package im.actor.runtime.crypto.primitives.curve25519;
// Disabling Bounds checks for speeding up calculations
/*-[
#define J2OBJC_DISABLE_ARRAY_BOUND_CHECKS 1
]-*/
public class fe_mul121666 {
//CONVERT #include "fe.h"
//CONVERT #include "long.h"
/*
h = f * 121666
Can overlap h with f.
Preconditions:
|f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
Postconditions:
|h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
*/
public static void fe_mul121666(int[] h, int[] f) {
int f0 = f[0];
int f1 = f[1];
int f2 = f[2];
int f3 = f[3];
int f4 = f[4];
int f5 = f[5];
int f6 = f[6];
int f7 = f[7];
int f8 = f[8];
int f9 = f[9];
long h0 = f0 * (long) 121666;
long h1 = f1 * (long) 121666;
long h2 = f2 * (long) 121666;
long h3 = f3 * (long) 121666;
long h4 = f4 * (long) 121666;
long h5 = f5 * (long) 121666;
long h6 = f6 * (long) 121666;
long h7 = f7 * (long) 121666;
long h8 = f8 * (long) 121666;
long h9 = f9 * (long) 121666;
long carry0;
long carry1;
long carry2;
long carry3;
long carry4;
long carry5;
long carry6;
long carry7;
long carry8;
long carry9;
carry9 = (h9 + (long) (1 << 24)) >> 25;
h0 += carry9 * 19;
h9 -= carry9 << 25;
carry1 = (h1 + (long) (1 << 24)) >> 25;
h2 += carry1;
h1 -= carry1 << 25;
carry3 = (h3 + (long) (1 << 24)) >> 25;
h4 += carry3;
h3 -= carry3 << 25;
carry5 = (h5 + (long) (1 << 24)) >> 25;
h6 += carry5;
h5 -= carry5 << 25;
carry7 = (h7 + (long) (1 << 24)) >> 25;
h8 += carry7;
h7 -= carry7 << 25;
carry0 = (h0 + (long) (1 << 25)) >> 26;
h1 += carry0;
h0 -= carry0 << 26;
carry2 = (h2 + (long) (1 << 25)) >> 26;
h3 += carry2;
h2 -= carry2 << 26;
carry4 = (h4 + (long) (1 << 25)) >> 26;
h5 += carry4;
h4 -= carry4 << 26;
carry6 = (h6 + (long) (1 << 25)) >> 26;
h7 += carry6;
h6 -= carry6 << 26;
carry8 = (h8 + (long) (1 << 25)) >> 26;
h9 += carry8;
h8 -= carry8 << 26;
h[0] = (int) h0;
h[1] = (int) h1;
h[2] = (int) h2;
h[3] = (int) h3;
h[4] = (int) h4;
h[5] = (int) h5;
h[6] = (int) h6;
h[7] = (int) h7;
h[8] = (int) h8;
h[9] = (int) h9;
}
}