nl_tokens: am1 : use a single mult and divide to get the high bits max digit bits should be 26 because max internal value = 2 * dvalue^2 - 2 * dvalue ( < 2^53 )
pl_tokens: function am1 ( i , x , w , j , c , n ) { var this_array = this . <mask> ; var w_array = w . array ; while ( -- n >= 0 ) { var v = x * this_array [ i ++ ] + w_array [ j ] + c ; c = Math . floor ( v / 0x4000000 ) ; w_array [ j ++ ] = v & 0x3ffffff ; } return c ; }