3</a>);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] > <a class="code" href="scalar__4x64__impl_8h.html#ac658856dbff7e81aca7cdd131c05dde4">SECP256K1_N_H_3</a>) & ~no;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] < <a class="code" href="scalar__4x64__impl_8h.html#a5dfabdaac8359544dd1131ca3af807ae">SECP256K1_N_H_2</a>) & ~yes; <span class="comment">/* No need for a > check. */</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  no |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] < <a class="code" href="scalar__4x64__impl_8h.html#a93c4692d6cad53df3cce3fb4631dee82">SECP256K1_N_H_1</a>) & ~yes;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] > <a class="code" href="scalar__4x64__impl_8h.html#a93c4692d6cad53df3cce3fb4631dee82">SECP256K1_N_H_1</a>) & ~no;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  yes |= (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] > <a class="code" href="scalar__4x64__impl_8h.html#a824415debca677af24eb249946df4404">SECP256K1_N_H_0</a>) & ~no;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> yes;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a854402245668666a879a0394e0ebfe01"> 168</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a854402245668666a879a0394e0ebfe01">secp256k1_scalar_cond_negate</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keywordtype">int</span> flag) {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">/* If we are flag = 0, mask = 00...00 and this is a no-op;</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * if we are flag = 1, mask = 11...11 and this is identical to secp256k1_scalar_negate */</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint64_t mask = !flag - 1;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  uint64_t nonzero = (<a class="code" href="scalar__4x64__impl_8h.html#aa4624a2cbcdda046878a2bd26e14707e">secp256k1_scalar_is_zero</a>(r) != 0) - 1;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  uint128_t t = (uint128_t)(r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] ^ mask) + ((<a class="code" href="scalar__4x64__impl_8h.html#a9e65a0592c11e099de8e8f58b38a14ae">SECP256K1_N_0</a> + 1) & mask);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  t += (uint128_t)(r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] ^ mask) + (<a class="code" href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2">SECP256K1_N_1</a> & mask);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  t += (uint128_t)(r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] ^ mask) + (<a class="code" href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3">SECP256K1_N_2</a> & mask);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = t & nonzero; t >>= 64;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  t += (uint128_t)(r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] ^ mask) + (<a class="code" href="scalar__4x64__impl_8h.html#a1d38f968c428d48fe1041ef38eec96d4">SECP256K1_N_3</a> & mask);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = t & nonzero;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> 2 * (mask == 0) - 1;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> }</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment">/* Inspired by the macros in OpenSSL's crypto/bn/asm/x86_64-gcc.c. */</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730"> 187</a></span> <span class="preprocessor">#define muladd(a,b) { \</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="preprocessor"> uint64_t tl, th; \</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="preprocessor"> uint128_t t = (uint128_t)a * b; \</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="preprocessor"> th = t >> 64; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFE */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor"> tl = t; \</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor"> c0 += tl; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="preprocessor"> th += (c0 < tl) ? 1 : 0; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFF */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="preprocessor"> c1 += th; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor"> c2 += (c1 < th) ? 1 : 0; </span><span class="comment">/* never overflows by contract (verified in the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor"> VERIFY_CHECK((c1 >= th) || (c2 != 0)); \</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00202"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62"> 202</a></span> <span class="preprocessor">#define muladd_fast(a,b) { \</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor"> uint64_t tl, th; \</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor"> uint128_t t = (uint128_t)a * b; \</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"> th = t >> 64; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFE */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"> tl = t; \</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor"> c0 += tl; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="preprocessor"> th += (c0 < tl) ? 1 : 0; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFF */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor"> c1 += th; </span><span class="comment">/* never overflows by contract (verified in the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="preprocessor"> VERIFY_CHECK(c1 >= th); \</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div><div class="line"><a name="l00216"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f"> 216</a></span> <span class="preprocessor">#define muladd2(a,b) { \</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor"> uint64_t tl, th, th2, tl2; \</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="preprocessor"> uint128_t t = (uint128_t)a * b; \</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="preprocessor"> th = t >> 64; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFE */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor"> tl = t; \</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor"> th2 = th + th; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFE (in case th was 0x7FFFFFFFFFFFFFFF) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor"> c2 += (th2 < th) ? 1 : 0; </span><span class="comment">/* never overflows by contract (verified the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor"> VERIFY_CHECK((th2 >= th) || (c2 != 0)); \</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor"> tl2 = tl + tl; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFE (in case the lowest 63 bits of tl were 0x7FFFFFFFFFFFFFFF) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor"> th2 += (tl2 < tl) ? 1 : 0; </span><span class="comment">/* at most 0xFFFFFFFFFFFFFFFF */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="preprocessor"> c0 += tl2; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor"> th2 += (c0 < tl2) ? 1 : 0; </span><span class="comment">/* second overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="preprocessor"> c2 += (c0 < tl2) & (th2 == 0); </span><span class="comment">/* never overflows by contract (verified the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor"> VERIFY_CHECK((c0 >= tl2) || (th2 != 0) || (c2 != 0)); \</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"> c1 += th2; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"> c2 += (c1 < th2) ? 1 : 0; </span><span class="comment">/* never overflows by contract (verified the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"> VERIFY_CHECK((c1 >= th2) || (c2 != 0)); \</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455"> 238</a></span> <span class="preprocessor">#define sumadd(a) { \</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"> unsigned int over; \</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor"> c0 += (a); </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor"> over = (c0 < (a)) ? 1 : 0; \</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="preprocessor"> c1 += over; </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="preprocessor"> c2 += (c1 < over) ? 1 : 0; </span><span class="comment">/* never overflows by contract */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11"> 247</a></span> <span class="preprocessor">#define sumadd_fast(a) { \</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="preprocessor"> c0 += (a); </span><span class="comment">/* overflow is handled on the next line */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor"> c1 += (c0 < (a)) ? 1 : 0; </span><span class="comment">/* never overflows by contract (verified the next line) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="preprocessor"> VERIFY_CHECK((c1 != 0) | (c0 >= (a))); \</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="preprocessor"> VERIFY_CHECK(c2 == 0); \</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00255"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb"> 255</a></span> <span class="preprocessor">#define extract(n) { \</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor"> (n) = c0; \</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="preprocessor"> c0 = c1; \</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="preprocessor"> c1 = c2; \</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="preprocessor"> c2 = 0; \</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00263"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b"> 263</a></span> <span class="preprocessor">#define extract_fast(n) { \</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="preprocessor"> (n) = c0; \</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor"> c0 = c1; \</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="preprocessor"> c1 = 0; \</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="preprocessor"> VERIFY_CHECK(c2 == 0); \</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div><div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a55aeaf87961410d982871d0e5c51ce39"> 270</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a55aeaf87961410d982871d0e5c51ce39">secp256k1_scalar_reduce_512</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> uint64_t *l) {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="preprocessor">#ifdef USE_ASM_X86_64</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">/* Reduce 512 bits into 385. */</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  uint64_t m0, m1, m2, m3, m4, m5, m6;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  uint64_t p0, p1, p2, p3, p4;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  uint64_t c;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  __asm__ __volatile__(</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">/* Preload. */</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="stringliteral">"movq 32(%%rsi), %%r11\n"</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="stringliteral">"movq 40(%%rsi), %%r12\n"</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="stringliteral">"movq 48(%%rsi), %%r13\n"</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="stringliteral">"movq 56(%%rsi), %%r14\n"</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">/* Initialize r8,r9,r10 */</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="stringliteral">"movq 0(%%rsi), %%r8\n"</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="stringliteral">"movq $0, %%r10\n"</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">/* (r8,r9) += n0 * c0 */</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="stringliteral">"movq %8, %%rax\n"</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">/* extract m0 */</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="stringliteral">"movq %%r8, %q0\n"</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="stringliteral">"movq $0, %%r8\n"</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">/* (r9,r10) += l1 */</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="stringliteral">"addq 8(%%rsi), %%r9\n"</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">/* (r9,r10,r8) += n1 * c0 */</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="stringliteral">"movq %8, %%rax\n"</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">/* (r9,r10,r8) += n0 * c1 */</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="stringliteral">"movq %9, %%rax\n"</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">/* extract m1 */</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="stringliteral">"movq %%r9, %q1\n"</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">/* (r10,r8,r9) += l2 */</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="stringliteral">"addq 16(%%rsi), %%r10\n"</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">/* (r10,r8,r9) += n2 * c0 */</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="stringliteral">"movq %8, %%rax\n"</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">/* (r10,r8,r9) += n1 * c1 */</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="stringliteral">"movq %9, %%rax\n"</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">/* (r10,r8,r9) += n0 */</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="stringliteral">"addq %%r11, %%r10\n"</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">/* extract m2 */</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="stringliteral">"movq %%r10, %q2\n"</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="stringliteral">"movq $0, %%r10\n"</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">/* (r8,r9,r10) += l3 */</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="stringliteral">"addq 24(%%rsi), %%r8\n"</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">/* (r8,r9,r10) += n3 * c0 */</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="stringliteral">"movq %8, %%rax\n"</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">/* (r8,r9,r10) += n2 * c1 */</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="stringliteral">"movq %9, %%rax\n"</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="comment">/* (r8,r9,r10) += n1 */</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="stringliteral">"addq %%r12, %%r8\n"</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">/* extract m3 */</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="stringliteral">"movq %%r8, %q3\n"</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="stringliteral">"movq $0, %%r8\n"</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">/* (r9,r10,r8) += n3 * c1 */</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="stringliteral">"movq %9, %%rax\n"</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="comment">/* (r9,r10,r8) += n2 */</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="stringliteral">"addq %%r13, %%r9\n"</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">/* extract m4 */</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="stringliteral">"movq %%r9, %q4\n"</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="comment">/* (r10,r8) += n3 */</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="stringliteral">"addq %%r14, %%r10\n"</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">/* extract m5 */</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="stringliteral">"movq %%r10, %q5\n"</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">/* extract m6 */</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="stringliteral">"movq %%r8, %q6\n"</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  : <span class="stringliteral">"=g"</span>(m0), <span class="stringliteral">"=g"</span>(m1), <span class="stringliteral">"=g"</span>(m2), <span class="stringliteral">"=g"</span>(m3), <span class="stringliteral">"=g"</span>(m4), <span class="stringliteral">"=g"</span>(m5), <span class="stringliteral">"=g"</span>(m6)</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  : <span class="stringliteral">"S"</span>(l), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>)</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  : <span class="stringliteral">"rax"</span>, <span class="stringliteral">"rdx"</span>, <span class="stringliteral">"r8"</span>, <span class="stringliteral">"r9"</span>, <span class="stringliteral">"r10"</span>, <span class="stringliteral">"r11"</span>, <span class="stringliteral">"r12"</span>, <span class="stringliteral">"r13"</span>, <span class="stringliteral">"r14"</span>, <span class="stringliteral">"cc"</span>);</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">/* Reduce 385 bits into 258. */</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  __asm__ __volatile__(</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="comment">/* Preload */</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="stringliteral">"movq %q9, %%r11\n"</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="stringliteral">"movq %q10, %%r12\n"</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="stringliteral">"movq %q11, %%r13\n"</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">/* Initialize (r8,r9,r10) */</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="stringliteral">"movq %q5, %%r8\n"</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="stringliteral">"movq $0, %%r10\n"</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">/* (r8,r9) += m4 * c0 */</span></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="stringliteral">"movq %12, %%rax\n"</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">/* extract p0 */</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="stringliteral">"movq %%r8, %q0\n"</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="stringliteral">"movq $0, %%r8\n"</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="comment">/* (r9,r10) += m1 */</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="stringliteral">"addq %q6, %%r9\n"</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">/* (r9,r10,r8) += m5 * c0 */</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="stringliteral">"movq %12, %%rax\n"</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">/* (r9,r10,r8) += m4 * c1 */</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="stringliteral">"movq %13, %%rax\n"</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">/* extract p1 */</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="stringliteral">"movq %%r9, %q1\n"</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">/* (r10,r8,r9) += m2 */</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="stringliteral">"addq %q7, %%r10\n"</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="comment">/* (r10,r8,r9) += m6 * c0 */</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="stringliteral">"movq %12, %%rax\n"</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">/* (r10,r8,r9) += m5 * c1 */</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="stringliteral">"movq %13, %%rax\n"</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="comment">/* (r10,r8,r9) += m4 */</span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="stringliteral">"addq %%r11, %%r10\n"</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">/* extract p2 */</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="stringliteral">"movq %%r10, %q2\n"</span></div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">/* (r8,r9) += m3 */</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="stringliteral">"addq %q8, %%r8\n"</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="comment">/* (r8,r9) += m6 * c1 */</span></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="stringliteral">"movq %13, %%rax\n"</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">/* (r8,r9) += m5 */</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="stringliteral">"addq %%r12, %%r8\n"</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">/* extract p3 */</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="stringliteral">"movq %%r8, %q3\n"</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">/* (r9) += m6 */</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="stringliteral">"addq %%r13, %%r9\n"</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">/* extract p4 */</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="stringliteral">"movq %%r9, %q4\n"</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  : <span class="stringliteral">"=&g"</span>(p0), <span class="stringliteral">"=&g"</span>(p1), <span class="stringliteral">"=&g"</span>(p2), <span class="stringliteral">"=g"</span>(p3), <span class="stringliteral">"=g"</span>(p4)</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  : <span class="stringliteral">"g"</span>(m0), <span class="stringliteral">"g"</span>(m1), <span class="stringliteral">"g"</span>(m2), <span class="stringliteral">"g"</span>(m3), <span class="stringliteral">"g"</span>(m4), <span class="stringliteral">"g"</span>(m5), <span class="stringliteral">"g"</span>(m6), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>)</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  : <span class="stringliteral">"rax"</span>, <span class="stringliteral">"rdx"</span>, <span class="stringliteral">"r8"</span>, <span class="stringliteral">"r9"</span>, <span class="stringliteral">"r10"</span>, <span class="stringliteral">"r11"</span>, <span class="stringliteral">"r12"</span>, <span class="stringliteral">"r13"</span>, <span class="stringliteral">"cc"</span>);</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="comment">/* Reduce 258 bits into 256. */</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  __asm__ __volatile__(</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="comment">/* Preload */</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="stringliteral">"movq %q5, %%r10\n"</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="comment">/* (rax,rdx) = p4 * c0 */</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="stringliteral">"movq %7, %%rax\n"</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="stringliteral">"mulq %%r10\n"</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">/* (rax,rdx) += p0 */</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="stringliteral">"addq %q1, %%rax\n"</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="stringliteral">"adcq $0, %%rdx\n"</span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="comment">/* extract r0 */</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="stringliteral">"movq %%rax, 0(%q6)\n"</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="comment">/* Move to (r8,r9) */</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="stringliteral">"movq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">/* (r8,r9) += p1 */</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="stringliteral">"addq %q2, %%r8\n"</span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="comment">/* (r8,r9) += p4 * c1 */</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="stringliteral">"movq %8, %%rax\n"</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="stringliteral">"mulq %%r10\n"</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="comment">/* Extract r1 */</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="stringliteral">"movq %%r8, 8(%q6)\n"</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="stringliteral">"movq $0, %%r8\n"</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="comment">/* (r9,r8) += p4 */</span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="stringliteral">"addq %%r10, %%r9\n"</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="comment">/* (r9,r8) += p2 */</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="stringliteral">"addq %q3, %%r9\n"</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="comment">/* Extract r2 */</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="stringliteral">"movq %%r9, 16(%q6)\n"</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="stringliteral">"movq $0, %%r9\n"</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="comment">/* (r8,r9) += p3 */</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="stringliteral">"addq %q4, %%r8\n"</span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="comment">/* Extract r3 */</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="stringliteral">"movq %%r8, 24(%q6)\n"</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="comment">/* Extract c */</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="stringliteral">"movq %%r9, %q0\n"</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  : <span class="stringliteral">"=g"</span>(c)</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  : <span class="stringliteral">"g"</span>(p0), <span class="stringliteral">"g"</span>(p1), <span class="stringliteral">"g"</span>(p2), <span class="stringliteral">"g"</span>(p3), <span class="stringliteral">"g"</span>(p4), <span class="stringliteral">"D"</span>(r), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>), <span class="stringliteral">"n"</span>(<a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>)</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  : <span class="stringliteral">"rax"</span>, <span class="stringliteral">"rdx"</span>, <span class="stringliteral">"r8"</span>, <span class="stringliteral">"r9"</span>, <span class="stringliteral">"r10"</span>, <span class="stringliteral">"cc"</span>, <span class="stringliteral">"memory"</span>);</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  uint128_t c;</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  uint64_t c0, c1, c2;</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  uint64_t n0 = l[4], n1 = l[5], n2 = l[6], n3 = l[7];</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  uint64_t m0, m1, m2, m3, m4, m5;</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  uint32_t m6;</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  uint64_t p0, p1, p2, p3;</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  uint32_t p4;</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="comment">/* Reduce 512 bits into 385. */</span></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="comment">/* m[0..6] = l[0..3] + n[0..3] * SECP256K1_N_C. */</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  c0 = l[0]; c1 = 0; c2 = 0;</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(n0, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(m0);</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <a class="code" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a>(l[1]);</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n1, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n0, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(m1);</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(l[2]);</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n2, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n1, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(n0);</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(m2);</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(l[3]);</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n3, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n2, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(n1);</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(m3);</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(n3, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(n2);</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(m4);</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <a class="code" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a>(n3);</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(m5);</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(c0 <= 1);</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  m6 = c0;</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="comment">/* Reduce 385 bits into 258. */</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="comment">/* p[0..4] = m[0..3] + m[4..6] * SECP256K1_N_C. */</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  c0 = m0; c1 = 0; c2 = 0;</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(m4, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(p0);</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <a class="code" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a>(m1);</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(m5, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(m4, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(p1);</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(m2);</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(m6, <a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a>);</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(m5, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <a class="code" href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a>(m4);</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(p2);</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a>(m3);</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(m6, <a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a>);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <a class="code" href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a>(m5);</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(p3);</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  p4 = c0 + m6;</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(p4 <= 2);</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> </div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="comment">/* Reduce 258 bits into 256. */</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="comment">/* r[0..3] = p[0..3] + p[4] * SECP256K1_N_C. */</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  c = p0 + (uint128_t)<a class="code" href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a> * p4;</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = c & 0xFFFFFFFFFFFFFFFFULL; c >>= 64;</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  c += p1 + (uint128_t)<a class="code" href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a> * p4;</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = c & 0xFFFFFFFFFFFFFFFFULL; c >>= 64;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  c += p2 + (uint128_t)p4;</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = c & 0xFFFFFFFFFFFFFFFFULL; c >>= 64;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  c += p3;</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = c & 0xFFFFFFFFFFFFFFFFULL; c >>= 64;</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="comment">/* Final reduction of r. */</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <a class="code" href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a">secp256k1_scalar_reduce</a>(r, c + <a class="code" href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a>(r));</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> }</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div><div class="line"><a name="l00579"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a6c4d257b4b9ccbf31b32a134ebc25854"> 579</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a6c4d257b4b9ccbf31b32a134ebc25854">secp256k1_scalar_mul_512</a>(uint64_t l[8], <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *b) {</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="preprocessor">#ifdef USE_ASM_X86_64</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keyword">const</span> uint64_t *pb = b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>;</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  __asm__ __volatile__(</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="comment">/* Preload */</span></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="stringliteral">"movq 0(%%rdi), %%r15\n"</span></div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="stringliteral">"movq 8(%%rdi), %%rbx\n"</span></div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="stringliteral">"movq 16(%%rdi), %%rcx\n"</span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="stringliteral">"movq 0(%%rdx), %%r11\n"</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="stringliteral">"movq 8(%%rdx), %%r12\n"</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="stringliteral">"movq 16(%%rdx), %%r13\n"</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="stringliteral">"movq 24(%%rdx), %%r14\n"</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="comment">/* (rax,rdx) = a0 * b0 */</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="comment">/* Extract l0 */</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="stringliteral">"movq %%rax, 0(%%rsi)\n"</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="comment">/* (r8,r9,r10) = (rdx) */</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="stringliteral">"movq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="stringliteral">"xorq %%r9, %%r9\n"</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="stringliteral">"xorq %%r10, %%r10\n"</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="comment">/* (r8,r9,r10) += a0 * b1 */</span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="comment">/* (r8,r9,r10) += a1 * b0 */</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="stringliteral">"movq %%rbx, %%rax\n"</span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="comment">/* Extract l1 */</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="stringliteral">"movq %%r8, 8(%%rsi)\n"</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <span class="stringliteral">"xorq %%r8, %%r8\n"</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="comment">/* (r9,r10,r8) += a0 * b2 */</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="comment">/* (r9,r10,r8) += a1 * b1 */</span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="stringliteral">"movq %%rbx, %%rax\n"</span></div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="comment">/* (r9,r10,r8) += a2 * b0 */</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="stringliteral">"movq %%rcx, %%rax\n"</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="comment">/* Extract l2 */</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="stringliteral">"movq %%r9, 16(%%rsi)\n"</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="stringliteral">"xorq %%r9, %%r9\n"</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">/* (r10,r8,r9) += a0 * b3 */</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="comment">/* Preload a3 */</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="stringliteral">"movq 24(%%rdi), %%r15\n"</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="comment">/* (r10,r8,r9) += a1 * b2 */</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="stringliteral">"movq %%rbx, %%rax\n"</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">/* (r10,r8,r9) += a2 * b1 */</span></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="stringliteral">"movq %%rcx, %%rax\n"</span></div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="comment">/* (r10,r8,r9) += a3 * b0 */</span></div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="comment">/* Extract l3 */</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="stringliteral">"movq %%r10, 24(%%rsi)\n"</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="stringliteral">"xorq %%r10, %%r10\n"</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="comment">/* (r8,r9,r10) += a1 * b3 */</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="stringliteral">"movq %%rbx, %%rax\n"</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="comment">/* (r8,r9,r10) += a2 * b2 */</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="stringliteral">"movq %%rcx, %%rax\n"</span></div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="comment">/* (r8,r9,r10) += a3 * b1 */</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="comment">/* Extract l4 */</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  <span class="stringliteral">"movq %%r8, 32(%%rsi)\n"</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="stringliteral">"xorq %%r8, %%r8\n"</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="comment">/* (r9,r10,r8) += a2 * b3 */</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="stringliteral">"movq %%rcx, %%rax\n"</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="comment">/* (r9,r10,r8) += a3 * b2 */</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="comment">/* Extract l5 */</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="stringliteral">"movq %%r9, 40(%%rsi)\n"</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="comment">/* (r10,r8) += a3 * b3 */</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="stringliteral">"movq %%r15, %%rax\n"</span></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="comment">/* Extract l6 */</span></div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="stringliteral">"movq %%r10, 48(%%rsi)\n"</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="comment">/* Extract l7 */</span></div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="stringliteral">"movq %%r8, 56(%%rsi)\n"</span></div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  : <span class="stringliteral">"+d"</span>(pb)</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  : <span class="stringliteral">"S"</span>(l), <span class="stringliteral">"D"</span>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>)</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  : <span class="stringliteral">"rax"</span>, <span class="stringliteral">"rbx"</span>, <span class="stringliteral">"rcx"</span>, <span class="stringliteral">"r8"</span>, <span class="stringliteral">"r9"</span>, <span class="stringliteral">"r10"</span>, <span class="stringliteral">"r11"</span>, <span class="stringliteral">"r12"</span>, <span class="stringliteral">"r13"</span>, <span class="stringliteral">"r14"</span>, <span class="stringliteral">"r15"</span>, <span class="stringliteral">"cc"</span>, <span class="stringliteral">"memory"</span>);</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <span class="comment">/* 160 bit accumulator. */</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  uint64_t c0 = 0, c1 = 0;</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  uint32_t c2 = 0;</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span> </div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="comment">/* l[0..7] = a[0..3] * b[0..3]. */</span></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]);</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(l[0]);</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]);</div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[1]);</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]);</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[2]);</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]);</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[3]);</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[4]);</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[5]);</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3], b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(l[6]);</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(c1 == 0);</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  l[7] = c0;</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span> }</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span> </div><div class="line"><a name="l00746"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a2897d4ce96586b8dadad9ae4eb34abf8"> 746</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a2897d4ce96586b8dadad9ae4eb34abf8">secp256k1_scalar_sqr_512</a>(uint64_t l[8], <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span> <span class="preprocessor">#ifdef USE_ASM_X86_64</span></div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  __asm__ __volatile__(</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <span class="comment">/* Preload */</span></div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="stringliteral">"movq 0(%%rdi), %%r11\n"</span></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="stringliteral">"movq 8(%%rdi), %%r12\n"</span></div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <span class="stringliteral">"movq 16(%%rdi), %%r13\n"</span></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="stringliteral">"movq 24(%%rdi), %%r14\n"</span></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="comment">/* (rax,rdx) = a0 * a0 */</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="stringliteral">"movq %%r11, %%rax\n"</span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="stringliteral">"mulq %%r11\n"</span></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="comment">/* Extract l0 */</span></div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  <span class="stringliteral">"movq %%rax, 0(%%rsi)\n"</span></div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="comment">/* (r8,r9,r10) = (rdx,0) */</span></div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="stringliteral">"movq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="stringliteral">"xorq %%r9, %%r9\n"</span></div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="stringliteral">"xorq %%r10, %%r10\n"</span></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="comment">/* (r8,r9,r10) += 2 * a0 * a1 */</span></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="stringliteral">"movq %%r11, %%rax\n"</span></div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="comment">/* Extract l1 */</span></div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="stringliteral">"movq %%r8, 8(%%rsi)\n"</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="stringliteral">"xorq %%r8, %%r8\n"</span></div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="comment">/* (r9,r10,r8) += 2 * a0 * a2 */</span></div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="stringliteral">"movq %%r11, %%rax\n"</span></div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="comment">/* (r9,r10,r8) += a1 * a1 */</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="stringliteral">"movq %%r12, %%rax\n"</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="stringliteral">"mulq %%r12\n"</span></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="comment">/* Extract l2 */</span></div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="stringliteral">"movq %%r9, 16(%%rsi)\n"</span></div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="stringliteral">"xorq %%r9, %%r9\n"</span></div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="comment">/* (r10,r8,r9) += 2 * a0 * a3 */</span></div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  <span class="stringliteral">"movq %%r11, %%rax\n"</span></div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="comment">/* (r10,r8,r9) += 2 * a1 * a2 */</span></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="stringliteral">"movq %%r12, %%rax\n"</span></div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="stringliteral">"adcq $0, %%r9\n"</span></div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="comment">/* Extract l3 */</span></div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="stringliteral">"movq %%r10, 24(%%rsi)\n"</span></div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="stringliteral">"xorq %%r10, %%r10\n"</span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <span class="comment">/* (r8,r9,r10) += 2 * a1 * a3 */</span></div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="stringliteral">"movq %%r12, %%rax\n"</span></div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="comment">/* (r8,r9,r10) += a2 * a2 */</span></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="stringliteral">"movq %%r13, %%rax\n"</span></div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="stringliteral">"mulq %%r13\n"</span></div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="stringliteral">"addq %%rax, %%r8\n"</span></div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="stringliteral">"adcq %%rdx, %%r9\n"</span></div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="stringliteral">"adcq $0, %%r10\n"</span></div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="comment">/* Extract l4 */</span></div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="stringliteral">"movq %%r8, 32(%%rsi)\n"</span></div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="stringliteral">"xorq %%r8, %%r8\n"</span></div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="comment">/* (r9,r10,r8) += 2 * a2 * a3 */</span></div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <span class="stringliteral">"movq %%r13, %%rax\n"</span></div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="stringliteral">"addq %%rax, %%r9\n"</span></div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="stringliteral">"adcq %%rdx, %%r10\n"</span></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="stringliteral">"adcq $0, %%r8\n"</span></div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <span class="comment">/* Extract l5 */</span></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  <span class="stringliteral">"movq %%r9, 40(%%rsi)\n"</span></div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="comment">/* (r10,r8) += a3 * a3 */</span></div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="stringliteral">"movq %%r14, %%rax\n"</span></div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="stringliteral">"mulq %%r14\n"</span></div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <span class="stringliteral">"addq %%rax, %%r10\n"</span></div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  <span class="stringliteral">"adcq %%rdx, %%r8\n"</span></div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">/* Extract l6 */</span></div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="stringliteral">"movq %%r10, 48(%%rsi)\n"</span></div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  <span class="comment">/* Extract l7 */</span></div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="stringliteral">"movq %%r8, 56(%%rsi)\n"</span></div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  :</div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  : <span class="stringliteral">"S"</span>(l), <span class="stringliteral">"D"</span>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>)</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  : <span class="stringliteral">"rax"</span>, <span class="stringliteral">"rdx"</span>, <span class="stringliteral">"r8"</span>, <span class="stringliteral">"r9"</span>, <span class="stringliteral">"r10"</span>, <span class="stringliteral">"r11"</span>, <span class="stringliteral">"r12"</span>, <span class="stringliteral">"r13"</span>, <span class="stringliteral">"r14"</span>, <span class="stringliteral">"cc"</span>, <span class="stringliteral">"memory"</span>);</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="comment">/* 160 bit accumulator. */</span></div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  uint64_t c0 = 0, c1 = 0;</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  uint32_t c2 = 0;</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  <span class="comment">/* l[0..7] = a[0..3] * b[0..3]. */</span></div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]);</div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(l[0]);</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[1]);</div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]);</div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[2]);</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[3]);</div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]);</div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[4]);</div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  <a class="code" href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a>(l[5]);</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <a class="code" href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a>(a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3], a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3]);</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <a class="code" href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a>(l[6]);</div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(c1 == 0);</div><div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  l[7] = c0;</div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span> }</div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span> </div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span> <span class="preprocessor">#undef sumadd</span></div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span> <span class="preprocessor">#undef sumadd_fast</span></div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span> <span class="preprocessor">#undef muladd</span></div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span> <span class="preprocessor">#undef muladd_fast</span></div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span> <span class="preprocessor">#undef muladd2</span></div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span> <span class="preprocessor">#undef extract</span></div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span> <span class="preprocessor">#undef extract_fast</span></div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span> </div><div class="line"><a name="l00891"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a89db15f705c8eafcd10c08181523acd0"> 891</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a89db15f705c8eafcd10c08181523acd0">secp256k1_scalar_mul</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *b) {</div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  uint64_t l[8];</div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <a class="code" href="scalar__4x64__impl_8h.html#a6c4d257b4b9ccbf31b32a134ebc25854">secp256k1_scalar_mul_512</a>(l, a, b);</div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <a class="code" href="scalar__4x64__impl_8h.html#a55aeaf87961410d982871d0e5c51ce39">secp256k1_scalar_reduce_512</a>(r, l);</div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span> }</div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span> </div><div class="line"><a name="l00897"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#ae9fcdf1db22cb93c2a2f06b0a9c957d3"> 897</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#ae9fcdf1db22cb93c2a2f06b0a9c957d3">secp256k1_scalar_shr_int</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keywordtype">int</span> <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>) {</div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  <span class="keywordtype">int</span> ret;</div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a> > 0);</div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a> < 16);</div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  ret = r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] & ((1 << <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>) - 1);</div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] >> <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>) + (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] << (64 - <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>));</div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] >> <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>) + (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] << (64 - <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>));</div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] >> <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>) + (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] << (64 - <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>));</div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = (r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] >> <a class="code" href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">n</a>);</div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span> }</div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span> </div><div class="line"><a name="l00909"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a2e65618baa17c59e89149a9f7e632f69"> 909</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a2e65618baa17c59e89149a9f7e632f69">secp256k1_scalar_sqr</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  uint64_t l[8];</div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <a class="code" href="scalar__4x64__impl_8h.html#a2897d4ce96586b8dadad9ae4eb34abf8">secp256k1_scalar_sqr_512</a>(l, a);</div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <a class="code" href="scalar__4x64__impl_8h.html#a55aeaf87961410d982871d0e5c51ce39">secp256k1_scalar_reduce_512</a>(r, l);</div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span> }</div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span> </div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span> <span class="preprocessor">#ifdef USE_ENDOMORPHISM</span></div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span> <span class="keyword">static</span> <span class="keywordtype">void</span> secp256k1_scalar_split_128(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r1, <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r2, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a) {</div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  r1-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0];</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  r1-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1];</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  r1-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = 0;</div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  r1-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = 0;</div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  r2-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2];</div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  r2-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3];</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  r2-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = 0;</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  r2-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = 0;</div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span> }</div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span> </div><div class="line"><a name="l00928"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a82b458aab9138b7111490eae6cec6404"> 928</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="scalar__4x64__impl_8h.html#a82b458aab9138b7111490eae6cec6404">secp256k1_scalar_eq</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *b) {</div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  <span class="keywordflow">return</span> ((a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] ^ b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0]) | (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] ^ b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1]) | (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] ^ b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2]) | (a-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] ^ b-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3])) == 0;</div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span> }</div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span> </div><div class="line"><a name="l00932"></a><span class="lineno"><a class="line" href="scalar__4x64__impl_8h.html#a1867b2a6504ecb951d95f14e032bfa38"> 932</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="scalar__4x64__impl_8h.html#a1867b2a6504ecb951d95f14e032bfa38">secp256k1_scalar_mul_shift_var</a>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *b, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> shift) {</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  uint64_t l[8];</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> shiftlimbs;</div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> shiftlow;</div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> shifthigh;</div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(shift >= 256);</div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <a class="code" href="scalar__4x64__impl_8h.html#a6c4d257b4b9ccbf31b32a134ebc25854">secp256k1_scalar_mul_512</a>(l, a, b);</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  shiftlimbs = shift >> 6;</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  shiftlow = shift & 0x3F;</div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  shifthigh = 64 - shiftlow;</div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[0] = shift < 512 ? (l[0 + shiftlimbs] >> shiftlow | (shift < 448 && shiftlow ? (l[1 + shiftlimbs] << shifthigh) : 0)) : 0;</div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[1] = shift < 448 ? (l[1 + shiftlimbs] >> shiftlow | (shift < 384 && shiftlow ? (l[2 + shiftlimbs] << shifthigh) : 0)) : 0;</div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[2] = shift < 384 ? (l[2 + shiftlimbs] >> shiftlow | (shift < 320 && shiftlow ? (l[3 + shiftlimbs] << shifthigh) : 0)) : 0;</div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  r-><a class="code" href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">d</a>[3] = shift < 320 ? (l[3 + shiftlimbs] >> shiftlow) : 0;</div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  <a class="code" href="scalar__4x64__impl_8h.html#ad6596a0249548deb678f0b630204254f">secp256k1_scalar_cadd_bit</a>(r, 0, (l[(shift - 1) >> 6] >> ((shift - 1) & 0x3f)) & 1);</div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span> }</div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span> </div><div class="line"><a name="l00949"></a><span class="lineno"> 949</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="secp256k1_2src_2util_8h_html_aca8ac5ae73fd966db106de59160a178b"><div class="ttname"><a href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a></div><div class="ttdeci">#define VERIFY_CHECK(cond)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2util_8h_source.html#l00064">util.h:64</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a13e982915006b138de5e2b3ab68238cb"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a13e982915006b138de5e2b3ab68238cb">secp256k1_scalar_check_overflow</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_scalar_check_overflow(const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00057">scalar_4x64_impl.h:57</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a93c4692d6cad53df3cce3fb4631dee82"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a93c4692d6cad53df3cce3fb4631dee82">SECP256K1_N_H_1</a></div><div class="ttdeci">#define SECP256K1_N_H_1</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00023">scalar_4x64_impl.h:23</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a7738483bf87a265b882763603d527b3b"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a7738483bf87a265b882763603d527b3b">extract_fast</a></div><div class="ttdeci">#define extract_fast(n)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00263">scalar_4x64_impl.h:263</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_aa4624a2cbcdda046878a2bd26e14707e"><div class="ttname"><a href="scalar__4x64__impl_8h.html#aa4624a2cbcdda046878a2bd26e14707e">secp256k1_scalar_is_zero</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_scalar_is_zero(const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00136">scalar_4x64_impl.h:136</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a5cfbef70d2cba970443032a43450d0b3"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a5cfbef70d2cba970443032a43450d0b3">SECP256K1_N_2</a></div><div class="ttdeci">#define SECP256K1_N_2</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00013">scalar_4x64_impl.h:13</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a6c4d257b4b9ccbf31b32a134ebc25854"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a6c4d257b4b9ccbf31b32a134ebc25854">secp256k1_scalar_mul_512</a></div><div class="ttdeci">static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, const secp256k1_scalar *b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00579">scalar_4x64_impl.h:579</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a6b16ea07b106f63ec6581124e1e6d75e"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a6b16ea07b106f63ec6581124e1e6d75e">secp256k1_scalar_set_int</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00034">scalar_4x64_impl.h:34</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a833c2f6d148537ff7aac34a668c9a455"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a833c2f6d148537ff7aac34a668c9a455">sumadd</a></div><div class="ttdeci">#define sumadd(a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00238">scalar_4x64_impl.h:238</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a2897d4ce96586b8dadad9ae4eb34abf8"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a2897d4ce96586b8dadad9ae4eb34abf8">secp256k1_scalar_sqr_512</a></div><div class="ttdeci">static void secp256k1_scalar_sqr_512(uint64_t l[8], const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00746">scalar_4x64_impl.h:746</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a3f8f9c444183fbe3da955925b585290c"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a3f8f9c444183fbe3da955925b585290c">SECP256K1_N_C_1</a></div><div class="ttdeci">#define SECP256K1_N_C_1</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00018">scalar_4x64_impl.h:18</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a4f682f5ec94e74581289057925976d11"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a4f682f5ec94e74581289057925976d11">sumadd_fast</a></div><div class="ttdeci">#define sumadd_fast(a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00247">scalar_4x64_impl.h:247</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a9c0be4f482ea60d36c15ac4ab010ab4a"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a9c0be4f482ea60d36c15ac4ab010ab4a">secp256k1_scalar_reduce</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_scalar_reduce(secp256k1_scalar *r, unsigned int overflow)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00069">scalar_4x64_impl.h:69</a></div></div>
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<div class="ttc" id="namespacefix-copyright-headers_html_aed10e06fbf20b2e50f73ff2d61f59e45"><div class="ttname"><a href="namespacefix-copyright-headers.html#aed10e06fbf20b2e50f73ff2d61f59e45">fix-copyright-headers.n</a></div><div class="ttdeci">int n</div><div class="ttdef"><b>Definition:</b> <a href="fix-copyright-headers_8py_source.html#l00046">fix-copyright-headers.py:46</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_ab04554d2542b54bc5acd443ab9eb99a1"><div class="ttname"><a href="scalar__4x64__impl_8h.html#ab04554d2542b54bc5acd443ab9eb99a1">secp256k1_scalar_get_bits</a></div><div class="ttdeci">static SECP256K1_INLINE unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00041">scalar_4x64_impl.h:41</a></div></div>
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<div class="ttc" id="secp256k1_8h_html_a7ddc487fd46aee88f21cabedb7268b1e"><div class="ttname"><a href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a></div><div class="ttdeci">#define SECP256K1_INLINE</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8h_source.html#l00116">secp256k1.h:116</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a55aeaf87961410d982871d0e5c51ce39"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a55aeaf87961410d982871d0e5c51ce39">secp256k1_scalar_reduce_512</a></div><div class="ttdeci">static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00270">scalar_4x64_impl.h:270</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_ad6596a0249548deb678f0b630204254f"><div class="ttname"><a href="scalar__4x64__impl_8h.html#ad6596a0249548deb678f0b630204254f">secp256k1_scalar_cadd_bit</a></div><div class="ttdeci">static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00099">scalar_4x64_impl.h:99</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a2381b5d7e18f94758064a32fbf5d54bb"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a2381b5d7e18f94758064a32fbf5d54bb">secp256k1_scalar_clear</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_scalar_clear(secp256k1_scalar *r)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00027">scalar_4x64_impl.h:27</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a2e65618baa17c59e89149a9f7e632f69"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a2e65618baa17c59e89149a9f7e632f69">secp256k1_scalar_sqr</a></div><div class="ttdeci">static void secp256k1_scalar_sqr(secp256k1_scalar *r, const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00909">scalar_4x64_impl.h:909</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a53cc412ecd7e47061b65c0ff5c6db4e2"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a53cc412ecd7e47061b65c0ff5c6db4e2">SECP256K1_N_1</a></div><div class="ttdeci">#define SECP256K1_N_1</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00012">scalar_4x64_impl.h:12</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a854402245668666a879a0394e0ebfe01"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a854402245668666a879a0394e0ebfe01">secp256k1_scalar_cond_negate</a></div><div class="ttdeci">static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00168">scalar_4x64_impl.h:168</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a824415debca677af24eb249946df4404"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a824415debca677af24eb249946df4404">SECP256K1_N_H_0</a></div><div class="ttdeci">#define SECP256K1_N_H_0</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00022">scalar_4x64_impl.h:22</a></div></div>
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<div class="ttc" id="structsecp256k1__scalar_html"><div class="ttname"><a href="structsecp256k1__scalar.html">secp256k1_scalar</a></div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64_8h_source.html#l00013">scalar_4x64.h:13</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a2ba4e9e828bc0a11cf7ffc81cd823509"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a2ba4e9e828bc0a11cf7ffc81cd823509">SECP256K1_N_C_2</a></div><div class="ttdeci">#define SECP256K1_N_C_2</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00019">scalar_4x64_impl.h:19</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_ae9fcdf1db22cb93c2a2f06b0a9c957d3"><div class="ttname"><a href="scalar__4x64__impl_8h.html#ae9fcdf1db22cb93c2a2f06b0a9c957d3">secp256k1_scalar_shr_int</a></div><div class="ttdeci">static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00897">scalar_4x64_impl.h:897</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a3d09257862898c77d71d594175c87176"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a3d09257862898c77d71d594175c87176">secp256k1_scalar_set_b32</a></div><div class="ttdeci">static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00117">scalar_4x64_impl.h:117</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a5dfabdaac8359544dd1131ca3af807ae"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a5dfabdaac8359544dd1131ca3af807ae">SECP256K1_N_H_2</a></div><div class="ttdeci">#define SECP256K1_N_H_2</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00024">scalar_4x64_impl.h:24</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a82b458aab9138b7111490eae6cec6404"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a82b458aab9138b7111490eae6cec6404">secp256k1_scalar_eq</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00928">scalar_4x64_impl.h:928</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a2384e06d62f7580d7599d3b77b68acbb"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a2384e06d62f7580d7599d3b77b68acbb">extract</a></div><div class="ttdeci">#define extract(n)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00255">scalar_4x64_impl.h:255</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a838fb18f65d05d5d8e5ea9f0584af83f"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a838fb18f65d05d5d8e5ea9f0584af83f">muladd2</a></div><div class="ttdeci">#define muladd2(a, b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00216">scalar_4x64_impl.h:216</a></div></div>
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<div class="ttc" id="structsecp256k1__scalar_html_a4aba1d263d205acdd537ed9a995393cd"><div class="ttname"><a href="structsecp256k1__scalar.html#a4aba1d263d205acdd537ed9a995393cd">secp256k1_scalar::d</a></div><div class="ttdeci">uint64_t d[4]</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64_8h_source.html#l00014">scalar_4x64.h:14</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_ae5f33e28f53abe64bc2fef43870e224c"><div class="ttname"><a href="scalar__4x64__impl_8h.html#ae5f33e28f53abe64bc2fef43870e224c">secp256k1_scalar_is_one</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_scalar_is_one(const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00152">scalar_4x64_impl.h:152</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_adeb6e766b53f39bb9c0c9f6502aa3b62"><div class="ttname"><a href="scalar__4x64__impl_8h.html#adeb6e766b53f39bb9c0c9f6502aa3b62">muladd_fast</a></div><div class="ttdeci">#define muladd_fast(a, b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00202">scalar_4x64_impl.h:202</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a7c03352e405b1d65f6afd0b7a0f01730"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a7c03352e405b1d65f6afd0b7a0f01730">muladd</a></div><div class="ttdeci">#define muladd(a, b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00187">scalar_4x64_impl.h:187</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a89db15f705c8eafcd10c08181523acd0"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a89db15f705c8eafcd10c08181523acd0">secp256k1_scalar_mul</a></div><div class="ttdeci">static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00891">scalar_4x64_impl.h:891</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_ac658856dbff7e81aca7cdd131c05dde4"><div class="ttname"><a href="scalar__4x64__impl_8h.html#ac658856dbff7e81aca7cdd131c05dde4">SECP256K1_N_H_3</a></div><div class="ttdeci">#define SECP256K1_N_H_3</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00025">scalar_4x64_impl.h:25</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a1867b2a6504ecb951d95f14e032bfa38"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a1867b2a6504ecb951d95f14e032bfa38">secp256k1_scalar_mul_shift_var</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b, unsigned int shift)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00932">scalar_4x64_impl.h:932</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_aab66620cbbe49bec3c7c02f4a1219c05"><div class="ttname"><a href="scalar__4x64__impl_8h.html#aab66620cbbe49bec3c7c02f4a1219c05">secp256k1_scalar_is_high</a></div><div class="ttdeci">static int secp256k1_scalar_is_high(const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00156">scalar_4x64_impl.h:156</a></div></div>
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<div class="ttc" id="tests_8c_html_ad43c3812e6d13e0518d9f8b8f463ffcf"><div class="ttname"><a href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a></div><div class="ttdeci">static int count</div><div class="ttdef"><b>Definition:</b> <a href="tests_8c_source.html#l00041">tests.c:41</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a83257652850276cd74c7cdd1f9444d9c"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a83257652850276cd74c7cdd1f9444d9c">secp256k1_scalar_add</a></div><div class="ttdeci">static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00083">scalar_4x64_impl.h:83</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a4fa08f8af5a23f505b44c9ef1bec1831"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a></div><div class="ttdeci">static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00129">scalar_4x64_impl.h:129</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a1d38f968c428d48fe1041ef38eec96d4"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a1d38f968c428d48fe1041ef38eec96d4">SECP256K1_N_3</a></div><div class="ttdeci">#define SECP256K1_N_3</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00014">scalar_4x64_impl.h:14</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a9e65a0592c11e099de8e8f58b38a14ae"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a9e65a0592c11e099de8e8f58b38a14ae">SECP256K1_N_0</a></div><div class="ttdeci">#define SECP256K1_N_0</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00011">scalar_4x64_impl.h:11</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a1f879094999b165babd24ee1f8ab0346"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a1f879094999b165babd24ee1f8ab0346">secp256k1_scalar_get_bits_var</a></div><div class="ttdeci">static SECP256K1_INLINE unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00046">scalar_4x64_impl.h:46</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_aa3f1c1d4536adf835ee256878c222968"><div class="ttname"><a href="scalar__4x64__impl_8h.html#aa3f1c1d4536adf835ee256878c222968">secp256k1_scalar_negate</a></div><div class="ttdeci">static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a)</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00140">scalar_4x64_impl.h:140</a></div></div>
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<div class="ttc" id="scalar__4x64__impl_8h_html_a7004f2007d2a43820488d377d7167ece"><div class="ttname"><a href="scalar__4x64__impl_8h.html#a7004f2007d2a43820488d377d7167ece">SECP256K1_N_C_0</a></div><div class="ttdeci">#define SECP256K1_N_C_0</div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64__impl_8h_source.html#l00017">scalar_4x64_impl.h:17</a></div></div>
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