Commit cea53815 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

Get rid of redundant multiplications in bn_div_words.

parent 5f12fc00

crypto/bn/bn_asm.c

+5 −5
Original line number Diff line number Diff line
@@ -266,16 +266,16 @@ BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) 


		for (;;)

			{

			t=(h-q*dh);

			t=(h-(th=q*dh));

			tl=BN_MASK2;

			if ((t&BN_MASK2h) ||

				((dl*q) <= (

					(t<<BN_BITS4)+

				((tl=dl*q) <= (

					(t<<BN_BITS4)|

					((l&BN_MASK2h)>>BN_BITS4))))

				break;

			q--;

			}

		th=q*dh;

		tl=q*dl;

		if (tl==BN_MASK2) tl=q*dl;

		t=(tl>>BN_BITS4);

		tl=(tl<<BN_BITS4)&BN_MASK2h;

		th+=t;