Commit 3ebbe885 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

Bring C bn_mul_mont template closer to assembler.

parent ac71d81e

crypto/bn/bn_asm.c

+24 −2
Original line number Diff line number Diff line
@@ -860,13 +860,35 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U 


	n0 = *n0p;



	tp[num]   = bn_mul_words(tp,ap,num,bp[0]);

	c0 = 0;

	ml = bp[0];

#ifdef mul64

	mh = HBITS(ml);

	ml = LBITS(ml);

	for (j=0;j<num;++j)

		mul(tp[j],ap[j],ml,mh,c0);

#else

	for (j=0;j<num;++j)

		mul(tp[j],ap[j],ml,c0);

#endif



	tp[num]   = c0;

	tp[num+1] = 0;

	goto enter;



	for(i=0;i<num;i++)

		{

		c0 = bn_mul_add_words(tp,ap,num,bp[i]);

		c0 = 0;

		ml = bp[i];

#ifdef mul64

		mh = HBITS(ml);

		ml = LBITS(ml);

		for (j=0;j<num;++j)

			mul_add(tp[j],ap[j],ml,mh,c0);

#else

		for (j=0;j<num;++j)

			mul_add(tp[j],ap[j],ml,c0);

#endif

		c1 = (tp[num] + c0)&BN_MASK2;

		tp[num]   = c1;

		tp[num+1] = (c1<c0?1:0);