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add amd64-{51-30k,64-24k} from SUPERCOP, now use autoconf

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cathugger 2017-09-27 02:35:56 +03:00
parent ad9c6592ed
commit 81cebae449
162 changed files with 79451 additions and 277 deletions
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34
ed25519/amd64-51-30k/fe25519_sub.c Normal file
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@ -0,0 +1,34 @@
#include "fe25519.h"
void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y)
{
fe25519 yt = *y;
/* Not required for reduced input */
unsigned long long t;
t = yt.v[0] >> 51;
yt.v[0] &= 2251799813685247;
yt.v[1] += t;
t = yt.v[1] >> 51;
yt.v[1] &= 2251799813685247;
yt.v[2] += t;
t = yt.v[2] >> 51;
yt.v[2] &= 2251799813685247;
yt.v[3] += t;
t = yt.v[3] >> 51;
yt.v[3] &= 2251799813685247;
yt.v[4] += t;
t = yt.v[4] >> 51;
yt.v[4] &= 2251799813685247;
yt.v[0] += 19*t;
r->v[0] = x->v[0] + 0xFFFFFFFFFFFDA - yt.v[0];
r->v[1] = x->v[1] + 0xFFFFFFFFFFFFE - yt.v[1];
r->v[2] = x->v[2] + 0xFFFFFFFFFFFFE - yt.v[2];
r->v[3] = x->v[3] + 0xFFFFFFFFFFFFE - yt.v[3];
r->v[4] = x->v[4] + 0xFFFFFFFFFFFFE - yt.v[4];
}