fiat_crypto/
p521_64.rs

1//! Autogenerated: 'src/ExtractionOCaml/unsaturated_solinas' --lang Rust --inline p521 64 '(auto)' '2^521 - 1' carry_mul carry_square carry add sub opp selectznz to_bytes from_bytes relax
2//! curve description: p521
3//! machine_wordsize = 64 (from "64")
4//! requested operations: carry_mul, carry_square, carry, add, sub, opp, selectznz, to_bytes, from_bytes, relax
5//! n = 9 (from "(auto)")
6//! s-c = 2^521 - [(1, 1)] (from "2^521 - 1")
7//! tight_bounds_multiplier = 1 (from "")
8//!
9//! Computed values:
10//!   carry_chain = [0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1]
11//!   eval z = z[0] + (z[1] << 58) + (z[2] << 116) + (z[3] << 174) + (z[4] << 232) + (z[5] << 0x122) + (z[6] << 0x15c) + (z[7] << 0x196) + (z[8] << 0x1d0)
12//!   bytes_eval z = z[0] + (z[1] << 8) + (z[2] << 16) + (z[3] << 24) + (z[4] << 32) + (z[5] << 40) + (z[6] << 48) + (z[7] << 56) + (z[8] << 64) + (z[9] << 72) + (z[10] << 80) + (z[11] << 88) + (z[12] << 96) + (z[13] << 104) + (z[14] << 112) + (z[15] << 120) + (z[16] << 128) + (z[17] << 136) + (z[18] << 144) + (z[19] << 152) + (z[20] << 160) + (z[21] << 168) + (z[22] << 176) + (z[23] << 184) + (z[24] << 192) + (z[25] << 200) + (z[26] << 208) + (z[27] << 216) + (z[28] << 224) + (z[29] << 232) + (z[30] << 240) + (z[31] << 248) + (z[32] << 256) + (z[33] << 0x108) + (z[34] << 0x110) + (z[35] << 0x118) + (z[36] << 0x120) + (z[37] << 0x128) + (z[38] << 0x130) + (z[39] << 0x138) + (z[40] << 0x140) + (z[41] << 0x148) + (z[42] << 0x150) + (z[43] << 0x158) + (z[44] << 0x160) + (z[45] << 0x168) + (z[46] << 0x170) + (z[47] << 0x178) + (z[48] << 0x180) + (z[49] << 0x188) + (z[50] << 0x190) + (z[51] << 0x198) + (z[52] << 0x1a0) + (z[53] << 0x1a8) + (z[54] << 0x1b0) + (z[55] << 0x1b8) + (z[56] << 0x1c0) + (z[57] << 0x1c8) + (z[58] << 0x1d0) + (z[59] << 0x1d8) + (z[60] << 0x1e0) + (z[61] << 0x1e8) + (z[62] << 0x1f0) + (z[63] << 0x1f8) + (z[64] << 2^9) + (z[65] << 0x208)
13//!   balance = [0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x7fffffffffffffe, 0x3fffffffffffffe]
14
15#![allow(unused_parens)]
16#![allow(non_camel_case_types)]
17
18/// Since `Index` and `IndexMut` aren't callable in `const` contexts yet, this helper type helps unify
19/// arrays and user-defined array-wrapper types into a single type which can be indexed in `const`
20/// contexts. Once `const trait`s are stabilized this type can go away
21struct IndexConst<T: ?Sized>(T);
22
23impl<'a, T, const N: usize> IndexConst<&'a [T; N]> {
24    #[inline(always)]
25    #[allow(unused)]
26    const fn index(self, i: usize) -> &'a T {
27        &self.0[i]
28    }
29}
30impl<'a, 'b, T, const N: usize> IndexConst<&'a mut &'b mut [T; N]> {
31    #[inline(always)]
32    #[allow(unused)]
33    const fn index_mut(self, i: usize) -> &'a mut T {
34        &mut self.0[i]
35    }
36}
37
38/** fiat_p521_u1 represents values of 1 bits, stored in one byte. */
39pub type fiat_p521_u1 = u8;
40/** fiat_p521_i1 represents values of 1 bits, stored in one byte. */
41pub type fiat_p521_i1 = i8;
42/** fiat_p521_u2 represents values of 2 bits, stored in one byte. */
43pub type fiat_p521_u2 = u8;
44/** fiat_p521_i2 represents values of 2 bits, stored in one byte. */
45pub type fiat_p521_i2 = i8;
46
47/** The type fiat_p521_loose_field_element is a field element with loose bounds. */
48/** Bounds: [[0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0xc00000000000000], [0x0 ~> 0x600000000000000]] */
49#[derive(Clone, Copy)]
50pub struct fiat_p521_loose_field_element(pub [u64; 9]);
51
52impl core::ops::Index<usize> for fiat_p521_loose_field_element {
53    type Output = u64;
54    #[inline]
55    fn index(&self, index: usize) -> &Self::Output {
56        &self.0[index]
57    }
58}
59
60impl core::ops::IndexMut<usize> for fiat_p521_loose_field_element {
61    #[inline]
62    fn index_mut(&mut self, index: usize) -> &mut Self::Output {
63        &mut self.0[index]
64    }
65}
66
67impl<'a> IndexConst<&'a fiat_p521_loose_field_element> {
68    #[allow(unused)]
69    #[inline(always)]
70    const fn index(self, i: usize) -> &'a u64 {
71        &self.0.0[i]
72    }
73}
74
75impl<'a, 'b> IndexConst<&'a mut &'b mut fiat_p521_loose_field_element> {
76    #[allow(unused)]
77    #[inline(always)]
78    const fn index_mut(self, i: usize) -> &'a mut u64 {
79        &mut self.0.0[i]
80    }
81}
82
83/** The type fiat_p521_tight_field_element is a field element with tight bounds. */
84/** Bounds: [[0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x400000000000000], [0x0 ~> 0x200000000000000]] */
85#[derive(Clone, Copy)]
86pub struct fiat_p521_tight_field_element(pub [u64; 9]);
87
88impl core::ops::Index<usize> for fiat_p521_tight_field_element {
89    type Output = u64;
90    #[inline]
91    fn index(&self, index: usize) -> &Self::Output {
92        &self.0[index]
93    }
94}
95
96impl core::ops::IndexMut<usize> for fiat_p521_tight_field_element {
97    #[inline]
98    fn index_mut(&mut self, index: usize) -> &mut Self::Output {
99        &mut self.0[index]
100    }
101}
102
103impl<'a> IndexConst<&'a fiat_p521_tight_field_element> {
104    #[allow(unused)]
105    #[inline(always)]
106    const fn index(self, i: usize) -> &'a u64 {
107        &self.0.0[i]
108    }
109}
110
111impl<'a, 'b> IndexConst<&'a mut &'b mut fiat_p521_tight_field_element> {
112    #[allow(unused)]
113    #[inline(always)]
114    const fn index_mut(self, i: usize) -> &'a mut u64 {
115        &mut self.0.0[i]
116    }
117}
118
119
120/// The function fiat_p521_addcarryx_u58 is an addition with carry.
121///
122/// Postconditions:
123///   out1 = (arg1 + arg2 + arg3) mod 2^58
124///   out2 = ⌊(arg1 + arg2 + arg3) / 2^58⌋
125///
126/// Input Bounds:
127///   arg1: [0x0 ~> 0x1]
128///   arg2: [0x0 ~> 0x3ffffffffffffff]
129///   arg3: [0x0 ~> 0x3ffffffffffffff]
130/// Output Bounds:
131///   out1: [0x0 ~> 0x3ffffffffffffff]
132///   out2: [0x0 ~> 0x1]
133#[inline]
134pub const fn fiat_p521_addcarryx_u58(out1: &mut u64, out2: &mut fiat_p521_u1, arg1: fiat_p521_u1, arg2: u64, arg3: u64) {
135  let x1: u64 = (((arg1 as u64) + arg2) + arg3);
136  let x2: u64 = (x1 & 0x3ffffffffffffff);
137  let x3: fiat_p521_u1 = ((x1 >> 58) as fiat_p521_u1);
138  *out1 = x2;
139  *out2 = x3;
140}
141
142/// The function fiat_p521_subborrowx_u58 is a subtraction with borrow.
143///
144/// Postconditions:
145///   out1 = (-arg1 + arg2 + -arg3) mod 2^58
146///   out2 = -⌊(-arg1 + arg2 + -arg3) / 2^58⌋
147///
148/// Input Bounds:
149///   arg1: [0x0 ~> 0x1]
150///   arg2: [0x0 ~> 0x3ffffffffffffff]
151///   arg3: [0x0 ~> 0x3ffffffffffffff]
152/// Output Bounds:
153///   out1: [0x0 ~> 0x3ffffffffffffff]
154///   out2: [0x0 ~> 0x1]
155#[inline]
156pub const fn fiat_p521_subborrowx_u58(out1: &mut u64, out2: &mut fiat_p521_u1, arg1: fiat_p521_u1, arg2: u64, arg3: u64) {
157  let x1: i64 = ((((((arg2 as i128) - (arg1 as i128)) as i64) as i128) - (arg3 as i128)) as i64);
158  let x2: fiat_p521_i1 = ((x1 >> 58) as fiat_p521_i1);
159  let x3: u64 = (((x1 as i128) & (0x3ffffffffffffff as i128)) as u64);
160  *out1 = x3;
161  *out2 = (((0x0 as fiat_p521_i2) - (x2 as fiat_p521_i2)) as fiat_p521_u1);
162}
163
164/// The function fiat_p521_addcarryx_u57 is an addition with carry.
165///
166/// Postconditions:
167///   out1 = (arg1 + arg2 + arg3) mod 2^57
168///   out2 = ⌊(arg1 + arg2 + arg3) / 2^57⌋
169///
170/// Input Bounds:
171///   arg1: [0x0 ~> 0x1]
172///   arg2: [0x0 ~> 0x1ffffffffffffff]
173///   arg3: [0x0 ~> 0x1ffffffffffffff]
174/// Output Bounds:
175///   out1: [0x0 ~> 0x1ffffffffffffff]
176///   out2: [0x0 ~> 0x1]
177#[inline]
178pub const fn fiat_p521_addcarryx_u57(out1: &mut u64, out2: &mut fiat_p521_u1, arg1: fiat_p521_u1, arg2: u64, arg3: u64) {
179  let x1: u64 = (((arg1 as u64) + arg2) + arg3);
180  let x2: u64 = (x1 & 0x1ffffffffffffff);
181  let x3: fiat_p521_u1 = ((x1 >> 57) as fiat_p521_u1);
182  *out1 = x2;
183  *out2 = x3;
184}
185
186/// The function fiat_p521_subborrowx_u57 is a subtraction with borrow.
187///
188/// Postconditions:
189///   out1 = (-arg1 + arg2 + -arg3) mod 2^57
190///   out2 = -⌊(-arg1 + arg2 + -arg3) / 2^57⌋
191///
192/// Input Bounds:
193///   arg1: [0x0 ~> 0x1]
194///   arg2: [0x0 ~> 0x1ffffffffffffff]
195///   arg3: [0x0 ~> 0x1ffffffffffffff]
196/// Output Bounds:
197///   out1: [0x0 ~> 0x1ffffffffffffff]
198///   out2: [0x0 ~> 0x1]
199#[inline]
200pub const fn fiat_p521_subborrowx_u57(out1: &mut u64, out2: &mut fiat_p521_u1, arg1: fiat_p521_u1, arg2: u64, arg3: u64) {
201  let x1: i64 = ((((((arg2 as i128) - (arg1 as i128)) as i64) as i128) - (arg3 as i128)) as i64);
202  let x2: fiat_p521_i1 = ((x1 >> 57) as fiat_p521_i1);
203  let x3: u64 = (((x1 as i128) & (0x1ffffffffffffff as i128)) as u64);
204  *out1 = x3;
205  *out2 = (((0x0 as fiat_p521_i2) - (x2 as fiat_p521_i2)) as fiat_p521_u1);
206}
207
208/// The function fiat_p521_cmovznz_u64 is a single-word conditional move.
209///
210/// Postconditions:
211///   out1 = (if arg1 = 0 then arg2 else arg3)
212///
213/// Input Bounds:
214///   arg1: [0x0 ~> 0x1]
215///   arg2: [0x0 ~> 0xffffffffffffffff]
216///   arg3: [0x0 ~> 0xffffffffffffffff]
217/// Output Bounds:
218///   out1: [0x0 ~> 0xffffffffffffffff]
219#[inline]
220pub const fn fiat_p521_cmovznz_u64(out1: &mut u64, arg1: fiat_p521_u1, arg2: u64, arg3: u64) {
221  let x1: fiat_p521_u1 = (!(!arg1));
222  let x2: u64 = ((((((0x0 as fiat_p521_i2) - (x1 as fiat_p521_i2)) as fiat_p521_i1) as i128) & (0xffffffffffffffff as i128)) as u64);
223  let x3: u64 = ((x2 & arg3) | ((!x2) & arg2));
224  *out1 = x3;
225}
226
227/// The function fiat_p521_carry_mul multiplies two field elements and reduces the result.
228///
229/// Postconditions:
230///   eval out1 mod m = (eval arg1 * eval arg2) mod m
231///
232#[inline]
233pub const fn fiat_p521_carry_mul(mut out1: &mut fiat_p521_tight_field_element, arg1: &fiat_p521_loose_field_element, arg2: &fiat_p521_loose_field_element) {
234  let x1: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
235  let x2: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
236  let x3: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
237  let x4: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(5)) * 0x2) as u128));
238  let x5: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(4)) * 0x2) as u128));
239  let x6: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(3)) * 0x2) as u128));
240  let x7: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(2)) * 0x2) as u128));
241  let x8: u128 = (((*IndexConst(arg1).index(8)) as u128) * (((*IndexConst(arg2).index(1)) * 0x2) as u128));
242  let x9: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
243  let x10: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
244  let x11: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
245  let x12: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(5)) * 0x2) as u128));
246  let x13: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(4)) * 0x2) as u128));
247  let x14: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(3)) * 0x2) as u128));
248  let x15: u128 = (((*IndexConst(arg1).index(7)) as u128) * (((*IndexConst(arg2).index(2)) * 0x2) as u128));
249  let x16: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
250  let x17: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
251  let x18: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
252  let x19: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(5)) * 0x2) as u128));
253  let x20: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(4)) * 0x2) as u128));
254  let x21: u128 = (((*IndexConst(arg1).index(6)) as u128) * (((*IndexConst(arg2).index(3)) * 0x2) as u128));
255  let x22: u128 = (((*IndexConst(arg1).index(5)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
256  let x23: u128 = (((*IndexConst(arg1).index(5)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
257  let x24: u128 = (((*IndexConst(arg1).index(5)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
258  let x25: u128 = (((*IndexConst(arg1).index(5)) as u128) * (((*IndexConst(arg2).index(5)) * 0x2) as u128));
259  let x26: u128 = (((*IndexConst(arg1).index(5)) as u128) * (((*IndexConst(arg2).index(4)) * 0x2) as u128));
260  let x27: u128 = (((*IndexConst(arg1).index(4)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
261  let x28: u128 = (((*IndexConst(arg1).index(4)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
262  let x29: u128 = (((*IndexConst(arg1).index(4)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
263  let x30: u128 = (((*IndexConst(arg1).index(4)) as u128) * (((*IndexConst(arg2).index(5)) * 0x2) as u128));
264  let x31: u128 = (((*IndexConst(arg1).index(3)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
265  let x32: u128 = (((*IndexConst(arg1).index(3)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
266  let x33: u128 = (((*IndexConst(arg1).index(3)) as u128) * (((*IndexConst(arg2).index(6)) * 0x2) as u128));
267  let x34: u128 = (((*IndexConst(arg1).index(2)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
268  let x35: u128 = (((*IndexConst(arg1).index(2)) as u128) * (((*IndexConst(arg2).index(7)) * 0x2) as u128));
269  let x36: u128 = (((*IndexConst(arg1).index(1)) as u128) * (((*IndexConst(arg2).index(8)) * 0x2) as u128));
270  let x37: u128 = (((*IndexConst(arg1).index(8)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
271  let x38: u128 = (((*IndexConst(arg1).index(7)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
272  let x39: u128 = (((*IndexConst(arg1).index(7)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
273  let x40: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
274  let x41: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
275  let x42: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
276  let x43: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
277  let x44: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
278  let x45: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
279  let x46: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
280  let x47: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg2).index(4)) as u128));
281  let x48: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
282  let x49: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
283  let x50: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
284  let x51: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
285  let x52: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(5)) as u128));
286  let x53: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(4)) as u128));
287  let x54: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
288  let x55: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
289  let x56: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
290  let x57: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
291  let x58: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(6)) as u128));
292  let x59: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(5)) as u128));
293  let x60: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(4)) as u128));
294  let x61: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
295  let x62: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
296  let x63: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
297  let x64: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
298  let x65: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(7)) as u128));
299  let x66: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(6)) as u128));
300  let x67: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(5)) as u128));
301  let x68: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(4)) as u128));
302  let x69: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
303  let x70: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
304  let x71: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
305  let x72: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
306  let x73: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(8)) as u128));
307  let x74: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(7)) as u128));
308  let x75: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(6)) as u128));
309  let x76: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(5)) as u128));
310  let x77: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(4)) as u128));
311  let x78: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(3)) as u128));
312  let x79: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(2)) as u128));
313  let x80: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(1)) as u128));
314  let x81: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg2).index(0)) as u128));
315  let x82: u128 = (x81 + (x36 + (x35 + (x33 + (x30 + (x26 + (x21 + (x15 + x8))))))));
316  let x83: u128 = (x82 >> 58);
317  let x84: u64 = ((x82 & (0x3ffffffffffffff as u128)) as u64);
318  let x85: u128 = (x73 + (x65 + (x58 + (x52 + (x47 + (x43 + (x40 + (x38 + x37))))))));
319  let x86: u128 = (x74 + (x66 + (x59 + (x53 + (x48 + (x44 + (x41 + (x39 + x1))))))));
320  let x87: u128 = (x75 + (x67 + (x60 + (x54 + (x49 + (x45 + (x42 + (x9 + x2))))))));
321  let x88: u128 = (x76 + (x68 + (x61 + (x55 + (x50 + (x46 + (x16 + (x10 + x3))))))));
322  let x89: u128 = (x77 + (x69 + (x62 + (x56 + (x51 + (x22 + (x17 + (x11 + x4))))))));
323  let x90: u128 = (x78 + (x70 + (x63 + (x57 + (x27 + (x23 + (x18 + (x12 + x5))))))));
324  let x91: u128 = (x79 + (x71 + (x64 + (x31 + (x28 + (x24 + (x19 + (x13 + x6))))))));
325  let x92: u128 = (x80 + (x72 + (x34 + (x32 + (x29 + (x25 + (x20 + (x14 + x7))))))));
326  let x93: u128 = (x83 + x92);
327  let x94: u128 = (x93 >> 58);
328  let x95: u64 = ((x93 & (0x3ffffffffffffff as u128)) as u64);
329  let x96: u128 = (x94 + x91);
330  let x97: u128 = (x96 >> 58);
331  let x98: u64 = ((x96 & (0x3ffffffffffffff as u128)) as u64);
332  let x99: u128 = (x97 + x90);
333  let x100: u128 = (x99 >> 58);
334  let x101: u64 = ((x99 & (0x3ffffffffffffff as u128)) as u64);
335  let x102: u128 = (x100 + x89);
336  let x103: u128 = (x102 >> 58);
337  let x104: u64 = ((x102 & (0x3ffffffffffffff as u128)) as u64);
338  let x105: u128 = (x103 + x88);
339  let x106: u128 = (x105 >> 58);
340  let x107: u64 = ((x105 & (0x3ffffffffffffff as u128)) as u64);
341  let x108: u128 = (x106 + x87);
342  let x109: u128 = (x108 >> 58);
343  let x110: u64 = ((x108 & (0x3ffffffffffffff as u128)) as u64);
344  let x111: u128 = (x109 + x86);
345  let x112: u128 = (x111 >> 58);
346  let x113: u64 = ((x111 & (0x3ffffffffffffff as u128)) as u64);
347  let x114: u128 = (x112 + x85);
348  let x115: u128 = (x114 >> 57);
349  let x116: u64 = ((x114 & (0x1ffffffffffffff as u128)) as u64);
350  let x117: u128 = ((x84 as u128) + x115);
351  let x118: u64 = ((x117 >> 58) as u64);
352  let x119: u64 = ((x117 & (0x3ffffffffffffff as u128)) as u64);
353  let x120: u64 = (x118 + x95);
354  let x121: fiat_p521_u1 = ((x120 >> 58) as fiat_p521_u1);
355  let x122: u64 = (x120 & 0x3ffffffffffffff);
356  let x123: u64 = ((x121 as u64) + x98);
357  *IndexConst(&mut out1).index_mut(0) = x119;
358  *IndexConst(&mut out1).index_mut(1) = x122;
359  *IndexConst(&mut out1).index_mut(2) = x123;
360  *IndexConst(&mut out1).index_mut(3) = x101;
361  *IndexConst(&mut out1).index_mut(4) = x104;
362  *IndexConst(&mut out1).index_mut(5) = x107;
363  *IndexConst(&mut out1).index_mut(6) = x110;
364  *IndexConst(&mut out1).index_mut(7) = x113;
365  *IndexConst(&mut out1).index_mut(8) = x116;
366}
367
368/// The function fiat_p521_carry_square squares a field element and reduces the result.
369///
370/// Postconditions:
371///   eval out1 mod m = (eval arg1 * eval arg1) mod m
372///
373#[inline]
374pub const fn fiat_p521_carry_square(mut out1: &mut fiat_p521_tight_field_element, arg1: &fiat_p521_loose_field_element) {
375  let x1: u64 = (*IndexConst(arg1).index(8));
376  let x2: u64 = (x1 * 0x2);
377  let x3: u64 = ((*IndexConst(arg1).index(8)) * 0x2);
378  let x4: u64 = (*IndexConst(arg1).index(7));
379  let x5: u64 = (x4 * 0x2);
380  let x6: u64 = ((*IndexConst(arg1).index(7)) * 0x2);
381  let x7: u64 = (*IndexConst(arg1).index(6));
382  let x8: u64 = (x7 * 0x2);
383  let x9: u64 = ((*IndexConst(arg1).index(6)) * 0x2);
384  let x10: u64 = (*IndexConst(arg1).index(5));
385  let x11: u64 = (x10 * 0x2);
386  let x12: u64 = ((*IndexConst(arg1).index(5)) * 0x2);
387  let x13: u64 = ((*IndexConst(arg1).index(4)) * 0x2);
388  let x14: u64 = ((*IndexConst(arg1).index(3)) * 0x2);
389  let x15: u64 = ((*IndexConst(arg1).index(2)) * 0x2);
390  let x16: u64 = ((*IndexConst(arg1).index(1)) * 0x2);
391  let x17: u128 = (((*IndexConst(arg1).index(8)) as u128) * ((x1 * 0x2) as u128));
392  let x18: u128 = (((*IndexConst(arg1).index(7)) as u128) * ((x2 * 0x2) as u128));
393  let x19: u128 = (((*IndexConst(arg1).index(7)) as u128) * ((x4 * 0x2) as u128));
394  let x20: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((x2 * 0x2) as u128));
395  let x21: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((x5 * 0x2) as u128));
396  let x22: u128 = (((*IndexConst(arg1).index(6)) as u128) * ((x7 * 0x2) as u128));
397  let x23: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((x2 * 0x2) as u128));
398  let x24: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((x5 * 0x2) as u128));
399  let x25: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((x8 * 0x2) as u128));
400  let x26: u128 = (((*IndexConst(arg1).index(5)) as u128) * ((x10 * 0x2) as u128));
401  let x27: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((x2 * 0x2) as u128));
402  let x28: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((x5 * 0x2) as u128));
403  let x29: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((x8 * 0x2) as u128));
404  let x30: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((x11 * 0x2) as u128));
405  let x31: u128 = (((*IndexConst(arg1).index(4)) as u128) * ((*IndexConst(arg1).index(4)) as u128));
406  let x32: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((x2 * 0x2) as u128));
407  let x33: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((x5 * 0x2) as u128));
408  let x34: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((x8 * 0x2) as u128));
409  let x35: u128 = (((*IndexConst(arg1).index(3)) as u128) * (x12 as u128));
410  let x36: u128 = (((*IndexConst(arg1).index(3)) as u128) * (x13 as u128));
411  let x37: u128 = (((*IndexConst(arg1).index(3)) as u128) * ((*IndexConst(arg1).index(3)) as u128));
412  let x38: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((x2 * 0x2) as u128));
413  let x39: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((x5 * 0x2) as u128));
414  let x40: u128 = (((*IndexConst(arg1).index(2)) as u128) * (x9 as u128));
415  let x41: u128 = (((*IndexConst(arg1).index(2)) as u128) * (x12 as u128));
416  let x42: u128 = (((*IndexConst(arg1).index(2)) as u128) * (x13 as u128));
417  let x43: u128 = (((*IndexConst(arg1).index(2)) as u128) * (x14 as u128));
418  let x44: u128 = (((*IndexConst(arg1).index(2)) as u128) * ((*IndexConst(arg1).index(2)) as u128));
419  let x45: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((x2 * 0x2) as u128));
420  let x46: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x6 as u128));
421  let x47: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x9 as u128));
422  let x48: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x12 as u128));
423  let x49: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x13 as u128));
424  let x50: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x14 as u128));
425  let x51: u128 = (((*IndexConst(arg1).index(1)) as u128) * (x15 as u128));
426  let x52: u128 = (((*IndexConst(arg1).index(1)) as u128) * ((*IndexConst(arg1).index(1)) as u128));
427  let x53: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x3 as u128));
428  let x54: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x6 as u128));
429  let x55: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x9 as u128));
430  let x56: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x12 as u128));
431  let x57: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x13 as u128));
432  let x58: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x14 as u128));
433  let x59: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x15 as u128));
434  let x60: u128 = (((*IndexConst(arg1).index(0)) as u128) * (x16 as u128));
435  let x61: u128 = (((*IndexConst(arg1).index(0)) as u128) * ((*IndexConst(arg1).index(0)) as u128));
436  let x62: u128 = (x61 + (x45 + (x39 + (x34 + x30))));
437  let x63: u128 = (x62 >> 58);
438  let x64: u64 = ((x62 & (0x3ffffffffffffff as u128)) as u64);
439  let x65: u128 = (x53 + (x46 + (x40 + (x35 + x31))));
440  let x66: u128 = (x54 + (x47 + (x41 + (x36 + x17))));
441  let x67: u128 = (x55 + (x48 + (x42 + (x37 + x18))));
442  let x68: u128 = (x56 + (x49 + (x43 + (x20 + x19))));
443  let x69: u128 = (x57 + (x50 + (x44 + (x23 + x21))));
444  let x70: u128 = (x58 + (x51 + (x27 + (x24 + x22))));
445  let x71: u128 = (x59 + (x52 + (x32 + (x28 + x25))));
446  let x72: u128 = (x60 + (x38 + (x33 + (x29 + x26))));
447  let x73: u128 = (x63 + x72);
448  let x74: u128 = (x73 >> 58);
449  let x75: u64 = ((x73 & (0x3ffffffffffffff as u128)) as u64);
450  let x76: u128 = (x74 + x71);
451  let x77: u128 = (x76 >> 58);
452  let x78: u64 = ((x76 & (0x3ffffffffffffff as u128)) as u64);
453  let x79: u128 = (x77 + x70);
454  let x80: u128 = (x79 >> 58);
455  let x81: u64 = ((x79 & (0x3ffffffffffffff as u128)) as u64);
456  let x82: u128 = (x80 + x69);
457  let x83: u128 = (x82 >> 58);
458  let x84: u64 = ((x82 & (0x3ffffffffffffff as u128)) as u64);
459  let x85: u128 = (x83 + x68);
460  let x86: u128 = (x85 >> 58);
461  let x87: u64 = ((x85 & (0x3ffffffffffffff as u128)) as u64);
462  let x88: u128 = (x86 + x67);
463  let x89: u128 = (x88 >> 58);
464  let x90: u64 = ((x88 & (0x3ffffffffffffff as u128)) as u64);
465  let x91: u128 = (x89 + x66);
466  let x92: u128 = (x91 >> 58);
467  let x93: u64 = ((x91 & (0x3ffffffffffffff as u128)) as u64);
468  let x94: u128 = (x92 + x65);
469  let x95: u128 = (x94 >> 57);
470  let x96: u64 = ((x94 & (0x1ffffffffffffff as u128)) as u64);
471  let x97: u128 = ((x64 as u128) + x95);
472  let x98: u64 = ((x97 >> 58) as u64);
473  let x99: u64 = ((x97 & (0x3ffffffffffffff as u128)) as u64);
474  let x100: u64 = (x98 + x75);
475  let x101: fiat_p521_u1 = ((x100 >> 58) as fiat_p521_u1);
476  let x102: u64 = (x100 & 0x3ffffffffffffff);
477  let x103: u64 = ((x101 as u64) + x78);
478  *IndexConst(&mut out1).index_mut(0) = x99;
479  *IndexConst(&mut out1).index_mut(1) = x102;
480  *IndexConst(&mut out1).index_mut(2) = x103;
481  *IndexConst(&mut out1).index_mut(3) = x81;
482  *IndexConst(&mut out1).index_mut(4) = x84;
483  *IndexConst(&mut out1).index_mut(5) = x87;
484  *IndexConst(&mut out1).index_mut(6) = x90;
485  *IndexConst(&mut out1).index_mut(7) = x93;
486  *IndexConst(&mut out1).index_mut(8) = x96;
487}
488
489/// The function fiat_p521_carry reduces a field element.
490///
491/// Postconditions:
492///   eval out1 mod m = eval arg1 mod m
493///
494#[inline]
495pub const fn fiat_p521_carry(mut out1: &mut fiat_p521_tight_field_element, arg1: &fiat_p521_loose_field_element) {
496  let x1: u64 = (*IndexConst(arg1).index(0));
497  let x2: u64 = ((x1 >> 58) + (*IndexConst(arg1).index(1)));
498  let x3: u64 = ((x2 >> 58) + (*IndexConst(arg1).index(2)));
499  let x4: u64 = ((x3 >> 58) + (*IndexConst(arg1).index(3)));
500  let x5: u64 = ((x4 >> 58) + (*IndexConst(arg1).index(4)));
501  let x6: u64 = ((x5 >> 58) + (*IndexConst(arg1).index(5)));
502  let x7: u64 = ((x6 >> 58) + (*IndexConst(arg1).index(6)));
503  let x8: u64 = ((x7 >> 58) + (*IndexConst(arg1).index(7)));
504  let x9: u64 = ((x8 >> 58) + (*IndexConst(arg1).index(8)));
505  let x10: u64 = ((x1 & 0x3ffffffffffffff) + (x9 >> 57));
506  let x11: u64 = ((((x10 >> 58) as fiat_p521_u1) as u64) + (x2 & 0x3ffffffffffffff));
507  let x12: u64 = (x10 & 0x3ffffffffffffff);
508  let x13: u64 = (x11 & 0x3ffffffffffffff);
509  let x14: u64 = ((((x11 >> 58) as fiat_p521_u1) as u64) + (x3 & 0x3ffffffffffffff));
510  let x15: u64 = (x4 & 0x3ffffffffffffff);
511  let x16: u64 = (x5 & 0x3ffffffffffffff);
512  let x17: u64 = (x6 & 0x3ffffffffffffff);
513  let x18: u64 = (x7 & 0x3ffffffffffffff);
514  let x19: u64 = (x8 & 0x3ffffffffffffff);
515  let x20: u64 = (x9 & 0x1ffffffffffffff);
516  *IndexConst(&mut out1).index_mut(0) = x12;
517  *IndexConst(&mut out1).index_mut(1) = x13;
518  *IndexConst(&mut out1).index_mut(2) = x14;
519  *IndexConst(&mut out1).index_mut(3) = x15;
520  *IndexConst(&mut out1).index_mut(4) = x16;
521  *IndexConst(&mut out1).index_mut(5) = x17;
522  *IndexConst(&mut out1).index_mut(6) = x18;
523  *IndexConst(&mut out1).index_mut(7) = x19;
524  *IndexConst(&mut out1).index_mut(8) = x20;
525}
526
527/// The function fiat_p521_add adds two field elements.
528///
529/// Postconditions:
530///   eval out1 mod m = (eval arg1 + eval arg2) mod m
531///
532#[inline]
533pub const fn fiat_p521_add(mut out1: &mut fiat_p521_loose_field_element, arg1: &fiat_p521_tight_field_element, arg2: &fiat_p521_tight_field_element) {
534  let x1: u64 = ((*IndexConst(arg1).index(0)) + (*IndexConst(arg2).index(0)));
535  let x2: u64 = ((*IndexConst(arg1).index(1)) + (*IndexConst(arg2).index(1)));
536  let x3: u64 = ((*IndexConst(arg1).index(2)) + (*IndexConst(arg2).index(2)));
537  let x4: u64 = ((*IndexConst(arg1).index(3)) + (*IndexConst(arg2).index(3)));
538  let x5: u64 = ((*IndexConst(arg1).index(4)) + (*IndexConst(arg2).index(4)));
539  let x6: u64 = ((*IndexConst(arg1).index(5)) + (*IndexConst(arg2).index(5)));
540  let x7: u64 = ((*IndexConst(arg1).index(6)) + (*IndexConst(arg2).index(6)));
541  let x8: u64 = ((*IndexConst(arg1).index(7)) + (*IndexConst(arg2).index(7)));
542  let x9: u64 = ((*IndexConst(arg1).index(8)) + (*IndexConst(arg2).index(8)));
543  *IndexConst(&mut out1).index_mut(0) = x1;
544  *IndexConst(&mut out1).index_mut(1) = x2;
545  *IndexConst(&mut out1).index_mut(2) = x3;
546  *IndexConst(&mut out1).index_mut(3) = x4;
547  *IndexConst(&mut out1).index_mut(4) = x5;
548  *IndexConst(&mut out1).index_mut(5) = x6;
549  *IndexConst(&mut out1).index_mut(6) = x7;
550  *IndexConst(&mut out1).index_mut(7) = x8;
551  *IndexConst(&mut out1).index_mut(8) = x9;
552}
553
554/// The function fiat_p521_sub subtracts two field elements.
555///
556/// Postconditions:
557///   eval out1 mod m = (eval arg1 - eval arg2) mod m
558///
559#[inline]
560pub const fn fiat_p521_sub(mut out1: &mut fiat_p521_loose_field_element, arg1: &fiat_p521_tight_field_element, arg2: &fiat_p521_tight_field_element) {
561  let x1: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(0))) - (*IndexConst(arg2).index(0)));
562  let x2: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(1))) - (*IndexConst(arg2).index(1)));
563  let x3: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(2))) - (*IndexConst(arg2).index(2)));
564  let x4: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(3))) - (*IndexConst(arg2).index(3)));
565  let x5: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(4))) - (*IndexConst(arg2).index(4)));
566  let x6: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(5))) - (*IndexConst(arg2).index(5)));
567  let x7: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(6))) - (*IndexConst(arg2).index(6)));
568  let x8: u64 = ((0x7fffffffffffffe + (*IndexConst(arg1).index(7))) - (*IndexConst(arg2).index(7)));
569  let x9: u64 = ((0x3fffffffffffffe + (*IndexConst(arg1).index(8))) - (*IndexConst(arg2).index(8)));
570  *IndexConst(&mut out1).index_mut(0) = x1;
571  *IndexConst(&mut out1).index_mut(1) = x2;
572  *IndexConst(&mut out1).index_mut(2) = x3;
573  *IndexConst(&mut out1).index_mut(3) = x4;
574  *IndexConst(&mut out1).index_mut(4) = x5;
575  *IndexConst(&mut out1).index_mut(5) = x6;
576  *IndexConst(&mut out1).index_mut(6) = x7;
577  *IndexConst(&mut out1).index_mut(7) = x8;
578  *IndexConst(&mut out1).index_mut(8) = x9;
579}
580
581/// The function fiat_p521_opp negates a field element.
582///
583/// Postconditions:
584///   eval out1 mod m = -eval arg1 mod m
585///
586#[inline]
587pub const fn fiat_p521_opp(mut out1: &mut fiat_p521_loose_field_element, arg1: &fiat_p521_tight_field_element) {
588  let x1: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(0)));
589  let x2: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(1)));
590  let x3: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(2)));
591  let x4: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(3)));
592  let x5: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(4)));
593  let x6: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(5)));
594  let x7: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(6)));
595  let x8: u64 = (0x7fffffffffffffe - (*IndexConst(arg1).index(7)));
596  let x9: u64 = (0x3fffffffffffffe - (*IndexConst(arg1).index(8)));
597  *IndexConst(&mut out1).index_mut(0) = x1;
598  *IndexConst(&mut out1).index_mut(1) = x2;
599  *IndexConst(&mut out1).index_mut(2) = x3;
600  *IndexConst(&mut out1).index_mut(3) = x4;
601  *IndexConst(&mut out1).index_mut(4) = x5;
602  *IndexConst(&mut out1).index_mut(5) = x6;
603  *IndexConst(&mut out1).index_mut(6) = x7;
604  *IndexConst(&mut out1).index_mut(7) = x8;
605  *IndexConst(&mut out1).index_mut(8) = x9;
606}
607
608/// The function fiat_p521_selectznz is a multi-limb conditional select.
609///
610/// Postconditions:
611///   out1 = (if arg1 = 0 then arg2 else arg3)
612///
613/// Input Bounds:
614///   arg1: [0x0 ~> 0x1]
615///   arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]
616///   arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]
617/// Output Bounds:
618///   out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]
619#[inline]
620pub const fn fiat_p521_selectznz(mut out1: &mut [u64; 9], arg1: fiat_p521_u1, arg2: &[u64; 9], arg3: &[u64; 9]) {
621  let mut x1: u64 = 0;
622  fiat_p521_cmovznz_u64(&mut x1, arg1, (*IndexConst(arg2).index(0)), (*IndexConst(arg3).index(0)));
623  let mut x2: u64 = 0;
624  fiat_p521_cmovznz_u64(&mut x2, arg1, (*IndexConst(arg2).index(1)), (*IndexConst(arg3).index(1)));
625  let mut x3: u64 = 0;
626  fiat_p521_cmovznz_u64(&mut x3, arg1, (*IndexConst(arg2).index(2)), (*IndexConst(arg3).index(2)));
627  let mut x4: u64 = 0;
628  fiat_p521_cmovznz_u64(&mut x4, arg1, (*IndexConst(arg2).index(3)), (*IndexConst(arg3).index(3)));
629  let mut x5: u64 = 0;
630  fiat_p521_cmovznz_u64(&mut x5, arg1, (*IndexConst(arg2).index(4)), (*IndexConst(arg3).index(4)));
631  let mut x6: u64 = 0;
632  fiat_p521_cmovznz_u64(&mut x6, arg1, (*IndexConst(arg2).index(5)), (*IndexConst(arg3).index(5)));
633  let mut x7: u64 = 0;
634  fiat_p521_cmovznz_u64(&mut x7, arg1, (*IndexConst(arg2).index(6)), (*IndexConst(arg3).index(6)));
635  let mut x8: u64 = 0;
636  fiat_p521_cmovznz_u64(&mut x8, arg1, (*IndexConst(arg2).index(7)), (*IndexConst(arg3).index(7)));
637  let mut x9: u64 = 0;
638  fiat_p521_cmovznz_u64(&mut x9, arg1, (*IndexConst(arg2).index(8)), (*IndexConst(arg3).index(8)));
639  *IndexConst(&mut out1).index_mut(0) = x1;
640  *IndexConst(&mut out1).index_mut(1) = x2;
641  *IndexConst(&mut out1).index_mut(2) = x3;
642  *IndexConst(&mut out1).index_mut(3) = x4;
643  *IndexConst(&mut out1).index_mut(4) = x5;
644  *IndexConst(&mut out1).index_mut(5) = x6;
645  *IndexConst(&mut out1).index_mut(6) = x7;
646  *IndexConst(&mut out1).index_mut(7) = x8;
647  *IndexConst(&mut out1).index_mut(8) = x9;
648}
649
650/// The function fiat_p521_to_bytes serializes a field element to bytes in little-endian order.
651///
652/// Postconditions:
653///   out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 * (x + 1))) / 2^(8 * x)⌋) [0..65]
654///
655/// Output Bounds:
656///   out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0x1]]
657#[inline]
658pub const fn fiat_p521_to_bytes(mut out1: &mut [u8; 66], arg1: &fiat_p521_tight_field_element) {
659  let mut x1: u64 = 0;
660  let mut x2: fiat_p521_u1 = 0;
661  fiat_p521_subborrowx_u58(&mut x1, &mut x2, 0x0, (*IndexConst(arg1).index(0)), 0x3ffffffffffffff);
662  let mut x3: u64 = 0;
663  let mut x4: fiat_p521_u1 = 0;
664  fiat_p521_subborrowx_u58(&mut x3, &mut x4, x2, (*IndexConst(arg1).index(1)), 0x3ffffffffffffff);
665  let mut x5: u64 = 0;
666  let mut x6: fiat_p521_u1 = 0;
667  fiat_p521_subborrowx_u58(&mut x5, &mut x6, x4, (*IndexConst(arg1).index(2)), 0x3ffffffffffffff);
668  let mut x7: u64 = 0;
669  let mut x8: fiat_p521_u1 = 0;
670  fiat_p521_subborrowx_u58(&mut x7, &mut x8, x6, (*IndexConst(arg1).index(3)), 0x3ffffffffffffff);
671  let mut x9: u64 = 0;
672  let mut x10: fiat_p521_u1 = 0;
673  fiat_p521_subborrowx_u58(&mut x9, &mut x10, x8, (*IndexConst(arg1).index(4)), 0x3ffffffffffffff);
674  let mut x11: u64 = 0;
675  let mut x12: fiat_p521_u1 = 0;
676  fiat_p521_subborrowx_u58(&mut x11, &mut x12, x10, (*IndexConst(arg1).index(5)), 0x3ffffffffffffff);
677  let mut x13: u64 = 0;
678  let mut x14: fiat_p521_u1 = 0;
679  fiat_p521_subborrowx_u58(&mut x13, &mut x14, x12, (*IndexConst(arg1).index(6)), 0x3ffffffffffffff);
680  let mut x15: u64 = 0;
681  let mut x16: fiat_p521_u1 = 0;
682  fiat_p521_subborrowx_u58(&mut x15, &mut x16, x14, (*IndexConst(arg1).index(7)), 0x3ffffffffffffff);
683  let mut x17: u64 = 0;
684  let mut x18: fiat_p521_u1 = 0;
685  fiat_p521_subborrowx_u57(&mut x17, &mut x18, x16, (*IndexConst(arg1).index(8)), 0x1ffffffffffffff);
686  let mut x19: u64 = 0;
687  fiat_p521_cmovznz_u64(&mut x19, x18, (0x0 as u64), 0xffffffffffffffff);
688  let mut x20: u64 = 0;
689  let mut x21: fiat_p521_u1 = 0;
690  fiat_p521_addcarryx_u58(&mut x20, &mut x21, 0x0, x1, (x19 & 0x3ffffffffffffff));
691  let mut x22: u64 = 0;
692  let mut x23: fiat_p521_u1 = 0;
693  fiat_p521_addcarryx_u58(&mut x22, &mut x23, x21, x3, (x19 & 0x3ffffffffffffff));
694  let mut x24: u64 = 0;
695  let mut x25: fiat_p521_u1 = 0;
696  fiat_p521_addcarryx_u58(&mut x24, &mut x25, x23, x5, (x19 & 0x3ffffffffffffff));
697  let mut x26: u64 = 0;
698  let mut x27: fiat_p521_u1 = 0;
699  fiat_p521_addcarryx_u58(&mut x26, &mut x27, x25, x7, (x19 & 0x3ffffffffffffff));
700  let mut x28: u64 = 0;
701  let mut x29: fiat_p521_u1 = 0;
702  fiat_p521_addcarryx_u58(&mut x28, &mut x29, x27, x9, (x19 & 0x3ffffffffffffff));
703  let mut x30: u64 = 0;
704  let mut x31: fiat_p521_u1 = 0;
705  fiat_p521_addcarryx_u58(&mut x30, &mut x31, x29, x11, (x19 & 0x3ffffffffffffff));
706  let mut x32: u64 = 0;
707  let mut x33: fiat_p521_u1 = 0;
708  fiat_p521_addcarryx_u58(&mut x32, &mut x33, x31, x13, (x19 & 0x3ffffffffffffff));
709  let mut x34: u64 = 0;
710  let mut x35: fiat_p521_u1 = 0;
711  fiat_p521_addcarryx_u58(&mut x34, &mut x35, x33, x15, (x19 & 0x3ffffffffffffff));
712  let mut x36: u64 = 0;
713  let mut x37: fiat_p521_u1 = 0;
714  fiat_p521_addcarryx_u57(&mut x36, &mut x37, x35, x17, (x19 & 0x1ffffffffffffff));
715  let x38: u64 = (x34 << 6);
716  let x39: u64 = (x32 << 4);
717  let x40: u64 = (x30 << 2);
718  let x41: u64 = (x26 << 6);
719  let x42: u64 = (x24 << 4);
720  let x43: u64 = (x22 << 2);
721  let x44: u8 = ((x20 & (0xff as u64)) as u8);
722  let x45: u64 = (x20 >> 8);
723  let x46: u8 = ((x45 & (0xff as u64)) as u8);
724  let x47: u64 = (x45 >> 8);
725  let x48: u8 = ((x47 & (0xff as u64)) as u8);
726  let x49: u64 = (x47 >> 8);
727  let x50: u8 = ((x49 & (0xff as u64)) as u8);
728  let x51: u64 = (x49 >> 8);
729  let x52: u8 = ((x51 & (0xff as u64)) as u8);
730  let x53: u64 = (x51 >> 8);
731  let x54: u8 = ((x53 & (0xff as u64)) as u8);
732  let x55: u64 = (x53 >> 8);
733  let x56: u8 = ((x55 & (0xff as u64)) as u8);
734  let x57: u8 = ((x55 >> 8) as u8);
735  let x58: u64 = (x43 + (x57 as u64));
736  let x59: u8 = ((x58 & (0xff as u64)) as u8);
737  let x60: u64 = (x58 >> 8);
738  let x61: u8 = ((x60 & (0xff as u64)) as u8);
739  let x62: u64 = (x60 >> 8);
740  let x63: u8 = ((x62 & (0xff as u64)) as u8);
741  let x64: u64 = (x62 >> 8);
742  let x65: u8 = ((x64 & (0xff as u64)) as u8);
743  let x66: u64 = (x64 >> 8);
744  let x67: u8 = ((x66 & (0xff as u64)) as u8);
745  let x68: u64 = (x66 >> 8);
746  let x69: u8 = ((x68 & (0xff as u64)) as u8);
747  let x70: u64 = (x68 >> 8);
748  let x71: u8 = ((x70 & (0xff as u64)) as u8);
749  let x72: u8 = ((x70 >> 8) as u8);
750  let x73: u64 = (x42 + (x72 as u64));
751  let x74: u8 = ((x73 & (0xff as u64)) as u8);
752  let x75: u64 = (x73 >> 8);
753  let x76: u8 = ((x75 & (0xff as u64)) as u8);
754  let x77: u64 = (x75 >> 8);
755  let x78: u8 = ((x77 & (0xff as u64)) as u8);
756  let x79: u64 = (x77 >> 8);
757  let x80: u8 = ((x79 & (0xff as u64)) as u8);
758  let x81: u64 = (x79 >> 8);
759  let x82: u8 = ((x81 & (0xff as u64)) as u8);
760  let x83: u64 = (x81 >> 8);
761  let x84: u8 = ((x83 & (0xff as u64)) as u8);
762  let x85: u64 = (x83 >> 8);
763  let x86: u8 = ((x85 & (0xff as u64)) as u8);
764  let x87: u8 = ((x85 >> 8) as u8);
765  let x88: u64 = (x41 + (x87 as u64));
766  let x89: u8 = ((x88 & (0xff as u64)) as u8);
767  let x90: u64 = (x88 >> 8);
768  let x91: u8 = ((x90 & (0xff as u64)) as u8);
769  let x92: u64 = (x90 >> 8);
770  let x93: u8 = ((x92 & (0xff as u64)) as u8);
771  let x94: u64 = (x92 >> 8);
772  let x95: u8 = ((x94 & (0xff as u64)) as u8);
773  let x96: u64 = (x94 >> 8);
774  let x97: u8 = ((x96 & (0xff as u64)) as u8);
775  let x98: u64 = (x96 >> 8);
776  let x99: u8 = ((x98 & (0xff as u64)) as u8);
777  let x100: u64 = (x98 >> 8);
778  let x101: u8 = ((x100 & (0xff as u64)) as u8);
779  let x102: u8 = ((x100 >> 8) as u8);
780  let x103: u8 = ((x28 & (0xff as u64)) as u8);
781  let x104: u64 = (x28 >> 8);
782  let x105: u8 = ((x104 & (0xff as u64)) as u8);
783  let x106: u64 = (x104 >> 8);
784  let x107: u8 = ((x106 & (0xff as u64)) as u8);
785  let x108: u64 = (x106 >> 8);
786  let x109: u8 = ((x108 & (0xff as u64)) as u8);
787  let x110: u64 = (x108 >> 8);
788  let x111: u8 = ((x110 & (0xff as u64)) as u8);
789  let x112: u64 = (x110 >> 8);
790  let x113: u8 = ((x112 & (0xff as u64)) as u8);
791  let x114: u64 = (x112 >> 8);
792  let x115: u8 = ((x114 & (0xff as u64)) as u8);
793  let x116: u8 = ((x114 >> 8) as u8);
794  let x117: u64 = (x40 + (x116 as u64));
795  let x118: u8 = ((x117 & (0xff as u64)) as u8);
796  let x119: u64 = (x117 >> 8);
797  let x120: u8 = ((x119 & (0xff as u64)) as u8);
798  let x121: u64 = (x119 >> 8);
799  let x122: u8 = ((x121 & (0xff as u64)) as u8);
800  let x123: u64 = (x121 >> 8);
801  let x124: u8 = ((x123 & (0xff as u64)) as u8);
802  let x125: u64 = (x123 >> 8);
803  let x126: u8 = ((x125 & (0xff as u64)) as u8);
804  let x127: u64 = (x125 >> 8);
805  let x128: u8 = ((x127 & (0xff as u64)) as u8);
806  let x129: u64 = (x127 >> 8);
807  let x130: u8 = ((x129 & (0xff as u64)) as u8);
808  let x131: u8 = ((x129 >> 8) as u8);
809  let x132: u64 = (x39 + (x131 as u64));
810  let x133: u8 = ((x132 & (0xff as u64)) as u8);
811  let x134: u64 = (x132 >> 8);
812  let x135: u8 = ((x134 & (0xff as u64)) as u8);
813  let x136: u64 = (x134 >> 8);
814  let x137: u8 = ((x136 & (0xff as u64)) as u8);
815  let x138: u64 = (x136 >> 8);
816  let x139: u8 = ((x138 & (0xff as u64)) as u8);
817  let x140: u64 = (x138 >> 8);
818  let x141: u8 = ((x140 & (0xff as u64)) as u8);
819  let x142: u64 = (x140 >> 8);
820  let x143: u8 = ((x142 & (0xff as u64)) as u8);
821  let x144: u64 = (x142 >> 8);
822  let x145: u8 = ((x144 & (0xff as u64)) as u8);
823  let x146: u8 = ((x144 >> 8) as u8);
824  let x147: u64 = (x38 + (x146 as u64));
825  let x148: u8 = ((x147 & (0xff as u64)) as u8);
826  let x149: u64 = (x147 >> 8);
827  let x150: u8 = ((x149 & (0xff as u64)) as u8);
828  let x151: u64 = (x149 >> 8);
829  let x152: u8 = ((x151 & (0xff as u64)) as u8);
830  let x153: u64 = (x151 >> 8);
831  let x154: u8 = ((x153 & (0xff as u64)) as u8);
832  let x155: u64 = (x153 >> 8);
833  let x156: u8 = ((x155 & (0xff as u64)) as u8);
834  let x157: u64 = (x155 >> 8);
835  let x158: u8 = ((x157 & (0xff as u64)) as u8);
836  let x159: u64 = (x157 >> 8);
837  let x160: u8 = ((x159 & (0xff as u64)) as u8);
838  let x161: u8 = ((x159 >> 8) as u8);
839  let x162: u8 = ((x36 & (0xff as u64)) as u8);
840  let x163: u64 = (x36 >> 8);
841  let x164: u8 = ((x163 & (0xff as u64)) as u8);
842  let x165: u64 = (x163 >> 8);
843  let x166: u8 = ((x165 & (0xff as u64)) as u8);
844  let x167: u64 = (x165 >> 8);
845  let x168: u8 = ((x167 & (0xff as u64)) as u8);
846  let x169: u64 = (x167 >> 8);
847  let x170: u8 = ((x169 & (0xff as u64)) as u8);
848  let x171: u64 = (x169 >> 8);
849  let x172: u8 = ((x171 & (0xff as u64)) as u8);
850  let x173: u64 = (x171 >> 8);
851  let x174: u8 = ((x173 & (0xff as u64)) as u8);
852  let x175: fiat_p521_u1 = ((x173 >> 8) as fiat_p521_u1);
853  *IndexConst(&mut out1).index_mut(0) = x44;
854  *IndexConst(&mut out1).index_mut(1) = x46;
855  *IndexConst(&mut out1).index_mut(2) = x48;
856  *IndexConst(&mut out1).index_mut(3) = x50;
857  *IndexConst(&mut out1).index_mut(4) = x52;
858  *IndexConst(&mut out1).index_mut(5) = x54;
859  *IndexConst(&mut out1).index_mut(6) = x56;
860  *IndexConst(&mut out1).index_mut(7) = x59;
861  *IndexConst(&mut out1).index_mut(8) = x61;
862  *IndexConst(&mut out1).index_mut(9) = x63;
863  *IndexConst(&mut out1).index_mut(10) = x65;
864  *IndexConst(&mut out1).index_mut(11) = x67;
865  *IndexConst(&mut out1).index_mut(12) = x69;
866  *IndexConst(&mut out1).index_mut(13) = x71;
867  *IndexConst(&mut out1).index_mut(14) = x74;
868  *IndexConst(&mut out1).index_mut(15) = x76;
869  *IndexConst(&mut out1).index_mut(16) = x78;
870  *IndexConst(&mut out1).index_mut(17) = x80;
871  *IndexConst(&mut out1).index_mut(18) = x82;
872  *IndexConst(&mut out1).index_mut(19) = x84;
873  *IndexConst(&mut out1).index_mut(20) = x86;
874  *IndexConst(&mut out1).index_mut(21) = x89;
875  *IndexConst(&mut out1).index_mut(22) = x91;
876  *IndexConst(&mut out1).index_mut(23) = x93;
877  *IndexConst(&mut out1).index_mut(24) = x95;
878  *IndexConst(&mut out1).index_mut(25) = x97;
879  *IndexConst(&mut out1).index_mut(26) = x99;
880  *IndexConst(&mut out1).index_mut(27) = x101;
881  *IndexConst(&mut out1).index_mut(28) = x102;
882  *IndexConst(&mut out1).index_mut(29) = x103;
883  *IndexConst(&mut out1).index_mut(30) = x105;
884  *IndexConst(&mut out1).index_mut(31) = x107;
885  *IndexConst(&mut out1).index_mut(32) = x109;
886  *IndexConst(&mut out1).index_mut(33) = x111;
887  *IndexConst(&mut out1).index_mut(34) = x113;
888  *IndexConst(&mut out1).index_mut(35) = x115;
889  *IndexConst(&mut out1).index_mut(36) = x118;
890  *IndexConst(&mut out1).index_mut(37) = x120;
891  *IndexConst(&mut out1).index_mut(38) = x122;
892  *IndexConst(&mut out1).index_mut(39) = x124;
893  *IndexConst(&mut out1).index_mut(40) = x126;
894  *IndexConst(&mut out1).index_mut(41) = x128;
895  *IndexConst(&mut out1).index_mut(42) = x130;
896  *IndexConst(&mut out1).index_mut(43) = x133;
897  *IndexConst(&mut out1).index_mut(44) = x135;
898  *IndexConst(&mut out1).index_mut(45) = x137;
899  *IndexConst(&mut out1).index_mut(46) = x139;
900  *IndexConst(&mut out1).index_mut(47) = x141;
901  *IndexConst(&mut out1).index_mut(48) = x143;
902  *IndexConst(&mut out1).index_mut(49) = x145;
903  *IndexConst(&mut out1).index_mut(50) = x148;
904  *IndexConst(&mut out1).index_mut(51) = x150;
905  *IndexConst(&mut out1).index_mut(52) = x152;
906  *IndexConst(&mut out1).index_mut(53) = x154;
907  *IndexConst(&mut out1).index_mut(54) = x156;
908  *IndexConst(&mut out1).index_mut(55) = x158;
909  *IndexConst(&mut out1).index_mut(56) = x160;
910  *IndexConst(&mut out1).index_mut(57) = x161;
911  *IndexConst(&mut out1).index_mut(58) = x162;
912  *IndexConst(&mut out1).index_mut(59) = x164;
913  *IndexConst(&mut out1).index_mut(60) = x166;
914  *IndexConst(&mut out1).index_mut(61) = x168;
915  *IndexConst(&mut out1).index_mut(62) = x170;
916  *IndexConst(&mut out1).index_mut(63) = x172;
917  *IndexConst(&mut out1).index_mut(64) = x174;
918  *IndexConst(&mut out1).index_mut(65) = (x175 as u8);
919}
920
921/// The function fiat_p521_from_bytes deserializes a field element from bytes in little-endian order.
922///
923/// Postconditions:
924///   eval out1 mod m = bytes_eval arg1 mod m
925///
926/// Input Bounds:
927///   arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0x1]]
928#[inline]
929pub const fn fiat_p521_from_bytes(mut out1: &mut fiat_p521_tight_field_element, arg1: &[u8; 66]) {
930  let x1: u64 = ((((*IndexConst(arg1).index(65)) as fiat_p521_u1) as u64) << 56);
931  let x2: u64 = (((*IndexConst(arg1).index(64)) as u64) << 48);
932  let x3: u64 = (((*IndexConst(arg1).index(63)) as u64) << 40);
933  let x4: u64 = (((*IndexConst(arg1).index(62)) as u64) << 32);
934  let x5: u64 = (((*IndexConst(arg1).index(61)) as u64) << 24);
935  let x6: u64 = (((*IndexConst(arg1).index(60)) as u64) << 16);
936  let x7: u64 = (((*IndexConst(arg1).index(59)) as u64) << 8);
937  let x8: u8 = (*IndexConst(arg1).index(58));
938  let x9: u64 = (((*IndexConst(arg1).index(57)) as u64) << 50);
939  let x10: u64 = (((*IndexConst(arg1).index(56)) as u64) << 42);
940  let x11: u64 = (((*IndexConst(arg1).index(55)) as u64) << 34);
941  let x12: u64 = (((*IndexConst(arg1).index(54)) as u64) << 26);
942  let x13: u64 = (((*IndexConst(arg1).index(53)) as u64) << 18);
943  let x14: u64 = (((*IndexConst(arg1).index(52)) as u64) << 10);
944  let x15: u64 = (((*IndexConst(arg1).index(51)) as u64) << 2);
945  let x16: u64 = (((*IndexConst(arg1).index(50)) as u64) << 52);
946  let x17: u64 = (((*IndexConst(arg1).index(49)) as u64) << 44);
947  let x18: u64 = (((*IndexConst(arg1).index(48)) as u64) << 36);
948  let x19: u64 = (((*IndexConst(arg1).index(47)) as u64) << 28);
949  let x20: u64 = (((*IndexConst(arg1).index(46)) as u64) << 20);
950  let x21: u64 = (((*IndexConst(arg1).index(45)) as u64) << 12);
951  let x22: u64 = (((*IndexConst(arg1).index(44)) as u64) << 4);
952  let x23: u64 = (((*IndexConst(arg1).index(43)) as u64) << 54);
953  let x24: u64 = (((*IndexConst(arg1).index(42)) as u64) << 46);
954  let x25: u64 = (((*IndexConst(arg1).index(41)) as u64) << 38);
955  let x26: u64 = (((*IndexConst(arg1).index(40)) as u64) << 30);
956  let x27: u64 = (((*IndexConst(arg1).index(39)) as u64) << 22);
957  let x28: u64 = (((*IndexConst(arg1).index(38)) as u64) << 14);
958  let x29: u64 = (((*IndexConst(arg1).index(37)) as u64) << 6);
959  let x30: u64 = (((*IndexConst(arg1).index(36)) as u64) << 56);
960  let x31: u64 = (((*IndexConst(arg1).index(35)) as u64) << 48);
961  let x32: u64 = (((*IndexConst(arg1).index(34)) as u64) << 40);
962  let x33: u64 = (((*IndexConst(arg1).index(33)) as u64) << 32);
963  let x34: u64 = (((*IndexConst(arg1).index(32)) as u64) << 24);
964  let x35: u64 = (((*IndexConst(arg1).index(31)) as u64) << 16);
965  let x36: u64 = (((*IndexConst(arg1).index(30)) as u64) << 8);
966  let x37: u8 = (*IndexConst(arg1).index(29));
967  let x38: u64 = (((*IndexConst(arg1).index(28)) as u64) << 50);
968  let x39: u64 = (((*IndexConst(arg1).index(27)) as u64) << 42);
969  let x40: u64 = (((*IndexConst(arg1).index(26)) as u64) << 34);
970  let x41: u64 = (((*IndexConst(arg1).index(25)) as u64) << 26);
971  let x42: u64 = (((*IndexConst(arg1).index(24)) as u64) << 18);
972  let x43: u64 = (((*IndexConst(arg1).index(23)) as u64) << 10);
973  let x44: u64 = (((*IndexConst(arg1).index(22)) as u64) << 2);
974  let x45: u64 = (((*IndexConst(arg1).index(21)) as u64) << 52);
975  let x46: u64 = (((*IndexConst(arg1).index(20)) as u64) << 44);
976  let x47: u64 = (((*IndexConst(arg1).index(19)) as u64) << 36);
977  let x48: u64 = (((*IndexConst(arg1).index(18)) as u64) << 28);
978  let x49: u64 = (((*IndexConst(arg1).index(17)) as u64) << 20);
979  let x50: u64 = (((*IndexConst(arg1).index(16)) as u64) << 12);
980  let x51: u64 = (((*IndexConst(arg1).index(15)) as u64) << 4);
981  let x52: u64 = (((*IndexConst(arg1).index(14)) as u64) << 54);
982  let x53: u64 = (((*IndexConst(arg1).index(13)) as u64) << 46);
983  let x54: u64 = (((*IndexConst(arg1).index(12)) as u64) << 38);
984  let x55: u64 = (((*IndexConst(arg1).index(11)) as u64) << 30);
985  let x56: u64 = (((*IndexConst(arg1).index(10)) as u64) << 22);
986  let x57: u64 = (((*IndexConst(arg1).index(9)) as u64) << 14);
987  let x58: u64 = (((*IndexConst(arg1).index(8)) as u64) << 6);
988  let x59: u64 = (((*IndexConst(arg1).index(7)) as u64) << 56);
989  let x60: u64 = (((*IndexConst(arg1).index(6)) as u64) << 48);
990  let x61: u64 = (((*IndexConst(arg1).index(5)) as u64) << 40);
991  let x62: u64 = (((*IndexConst(arg1).index(4)) as u64) << 32);
992  let x63: u64 = (((*IndexConst(arg1).index(3)) as u64) << 24);
993  let x64: u64 = (((*IndexConst(arg1).index(2)) as u64) << 16);
994  let x65: u64 = (((*IndexConst(arg1).index(1)) as u64) << 8);
995  let x66: u8 = (*IndexConst(arg1).index(0));
996  let x67: u64 = (x65 + (x66 as u64));
997  let x68: u64 = (x64 + x67);
998  let x69: u64 = (x63 + x68);
999  let x70: u64 = (x62 + x69);
1000  let x71: u64 = (x61 + x70);
1001  let x72: u64 = (x60 + x71);
1002  let x73: u64 = (x59 + x72);
1003  let x74: u64 = (x73 & 0x3ffffffffffffff);
1004  let x75: u8 = ((x73 >> 58) as u8);
1005  let x76: u64 = (x58 + (x75 as u64));
1006  let x77: u64 = (x57 + x76);
1007  let x78: u64 = (x56 + x77);
1008  let x79: u64 = (x55 + x78);
1009  let x80: u64 = (x54 + x79);
1010  let x81: u64 = (x53 + x80);
1011  let x82: u64 = (x52 + x81);
1012  let x83: u64 = (x82 & 0x3ffffffffffffff);
1013  let x84: u8 = ((x82 >> 58) as u8);
1014  let x85: u64 = (x51 + (x84 as u64));
1015  let x86: u64 = (x50 + x85);
1016  let x87: u64 = (x49 + x86);
1017  let x88: u64 = (x48 + x87);
1018  let x89: u64 = (x47 + x88);
1019  let x90: u64 = (x46 + x89);
1020  let x91: u64 = (x45 + x90);
1021  let x92: u64 = (x91 & 0x3ffffffffffffff);
1022  let x93: u8 = ((x91 >> 58) as u8);
1023  let x94: u64 = (x44 + (x93 as u64));
1024  let x95: u64 = (x43 + x94);
1025  let x96: u64 = (x42 + x95);
1026  let x97: u64 = (x41 + x96);
1027  let x98: u64 = (x40 + x97);
1028  let x99: u64 = (x39 + x98);
1029  let x100: u64 = (x38 + x99);
1030  let x101: u64 = (x36 + (x37 as u64));
1031  let x102: u64 = (x35 + x101);
1032  let x103: u64 = (x34 + x102);
1033  let x104: u64 = (x33 + x103);
1034  let x105: u64 = (x32 + x104);
1035  let x106: u64 = (x31 + x105);
1036  let x107: u64 = (x30 + x106);
1037  let x108: u64 = (x107 & 0x3ffffffffffffff);
1038  let x109: u8 = ((x107 >> 58) as u8);
1039  let x110: u64 = (x29 + (x109 as u64));
1040  let x111: u64 = (x28 + x110);
1041  let x112: u64 = (x27 + x111);
1042  let x113: u64 = (x26 + x112);
1043  let x114: u64 = (x25 + x113);
1044  let x115: u64 = (x24 + x114);
1045  let x116: u64 = (x23 + x115);
1046  let x117: u64 = (x116 & 0x3ffffffffffffff);
1047  let x118: u8 = ((x116 >> 58) as u8);
1048  let x119: u64 = (x22 + (x118 as u64));
1049  let x120: u64 = (x21 + x119);
1050  let x121: u64 = (x20 + x120);
1051  let x122: u64 = (x19 + x121);
1052  let x123: u64 = (x18 + x122);
1053  let x124: u64 = (x17 + x123);
1054  let x125: u64 = (x16 + x124);
1055  let x126: u64 = (x125 & 0x3ffffffffffffff);
1056  let x127: u8 = ((x125 >> 58) as u8);
1057  let x128: u64 = (x15 + (x127 as u64));
1058  let x129: u64 = (x14 + x128);
1059  let x130: u64 = (x13 + x129);
1060  let x131: u64 = (x12 + x130);
1061  let x132: u64 = (x11 + x131);
1062  let x133: u64 = (x10 + x132);
1063  let x134: u64 = (x9 + x133);
1064  let x135: u64 = (x7 + (x8 as u64));
1065  let x136: u64 = (x6 + x135);
1066  let x137: u64 = (x5 + x136);
1067  let x138: u64 = (x4 + x137);
1068  let x139: u64 = (x3 + x138);
1069  let x140: u64 = (x2 + x139);
1070  let x141: u64 = (x1 + x140);
1071  *IndexConst(&mut out1).index_mut(0) = x74;
1072  *IndexConst(&mut out1).index_mut(1) = x83;
1073  *IndexConst(&mut out1).index_mut(2) = x92;
1074  *IndexConst(&mut out1).index_mut(3) = x100;
1075  *IndexConst(&mut out1).index_mut(4) = x108;
1076  *IndexConst(&mut out1).index_mut(5) = x117;
1077  *IndexConst(&mut out1).index_mut(6) = x126;
1078  *IndexConst(&mut out1).index_mut(7) = x134;
1079  *IndexConst(&mut out1).index_mut(8) = x141;
1080}
1081
1082/// The function fiat_p521_relax is the identity function converting from tight field elements to loose field elements.
1083///
1084/// Postconditions:
1085///   out1 = arg1
1086///
1087#[inline]
1088pub const fn fiat_p521_relax(mut out1: &mut fiat_p521_loose_field_element, arg1: &fiat_p521_tight_field_element) {
1089  let x1: u64 = (*IndexConst(arg1).index(0));
1090  let x2: u64 = (*IndexConst(arg1).index(1));
1091  let x3: u64 = (*IndexConst(arg1).index(2));
1092  let x4: u64 = (*IndexConst(arg1).index(3));
1093  let x5: u64 = (*IndexConst(arg1).index(4));
1094  let x6: u64 = (*IndexConst(arg1).index(5));
1095  let x7: u64 = (*IndexConst(arg1).index(6));
1096  let x8: u64 = (*IndexConst(arg1).index(7));
1097  let x9: u64 = (*IndexConst(arg1).index(8));
1098  *IndexConst(&mut out1).index_mut(0) = x1;
1099  *IndexConst(&mut out1).index_mut(1) = x2;
1100  *IndexConst(&mut out1).index_mut(2) = x3;
1101  *IndexConst(&mut out1).index_mut(3) = x4;
1102  *IndexConst(&mut out1).index_mut(4) = x5;
1103  *IndexConst(&mut out1).index_mut(5) = x6;
1104  *IndexConst(&mut out1).index_mut(6) = x7;
1105  *IndexConst(&mut out1).index_mut(7) = x8;
1106  *IndexConst(&mut out1).index_mut(8) = x9;
1107}
fiat_crypto/p521_64.rs

fiat_crypto/
p521_64.rs
