// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (c) 2017 Armando Faz <armfazh@ic.unicamp.br>. All Rights Reserved.
 * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 * Copyright (C) 2018 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
 */

#include <crypto/curve25519.h>
#include <crypto/internal/kpp.h>

#include <linux/types.h>
#include <linux/jump_label.h>
#include <linux/kernel.h>
#include <linux/module.h>

#include <asm/cpufeature.h>
#include <asm/processor.h>

static __ro_after_init DEFINE_STATIC_KEY_FALSE(curve25519_use_bmi2);
static __ro_after_init DEFINE_STATIC_KEY_FALSE(curve25519_use_adx);

enum { NUM_WORDS_ELTFP25519 = 4 };
typedef __aligned(32) u64 eltfp25519_1w[NUM_WORDS_ELTFP25519];
typedef __aligned(32) u64 eltfp25519_1w_buffer[2 * NUM_WORDS_ELTFP25519];

#define mul_eltfp25519_1w_adx(c, a, b) do { \
	mul_256x256_integer_adx(m.buffer, a, b); \
	red_eltfp25519_1w_adx(c, m.buffer); \
} while (0)

#define mul_eltfp25519_1w_bmi2(c, a, b) do { \
	mul_256x256_integer_bmi2(m.buffer, a, b); \
	red_eltfp25519_1w_bmi2(c, m.buffer); \
} while (0)

#define sqr_eltfp25519_1w_adx(a) do { \
	sqr_256x256_integer_adx(m.buffer, a); \
	red_eltfp25519_1w_adx(a, m.buffer); \
} while (0)

#define sqr_eltfp25519_1w_bmi2(a) do { \
	sqr_256x256_integer_bmi2(m.buffer, a); \
	red_eltfp25519_1w_bmi2(a, m.buffer); \
} while (0)

#define mul_eltfp25519_2w_adx(c, a, b) do { \
	mul2_256x256_integer_adx(m.buffer, a, b); \
	red_eltfp25519_2w_adx(c, m.buffer); \
} while (0)

#define mul_eltfp25519_2w_bmi2(c, a, b) do { \
	mul2_256x256_integer_bmi2(m.buffer, a, b); \
	red_eltfp25519_2w_bmi2(c, m.buffer); \
} while (0)

#define sqr_eltfp25519_2w_adx(a) do { \
	sqr2_256x256_integer_adx(m.buffer, a); \
	red_eltfp25519_2w_adx(a, m.buffer); \
} while (0)

#define sqr_eltfp25519_2w_bmi2(a) do { \
	sqr2_256x256_integer_bmi2(m.buffer, a); \
	red_eltfp25519_2w_bmi2(a, m.buffer); \
} while (0)

#define sqrn_eltfp25519_1w_adx(a, times) do { \
	int ____counter = (times); \
	while (____counter-- > 0) \
		sqr_eltfp25519_1w_adx(a); \
} while (0)

#define sqrn_eltfp25519_1w_bmi2(a, times) do { \
	int ____counter = (times); \
	while (____counter-- > 0) \
		sqr_eltfp25519_1w_bmi2(a); \
} while (0)

#define copy_eltfp25519_1w(C, A) do { \
	(C)[0] = (A)[0]; \
	(C)[1] = (A)[1]; \
	(C)[2] = (A)[2]; \
	(C)[3] = (A)[3]; \
} while (0)

#define setzero_eltfp25519_1w(C) do { \
	(C)[0] = 0; \
	(C)[1] = 0; \
	(C)[2] = 0; \
	(C)[3] = 0; \
} while (0)

__aligned(32) static const u64 table_ladder_8k[252 * NUM_WORDS_ELTFP25519] = {
	/*   1 */ 0xfffffffffffffff3UL, 0xffffffffffffffffUL,
		  0xffffffffffffffffUL, 0x5fffffffffffffffUL,
	/*   2 */ 0x6b8220f416aafe96UL, 0x82ebeb2b4f566a34UL,
		  0xd5a9a5b075a5950fUL, 0x5142b2cf4b2488f4UL,
	/*   3 */ 0x6aaebc750069680cUL, 0x89cf7820a0f99c41UL,
		  0x2a58d9183b56d0f4UL, 0x4b5aca80e36011a4UL,
	/*   4 */ 0x329132348c29745dUL, 0xf4a2e616e1642fd7UL,
		  0x1e45bb03ff67bc34UL, 0x306912d0f42a9b4aUL,
	/*   5 */ 0xff886507e6af7154UL, 0x04f50e13dfeec82fUL,
		  0xaa512fe82abab5ceUL, 0x174e251a68d5f222UL,
	/*   6 */ 0xcf96700d82028898UL, 0x1743e3370a2c02c5UL,
		  0x379eec98b4e86eaaUL, 0x0c59888a51e0482eUL,
	/*   7 */ 0xfbcbf1d699b5d189UL, 0xacaef0d58e9fdc84UL,
		  0xc1c20d06231f7614UL, 0x2938218da274f972UL,
	/*   8 */ 0xf6af49beff1d7f18UL, 0xcc541c22387ac9c2UL,
		  0x96fcc9ef4015c56bUL, 0x69c1627c690913a9UL,
	/*   9 */ 0x7a86fd2f4733db0eUL, 0xfdb8c4f29e087de9UL,
		  0x095e4b1a8ea2a229UL, 0x1ad7a7c829b37a79UL,
	/*  10 */ 0x342d89cad17ea0c0UL, 0x67bedda6cced2051UL,
		  0x19ca31bf2bb42f74UL, 0x3df7b4c84980acbbUL,
	/*  11 */ 0xa8c6444dc80ad883UL, 0xb91e440366e3ab85UL,
		  0xc215cda00164f6d8UL, 0x3d867c6ef247e668UL,
	/*  12 */ 0xc7dd582bcc3e658cUL, 0xfd2c4748ee0e5528UL,
		  0xa0fd9b95cc9f4f71UL, 0x7529d871b0675ddfUL,
	/*  13 */ 0xb8f568b42d3cbd78UL, 0x1233011b91f3da82UL,
		  0x2dce6ccd4a7c3b62UL, 0x75e7fc8e9e498603UL,
	/*  14 */ 0x2f4f13f1fcd0b6ecUL, 0xf1a8ca1f29ff7a45UL,
		  0xc249c1a72981e29bUL, 0x6ebe0dbb8c83b56aUL,
	/*  15 */ 0x7114fa8d170bb222UL, 0x65a2dcd5bf93935fUL,
		  0xbdc41f68b59c979aUL, 0x2f0eef79a2ce9289UL,
	/*  16 */ 0x42ecbf0c083c37ceUL, 0x2930bc09ec496322UL,
		  0xf294b0c19cfeac0dUL, 0x3780aa4bedfabb80UL,
	/*  17 */ 0x56c17d3e7cead929UL, 0xe7cb4beb2e5722c5UL,
		  0x0ce931732dbfe15aUL, 0x41b883c7621052f8UL,
	/*  18 */ 0xdbf75ca0c3d25350UL, 0x2936be086eb1e351UL,
		  0xc936e03cb4a9b212UL, 0x1d45bf82322225aaUL,
	/*  19 */ 0xe81ab1036a024cc5UL, 0xe212201c304c9a72UL,
		  0xc5d73fba6832b1fcUL, 0x20ffdb5a4d839581UL,
	/*  20 */ 0xa283d367be5d0fadUL, 0x6c2b25ca8b164475UL,
		  0x9d4935467caaf22eUL, 0x5166408eee85ff49UL,
	/*  21 */ 0x3c67baa2fab4e361UL, 0xb3e433c67ef35cefUL,
		  0x5259729241159b1cUL, 0x6a621892d5b0ab33UL,
	/*  22 */ 0x20b74a387555cdcbUL, 0x532aa10e1208923fUL,
		  0xeaa17b7762281dd1UL, 0x61ab3443f05c44bfUL,
	/*  23 */ 0x257a6c422324def8UL, 0x131c6c1017e3cf7fUL,
		  0x23758739f630a257UL, 0x295a407a01a78580UL,
	/*  24 */ 0xf8c443246d5da8d9UL, 0x19d775450c52fa5dUL,
		  0x2afcfc92731bf83dUL, 0x7d10c8e81b2b4700UL,
	/*  25 */ 0xc8e0271f70baa20bUL, 0x993748867ca63957UL,
		  0x5412efb3cb7ed4bbUL, 0x3196d36173e62975UL,
	/*  26 */ 0xde5bcad141c7dffcUL, 0x47cc8cd2b395c848UL,
		  0xa34cd942e11af3cbUL, 0x0256dbf2d04ecec2UL,
	/*  27 */ 0x875ab7e94b0e667fUL, 0xcad4dd83c0850d10UL,
		  0x47f12e8f4e72c79fUL, 0x5f1a87bb8c85b19bUL,
	/*  28 */ 0x7ae9d0b6437f51b8UL, 0x12c7ce5518879065UL,
		  0x2ade09fe5cf77aeeUL, 0x23a05a2f7d2c5627UL,
	/*  29 */ 0x5908e128f17c169aUL, 0xf77498dd8ad0852dUL,
		  0x74b4c4ceab102f64UL, 0x183abadd10139845UL,
	/*  30 */ 0xb165ba8daa92aaacUL, 0xd5c5ef9599386705UL,
		  0xbe2f8f0cf8fc40d1UL, 0x2701e635ee204514UL,
	/*  31 */ 0x629fa80020156514UL, 0xf223868764a8c1ceUL,
		  0x5b894fff0b3f060eUL, 0x60d9944cf708a3faUL,
	/*  32 */ 0xaeea001a1c7a201fUL, 0xebf16a633ee2ce63UL,
		  0x6f7709594c7a07e1UL, 0x79b958150d0208cbUL,
	/*  33 */ 0x24b55e5301d410e7UL, 0xe3a34edff3fdc84dUL,
		  0xd88768e4904032d8UL, 0x131384427b3aaeecUL,
	/*  34 */ 0x8405e51286234f14UL, 0x14dc4739adb4c529UL,
		  0xb8a2b5b250634ffdUL, 0x2fe2a94ad8a7ff93UL,
	/*  35 */ 0xec5c57efe843faddUL, 0x2843ce40f0bb9918UL,
		  0xa4b561d6cf3d6305UL, 0x743629bde8fb777eUL,
	/*  36 */ 0x343edd46bbaf738fUL, 0xed981828b101a651UL,
		  0xa401760b882c797aUL, 0x1fc223e28dc88730UL,
	/*  37 */ 0x48604e91fc0fba0eUL, 0xb637f78f052c6fa4UL,
		  0x91ccac3d09e9239cUL, 0x23f7eed4437a687cUL,
	/*  38 */ 0x5173b1118d9bd800UL, 0x29d641b63189d4a7UL,
		  0xfdbf177988bbc586UL, 0x2959894fcad81df5UL,
	/*  39 */ 0xaebc8ef3b4bbc899UL, 0x4148995ab26992b9UL,
		  0x24e20b0134f92cfbUL, 0x40d158894a05dee8UL,
	/*  40 */ 0x46b00b1185af76f6UL, 0x26bac77873187a79UL,
		  0x3dc0bf95ab8fff5fUL, 0x2a608bd8945524d7UL,
	/*  41 */ 0x26449588bd446302UL, 0x7c4bc21c0388439cUL,
		  0x8e98a4f383bd11b2UL, 0x26218d7bc9d876b9UL,
	/*  42 */ 0xe3081542997c178aUL, 0x3c2d29a86fb6606fUL,
		  0x5c217736fa279374UL, 0x7dde05734afeb1faUL,
	/*  43 */ 0x3bf10e3906d42babUL, 0xe4f7803e1980649cUL,
		  0xe6053bf89595bf7aUL, 0x394faf38da245530UL,
	/*  44 */ 0x7a8efb58896928f4UL, 0xfbc778e9cc6a113cUL,
		  0x72670ce330af596fUL, 0x48f222a81d3d6cf7UL,
	/*  45 */ 0xf01fce410d72caa7UL, 0x5a20ecc7213b5595UL,
		  0x7bc21165c1fa1483UL, 0x07f89ae31da8a741UL,
	/*  46 */ 0x05d2c2b4c6830ff9UL, 0xd43e330fc6316293UL,
		  0xa5a5590a96d3a904UL, 0x705edb91a65333b6UL,
	/*  47 */ 0x048ee15e0bb9a5f7UL, 0x3240cfca9e0aaf5dUL,
		  0x8f4b71ceedc4a40bUL, 0x621c0da3de544a6dUL,
	/*  48 */ 0x92872836a08c4091UL, 0xce8375b010c91445UL,
		  0x8a72eb524f276394UL, 0x2667fcfa7ec83635UL,
	/*  49 */ 0x7f4c173345e8752aUL, 0x061b47feee7079a5UL,
		  0x25dd9afa9f86ff34UL, 0x3780cef5425dc89cUL,
	/*  50 */ 0x1a46035a513bb4e9UL, 0x3e1ef379ac575adaUL,
		  0xc78c5f1c5fa24b50UL, 0x321a967634fd9f22UL,
	/*  51 */ 0x946707b8826e27faUL, 0x3dca84d64c506fd0UL,
		  0xc189218075e91436UL, 0x6d9284169b3b8484UL,
	/*  52 */ 0x3a67e840383f2ddfUL, 0x33eec9a30c4f9b75UL,
		  0x3ec7c86fa783ef47UL, 0x26ec449fbac9fbc4UL,
	/*  53 */ 0x5c0f38cba09b9e7dUL, 0x81168cc762a3478cUL,
		  0x3e23b0d306fc121cUL, 0x5a238aa0a5efdcddUL,
	/*  54 */ 0x1ba26121c4ea43ffUL, 0x36f8c77f7c8832b5UL,
		  0x88fbea0b0adcf99aUL, 0x5ca9938ec25bebf9UL,
	/*  55 */ 0xd5436a5e51fccda0UL, 0x1dbc4797c2cd893bUL,
		  0x19346a65d3224a08UL, 0x0f5034e49b9af466UL,
	/*  56 */ 0xf23c3967a1e0b96eUL, 0xe58b08fa867a4d88UL,
		  0xfb2fabc6a7341679UL, 0x2a75381eb6026946UL,
	/*  57 */ 0xc80a3be4c19420acUL, 0x66b1f6c681f2b6dcUL,
		  0x7cf7036761e93388UL, 0x25abbbd8a660a4c4UL,
	/*  58 */ 0x91ea12ba14fd5198UL, 0x684950fc4a3cffa9UL,
		  0xf826842130f5ad28UL, 0x3ea988f75301a441UL,
	/*  59 */ 0xc978109a695f8c6fUL, 0x1746eb4a0530c3f3UL,
		  0x444d6d77b4459995UL, 0x75952b8c054e5cc7UL,
	/*  60 */ 0xa3703f7915f4d6aaUL, 0x66c346202f2647d8UL,
		  0xd01469df811d644bUL, 0x77fea47d81a5d71fUL,
	/*  61 */ 0xc5e9529ef57ca381UL, 0x6eeeb4b9ce2f881aUL,
		  0xb6e91a28e8009bd6UL, 0x4b80be3e9afc3fecUL,
	/*  62 */ 0x7e3773c526aed2c5UL, 0x1b4afcb453c9a49dUL,
		  0xa920bdd7baffb24dUL, 0x7c54699f122d400eUL,
	/*  63 */ 0xef46c8e14fa94bc8UL, 0xe0b074ce2952ed5eUL,
		  0xbea450e1dbd885d5UL, 0x61b68649320f712cUL,
	/*  64 */ 0x8a485f7309ccbdd1UL, 0xbd06320d7d4d1a2dUL,
		  0x25232973322dbef4UL, 0x445dc4758c17f770UL,
	/*  65 */ 0xdb0434177cc8933cUL, 0xed6fe82175ea059fUL,
		  0x1efebefdc053db34UL, 0x4adbe867c65daf99UL,
	/*  66 */ 0x3acd71a2a90609dfUL, 0xe5e991856dd04050UL,
		  0x1ec69b688157c23cUL, 0x697427f6885cfe4dUL,
	/*  67 */ 0xd7be7b9b65e1a851UL, 0xa03d28d522c536ddUL,
		  0x28399d658fd2b645UL, 0x49e5b7e17c2641e1UL,
	/*  68 */ 0x6f8c3a98700457a4UL, 0x5078f0a25ebb6778UL,
		  0xd13c3ccbc382960fUL, 0x2e003258a7df84b1UL,
	/*  69 */ 0x8ad1f39be6296a1cUL, 0xc1eeaa652a5fbfb2UL,
		  0x33ee0673fd26f3cbUL, 0x59256173a69d2cccUL,
	/*  70 */ 0x41ea07aa4e18fc41UL, 0xd9fc19527c87a51eUL,
		  0xbdaacb805831ca6fUL, 0x445b652dc916694fUL,
	/*  71 */ 0xce92a3a7f2172315UL, 0x1edc282de11b9964UL,
		  0xa1823aafe04c314aUL, 0x790a2d94437cf586UL,
	/*  72 */ 0x71c447fb93f6e009UL, 0x8922a56722845276UL,
		  0xbf70903b204f5169UL, 0x2f7a89891ba319feUL,
	/*  73 */ 0x02a08eb577e2140cUL, 0xed9a4ed4427bdcf4UL,
		  0x5253ec44e4323cd1UL, 0x3e88363c14e9355bUL,
	/*  74 */ 0xaa66c14277110b8cUL, 0x1ae0391610a23390UL,
		  0x2030bd12c93fc2a2UL, 0x3ee141579555c7abUL,
	/*  75 */ 0x9214de3a6d6e7d41UL, 0x3ccdd88607f17efeUL,
		  0x674f1288f8e11217UL, 0x5682250f329f93d0UL,
	/*  76 */ 0x6cf00b136d2e396eUL, 0x6e4cf86f1014debfUL,
		  0x5930b1b5bfcc4e83UL, 0x047069b48aba16b6UL,
	/*  77 */ 0x0d4ce4ab69b20793UL, 0xb24db91a97d0fb9eUL,
		  0xcdfa50f54e00d01dUL, 0x221b1085368bddb5UL,
	/*  78 */ 0xe7e59468b1e3d8d2UL, 0x53c56563bd122f93UL,
		  0xeee8a903e0663f09UL, 0x61efa662cbbe3d42UL,
	/*  79 */ 0x2cf8ddddde6eab2aUL, 0x9bf80ad51435f231UL,
		  0x5deadacec9f04973UL, 0x29275b5d41d29b27UL,
	/*  80 */ 0xcfde0f0895ebf14fUL, 0xb9aab96b054905a7UL,
		  0xcae80dd9a1c420fdUL, 0x0a63bf2f1673bbc7UL,
	/*  81 */ 0x092f6e11958fbc8cUL, 0x672a81e804822fadUL,
		  0xcac8351560d52517UL, 0x6f3f7722c8f192f8UL,
	/*  82 */ 0xf8ba90ccc2e894b7UL, 0x2c7557a438ff9f0dUL,
		  0x894d1d855ae52359UL, 0x68e122157b743d69UL,
	/*  83 */ 0xd87e5570cfb919f3UL, 0x3f2cdecd95798db9UL,
		  0x2121154710c0a2ceUL, 0x3c66a115246dc5b2UL,
	/*  84 */ 0xcbedc562294ecb72UL, 0xba7143c36a280b16UL,
		  0x9610c2efd4078b67UL, 0x6144735d946a4b1eUL,
	/*  85 */ 0x536f111ed75b3350UL, 0x0211db8c2041d81bUL,
		  0xf93cb1000e10413cUL, 0x149dfd3c039e8876UL,
	/*  86 */ 0xd479dde46b63155bUL, 0xb66e15e93c837976UL,
		  0xdafde43b1f13e038UL, 0x5fafda1a2e4b0b35UL,
	/*  87 */ 0x3600bbdf17197581UL, 0x3972050bbe3cd2c2UL,
		  0x5938906dbdd5be86UL, 0x34fce5e43f9b860fUL,
	/*  88 */ 0x75a8a4cd42d14d02UL, 0x828dabc53441df65UL,
		  0x33dcabedd2e131d3UL, 0x3ebad76fb814d25fUL,
	/*  89 */ 0xd4906f566f70e10fUL, 0x5d12f7aa51690f5aUL,
		  0x45adb16e76cefcf2UL, 0x01f768aead232999UL,
	/*  90 */ 0x2b6cc77b6248febdUL, 0x3cd30628ec3aaffdUL,
		  0xce1c0b80d4ef486aUL, 0x4c3bff2ea6f66c23UL,
	/*  91 */ 0x3f2ec4094aeaeb5fUL, 0x61b19b286e372ca7UL,
		  0x5eefa966de2a701dUL, 0x23b20565de55e3efUL,
	/*  92 */ 0xe301ca5279d58557UL, 0x07b2d4ce27c2874fUL,
		  0xa532cd8a9dcf1d67UL, 0x2a52fee23f2bff56UL,
	/*  93 */ 0x8624efb37cd8663dUL, 0xbbc7ac20ffbd7594UL,
		  0x57b85e9c82d37445UL, 0x7b3052cb86a6ec66UL,
	/*  94 */ 0x3482f0ad2525e91eUL, 0x2cb68043d28edca0UL,
		  0xaf4f6d052e1b003aUL, 0x185f8c2529781b0aUL,
	/*  95 */ 0xaa41de5bd80ce0d6UL, 0x9407b2416853e9d6UL,
		  0x563ec36e357f4c3aUL, 0x4cc4b8dd0e297bceUL,
	/*  96 */ 0xa2fc1a52ffb8730eUL, 0x1811f16e67058e37UL,
		  0x10f9a366cddf4ee1UL, 0x72f4a0c4a0b9f099UL,
	/*  97 */ 0x8c16c06f663f4ea7UL, 0x693b3af74e970fbaUL,
		  0x2102e7f1d69ec345UL, 0x0ba53cbc968a8089UL,
	/*  98 */ 0xca3d9dc7fea15537UL, 0x4c6824bb51536493UL,
		  0xb9886314844006b1UL, 0x40d2a72ab454cc60UL,
	/*  99 */ 0x5936a1b712570975UL, 0x91b9d648debda657UL,
		  0x3344094bb64330eaUL, 0x006ba10d12ee51d0UL,
	/* 100 */ 0x19228468f5de5d58UL, 0x0eb12f4c38cc05b0UL,
		  0xa1039f9dd5601990UL, 0x4502d4ce4fff0e0bUL,
	/* 101 */ 0xeb2054106837c189UL, 0xd0f6544c6dd3b93cUL,
		  0x40727064c416d74fUL, 0x6e15c6114b502ef0UL,
	/* 102 */ 0x4df2a398cfb1a76bUL, 0x11256c7419f2f6b1UL,
		  0x4a497962066e6043UL, 0x705b3aab41355b44UL,
	/* 103 */ 0x365ef536d797b1d8UL, 0x00076bd622ddf0dbUL,
		  0x3bbf33b0e0575a88UL, 0x3777aa05c8e4ca4dUL,
	/* 104 */ 0x392745c85578db5fUL, 0x6fda4149dbae5ae2UL,
		  0xb1f0b00b8adc9867UL, 0x09963437d36f1da3UL,
	/* 105 */ 0x7e824e90a5dc3853UL, 0xccb5f6641f135cbdUL,
		  0x6736d86c87ce8fccUL, 0x625f3ce26604249fUL,
	/* 106 */ 0xaf8ac8059502f63fUL, 0x0c05e70a2e351469UL,
		  0x35292e9c764b6305UL, 0x1a394360c7e23ac3UL,
	/* 107 */ 0xd5c6d53251183264UL, 0x62065abd43c2b74fUL,
		  0xb5fbf5d03b973f9bUL, 0x13a3da3661206e5eUL,
	/* 108 */ 0xc6bd5837725d94e5UL, 0x18e30912205016c5UL,
		  0x2088ce1570033c68UL, 0x7fba1f495c837987UL,
	/* 109 */ 0x5a8c7423f2f9079dUL, 0x1735157b34023fc5UL,
		  0xe4f9b49ad2fab351UL, 0x6691ff72c878e33cUL,
	/* 110 */ 0x122c2adedc5eff3eUL, 0xf8dd4bf1d8956cf4UL,
		  0xeb86205d9e9e5bdaUL, 0x049b92b9d975c743UL,
	/* 111 */ 0xa5379730b0f6c05aUL, 0x72a0ffacc6f3a553UL,
		  0xb0032c34b20dcd6dUL, 0x470e9dbc88d5164aUL,
	/* 112 */ 0xb19cf10ca237c047UL, 0xb65466711f6c81a2UL,
		  0xb3321bd16dd80b43UL, 0x48c14f600c5fbe8eUL,
	/* 113 */ 0x66451c264aa6c803UL, 0xb66e3904a4fa7da6UL,
		  0xd45f19b0b3128395UL, 0x31602627c3c9bc10UL,
	/* 114 */ 0x3120dc4832e4e10dUL, 0xeb20c46756c717f7UL,
		  0x00f52e3f67280294UL, 0x566d4fc14730c509UL,
	/* 115 */ 0x7e3a5d40fd837206UL, 0xc1e926dc7159547aUL,
		  0x216730fba68d6095UL, 0x22e8c3843f69cea7UL,
	/* 116 */ 0x33d074e8930e4b2bUL, 0xb6e4350e84d15816UL,
		  0x5534c26ad6ba2365UL, 0x7773c12f89f1f3f3UL,
	/* 117 */ 0x8cba404da57962aaUL, 0x5b9897a81999ce56UL,
		  0x508e862f121692fcUL, 0x3a81907fa093c291UL,
	/* 118 */ 0x0dded0ff4725a510UL, 0x10d8cc10673fc503UL,
		  0x5b9d151c9f1f4e89UL, 0x32a5c1d5cb09a44cUL,
	/* 119 */ 0x1e0aa442b90541fbUL, 0x5f85eb7cc1b485dbUL,
		  0xbee595ce8a9df2e5UL, 0x25e496c722422236UL,
	/* 120 */ 0x5edf3c46cd0fe5b9UL, 0x34e75a7ed2a43388UL,
		  0xe488de11d761e352UL, 0x0e878a01a085545cUL,
	/* 121 */ 0xba493c77e021bb04UL, 0x2b4d1843c7df899aUL,
		  0x9ea37a487ae80d67UL, 0x67a9958011e41794UL,
	/* 122 */ 0x4b58051a6697b065UL, 0x47e33f7d8d6ba6d4UL,
		  0xbb4da8d483ca46c1UL, 0x68becaa181c2db0dUL,
	/* 123 */ 0x8d8980e90b989aa5UL, 0xf95eb14a2c93c99bUL,
		  0x51c6c7c4796e73a2UL, 0x6e228363b5efb569UL,
	/* 124 */ 0xc6bbc0b02dd624c8UL, 0x777eb47dec8170eeUL,
		  0x3cde15a004cfafa9UL, 0x1dc6bc087160bf9bUL,
	/* 125 */ 0x2e07e043eec34002UL, 0x18e9fc677a68dc7fUL,
		  0xd8da03188bd15b9aUL, 0x48fbc3bb00568253UL,
	/* 126 */ 0x57547d4cfb654ce1UL, 0xd3565b82a058e2adUL,
		  0xf63eaf0bbf154478UL, 0x47531ef114dfbb18UL,
	/* 127 */ 0xe1ec630a4278c587UL, 0x5507d546ca8e83f3UL,
		  0x85e135c63adc0c2bUL, 0x0aa7efa85682844eUL,
	/* 128 */ 0x72691ba8b3e1f615UL, 0x32b4e9701fbe3ffaUL,
		  0x97b6d92e39bb7868UL, 0x2cfe53dea02e39e8UL,
	/* 129 */ 0x687392cd85cd52b0UL, 0x27ff66c910e29831UL,
		  0x97134556a9832d06UL, 0x269bb0360a84f8a0UL,
	/* 130 */ 0x706e55457643f85cUL, 0x3734a48c9b597d1bUL,
		  0x7aee91e8c6efa472UL, 0x5cd6abc198a9d9e0UL,
	/* 131 */ 0x0e04de06cb3ce41aUL, 0xd8c6eb893402e138UL,
		  0x904659bb686e3772UL, 0x7215c371746ba8c8UL,
	/* 132 */ 0xfd12a97eeae4a2d9UL, 0x9514b7516394f2c5UL,
		  0x266fd5809208f294UL, 0x5c847085619a26b9UL,
	/* 133 */ 0x52985410fed694eaUL, 0x3c905b934a2ed254UL,
		  0x10bb47692d3be467UL, 0x063b3d2d69e5e9e1UL,
	/* 134 */ 0x472726eedda57debUL, 0xefb6c4ae10f41891UL,
		  0x2b1641917b307614UL, 0x117c554fc4f45b7cUL,
	/* 135 */ 0xc07cf3118f9d8812UL, 0x01dbd82050017939UL,
		  0xd7e803f4171b2827UL, 0x1015e87487d225eaUL,
	/* 136 */ 0xc58de3fed23acc4dUL, 0x50db91c294a7be2dUL,
		  0x0b94d43d1c9cf457UL, 0x6b1640fa6e37524aUL,
	/* 137 */ 0x692f346c5fda0d09UL, 0x200b1c59fa4d3151UL,
		  0xb8c46f760777a296UL, 0x4b38395f3ffdfbcfUL,
	/* 138 */ 0x18d25e00be54d671UL, 0x60d50582bec8aba6UL,
		  0x87ad8f263b78b982UL, 0x50fdf64e9cda0432UL,
	/* 139 */ 0x90f567aac578dcf0UL, 0xef1e9b0ef2a3133bUL,
		  0x0eebba9242d9de71UL, 0x15473c9bf03101c7UL,
	/* 140 */ 0x7c77e8ae56b78095UL, 0xb678e7666e6f078eUL,
		  0x2da0b9615348ba1fUL, 0x7cf931c1ff733f0bUL,
	/* 141 */ 0x26b357f50a0a366cUL, 0xe9708cf42b87d732UL,
		  0xc13aeea5f91cb2c0UL, 0x35d90c991143bb4cUL,
	/* 142 */ 0x47c1c404a9a0d9dcUL, 0x659e58451972d251UL,
		  0x3875a8c473b38c31UL, 0x1fbd9ed379561f24UL,
	/* 143 */ 0x11fabc6fd41ec28dUL, 0x7ef8dfe3cd2a2dcaUL,
		  0x72e73b5d8c404595UL, 0x6135fa4954b72f27UL,
	/* 144 */ 0xccfc32a2de24b69cUL, 0x3f55698c1f095d88UL,
		  0xbe3350ed5ac3f929UL, 0x5e9bf806ca477eebUL,
	/* 145 */ 0xe9ce8fb63c309f68UL, 0x5376f63565e1f9f4UL,
		  0xd1afcfb35a6393f1UL, 0x6632a1ede5623506UL,
	/* 146 */ 0x0b7d6c390c2ded4cUL, 0x56cb3281df04cb1fUL,
		  0x66305a1249ecc3c7UL, 0x5d588b60a38ca72aUL,
	/* 147 */ 0xa6ecbf78e8e5f42dUL, 0x86eeb44b3c8a3eecUL,
		  0xec219c48fbd21604UL, 0x1aaf1af517c36731UL,
	/* 148 */ 0xc306a2836769bde7UL, 0x208280622b1e2adbUL,
		  0x8027f51ffbff94a6UL, 0x76cfa1ce1124f26bUL,
	/* 149 */ 0x18eb00562422abb6UL, 0xf377c4d58f8c29c3UL,
		  0x4dbbc207f531561aUL, 0x0253b7f082128a27UL,
	/* 150 */ 0x3d1f091cb62c17e0UL, 0x4860e1abd64628a9UL,
		  0x52d17436309d4253UL, 0x356f97e13efae576UL,
	/* 151 */ 0xd351e11aa150535bUL, 0x3e6b45bb1dd878ccUL,
		  0x0c776128bed92c98UL, 0x1d34ae93032885b8UL,
	/* 152 */ 0x4ba0488ca85ba4c3UL, 0x985348c33c9ce6ceUL,
		  0x66124c6f97bda770UL, 0x0f81a0290654124aUL,
	/* 153 */ 0x9ed09ca6569b86fdUL, 0x811009fd18af9a2dUL,
		  0xff08d03f93d8c20aUL, 0x52a148199faef26bUL,
	/* 154 */ 0x3e03f9dc2d8d1b73UL, 0x4205801873961a70UL,
		  0xc0d987f041a35970UL, 0x07aa1f15a1c0d549UL,
	/* 155 */ 0xdfd46ce08cd27224UL, 0x6d0a024f934e4239UL,
		  0x808a7a6399897b59UL, 0x0a4556e9e13d95a2UL,
	/* 156 */ 0xd21a991fe9c13045UL, 0x9b0e8548fe7751b8UL,
		  0x5da643cb4bf30035UL, 0x77db28d63940f721UL,
	/* 157 */ 0xfc5eeb614adc9011UL, 0x5229419ae8c411ebUL,
		  0x9ec3e7787d1dcf74UL, 0x340d053e216e4cb5UL,
	/* 158 */ 0xcac7af39b48df2b4UL, 0xc0faec2871a10a94UL,
		  0x140a69245ca575edUL, 0x0cf1c37134273a4cUL,
	/* 159 */ 0xc8ee306ac224b8a5UL, 0x57eaee7ccb4930b0UL,
		  0xa1e806bdaacbe74fUL, 0x7d9a62742eeb657dUL,
	/* 160 */ 0x9eb6b6ef546c4830UL, 0x885cca1fddb36e2eUL,
		  0xe6b9f383ef0d7105UL, 0x58654fef9d2e0412UL,
	/* 161 */ 0xa905c4ffbe0e8e26UL, 0x942de5df9b31816eUL,
		  0x497d723f802e88e1UL, 0x30684dea602f408dUL,
	/* 162 */ 0x21e5a278a3e6cb34UL, 0xaefb6e6f5b151dc4UL,
		  0xb30b8e049d77ca15UL, 0x28c3c9cf53b98981UL,
	/* 163 */ 0x287fb721556cdd2aUL, 0x0d317ca897022274UL,
		  0x7468c7423a543258UL, 0x4a7f11464eb5642fUL,
	/* 164 */ 0xa237a4774d193aa6UL, 0xd865986ea92129a1UL,
		  0x24c515ecf87c1a88UL, 0x604003575f39f5ebUL,
	/* 165 */ 0x47b9f189570a9b27UL, 0x2b98cede465e4b78UL,
		  0x026df551dbb85c20UL, 0x74fcd91047e21901UL,
	/* 166 */ 0x13e2a90a23c1bfa3UL, 0x0cb0074e478519f6UL,
		  0x5ff1cbbe3af6cf44UL, 0x67fe5438be812dbeUL,
	/* 167 */ 0xd13cf64fa40f05b0UL, 0x054dfb2f32283787UL,
		  0x4173915b7f0d2aeaUL, 0x482f144f1f610d4eUL,
	/* 168 */ 0xf6210201b47f8234UL, 0x5d0ae1929e70b990UL,
		  0xdcd7f455b049567cUL, 0x7e93d0f1f0916f01UL,
	/* 169 */ 0xdd79cbf18a7db4faUL, 0xbe8391bf6f74c62fUL,
		  0x027145d14b8291bdUL, 0x585a73ea2cbf1705UL,
	/* 170 */ 0x485ca03e928a0db2UL, 0x10fc01a5742857e7UL,
		  0x2f482edbd6d551a7UL, 0x0f0433b5048fdb8aUL,
	/* 171 */ 0x60da2e8dd7dc6247UL, 0x88b4c9d38cd4819aUL,
		  0x13033ac001f66697UL, 0x273b24fe3b367d75UL,
	/* 172 */ 0xc6e8f66a31b3b9d4UL, 0x281514a494df49d5UL,
		  0xd1726fdfc8b23da7UL, 0x4b3ae7d103dee548UL,
	/* 173 */ 0xc6256e19ce4b9d7eUL, 0xff5c5cf186e3c61cUL,
		  0xacc63ca34b8ec145UL, 0x74621888fee66574UL,
	/* 174 */ 0x956f409645290a1eUL, 0xef0bf8e3263a962eUL,
		  0xed6a50eb5ec2647bUL, 0x0694283a9dca7502UL,
	/* 175 */ 0x769b963643a2dcd1UL, 0x42b7c8ea09fc5353UL,
		  0x4f002aee13397eabUL, 0x63005e2c19b7d63aUL,
	/* 176 */ 0xca6736da63023beaUL, 0x966c7f6db12a99b7UL,
		  0xace09390c537c5e1UL, 0x0b696063a1aa89eeUL,
	/* 177 */ 0xebb03e97288c56e5UL, 0x432a9f9f938c8be8UL,
		  0xa6a5a93d5b717f71UL, 0x1a5fb4c3e18f9d97UL,
	/* 178 */ 0x1c94e7ad1c60cdceUL, 0xee202a43fc02c4a0UL,
		  0x8dafe4d867c46a20UL, 0x0a10263c8ac27b58UL,
	/* 179 */ 0xd0dea9dfe4432a4aUL, 0x856af87bbe9277c5UL,
		  0xce8472acc212c71aUL, 0x6f151b6d9bbb1e91UL,
	/* 180 */ 0x26776c527ceed56aUL, 0x7d211cb7fbf8faecUL,
		  0x37ae66a6fd4609ccUL, 0x1f81b702d2770c42UL,
	/* 181 */ 0x2fb0b057eac58392UL, 0xe1dd89fe29744e9dUL,
		  0xc964f8eb17beb4f8UL, 0x29571073c9a2d41eUL,
	/* 182 */ 0xa948a18981c0e254UL, 0x2df6369b65b22830UL,
		  0xa33eb2d75fcfd3c6UL, 0x078cd6ec4199a01fUL,
	/* 183 */ 0x4a584a41ad900d2fUL, 0x32142b78e2c74c52UL,
		  0x68c4e8338431c978UL, 0x7f69ea9008689fc2UL,
	/* 184 */ 0x52f2c81e46a38265UL, 0xfd78072d04a832fdUL,
		  0x8cd7d5fa25359e94UL, 0x4de71b7454cc29d2UL,
	/* 185 */ 0x42eb60ad1eda6ac9UL, 0x0aad37dfdbc09c3aUL,
		  0x81004b71e33cc191UL, 0x44e6be345122803cUL,
	/* 186 */ 0x03fe8388ba1920dbUL, 0xf5d57c32150db008UL,
		  0x49c8c4281af60c29UL, 0x21edb518de701aeeUL,
	/* 187 */ 0x7fb63e418f06dc99UL, 0xa4460d99c166d7b8UL,
		  0x24dd5248ce520a83UL, 0x5ec3ad712b928358UL,
	/* 188 */ 0x15022a5fbd17930fUL, 0xa4f64a77d82570e3UL,
		  0x12bc8d6915783712UL, 0x498194c0fc620abbUL,
	/* 189 */ 0x38a2d9d255686c82UL, 0x785c6bd9193e21f0UL,
		  0xe4d5c81ab24a5484UL, 0x56307860b2e20989UL,
	/* 190 */ 0x429d55f78b4d74c4UL, 0x22f1834643350131UL,
		  0x1e60c24598c71fffUL, 0x59f2f014979983efUL,
	/* 191 */ 0x46a47d56eb494a44UL, 0x3e22a854d636a18eUL,
		  0xb346e15274491c3bUL, 0x2ceafd4e5390cde7UL,
	/* 192 */ 0xba8a8538be0d6675UL, 0x4b9074bb50818e23UL,
		  0xcbdab89085d304c3UL, 0x61a24fe0e56192c4UL,
	/* 193 */ 0xcb7615e6db525bcbUL, 0xdd7d8c35a567e4caUL,
		  0xe6b4153acafcdd69UL, 0x2d668e097f3c9766UL,
	/* 194 */ 0xa57e7e265ce55ef0UL, 0x5d9f4e527cd4b967UL,
		  0xfbc83606492fd1e5UL, 0x090d52beb7c3f7aeUL,
	/* 195 */ 0x09b9515a1e7b4d7cUL, 0x1f266a2599da44c0UL,
		  0xa1c49548e2c55504UL, 0x7ef04287126f15ccUL,
	/* 196 */ 0xfed1659dbd30ef15UL, 0x8b4ab9eec4e0277bUL,
		  0x884d6236a5df3291UL, 0x1fd96ea6bf5cf788UL,
	/* 197 */ 0x42a161981f190d9aUL, 0x61d849507e6052c1UL,
		  0x9fe113bf285a2cd5UL, 0x7c22d676dbad85d8UL,
	/* 198 */ 0x82e770ed2bfbd27dUL, 0x4c05b2ece996f5a5UL,
		  0xcd40a9c2b0900150UL, 0x5895319213d9bf64UL,
	/* 199 */ 0xe7cc5d703fea2e08UL, 0xb50c491258e2188cUL,
		  0xcce30baa48205bf0UL, 0x537c659ccfa32d62UL,
	/* 200 */ 0x37b6623a98cfc088UL, 0xfe9bed1fa4d6aca4UL,
		  0x04d29b8e56a8d1b0UL, 0x725f71c40b519575UL,
	/* 201 */ 0x28c7f89cd0339ce6UL, 0x8367b14469ddc18bUL,
		  0x883ada83a6a1652cUL, 0x585f1974034d6c17UL,
	/* 202 */ 0x89cfb266f1b19188UL, 0xe63b4863e7c35217UL,
		  0xd88c9da6b4c0526aUL, 0x3e035c9df0954635UL,
	/* 203 */ 0xdd9d5412fb45de9dUL, 0xdd684532e4cff40dUL,
		  0x4b5c999b151d671cUL, 0x2d8c2cc811e7f690UL,
	/* 204 */ 0x7f54be1d90055d40UL, 0xa464c5df464aaf40UL,
		  0x33979624f0e917beUL, 0x2c018dc527356b30UL,
	/* 205 */ 0xa5415024e330b3d4UL, 0x73ff3d96691652d3UL,
		  0x94ec42c4ef9b59f1UL, 0x0747201618d08e5aUL,
	/* 206 */ 0x4d6ca48aca411c53UL, 0x66415f2fcfa66119UL,
		  0x9c4dd40051e227ffUL, 0x59810bc09a02f7ebUL,
	/* 207 */ 0x2a7eb171b3dc101dUL, 0x441c5ab99ffef68eUL,
		  0x32025c9b93b359eaUL, 0x5e8ce0a71e9d112fUL,
	/* 208 */ 0xbfcccb92429503fdUL, 0xd271ba752f095d55UL,
		  0x345ead5e972d091eUL, 0x18c8df11a83103baUL,
	/* 209 */ 0x90cd949a9aed0f4cUL, 0xc5d1f4cb6660e37eUL,
		  0xb8cac52d56c52e0bUL, 0x6e42e400c5808e0dUL,
	/* 210 */ 0xa3b46966eeaefd23UL, 0x0c4f1f0be39ecdcaUL,
		  0x189dc8c9d683a51dUL, 0x51f27f054c09351bUL,
	/* 211 */ 0x4c487ccd2a320682UL, 0x587ea95bb3df1c96UL,
		  0xc8ccf79e555cb8e8UL, 0x547dc829a206d73dUL,
	/* 212 */ 0xb822a6cd80c39b06UL, 0xe96d54732000d4c6UL,
		  0x28535b6f91463b4dUL, 0x228f4660e2486e1dUL,
	/* 213 */ 0x98799538de8d3abfUL, 0x8cd8330045ebca6eUL,
		  0x79952a008221e738UL, 0x4322e1a7535cd2bbUL,
	/* 214 */ 0xb114c11819d1801cUL, 0x2016e4d84f3f5ec7UL,
		  0xdd0e2df409260f4cUL, 0x5ec362c0ae5f7266UL,
	/* 215 */ 0xc0462b18b8b2b4eeUL, 0x7cc8d950274d1afbUL,
		  0xf25f7105436b02d2UL, 0x43bbf8dcbff9ccd3UL,
	/* 216 */ 0xb6ad1767a039e9dfUL, 0xb0714da8f69d3583UL,
		  0x5e55fa18b42931f5UL, 0x4ed5558f33c60961UL,
	/* 217 */ 0x1fe37901c647a5ddUL, 0x593ddf1f8081d357UL,
		  0x0249a4fd813fd7a6UL, 0x69acca274e9caf61UL,
	/* 218 */ 0x047ba3ea330721c9UL, 0x83423fc20e7e1ea0UL,
		  0x1df4c0af01314a60UL, 0x09a62dab89289527UL,
	/* 219 */ 0xa5b325a49cc6cb00UL, 0xe94b5dc654b56cb6UL,
		  0x3be28779adc994a0UL, 0x4296e8f8ba3a4aadUL,
	/* 220 */ 0x328689761e451eabUL, 0x2e4d598bff59594aUL,
		  0x49b96853d7a7084aUL, 0x4980a319601420a8UL,
	/* 221 */ 0x9565b9e12f552c42UL, 0x8a5318db7100fe96UL,
		  0x05c90b4d43add0d7UL, 0x538b4cd66a5d4edaUL,
	/* 222 */ 0xf4e94fc3e89f039fUL, 0x592c9af26f618045UL,
		  0x08a36eb5fd4b9550UL, 0x25fffaf6c2ed1419UL,
	/* 223 */ 0x34434459cc79d354UL, 0xeeecbfb4b1d5476bUL,
		  0xddeb34a061615d99UL, 0x5129cecceb64b773UL,
	/* 224 */ 0xee43215894993520UL, 0x772f9c7cf14c0b3bUL,
		  0xd2e2fce306bedad5UL, 0x715f42b546f06a97UL,
	/* 225 */ 0x434ecdceda5b5f1aUL, 0x0da17115a49741a9UL,
		  0x680bd77c73edad2eUL, 0x487c02354edd9041UL,
	/* 226 */ 0xb8efeff3a70ed9c4UL, 0x56a32aa3e857e302UL,
		  0xdf3a68bd48a2a5a0UL, 0x07f650b73176c444UL,
	/* 227 */ 0xe38b9b1626e0ccb1UL, 0x79e053c18b09fb36UL,
		  0x56d90319c9f94964UL, 0x1ca941e7ac9ff5c4UL,
	/* 228 */ 0x49c4df29162fa0bbUL, 0x8488cf3282b33305UL,
		  0x95dfda14cabb437dUL, 0x3391f78264d5ad86UL,
	/* 229 */ 0x729ae06ae2b5095dUL, 0xd58a58d73259a946UL,
		  0xe9834262d13921edUL, 0x27fedafaa54bb592UL,
	/* 230 */ 0xa99dc5b829ad48bbUL, 0x5f025742499ee260UL,
		  0x802c8ecd5d7513fdUL, 0x78ceb3ef3f6dd938UL,
	/* 231 */ 0xc342f44f8a135d94UL, 0x7b9edb44828cdda3UL,
		  0x9436d11a0537cfe7UL, 0x5064b164ec1ab4c8UL,
	/* 232 */ 0x7020eccfd37eb2fcUL, 0x1f31ea3ed90d25fcUL,
		  0x1b930d7bdfa1bb34UL, 0x5344467a48113044UL,
	/* 233 */ 0x70073170f25e6dfbUL, 0xe385dc1a50114cc8UL,
		  0x2348698ac8fc4f00UL, 0x2a77a55284dd40d8UL,
	/* 234 */ 0xfe06afe0c98c6ce4UL, 0xc235df96dddfd6e4UL,
		  0x1428d01e33bf1ed3UL, 0x785768ec9300bdafUL,
	/* 235 */ 0x9702e57a91deb63bUL, 0x61bdb8bfe5ce8b80UL,
		  0x645b426f3d1d58acUL, 0x4804a82227a557bcUL,
	/* 236 */ 0x8e57048ab44d2601UL, 0x68d6501a4b3a6935UL,
		  0xc39c9ec3f9e1c293UL, 0x4172f257d4de63e2UL,
	/* 237 */ 0xd368b450330c6401UL, 0x040d3017418f2391UL,
		  0x2c34bb6090b7d90dUL, 0x16f649228fdfd51fUL,
	/* 238 */ 0xbea6818e2b928ef5UL, 0xe28ccf91cdc11e72UL,
		  0x594aaa68e77a36cdUL, 0x313034806c7ffd0fUL,
	/* 239 */ 0x8a9d27ac2249bd65UL, 0x19a3b464018e9512UL,
		  0xc26ccff352b37ec7UL, 0x056f68341d797b21UL,
	/* 240 */ 0x5e79d6757efd2327UL, 0xfabdbcb6553afe15UL,
		  0xd3e7222c6eaf5a60UL, 0x7046c76d4dae743bUL,
	/* 241 */ 0x660be872b18d4a55UL, 0x19992518574e1496UL,
		  0xc103053a302bdcbbUL, 0x3ed8e9800b218e8eUL,
	/* 242 */ 0x7b0b9239fa75e03eUL, 0xefe9fb684633c083UL,
		  0x98a35fbe391a7793UL, 0x6065510fe2d0fe34UL,
	/* 243 */ 0x55cb668548abad0cUL, 0xb4584548da87e527UL,
		  0x2c43ecea0107c1ddUL, 0x526028809372de35UL,
	/* 244 */ 0x3415c56af9213b1fUL, 0x5bee1a4d017e98dbUL,
		  0x13f6b105b5cf709bUL, 0x5ff20e3482b29ab6UL,
	/* 245 */ 0x0aa29c75cc2e6c90UL, 0xfc7d73ca3a70e206UL,
		  0x899fc38fc4b5c515UL, 0x250386b124ffc207UL,
	/* 246 */ 0x54ea28d5ae3d2b56UL, 0x9913149dd6de60ceUL,
		  0x16694fc58f06d6c1UL, 0x46b23975eb018fc7UL,
	/* 247 */ 0x470a6a0fb4b7b4e2UL, 0x5d92475a8f7253deUL,
		  0xabeee5b52fbd3adbUL, 0x7fa20801a0806968UL,
	/* 248 */ 0x76f3faf19f7714d2UL, 0xb3e840c12f4660c3UL,
		  0x0fb4cd8df212744eUL, 0x4b065a251d3a2dd2UL,
	/* 249 */ 0x5cebde383d77cd4aUL, 0x6adf39df882c9cb1UL,
		  0xa2dd242eb09af759UL, 0x3147c0e50e5f6422UL,
	/* 250 */ 0x164ca5101d1350dbUL, 0xf8d13479c33fc962UL,
		  0xe640ce4d13e5da08UL, 0x4bdee0c45061f8baUL,
	/* 251 */ 0xd7c46dc1a4edb1c9UL, 0x5514d7b6437fd98aUL,
		  0x58942f6bb2a1c00bUL, 0x2dffb2ab1d70710eUL,
	/* 252 */ 0xccdfcf2fc18b6d68UL, 0xa8ebcba8b7806167UL,
		  0x980697f95e2937e3UL, 0x02fbba1cd0126e8cUL
};

/* c is two 512-bit products: c0[0:7]=a0[0:3]*b0[0:3] and c1[8:15]=a1[4:7]*b1[4:7]
 * a is two 256-bit integers: a0[0:3] and a1[4:7]
 * b is two 256-bit integers: b0[0:3] and b1[4:7]
 */
static void mul2_256x256_integer_adx(u64 *const c, const u64 *const a,
				     const u64 *const b)
{
	asm volatile(
		"xorl %%r14d, %%r14d ;"
		"movq   (%1), %%rdx; "	/* A[0] */
		"mulx   (%2),  %%r8, %%r15; " /* A[0]*B[0] */
		"xorl %%r10d, %%r10d ;"
		"movq %%r8, (%0) ;"
		"mulx  8(%2), %%r10, %%rax; " /* A[0]*B[1] */
		"adox %%r10, %%r15 ;"
		"mulx 16(%2),  %%r8, %%rbx; " /* A[0]*B[2] */
		"adox  %%r8, %%rax ;"
		"mulx 24(%2), %%r10, %%rcx; " /* A[0]*B[3] */
		"adox %%r10, %%rbx ;"
		/******************************************/
		"adox %%r14, %%rcx ;"

		"movq  8(%1), %%rdx; "	/* A[1] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[1]*B[0] */
		"adox %%r15,  %%r8 ;"
		"movq  %%r8, 8(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[1]*B[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rax ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[1]*B[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%rbx ;"
		"mulx 24(%2), %%r10, %%r15; " /* A[1]*B[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%rcx ;"
		/******************************************/
		"adox %%r14, %%r15 ;"
		"adcx %%r14, %%r15 ;"

		"movq 16(%1), %%rdx; " /* A[2] */
		"xorl %%r10d, %%r10d ;"
		"mulx   (%2),  %%r8,  %%r9; " /* A[2]*B[0] */
		"adox %%rax,  %%r8 ;"
		"movq %%r8, 16(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[2]*B[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rbx ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[2]*B[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%rcx ;"
		"mulx 24(%2), %%r10, %%rax; " /* A[2]*B[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%r15 ;"
		/******************************************/
		"adox %%r14, %%rax ;"
		"adcx %%r14, %%rax ;"

		"movq 24(%1), %%rdx; " /* A[3] */
		"xorl %%r10d, %%r10d ;"
		"mulx   (%2),  %%r8,  %%r9; " /* A[3]*B[0] */
		"adox %%rbx,  %%r8 ;"
		"movq %%r8, 24(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[3]*B[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rcx ;"
		"movq %%rcx, 32(%0) ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[3]*B[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"mulx 24(%2), %%r10, %%rbx; " /* A[3]*B[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%rax ;"
		"movq %%rax, 48(%0) ;"
		/******************************************/
		"adox %%r14, %%rbx ;"
		"adcx %%r14, %%rbx ;"
		"movq %%rbx, 56(%0) ;"

		"movq 32(%1), %%rdx; "	/* C[0] */
		"mulx 32(%2),  %%r8, %%r15; " /* C[0]*D[0] */
		"xorl %%r10d, %%r10d ;"
		"movq %%r8, 64(%0);"
		"mulx 40(%2), %%r10, %%rax; " /* C[0]*D[1] */
		"adox %%r10, %%r15 ;"
		"mulx 48(%2),  %%r8, %%rbx; " /* C[0]*D[2] */
		"adox  %%r8, %%rax ;"
		"mulx 56(%2), %%r10, %%rcx; " /* C[0]*D[3] */
		"adox %%r10, %%rbx ;"
		/******************************************/
		"adox %%r14, %%rcx ;"

		"movq 40(%1), %%rdx; " /* C[1] */
		"xorl %%r10d, %%r10d ;"
		"mulx 32(%2),  %%r8,  %%r9; " /* C[1]*D[0] */
		"adox %%r15,  %%r8 ;"
		"movq  %%r8, 72(%0);"
		"mulx 40(%2), %%r10, %%r11; " /* C[1]*D[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rax ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[1]*D[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%rbx ;"
		"mulx 56(%2), %%r10, %%r15; " /* C[1]*D[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%rcx ;"
		/******************************************/
		"adox %%r14, %%r15 ;"
		"adcx %%r14, %%r15 ;"

		"movq 48(%1), %%rdx; " /* C[2] */
		"xorl %%r10d, %%r10d ;"
		"mulx 32(%2),  %%r8,  %%r9; " /* C[2]*D[0] */
		"adox %%rax,  %%r8 ;"
		"movq  %%r8, 80(%0);"
		"mulx 40(%2), %%r10, %%r11; " /* C[2]*D[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rbx ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[2]*D[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%rcx ;"
		"mulx 56(%2), %%r10, %%rax; " /* C[2]*D[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%r15 ;"
		/******************************************/
		"adox %%r14, %%rax ;"
		"adcx %%r14, %%rax ;"

		"movq 56(%1), %%rdx; " /* C[3] */
		"xorl %%r10d, %%r10d ;"
		"mulx 32(%2),  %%r8,  %%r9; " /* C[3]*D[0] */
		"adox %%rbx,  %%r8 ;"
		"movq  %%r8, 88(%0);"
		"mulx 40(%2), %%r10, %%r11; " /* C[3]*D[1] */
		"adox %%r10,  %%r9 ;"
		"adcx  %%r9, %%rcx ;"
		"movq %%rcx,  96(%0) ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[3]*D[2] */
		"adox  %%r8, %%r11 ;"
		"adcx %%r11, %%r15 ;"
		"movq %%r15, 104(%0) ;"
		"mulx 56(%2), %%r10, %%rbx; " /* C[3]*D[3] */
		"adox %%r10, %%r13 ;"
		"adcx %%r13, %%rax ;"
		"movq %%rax, 112(%0) ;"
		/******************************************/
		"adox %%r14, %%rbx ;"
		"adcx %%r14, %%rbx ;"
		"movq %%rbx, 120(%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11", "%r13", "%r14", "%r15");
}

static void mul2_256x256_integer_bmi2(u64 *const c, const u64 *const a,
				      const u64 *const b)
{
	asm volatile(
		"movq   (%1), %%rdx; "	/* A[0] */
		"mulx   (%2),  %%r8, %%r15; " /* A[0]*B[0] */
		"movq %%r8,  (%0) ;"
		"mulx  8(%2), %%r10, %%rax; " /* A[0]*B[1] */
		"addq %%r10, %%r15 ;"
		"mulx 16(%2),  %%r8, %%rbx; " /* A[0]*B[2] */
		"adcq  %%r8, %%rax ;"
		"mulx 24(%2), %%r10, %%rcx; " /* A[0]*B[3] */
		"adcq %%r10, %%rbx ;"
		/******************************************/
		"adcq    $0, %%rcx ;"

		"movq  8(%1), %%rdx; "	/* A[1] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[1]*B[0] */
		"addq %%r15,  %%r8 ;"
		"movq %%r8, 8(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[1]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[1]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%r15; " /* A[1]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%r15 ;"

		"addq  %%r9, %%rax ;"
		"adcq %%r11, %%rbx ;"
		"adcq %%r13, %%rcx ;"
		"adcq    $0, %%r15 ;"

		"movq 16(%1), %%rdx; "	/* A[2] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[2]*B[0] */
		"addq %%rax,  %%r8 ;"
		"movq %%r8, 16(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[2]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[2]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%rax; " /* A[2]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rax ;"

		"addq  %%r9, %%rbx ;"
		"adcq %%r11, %%rcx ;"
		"adcq %%r13, %%r15 ;"
		"adcq    $0, %%rax ;"

		"movq 24(%1), %%rdx; "	/* A[3] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[3]*B[0] */
		"addq %%rbx,  %%r8 ;"
		"movq %%r8, 24(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[3]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[3]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%rbx; " /* A[3]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rbx ;"

		"addq  %%r9, %%rcx ;"
		"movq %%rcx, 32(%0) ;"
		"adcq %%r11, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"adcq %%r13, %%rax ;"
		"movq %%rax, 48(%0) ;"
		"adcq    $0, %%rbx ;"
		"movq %%rbx, 56(%0) ;"

		"movq 32(%1), %%rdx; "	/* C[0] */
		"mulx 32(%2),  %%r8, %%r15; " /* C[0]*D[0] */
		"movq %%r8, 64(%0) ;"
		"mulx 40(%2), %%r10, %%rax; " /* C[0]*D[1] */
		"addq %%r10, %%r15 ;"
		"mulx 48(%2),  %%r8, %%rbx; " /* C[0]*D[2] */
		"adcq  %%r8, %%rax ;"
		"mulx 56(%2), %%r10, %%rcx; " /* C[0]*D[3] */
		"adcq %%r10, %%rbx ;"
		/******************************************/
		"adcq    $0, %%rcx ;"

		"movq 40(%1), %%rdx; "	/* C[1] */
		"mulx 32(%2),  %%r8,  %%r9; " /* C[1]*D[0] */
		"addq %%r15,  %%r8 ;"
		"movq %%r8, 72(%0) ;"
		"mulx 40(%2), %%r10, %%r11; " /* C[1]*D[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[1]*D[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 56(%2), %%r10, %%r15; " /* C[1]*D[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%r15 ;"

		"addq  %%r9, %%rax ;"
		"adcq %%r11, %%rbx ;"
		"adcq %%r13, %%rcx ;"
		"adcq    $0, %%r15 ;"

		"movq 48(%1), %%rdx; "	/* C[2] */
		"mulx 32(%2),  %%r8,  %%r9; " /* C[2]*D[0] */
		"addq %%rax,  %%r8 ;"
		"movq %%r8, 80(%0) ;"
		"mulx 40(%2), %%r10, %%r11; " /* C[2]*D[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[2]*D[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 56(%2), %%r10, %%rax; " /* C[2]*D[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rax ;"

		"addq  %%r9, %%rbx ;"
		"adcq %%r11, %%rcx ;"
		"adcq %%r13, %%r15 ;"
		"adcq    $0, %%rax ;"

		"movq 56(%1), %%rdx; "	/* C[3] */
		"mulx 32(%2),  %%r8,  %%r9; " /* C[3]*D[0] */
		"addq %%rbx,  %%r8 ;"
		"movq %%r8, 88(%0) ;"
		"mulx 40(%2), %%r10, %%r11; " /* C[3]*D[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 48(%2),  %%r8, %%r13; " /* C[3]*D[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 56(%2), %%r10, %%rbx; " /* C[3]*D[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rbx ;"

		"addq  %%r9, %%rcx ;"
		"movq %%rcx,  96(%0) ;"
		"adcq %%r11, %%r15 ;"
		"movq %%r15, 104(%0) ;"
		"adcq %%r13, %%rax ;"
		"movq %%rax, 112(%0) ;"
		"adcq    $0, %%rbx ;"
		"movq %%rbx, 120(%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11", "%r13", "%r15");
}

static void sqr2_256x256_integer_adx(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movq   (%1), %%rdx        ;" /* A[0]      */
		"mulx  8(%1),  %%r8, %%r14 ;" /* A[1]*A[0] */
		"xorl %%r15d, %%r15d;"
		"mulx 16(%1),  %%r9, %%r10 ;" /* A[2]*A[0] */
		"adcx %%r14,  %%r9 ;"
		"mulx 24(%1), %%rax, %%rcx ;" /* A[3]*A[0] */
		"adcx %%rax, %%r10 ;"
		"movq 24(%1), %%rdx        ;" /* A[3]      */
		"mulx  8(%1), %%r11, %%rbx ;" /* A[1]*A[3] */
		"adcx %%rcx, %%r11 ;"
		"mulx 16(%1), %%rax, %%r13 ;" /* A[2]*A[3] */
		"adcx %%rax, %%rbx ;"
		"movq  8(%1), %%rdx        ;" /* A[1]      */
		"adcx %%r15, %%r13 ;"
		"mulx 16(%1), %%rax, %%rcx ;" /* A[2]*A[1] */
		"movq    $0, %%r14 ;"
		/******************************************/
		"adcx %%r15, %%r14 ;"

		"xorl %%r15d, %%r15d;"
		"adox %%rax, %%r10 ;"
		"adcx  %%r8,  %%r8 ;"
		"adox %%rcx, %%r11 ;"
		"adcx  %%r9,  %%r9 ;"
		"adox %%r15, %%rbx ;"
		"adcx %%r10, %%r10 ;"
		"adox %%r15, %%r13 ;"
		"adcx %%r11, %%r11 ;"
		"adox %%r15, %%r14 ;"
		"adcx %%rbx, %%rbx ;"
		"adcx %%r13, %%r13 ;"
		"adcx %%r14, %%r14 ;"

		"movq   (%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[0]^2 */
		/*******************/
		"movq %%rax,  0(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  8(%0) ;"
		"movq  8(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9, 16(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10, 24(%0) ;"
		"movq 16(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11, 32(%0) ;"
		"adcq %%rcx, %%rbx ;"
		"movq %%rbx, 40(%0) ;"
		"movq 24(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 48(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 56(%0) ;"


		"movq 32(%1), %%rdx        ;" /* B[0]      */
		"mulx 40(%1),  %%r8, %%r14 ;" /* B[1]*B[0] */
		"xorl %%r15d, %%r15d;"
		"mulx 48(%1),  %%r9, %%r10 ;" /* B[2]*B[0] */
		"adcx %%r14,  %%r9 ;"
		"mulx 56(%1), %%rax, %%rcx ;" /* B[3]*B[0] */
		"adcx %%rax, %%r10 ;"
		"movq 56(%1), %%rdx        ;" /* B[3]      */
		"mulx 40(%1), %%r11, %%rbx ;" /* B[1]*B[3] */
		"adcx %%rcx, %%r11 ;"
		"mulx 48(%1), %%rax, %%r13 ;" /* B[2]*B[3] */
		"adcx %%rax, %%rbx ;"
		"movq 40(%1), %%rdx        ;" /* B[1]      */
		"adcx %%r15, %%r13 ;"
		"mulx 48(%1), %%rax, %%rcx ;" /* B[2]*B[1] */
		"movq    $0, %%r14 ;"
		/******************************************/
		"adcx %%r15, %%r14 ;"

		"xorl %%r15d, %%r15d;"
		"adox %%rax, %%r10 ;"
		"adcx  %%r8,  %%r8 ;"
		"adox %%rcx, %%r11 ;"
		"adcx  %%r9,  %%r9 ;"
		"adox %%r15, %%rbx ;"
		"adcx %%r10, %%r10 ;"
		"adox %%r15, %%r13 ;"
		"adcx %%r11, %%r11 ;"
		"adox %%r15, %%r14 ;"
		"adcx %%rbx, %%rbx ;"
		"adcx %%r13, %%r13 ;"
		"adcx %%r14, %%r14 ;"

		"movq 32(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* B[0]^2 */
		/*******************/
		"movq %%rax,  64(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  72(%0) ;"
		"movq 40(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* B[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9,  80(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10,  88(%0) ;"
		"movq 48(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* B[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11,  96(%0) ;"
		"adcq %%rcx, %%rbx ;"
		"movq %%rbx, 104(%0) ;"
		"movq 56(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* B[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 112(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 120(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11", "%r13", "%r14", "%r15");
}

static void sqr2_256x256_integer_bmi2(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movq  8(%1), %%rdx        ;" /* A[1]      */
		"mulx   (%1),  %%r8,  %%r9 ;" /* A[0]*A[1] */
		"mulx 16(%1), %%r10, %%r11 ;" /* A[2]*A[1] */
		"mulx 24(%1), %%rcx, %%r14 ;" /* A[3]*A[1] */

		"movq 16(%1), %%rdx        ;" /* A[2]      */
		"mulx 24(%1), %%r15, %%r13 ;" /* A[3]*A[2] */
		"mulx   (%1), %%rax, %%rdx ;" /* A[0]*A[2] */

		"addq %%rax,  %%r9 ;"
		"adcq %%rdx, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq %%r14, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"movq    $0, %%r14 ;"
		"adcq    $0, %%r14 ;"

		"movq   (%1), %%rdx        ;" /* A[0]      */
		"mulx 24(%1), %%rax, %%rcx ;" /* A[0]*A[3] */

		"addq %%rax, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq    $0, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"adcq    $0, %%r14 ;"

		"shldq $1, %%r13, %%r14 ;"
		"shldq $1, %%r15, %%r13 ;"
		"shldq $1, %%r11, %%r15 ;"
		"shldq $1, %%r10, %%r11 ;"
		"shldq $1,  %%r9, %%r10 ;"
		"shldq $1,  %%r8,  %%r9 ;"
		"shlq  $1,  %%r8        ;"

		/*******************/
		"mulx %%rdx, %%rax, %%rcx ; " /* A[0]^2 */
		/*******************/
		"movq %%rax,  0(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  8(%0) ;"
		"movq  8(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* A[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9, 16(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10, 24(%0) ;"
		"movq 16(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* A[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11, 32(%0) ;"
		"adcq %%rcx, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"movq 24(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* A[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 48(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 56(%0) ;"

		"movq 40(%1), %%rdx        ;" /* B[1]      */
		"mulx 32(%1),  %%r8,  %%r9 ;" /* B[0]*B[1] */
		"mulx 48(%1), %%r10, %%r11 ;" /* B[2]*B[1] */
		"mulx 56(%1), %%rcx, %%r14 ;" /* B[3]*B[1] */

		"movq 48(%1), %%rdx        ;" /* B[2]      */
		"mulx 56(%1), %%r15, %%r13 ;" /* B[3]*B[2] */
		"mulx 32(%1), %%rax, %%rdx ;" /* B[0]*B[2] */

		"addq %%rax,  %%r9 ;"
		"adcq %%rdx, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq %%r14, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"movq    $0, %%r14 ;"
		"adcq    $0, %%r14 ;"

		"movq 32(%1), %%rdx        ;" /* B[0]      */
		"mulx 56(%1), %%rax, %%rcx ;" /* B[0]*B[3] */

		"addq %%rax, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq    $0, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"adcq    $0, %%r14 ;"

		"shldq $1, %%r13, %%r14 ;"
		"shldq $1, %%r15, %%r13 ;"
		"shldq $1, %%r11, %%r15 ;"
		"shldq $1, %%r10, %%r11 ;"
		"shldq $1,  %%r9, %%r10 ;"
		"shldq $1,  %%r8,  %%r9 ;"
		"shlq  $1,  %%r8        ;"

		/*******************/
		"mulx %%rdx, %%rax, %%rcx ; " /* B[0]^2 */
		/*******************/
		"movq %%rax,  64(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  72(%0) ;"
		"movq 40(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* B[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9,  80(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10,  88(%0) ;"
		"movq 48(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* B[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11,  96(%0) ;"
		"adcq %%rcx, %%r15 ;"
		"movq %%r15, 104(%0) ;"
		"movq 56(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ; " /* B[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 112(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 120(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10",
		  "%r11", "%r13", "%r14", "%r15");
}

static void red_eltfp25519_2w_adx(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movl    $38, %%edx; "	/* 2*c = 38 = 2^256 */
		"mulx 32(%1),  %%r8, %%r10; " /* c*C[4] */
		"xorl %%ebx, %%ebx ;"
		"adox   (%1),  %%r8 ;"
		"mulx 40(%1),  %%r9, %%r11; " /* c*C[5] */
		"adcx %%r10,  %%r9 ;"
		"adox  8(%1),  %%r9 ;"
		"mulx 48(%1), %%r10, %%rax; " /* c*C[6] */
		"adcx %%r11, %%r10 ;"
		"adox 16(%1), %%r10 ;"
		"mulx 56(%1), %%r11, %%rcx; " /* c*C[7] */
		"adcx %%rax, %%r11 ;"
		"adox 24(%1), %%r11 ;"
		/***************************************/
		"adcx %%rbx, %%rcx ;"
		"adox  %%rbx, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0, of=0 */
		"adcx %%rcx,  %%r8 ;"
		"adcx %%rbx,  %%r9 ;"
		"movq  %%r9,  8(%0) ;"
		"adcx %%rbx, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"adcx %%rbx, %%r11 ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,   (%0) ;"

		"mulx  96(%1),  %%r8, %%r10; " /* c*C[4] */
		"xorl %%ebx, %%ebx ;"
		"adox 64(%1),  %%r8 ;"
		"mulx 104(%1),  %%r9, %%r11; " /* c*C[5] */
		"adcx %%r10,  %%r9 ;"
		"adox 72(%1),  %%r9 ;"
		"mulx 112(%1), %%r10, %%rax; " /* c*C[6] */
		"adcx %%r11, %%r10 ;"
		"adox 80(%1), %%r10 ;"
		"mulx 120(%1), %%r11, %%rcx; " /* c*C[7] */
		"adcx %%rax, %%r11 ;"
		"adox 88(%1), %%r11 ;"
		/****************************************/
		"adcx %%rbx, %%rcx ;"
		"adox  %%rbx, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0, of=0 */
		"adcx %%rcx,  %%r8 ;"
		"adcx %%rbx,  %%r9 ;"
		"movq  %%r9, 40(%0) ;"
		"adcx %%rbx, %%r10 ;"
		"movq %%r10, 48(%0) ;"
		"adcx %%rbx, %%r11 ;"
		"movq %%r11, 56(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8, 32(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11");
}

static void red_eltfp25519_2w_bmi2(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movl    $38, %%edx ; "       /* 2*c = 38 = 2^256 */
		"mulx 32(%1),  %%r8, %%r10 ;" /* c*C[4] */
		"mulx 40(%1),  %%r9, %%r11 ;" /* c*C[5] */
		"addq %%r10,  %%r9 ;"
		"mulx 48(%1), %%r10, %%rax ;" /* c*C[6] */
		"adcq %%r11, %%r10 ;"
		"mulx 56(%1), %%r11, %%rcx ;" /* c*C[7] */
		"adcq %%rax, %%r11 ;"
		/***************************************/
		"adcq    $0, %%rcx ;"
		"addq   (%1),  %%r8 ;"
		"adcq  8(%1),  %%r9 ;"
		"adcq 16(%1), %%r10 ;"
		"adcq 24(%1), %%r11 ;"
		"adcq     $0, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0 */
		"addq %%rcx,  %%r8 ;"
		"adcq    $0,  %%r9 ;"
		"movq  %%r9,  8(%0) ;"
		"adcq    $0, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"adcq    $0, %%r11 ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,   (%0) ;"

		"mulx  96(%1),  %%r8, %%r10 ;" /* c*C[4] */
		"mulx 104(%1),  %%r9, %%r11 ;" /* c*C[5] */
		"addq %%r10,  %%r9 ;"
		"mulx 112(%1), %%r10, %%rax ;" /* c*C[6] */
		"adcq %%r11, %%r10 ;"
		"mulx 120(%1), %%r11, %%rcx ;" /* c*C[7] */
		"adcq %%rax, %%r11 ;"
		/****************************************/
		"adcq    $0, %%rcx ;"
		"addq 64(%1),  %%r8 ;"
		"adcq 72(%1),  %%r9 ;"
		"adcq 80(%1), %%r10 ;"
		"adcq 88(%1), %%r11 ;"
		"adcq     $0, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0 */
		"addq %%rcx,  %%r8 ;"
		"adcq    $0,  %%r9 ;"
		"movq  %%r9, 40(%0) ;"
		"adcq    $0, %%r10 ;"
		"movq %%r10, 48(%0) ;"
		"adcq    $0, %%r11 ;"
		"movq %%r11, 56(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8, 32(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10",
		  "%r11");
}

static void mul_256x256_integer_adx(u64 *const c, const u64 *const a,
				    const u64 *const b)
{
	asm volatile(
		"movq   (%1), %%rdx; "	/* A[0] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[0]*B[0] */
		"xorl %%r10d, %%r10d ;"
		"movq  %%r8,  (%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[0]*B[1] */
		"adox  %%r9, %%r10 ;"
		"movq %%r10, 8(%0) ;"
		"mulx 16(%2), %%r15, %%r13; " /* A[0]*B[2] */
		"adox %%r11, %%r15 ;"
		"mulx 24(%2), %%r14, %%rdx; " /* A[0]*B[3] */
		"adox %%r13, %%r14 ;"
		"movq $0, %%rax ;"
		/******************************************/
		"adox %%rdx, %%rax ;"

		"movq  8(%1), %%rdx; "	/* A[1] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[1]*B[0] */
		"xorl %%r10d, %%r10d ;"
		"adcx 8(%0),  %%r8 ;"
		"movq  %%r8,  8(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[1]*B[1] */
		"adox  %%r9, %%r10 ;"
		"adcx %%r15, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"mulx 16(%2), %%r15, %%r13; " /* A[1]*B[2] */
		"adox %%r11, %%r15 ;"
		"adcx %%r14, %%r15 ;"
		"movq $0, %%r8  ;"
		"mulx 24(%2), %%r14, %%rdx; " /* A[1]*B[3] */
		"adox %%r13, %%r14 ;"
		"adcx %%rax, %%r14 ;"
		"movq $0, %%rax ;"
		/******************************************/
		"adox %%rdx, %%rax ;"
		"adcx  %%r8, %%rax ;"

		"movq 16(%1), %%rdx; "	/* A[2] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[2]*B[0] */
		"xorl %%r10d, %%r10d ;"
		"adcx 16(%0), %%r8 ;"
		"movq  %%r8, 16(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[2]*B[1] */
		"adox  %%r9, %%r10 ;"
		"adcx %%r15, %%r10 ;"
		"movq %%r10, 24(%0) ;"
		"mulx 16(%2), %%r15, %%r13; " /* A[2]*B[2] */
		"adox %%r11, %%r15 ;"
		"adcx %%r14, %%r15 ;"
		"movq $0, %%r8  ;"
		"mulx 24(%2), %%r14, %%rdx; " /* A[2]*B[3] */
		"adox %%r13, %%r14 ;"
		"adcx %%rax, %%r14 ;"
		"movq $0, %%rax ;"
		/******************************************/
		"adox %%rdx, %%rax ;"
		"adcx  %%r8, %%rax ;"

		"movq 24(%1), %%rdx; "	/* A[3] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[3]*B[0] */
		"xorl %%r10d, %%r10d ;"
		"adcx 24(%0), %%r8 ;"
		"movq  %%r8, 24(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[3]*B[1] */
		"adox  %%r9, %%r10 ;"
		"adcx %%r15, %%r10 ;"
		"movq %%r10, 32(%0) ;"
		"mulx 16(%2), %%r15, %%r13; " /* A[3]*B[2] */
		"adox %%r11, %%r15 ;"
		"adcx %%r14, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"movq $0, %%r8  ;"
		"mulx 24(%2), %%r14, %%rdx; " /* A[3]*B[3] */
		"adox %%r13, %%r14 ;"
		"adcx %%rax, %%r14 ;"
		"movq %%r14, 48(%0) ;"
		"movq $0, %%rax ;"
		/******************************************/
		"adox %%rdx, %%rax ;"
		"adcx  %%r8, %%rax ;"
		"movq %%rax, 56(%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11",
		  "%r13", "%r14", "%r15");
}

static void mul_256x256_integer_bmi2(u64 *const c, const u64 *const a,
				     const u64 *const b)
{
	asm volatile(
		"movq   (%1), %%rdx; "	/* A[0] */
		"mulx   (%2),  %%r8, %%r15; " /* A[0]*B[0] */
		"movq %%r8,  (%0) ;"
		"mulx  8(%2), %%r10, %%rax; " /* A[0]*B[1] */
		"addq %%r10, %%r15 ;"
		"mulx 16(%2),  %%r8, %%rbx; " /* A[0]*B[2] */
		"adcq  %%r8, %%rax ;"
		"mulx 24(%2), %%r10, %%rcx; " /* A[0]*B[3] */
		"adcq %%r10, %%rbx ;"
		/******************************************/
		"adcq    $0, %%rcx ;"

		"movq  8(%1), %%rdx; "	/* A[1] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[1]*B[0] */
		"addq %%r15,  %%r8 ;"
		"movq %%r8, 8(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[1]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[1]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%r15; " /* A[1]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%r15 ;"

		"addq  %%r9, %%rax ;"
		"adcq %%r11, %%rbx ;"
		"adcq %%r13, %%rcx ;"
		"adcq    $0, %%r15 ;"

		"movq 16(%1), %%rdx; "	/* A[2] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[2]*B[0] */
		"addq %%rax,  %%r8 ;"
		"movq %%r8, 16(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[2]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[2]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%rax; " /* A[2]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rax ;"

		"addq  %%r9, %%rbx ;"
		"adcq %%r11, %%rcx ;"
		"adcq %%r13, %%r15 ;"
		"adcq    $0, %%rax ;"

		"movq 24(%1), %%rdx; "	/* A[3] */
		"mulx   (%2),  %%r8,  %%r9; " /* A[3]*B[0] */
		"addq %%rbx,  %%r8 ;"
		"movq %%r8, 24(%0) ;"
		"mulx  8(%2), %%r10, %%r11; " /* A[3]*B[1] */
		"adcq %%r10,  %%r9 ;"
		"mulx 16(%2),  %%r8, %%r13; " /* A[3]*B[2] */
		"adcq  %%r8, %%r11 ;"
		"mulx 24(%2), %%r10, %%rbx; " /* A[3]*B[3] */
		"adcq %%r10, %%r13 ;"
		/******************************************/
		"adcq    $0, %%rbx ;"

		"addq  %%r9, %%rcx ;"
		"movq %%rcx, 32(%0) ;"
		"adcq %%r11, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"adcq %%r13, %%rax ;"
		"movq %%rax, 48(%0) ;"
		"adcq    $0, %%rbx ;"
		"movq %%rbx, 56(%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11", "%r13", "%r15");
}

static void sqr_256x256_integer_adx(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movq   (%1), %%rdx        ;" /* A[0]      */
		"mulx  8(%1),  %%r8, %%r14 ;" /* A[1]*A[0] */
		"xorl %%r15d, %%r15d;"
		"mulx 16(%1),  %%r9, %%r10 ;" /* A[2]*A[0] */
		"adcx %%r14,  %%r9 ;"
		"mulx 24(%1), %%rax, %%rcx ;" /* A[3]*A[0] */
		"adcx %%rax, %%r10 ;"
		"movq 24(%1), %%rdx        ;" /* A[3]      */
		"mulx  8(%1), %%r11, %%rbx ;" /* A[1]*A[3] */
		"adcx %%rcx, %%r11 ;"
		"mulx 16(%1), %%rax, %%r13 ;" /* A[2]*A[3] */
		"adcx %%rax, %%rbx ;"
		"movq  8(%1), %%rdx        ;" /* A[1]      */
		"adcx %%r15, %%r13 ;"
		"mulx 16(%1), %%rax, %%rcx ;" /* A[2]*A[1] */
		"movq    $0, %%r14 ;"
		/******************************************/
		"adcx %%r15, %%r14 ;"

		"xorl %%r15d, %%r15d;"
		"adox %%rax, %%r10 ;"
		"adcx  %%r8,  %%r8 ;"
		"adox %%rcx, %%r11 ;"
		"adcx  %%r9,  %%r9 ;"
		"adox %%r15, %%rbx ;"
		"adcx %%r10, %%r10 ;"
		"adox %%r15, %%r13 ;"
		"adcx %%r11, %%r11 ;"
		"adox %%r15, %%r14 ;"
		"adcx %%rbx, %%rbx ;"
		"adcx %%r13, %%r13 ;"
		"adcx %%r14, %%r14 ;"

		"movq   (%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[0]^2 */
		/*******************/
		"movq %%rax,  0(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  8(%0) ;"
		"movq  8(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9, 16(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10, 24(%0) ;"
		"movq 16(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11, 32(%0) ;"
		"adcq %%rcx, %%rbx ;"
		"movq %%rbx, 40(%0) ;"
		"movq 24(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 48(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 56(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11", "%r13", "%r14", "%r15");
}

static void sqr_256x256_integer_bmi2(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movq  8(%1), %%rdx        ;" /* A[1]      */
		"mulx   (%1),  %%r8,  %%r9 ;" /* A[0]*A[1] */
		"mulx 16(%1), %%r10, %%r11 ;" /* A[2]*A[1] */
		"mulx 24(%1), %%rcx, %%r14 ;" /* A[3]*A[1] */

		"movq 16(%1), %%rdx        ;" /* A[2]      */
		"mulx 24(%1), %%r15, %%r13 ;" /* A[3]*A[2] */
		"mulx   (%1), %%rax, %%rdx ;" /* A[0]*A[2] */

		"addq %%rax,  %%r9 ;"
		"adcq %%rdx, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq %%r14, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"movq    $0, %%r14 ;"
		"adcq    $0, %%r14 ;"

		"movq   (%1), %%rdx        ;" /* A[0]      */
		"mulx 24(%1), %%rax, %%rcx ;" /* A[0]*A[3] */

		"addq %%rax, %%r10 ;"
		"adcq %%rcx, %%r11 ;"
		"adcq    $0, %%r15 ;"
		"adcq    $0, %%r13 ;"
		"adcq    $0, %%r14 ;"

		"shldq $1, %%r13, %%r14 ;"
		"shldq $1, %%r15, %%r13 ;"
		"shldq $1, %%r11, %%r15 ;"
		"shldq $1, %%r10, %%r11 ;"
		"shldq $1,  %%r9, %%r10 ;"
		"shldq $1,  %%r8,  %%r9 ;"
		"shlq  $1,  %%r8        ;"

		/*******************/
		"mulx %%rdx, %%rax, %%rcx ;" /* A[0]^2 */
		/*******************/
		"movq %%rax,  0(%0) ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,  8(%0) ;"
		"movq  8(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[1]^2 */
		"adcq %%rax,  %%r9 ;"
		"movq  %%r9, 16(%0) ;"
		"adcq %%rcx, %%r10 ;"
		"movq %%r10, 24(%0) ;"
		"movq 16(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[2]^2 */
		"adcq %%rax, %%r11 ;"
		"movq %%r11, 32(%0) ;"
		"adcq %%rcx, %%r15 ;"
		"movq %%r15, 40(%0) ;"
		"movq 24(%1), %%rdx ;"
		"mulx %%rdx, %%rax, %%rcx ;" /* A[3]^2 */
		"adcq %%rax, %%r13 ;"
		"movq %%r13, 48(%0) ;"
		"adcq %%rcx, %%r14 ;"
		"movq %%r14, 56(%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10",
		  "%r11", "%r13", "%r14", "%r15");
}

static void red_eltfp25519_1w_adx(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movl    $38, %%edx ;"	/* 2*c = 38 = 2^256 */
		"mulx 32(%1),  %%r8, %%r10 ;" /* c*C[4] */
		"xorl %%ebx, %%ebx ;"
		"adox   (%1),  %%r8 ;"
		"mulx 40(%1),  %%r9, %%r11 ;" /* c*C[5] */
		"adcx %%r10,  %%r9 ;"
		"adox  8(%1),  %%r9 ;"
		"mulx 48(%1), %%r10, %%rax ;" /* c*C[6] */
		"adcx %%r11, %%r10 ;"
		"adox 16(%1), %%r10 ;"
		"mulx 56(%1), %%r11, %%rcx ;" /* c*C[7] */
		"adcx %%rax, %%r11 ;"
		"adox 24(%1), %%r11 ;"
		/***************************************/
		"adcx %%rbx, %%rcx ;"
		"adox  %%rbx, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0, of=0 */
		"adcx %%rcx,  %%r8 ;"
		"adcx %%rbx,  %%r9 ;"
		"movq  %%r9,  8(%0) ;"
		"adcx %%rbx, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"adcx %%rbx, %%r11 ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9",
		  "%r10", "%r11");
}

static void red_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a)
{
	asm volatile(
		"movl    $38, %%edx ;"	/* 2*c = 38 = 2^256 */
		"mulx 32(%1),  %%r8, %%r10 ;" /* c*C[4] */
		"mulx 40(%1),  %%r9, %%r11 ;" /* c*C[5] */
		"addq %%r10,  %%r9 ;"
		"mulx 48(%1), %%r10, %%rax ;" /* c*C[6] */
		"adcq %%r11, %%r10 ;"
		"mulx 56(%1), %%r11, %%rcx ;" /* c*C[7] */
		"adcq %%rax, %%r11 ;"
		/***************************************/
		"adcq    $0, %%rcx ;"
		"addq   (%1),  %%r8 ;"
		"adcq  8(%1),  %%r9 ;"
		"adcq 16(%1), %%r10 ;"
		"adcq 24(%1), %%r11 ;"
		"adcq     $0, %%rcx ;"
		"imul %%rdx, %%rcx ;" /* c*C[4], cf=0 */
		"addq %%rcx,  %%r8 ;"
		"adcq    $0,  %%r9 ;"
		"movq  %%r9,  8(%0) ;"
		"adcq    $0, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"adcq    $0, %%r11 ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a)
		: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10",
		  "%r11");
}

static __always_inline void
add_eltfp25519_1w_adx(u64 *const c, const u64 *const a, const u64 *const b)
{
	asm volatile(
		"mov     $38, %%eax ;"
		"xorl  %%ecx, %%ecx ;"
		"movq   (%2),  %%r8 ;"
		"adcx   (%1),  %%r8 ;"
		"movq  8(%2),  %%r9 ;"
		"adcx  8(%1),  %%r9 ;"
		"movq 16(%2), %%r10 ;"
		"adcx 16(%1), %%r10 ;"
		"movq 24(%2), %%r11 ;"
		"adcx 24(%1), %%r11 ;"
		"cmovc %%eax, %%ecx ;"
		"xorl %%eax, %%eax  ;"
		"adcx %%rcx,  %%r8  ;"
		"adcx %%rax,  %%r9  ;"
		"movq  %%r9,  8(%0) ;"
		"adcx %%rax, %%r10  ;"
		"movq %%r10, 16(%0) ;"
		"adcx %%rax, %%r11  ;"
		"movq %%r11, 24(%0) ;"
		"mov     $38, %%ecx ;"
		"cmovc %%ecx, %%eax ;"
		"addq %%rax,  %%r8  ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11");
}

static __always_inline void
add_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a, const u64 *const b)
{
	asm volatile(
		"mov     $38, %%eax ;"
		"movq   (%2),  %%r8 ;"
		"addq   (%1),  %%r8 ;"
		"movq  8(%2),  %%r9 ;"
		"adcq  8(%1),  %%r9 ;"
		"movq 16(%2), %%r10 ;"
		"adcq 16(%1), %%r10 ;"
		"movq 24(%2), %%r11 ;"
		"adcq 24(%1), %%r11 ;"
		"mov      $0, %%ecx ;"
		"cmovc %%eax, %%ecx ;"
		"addq %%rcx,  %%r8  ;"
		"adcq    $0,  %%r9  ;"
		"movq  %%r9,  8(%0) ;"
		"adcq    $0, %%r10  ;"
		"movq %%r10, 16(%0) ;"
		"adcq    $0, %%r11  ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx  ;"
		"cmovc %%eax, %%ecx ;"
		"addq %%rcx,  %%r8  ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11");
}

static __always_inline void
sub_eltfp25519_1w(u64 *const c, const u64 *const a, const u64 *const b)
{
	asm volatile(
		"mov     $38, %%eax ;"
		"movq   (%1),  %%r8 ;"
		"subq   (%2),  %%r8 ;"
		"movq  8(%1),  %%r9 ;"
		"sbbq  8(%2),  %%r9 ;"
		"movq 16(%1), %%r10 ;"
		"sbbq 16(%2), %%r10 ;"
		"movq 24(%1), %%r11 ;"
		"sbbq 24(%2), %%r11 ;"
		"mov      $0, %%ecx ;"
		"cmovc %%eax, %%ecx ;"
		"subq %%rcx,  %%r8  ;"
		"sbbq    $0,  %%r9  ;"
		"movq  %%r9,  8(%0) ;"
		"sbbq    $0, %%r10  ;"
		"movq %%r10, 16(%0) ;"
		"sbbq    $0, %%r11  ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx  ;"
		"cmovc %%eax, %%ecx ;"
		"subq %%rcx,  %%r8  ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a), "r"(b)
		: "memory", "cc", "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11");
}

/* Multiplication by a24 = (A+2)/4 = (486662+2)/4 = 121666 */
static __always_inline void
mul_a24_eltfp25519_1w(u64 *const c, const u64 *const a)
{
	const u64 a24 = 121666;
	asm volatile(
		"movq     %2, %%rdx ;"
		"mulx   (%1),  %%r8, %%r10 ;"
		"mulx  8(%1),  %%r9, %%r11 ;"
		"addq %%r10,  %%r9 ;"
		"mulx 16(%1), %%r10, %%rax ;"
		"adcq %%r11, %%r10 ;"
		"mulx 24(%1), %%r11, %%rcx ;"
		"adcq %%rax, %%r11 ;"
		/**************************/
		"adcq    $0, %%rcx ;"
		"movl   $38, %%edx ;" /* 2*c = 38 = 2^256 mod 2^255-19*/
		"imul %%rdx, %%rcx ;"
		"addq %%rcx,  %%r8 ;"
		"adcq    $0,  %%r9 ;"
		"movq  %%r9,  8(%0) ;"
		"adcq    $0, %%r10 ;"
		"movq %%r10, 16(%0) ;"
		"adcq    $0, %%r11 ;"
		"movq %%r11, 24(%0) ;"
		"mov     $0, %%ecx ;"
		"cmovc %%edx, %%ecx ;"
		"addq %%rcx,  %%r8 ;"
		"movq  %%r8,   (%0) ;"
		:
		: "r"(c), "r"(a), "r"(a24)
		: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10",
		  "%r11");
}

static void inv_eltfp25519_1w_adx(u64 *const c, const u64 *const a)
{
	struct {
		eltfp25519_1w_buffer buffer;
		eltfp25519_1w x0, x1, x2;
	} __aligned(32) m;
	u64 *T[4];

	T[0] = m.x0;
	T[1] = c; /* x^(-1) */
	T[2] = m.x1;
	T[3] = m.x2;

	copy_eltfp25519_1w(T[1], a);
	sqrn_eltfp25519_1w_adx(T[1], 1);
	copy_eltfp25519_1w(T[2], T[1]);
	sqrn_eltfp25519_1w_adx(T[2], 2);
	mul_eltfp25519_1w_adx(T[0], a, T[2]);
	mul_eltfp25519_1w_adx(T[1], T[1], T[0]);
	copy_eltfp25519_1w(T[2], T[1]);
	sqrn_eltfp25519_1w_adx(T[2], 1);
	mul_eltfp25519_1w_adx(T[0], T[0], T[2]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_adx(T[2], 5);
	mul_eltfp25519_1w_adx(T[0], T[0], T[2]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_adx(T[2], 10);
	mul_eltfp25519_1w_adx(T[2], T[2], T[0]);
	copy_eltfp25519_1w(T[3], T[2]);
	sqrn_eltfp25519_1w_adx(T[3], 20);
	mul_eltfp25519_1w_adx(T[3], T[3], T[2]);
	sqrn_eltfp25519_1w_adx(T[3], 10);
	mul_eltfp25519_1w_adx(T[3], T[3], T[0]);
	copy_eltfp25519_1w(T[0], T[3]);
	sqrn_eltfp25519_1w_adx(T[0], 50);
	mul_eltfp25519_1w_adx(T[0], T[0], T[3]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_adx(T[2], 100);
	mul_eltfp25519_1w_adx(T[2], T[2], T[0]);
	sqrn_eltfp25519_1w_adx(T[2], 50);
	mul_eltfp25519_1w_adx(T[2], T[2], T[3]);
	sqrn_eltfp25519_1w_adx(T[2], 5);
	mul_eltfp25519_1w_adx(T[1], T[1], T[2]);

	memzero_explicit(&m, sizeof(m));
}

static void inv_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a)
{
	struct {
		eltfp25519_1w_buffer buffer;
		eltfp25519_1w x0, x1, x2;
	} __aligned(32) m;
	u64 *T[5];

	T[0] = m.x0;
	T[1] = c; /* x^(-1) */
	T[2] = m.x1;
	T[3] = m.x2;

	copy_eltfp25519_1w(T[1], a);
	sqrn_eltfp25519_1w_bmi2(T[1], 1);
	copy_eltfp25519_1w(T[2], T[1]);
	sqrn_eltfp25519_1w_bmi2(T[2], 2);
	mul_eltfp25519_1w_bmi2(T[0], a, T[2]);
	mul_eltfp25519_1w_bmi2(T[1], T[1], T[0]);
	copy_eltfp25519_1w(T[2], T[1]);
	sqrn_eltfp25519_1w_bmi2(T[2], 1);
	mul_eltfp25519_1w_bmi2(T[0], T[0], T[2]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_bmi2(T[2], 5);
	mul_eltfp25519_1w_bmi2(T[0], T[0], T[2]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_bmi2(T[2], 10);
	mul_eltfp25519_1w_bmi2(T[2], T[2], T[0]);
	copy_eltfp25519_1w(T[3], T[2]);
	sqrn_eltfp25519_1w_bmi2(T[3], 20);
	mul_eltfp25519_1w_bmi2(T[3], T[3], T[2]);
	sqrn_eltfp25519_1w_bmi2(T[3], 10);
	mul_eltfp25519_1w_bmi2(T[3], T[3], T[0]);
	copy_eltfp25519_1w(T[0], T[3]);
	sqrn_eltfp25519_1w_bmi2(T[0], 50);
	mul_eltfp25519_1w_bmi2(T[0], T[0], T[3]);
	copy_eltfp25519_1w(T[2], T[0]);
	sqrn_eltfp25519_1w_bmi2(T[2], 100);
	mul_eltfp25519_1w_bmi2(T[2], T[2], T[0]);
	sqrn_eltfp25519_1w_bmi2(T[2], 50);
	mul_eltfp25519_1w_bmi2(T[2], T[2], T[3]);
	sqrn_eltfp25519_1w_bmi2(T[2], 5);
	mul_eltfp25519_1w_bmi2(T[1], T[1], T[2]);

	memzero_explicit(&m, sizeof(m));
}

/* Given c, a 256-bit number, fred_eltfp25519_1w updates c
 * with a number such that 0 <= C < 2**255-19.
 */
static __always_inline void fred_eltfp25519_1w(u64 *const c)
{
	u64 tmp0 = 38, tmp1 = 19;
	asm volatile(
		"btrq   $63,    %3 ;" /* Put bit 255 in carry flag and clear */
		"cmovncl %k5,   %k4 ;" /* c[255] ? 38 : 19 */

		/* Add either 19 or 38 to c */
		"addq    %4,   %0 ;"
		"adcq    $0,   %1 ;"
		"adcq    $0,   %2 ;"
		"adcq    $0,   %3 ;"

		/* Test for bit 255 again; only triggered on overflow modulo 2^255-19 */
		"movl    $0,  %k4 ;"
		"cmovnsl %k5,  %k4 ;" /* c[255] ? 0 : 19 */
		"btrq   $63,   %3 ;" /* Clear bit 255 */

		/* Subtract 19 if necessary */
		"subq    %4,   %0 ;"
		"sbbq    $0,   %1 ;"
		"sbbq    $0,   %2 ;"
		"sbbq    $0,   %3 ;"

		: "+r"(c[0]), "+r"(c[1]), "+r"(c[2]), "+r"(c[3]), "+r"(tmp0),
		  "+r"(tmp1)
		:
		: "memory", "cc");
}

static __always_inline void cswap(u8 bit, u64 *const px, u64 *const py)
{
	u64 temp;
	asm volatile(
		"test %9, %9 ;"
		"movq %0, %8 ;"
		"cmovnzq %4, %0 ;"
		"cmovnzq %8, %4 ;"
		"movq %1, %8 ;"
		"cmovnzq %5, %1 ;"
		"cmovnzq %8, %5 ;"
		"movq %2, %8 ;"
		"cmovnzq %6, %2 ;"
		"cmovnzq %8, %6 ;"
		"movq %3, %8 ;"
		"cmovnzq %7, %3 ;"
		"cmovnzq %8, %7 ;"
		: "+r"(px[0]), "+r"(px[1]), "+r"(px[2]), "+r"(px[3]),
		  "+r"(py[0]), "+r"(py[1]), "+r"(py[2]), "+r"(py[3]),
		  "=r"(temp)
		: "r"(bit)
		: "cc"
	);
}

static __always_inline void cselect(u8 bit, u64 *const px, const u64 *const py)
{
	asm volatile(
		"test %4, %4 ;"
		"cmovnzq %5, %0 ;"
		"cmovnzq %6, %1 ;"
		"cmovnzq %7, %2 ;"
		"cmovnzq %8, %3 ;"
		: "+r"(px[0]), "+r"(px[1]), "+r"(px[2]), "+r"(px[3])
		: "r"(bit), "rm"(py[0]), "rm"(py[1]), "rm"(py[2]), "rm"(py[3])
		: "cc"
	);
}

static void curve25519_adx(u8 shared[CURVE25519_KEY_SIZE],
			   const u8 private_key[CURVE25519_KEY_SIZE],
			   const u8 session_key[CURVE25519_KEY_SIZE])
{
	struct {
		u64 buffer[4 * NUM_WORDS_ELTFP25519];
		u64 coordinates[4 * NUM_WORDS_ELTFP25519];
		u64 workspace[6 * NUM_WORDS_ELTFP25519];
		u8 session[CURVE25519_KEY_SIZE];
		u8 private[CURVE25519_KEY_SIZE];
	} __aligned(32) m;

	int i = 0, j = 0;
	u64 prev = 0;
	u64 *const X1 = (u64 *)m.session;
	u64 *const key = (u64 *)m.private;
	u64 *const Px = m.coordinates + 0;
	u64 *const Pz = m.coordinates + 4;
	u64 *const Qx = m.coordinates + 8;
	u64 *const Qz = m.coordinates + 12;
	u64 *const X2 = Qx;
	u64 *const Z2 = Qz;
	u64 *const X3 = Px;
	u64 *const Z3 = Pz;
	u64 *const X2Z2 = Qx;
	u64 *const X3Z3 = Px;

	u64 *const A = m.workspace + 0;
	u64 *const B = m.workspace + 4;
	u64 *const D = m.workspace + 8;
	u64 *const C = m.workspace + 12;
	u64 *const DA = m.workspace + 16;
	u64 *const CB = m.workspace + 20;
	u64 *const AB = A;
	u64 *const DC = D;
	u64 *const DACB = DA;

	memcpy(m.private, private_key, sizeof(m.private));
	memcpy(m.session, session_key, sizeof(m.session));

	curve25519_clamp_secret(m.private);

	/* As in the draft:
	 * When receiving such an array, implementations of curve25519
	 * MUST mask the most-significant bit in the final byte. This
	 * is done to preserve compatibility with point formats which
	 * reserve the sign bit for use in other protocols and to
	 * increase resistance to implementation fingerprinting
	 */
	m.session[CURVE25519_KEY_SIZE - 1] &= (1 << (255 % 8)) - 1;

	copy_eltfp25519_1w(Px, X1);
	setzero_eltfp25519_1w(Pz);
	setzero_eltfp25519_1w(Qx);
	setzero_eltfp25519_1w(Qz);

	Pz[0] = 1;
	Qx[0] = 1;

	/* main-loop */
	prev = 0;
	j = 62;
	for (i = 3; i >= 0; --i) {
		while (j >= 0) {
			u64 bit = (key[i] >> j) & 0x1;
			u64 swap = bit ^ prev;
			prev = bit;

			add_eltfp25519_1w_adx(A, X2, Z2);	/* A = (X2+Z2) */
			sub_eltfp25519_1w(B, X2, Z2);		/* B = (X2-Z2) */
			add_eltfp25519_1w_adx(C, X3, Z3);	/* C = (X3+Z3) */
			sub_eltfp25519_1w(D, X3, Z3);		/* D = (X3-Z3) */
			mul_eltfp25519_2w_adx(DACB, AB, DC);	/* [DA|CB] = [A|B]*[D|C] */

			cselect(swap, A, C);
			cselect(swap, B, D);

			sqr_eltfp25519_2w_adx(AB);		/* [AA|BB] = [A^2|B^2] */
			add_eltfp25519_1w_adx(X3, DA, CB);	/* X3 = (DA+CB) */
			sub_eltfp25519_1w(Z3, DA, CB);		/* Z3 = (DA-CB) */
			sqr_eltfp25519_2w_adx(X3Z3);		/* [X3|Z3] = [(DA+CB)|(DA+CB)]^2 */

			copy_eltfp25519_1w(X2, B);		/* X2 = B^2 */
			sub_eltfp25519_1w(Z2, A, B);		/* Z2 = E = AA-BB */

			mul_a24_eltfp25519_1w(B, Z2);		/* B = a24*E */
			add_eltfp25519_1w_adx(B, B, X2);	/* B = a24*E+B */
			mul_eltfp25519_2w_adx(X2Z2, X2Z2, AB);	/* [X2|Z2] = [B|E]*[A|a24*E+B] */
			mul_eltfp25519_1w_adx(Z3, Z3, X1);	/* Z3 = Z3*X1 */
			--j;
		}
		j = 63;
	}

	inv_eltfp25519_1w_adx(A, Qz);
	mul_eltfp25519_1w_adx((u64 *)shared, Qx, A);
	fred_eltfp25519_1w((u64 *)shared);

	memzero_explicit(&m, sizeof(m));
}

static void curve25519_adx_base(u8 session_key[CURVE25519_KEY_SIZE],
				const u8 private_key[CURVE25519_KEY_SIZE])
{
	struct {
		u64 buffer[4 * NUM_WORDS_ELTFP25519];
		u64 coordinates[4 * NUM_WORDS_ELTFP25519];
		u64 workspace[4 * NUM_WORDS_ELTFP25519];
		u8 private[CURVE25519_KEY_SIZE];
	} __aligned(32) m;

	const int ite[4] = { 64, 64, 64, 63 };
	const int q = 3;
	u64 swap = 1;

	int i = 0, j = 0, k = 0;
	u64 *const key = (u64 *)m.private;
	u64 *const Ur1 = m.coordinates + 0;
	u64 *const Zr1 = m.coordinates + 4;
	u64 *const Ur2 = m.coordinates + 8;
	u64 *const Zr2 = m.coordinates + 12;

	u64 *const UZr1 = m.coordinates + 0;
	u64 *const ZUr2 = m.coordinates + 8;

	u64 *const A = m.workspace + 0;
	u64 *const B = m.workspace + 4;
	u64 *const C = m.workspace + 8;
	u64 *const D = m.workspace + 12;

	u64 *const AB = m.workspace + 0;
	u64 *const CD = m.workspace + 8;

	const u64 *const P = table_ladder_8k;

	memcpy(m.private, private_key, sizeof(m.private));

	curve25519_clamp_secret(m.private);

	setzero_eltfp25519_1w(Ur1);
	setzero_eltfp25519_1w(Zr1);
	setzero_eltfp25519_1w(Zr2);
	Ur1[0] = 1;
	Zr1[0] = 1;
	Zr2[0] = 1;

	/* G-S */
	Ur2[3] = 0x1eaecdeee27cab34UL;
	Ur2[2] = 0xadc7a0b9235d48e2UL;
	Ur2[1] = 0xbbf095ae14b2edf8UL;
	Ur2[0] = 0x7e94e1fec82faabdUL;

	/* main-loop */
	j = q;
	for (i = 0; i < NUM_WORDS_ELTFP25519; ++i) {
		while (j < ite[i]) {
			u64 bit = (key[i] >> j) & 0x1;
			k = (64 * i + j - q);
			swap = swap ^ bit;
			cswap(swap, Ur1, Ur2);
			cswap(swap, Zr1, Zr2);
			swap = bit;
			/* Addition */
			sub_eltfp25519_1w(B, Ur1, Zr1);		/* B = Ur1-Zr1 */
			add_eltfp25519_1w_adx(A, Ur1, Zr1);	/* A = Ur1+Zr1 */
			mul_eltfp25519_1w_adx(C, &P[4 * k], B);	/* C = M0-B */
			sub_eltfp25519_1w(B, A, C);		/* B = (Ur1+Zr1) - M*(Ur1-Zr1) */
			add_eltfp25519_1w_adx(A, A, C);		/* A = (Ur1+Zr1) + M*(Ur1-Zr1) */
			sqr_eltfp25519_2w_adx(AB);		/* A = A^2      |  B = B^2 */
			mul_eltfp25519_2w_adx(UZr1, ZUr2, AB);	/* Ur1 = Zr2*A  |  Zr1 = Ur2*B */
			++j;
		}
		j = 0;
	}

	/* Doubling */
	for (i = 0; i < q; ++i) {
		add_eltfp25519_1w_adx(A, Ur1, Zr1);	/*  A = Ur1+Zr1 */
		sub_eltfp25519_1w(B, Ur1, Zr1);		/*  B = Ur1-Zr1 */
		sqr_eltfp25519_2w_adx(AB);		/*  A = A**2     B = B**2 */
		copy_eltfp25519_1w(C, B);		/*  C = B */
		sub_eltfp25519_1w(B, A, B);		/*  B = A-B */
		mul_a24_eltfp25519_1w(D, B);		/*  D = my_a24*B */
		add_eltfp25519_1w_adx(D, D, C);		/*  D = D+C */
		mul_eltfp25519_2w_adx(UZr1, AB, CD);	/*  Ur1 = A*B   Zr1 = Zr1*A */
	}

	/* Convert to affine coordinates */
	inv_eltfp25519_1w_adx(A, Zr1);
	mul_eltfp25519_1w_adx((u64 *)session_key, Ur1, A);
	fred_eltfp25519_1w((u64 *)session_key);

	memzero_explicit(&m, sizeof(m));
}

static void curve25519_bmi2(u8 shared[CURVE25519_KEY_SIZE],
			    const u8 private_key[CURVE25519_KEY_SIZE],
			    const u8 session_key[CURVE25519_KEY_SIZE])
{
	struct {
		u64 buffer[4 * NUM_WORDS_ELTFP25519];
		u64 coordinates[4 * NUM_WORDS_ELTFP25519];
		u64 workspace[6 * NUM_WORDS_ELTFP25519];
		u8 session[CURVE25519_KEY_SIZE];
		u8 private[CURVE25519_KEY_SIZE];
	} __aligned(32) m;

	int i = 0, j = 0;
	u64 prev = 0;
	u64 *const X1 = (u64 *)m.session;
	u64 *const key = (u64 *)m.private;
	u64 *const Px = m.coordinates + 0;
	u64 *const Pz = m.coordinates + 4;
	u64 *const Qx = m.coordinates + 8;
	u64 *const Qz = m.coordinates + 12;
	u64 *const X2 = Qx;
	u64 *const Z2 = Qz;
	u64 *const X3 = Px;
	u64 *const Z3 = Pz;
	u64 *const X2Z2 = Qx;
	u64 *const X3Z3 = Px;

	u64 *const A = m.workspace + 0;
	u64 *const B = m.workspace + 4;
	u64 *const D = m.workspace + 8;
	u64 *const C = m.workspace + 12;
	u64 *const DA = m.workspace + 16;
	u64 *const CB = m.workspace + 20;
	u64 *const AB = A;
	u64 *const DC = D;
	u64 *const DACB = DA;

	memcpy(m.private, private_key, sizeof(m.private));
	memcpy(m.session, session_key, sizeof(m.session));

	curve25519_clamp_secret(m.private);

	/* As in the draft:
	 * When receiving such an array, implementations of curve25519
	 * MUST mask the most-significant bit in the final byte. This
	 * is done to preserve compatibility with point formats which
	 * reserve the sign bit for use in other protocols and to
	 * increase resistance to implementation fingerprinting
	 */
	m.session[CURVE25519_KEY_SIZE - 1] &= (1 << (255 % 8)) - 1;

	copy_eltfp25519_1w(Px, X1);
	setzero_eltfp25519_1w(Pz);
	setzero_eltfp25519_1w(Qx);
	setzero_eltfp25519_1w(Qz);

	Pz[0] = 1;
	Qx[0] = 1;

	/* main-loop */
	prev = 0;
	j = 62;
	for (i = 3; i >= 0; --i) {
		while (j >= 0) {
			u64 bit = (key[i] >> j) & 0x1;
			u64 swap = bit ^ prev;
			prev = bit;

			add_eltfp25519_1w_bmi2(A, X2, Z2);	/* A = (X2+Z2) */
			sub_eltfp25519_1w(B, X2, Z2);		/* B = (X2-Z2) */
			add_eltfp25519_1w_bmi2(C, X3, Z3);	/* C = (X3+Z3) */
			sub_eltfp25519_1w(D, X3, Z3);		/* D = (X3-Z3) */
			mul_eltfp25519_2w_bmi2(DACB, AB, DC);	/* [DA|CB] = [A|B]*[D|C] */

			cselect(swap, A, C);
			cselect(swap, B, D);

			sqr_eltfp25519_2w_bmi2(AB);		/* [AA|BB] = [A^2|B^2] */
			add_eltfp25519_1w_bmi2(X3, DA, CB);	/* X3 = (DA+CB) */
			sub_eltfp25519_1w(Z3, DA, CB);		/* Z3 = (DA-CB) */
			sqr_eltfp25519_2w_bmi2(X3Z3);		/* [X3|Z3] = [(DA+CB)|(DA+CB)]^2 */

			copy_eltfp25519_1w(X2, B);		/* X2 = B^2 */
			sub_eltfp25519_1w(Z2, A, B);		/* Z2 = E = AA-BB */

			mul_a24_eltfp25519_1w(B, Z2);		/* B = a24*E */
			add_eltfp25519_1w_bmi2(B, B, X2);	/* B = a24*E+B */
			mul_eltfp25519_2w_bmi2(X2Z2, X2Z2, AB);	/* [X2|Z2] = [B|E]*[A|a24*E+B] */
			mul_eltfp25519_1w_bmi2(Z3, Z3, X1);	/* Z3 = Z3*X1 */
			--j;
		}
		j = 63;
	}

	inv_eltfp25519_1w_bmi2(A, Qz);
	mul_eltfp25519_1w_bmi2((u64 *)shared, Qx, A);
	fred_eltfp25519_1w((u64 *)shared);

	memzero_explicit(&m, sizeof(m));
}

static void curve25519_bmi2_base(u8 session_key[CURVE25519_KEY_SIZE],
				 const u8 private_key[CURVE25519_KEY_SIZE])
{
	struct {
		u64 buffer[4 * NUM_WORDS_ELTFP25519];
		u64 coordinates[4 * NUM_WORDS_ELTFP25519];
		u64 workspace[4 * NUM_WORDS_ELTFP25519];
		u8 private[CURVE25519_KEY_SIZE];
	} __aligned(32) m;

	const int ite[4] = { 64, 64, 64, 63 };
	const int q = 3;
	u64 swap = 1;

	int i = 0, j = 0, k = 0;
	u64 *const key = (u64 *)m.private;
	u64 *const Ur1 = m.coordinates + 0;
	u64 *const Zr1 = m.coordinates + 4;
	u64 *const Ur2 = m.coordinates + 8;
	u64 *const Zr2 = m.coordinates + 12;

	u64 *const UZr1 = m.coordinates + 0;
	u64 *const ZUr2 = m.coordinates + 8;

	u64 *const A = m.workspace + 0;
	u64 *const B = m.workspace + 4;
	u64 *const C = m.workspace + 8;
	u64 *const D = m.workspace + 12;

	u64 *const AB = m.workspace + 0;
	u64 *const CD = m.workspace + 8;

	const u64 *const P = table_ladder_8k;

	memcpy(m.private, private_key, sizeof(m.private));

	curve25519_clamp_secret(m.private);

	setzero_eltfp25519_1w(Ur1);
	setzero_eltfp25519_1w(Zr1);
	setzero_eltfp25519_1w(Zr2);
	Ur1[0] = 1;
	Zr1[0] = 1;
	Zr2[0] = 1;

	/* G-S */
	Ur2[3] = 0x1eaecdeee27cab34UL;
	Ur2[2] = 0xadc7a0b9235d48e2UL;
	Ur2[1] = 0xbbf095ae14b2edf8UL;
	Ur2[0] = 0x7e94e1fec82faabdUL;

	/* main-loop */
	j = q;
	for (i = 0; i < NUM_WORDS_ELTFP25519; ++i) {
		while (j < ite[i]) {
			u64 bit = (key[i] >> j) & 0x1;
			k = (64 * i + j - q);
			swap = swap ^ bit;
			cswap(swap, Ur1, Ur2);
			cswap(swap, Zr1, Zr2);
			swap = bit;
			/* Addition */
			sub_eltfp25519_1w(B, Ur1, Zr1);		/* B = Ur1-Zr1 */
			add_eltfp25519_1w_bmi2(A, Ur1, Zr1);	/* A = Ur1+Zr1 */
			mul_eltfp25519_1w_bmi2(C, &P[4 * k], B);/* C = M0-B */
			sub_eltfp25519_1w(B, A, C);		/* B = (Ur1+Zr1) - M*(Ur1-Zr1) */
			add_eltfp25519_1w_bmi2(A, A, C);	/* A = (Ur1+Zr1) + M*(Ur1-Zr1) */
			sqr_eltfp25519_2w_bmi2(AB);		/* A = A^2      |  B = B^2 */
			mul_eltfp25519_2w_bmi2(UZr1, ZUr2, AB);	/* Ur1 = Zr2*A  |  Zr1 = Ur2*B */
			++j;
		}
		j = 0;
	}

	/* Doubling */
	for (i = 0; i < q; ++i) {
		add_eltfp25519_1w_bmi2(A, Ur1, Zr1);	/*  A = Ur1+Zr1 */
		sub_eltfp25519_1w(B, Ur1, Zr1);		/*  B = Ur1-Zr1 */
		sqr_eltfp25519_2w_bmi2(AB);		/*  A = A**2     B = B**2 */
		copy_eltfp25519_1w(C, B);		/*  C = B */
		sub_eltfp25519_1w(B, A, B);		/*  B = A-B */
		mul_a24_eltfp25519_1w(D, B);		/*  D = my_a24*B */
		add_eltfp25519_1w_bmi2(D, D, C);	/*  D = D+C */
		mul_eltfp25519_2w_bmi2(UZr1, AB, CD);	/*  Ur1 = A*B   Zr1 = Zr1*A */
	}

	/* Convert to affine coordinates */
	inv_eltfp25519_1w_bmi2(A, Zr1);
	mul_eltfp25519_1w_bmi2((u64 *)session_key, Ur1, A);
	fred_eltfp25519_1w((u64 *)session_key);

	memzero_explicit(&m, sizeof(m));
}

void curve25519_arch(u8 mypublic[CURVE25519_KEY_SIZE],
		     const u8 secret[CURVE25519_KEY_SIZE],
		     const u8 basepoint[CURVE25519_KEY_SIZE])
{
	if (static_branch_likely(&curve25519_use_adx))
		curve25519_adx(mypublic, secret, basepoint);
	else if (static_branch_likely(&curve25519_use_bmi2))
		curve25519_bmi2(mypublic, secret, basepoint);
	else
		curve25519_generic(mypublic, secret, basepoint);
}
EXPORT_SYMBOL(curve25519_arch);

void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
			  const u8 secret[CURVE25519_KEY_SIZE])
{
	if (static_branch_likely(&curve25519_use_adx))
		curve25519_adx_base(pub, secret);
	else if (static_branch_likely(&curve25519_use_bmi2))
		curve25519_bmi2_base(pub, secret);
	else
		curve25519_generic(pub, secret, curve25519_base_point);
}
EXPORT_SYMBOL(curve25519_base_arch);

static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
				 unsigned int len)
{
	u8 *secret = kpp_tfm_ctx(tfm);

	if (!len)
		curve25519_generate_secret(secret);
	else if (len == CURVE25519_KEY_SIZE &&
		 crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
		memcpy(secret, buf, CURVE25519_KEY_SIZE);
	else
		return -EINVAL;
	return 0;
}

static int curve25519_generate_public_key(struct kpp_request *req)
{
	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
	const u8 *secret = kpp_tfm_ctx(tfm);
	u8 buf[CURVE25519_KEY_SIZE];
	int copied, nbytes;

	if (req->src)
		return -EINVAL;

	curve25519_base_arch(buf, secret);

	/* might want less than we've got */
	nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
	copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
								nbytes),
				     buf, nbytes);
	if (copied != nbytes)
		return -EINVAL;
	return 0;
}

static int curve25519_compute_shared_secret(struct kpp_request *req)
{
	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
	const u8 *secret = kpp_tfm_ctx(tfm);
	u8 public_key[CURVE25519_KEY_SIZE];
	u8 buf[CURVE25519_KEY_SIZE];
	int copied, nbytes;

	if (!req->src)
		return -EINVAL;

	copied = sg_copy_to_buffer(req->src,
				   sg_nents_for_len(req->src,
						    CURVE25519_KEY_SIZE),
				   public_key, CURVE25519_KEY_SIZE);
	if (copied != CURVE25519_KEY_SIZE)
		return -EINVAL;

	curve25519_arch(buf, secret, public_key);

	/* might want less than we've got */
	nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
	copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
								nbytes),
				     buf, nbytes);
	if (copied != nbytes)
		return -EINVAL;
	return 0;
}

static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
{
	return CURVE25519_KEY_SIZE;
}

static struct kpp_alg curve25519_alg = {
	.base.cra_name		= "curve25519",
	.base.cra_driver_name	= "curve25519-x86",
	.base.cra_priority	= 200,
	.base.cra_module	= THIS_MODULE,
	.base.cra_ctxsize	= CURVE25519_KEY_SIZE,

	.set_secret		= curve25519_set_secret,
	.generate_public_key	= curve25519_generate_public_key,
	.compute_shared_secret	= curve25519_compute_shared_secret,
	.max_size		= curve25519_max_size,
};

static int __init curve25519_mod_init(void)
{
	if (boot_cpu_has(X86_FEATURE_BMI2))
		static_branch_enable(&curve25519_use_bmi2);
	else if (boot_cpu_has(X86_FEATURE_ADX))
		static_branch_enable(&curve25519_use_adx);
	else
		return 0;
	return IS_REACHABLE(CONFIG_CRYPTO_KPP) ?
		crypto_register_kpp(&curve25519_alg) : 0;
}

static void __exit curve25519_mod_exit(void)
{
	if (IS_REACHABLE(CONFIG_CRYPTO_KPP) &&
	    (boot_cpu_has(X86_FEATURE_BMI2) || boot_cpu_has(X86_FEATURE_ADX)))
		crypto_unregister_kpp(&curve25519_alg);
}

module_init(curve25519_mod_init);
module_exit(curve25519_mod_exit);

MODULE_ALIAS_CRYPTO("curve25519");
MODULE_ALIAS_CRYPTO("curve25519-x86");
MODULE_LICENSE("GPL v2");