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1st assembly version of field 5x64 code - bugfix

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Diederik Huys
2013-06-17 15:31:06 +02:00
parent dd804adeff
commit 355b4192cf
4 changed files with 14 additions and 9 deletions
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5
src/impl/field_5x64.h
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@@ -325,6 +325,10 @@ void static secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *ac, const
void static secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *ac) {
secp256k1_fe_t a = *ac;
secp256k1_fe_reduce(&a);
#ifdef USE_FIELD_5X64_ASM
secp256k1_fe_sqr_inner((&a)->n,r->n);
#else
uint64_t c1,c2,c3;
c3=0;
mul_c2(a.n[0], a.n[0], c1, c2);
@@ -355,6 +359,7 @@ void static secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *ac) {
c = (unsigned __int128)r7 * COMP_LIMB + r3 + (c >> 64);
r->n[3] = c;
r->n[4] = c >> 64;
#endif
#ifdef VERIFY
r->normalized = 0;