datatypes/fx/scfx_rep.cpp

897     double result = id;
900         result += m_sign * scfx_pow2( exp - SCFX_IEEE_DOUBLE_M_SIZE );
902     return result;
1247 //  result has the same size
1253 add_mants( int size, scfx_mant& result,
1269 	result[index] = y;
1279 sub_mants( int size, scfx_mant& result,
1295 	result[index] = y;
1306     scfx_rep& result = *new scfx_rep;
1315 	result.set_nan();
1316 	return &result;
1321 	result.set_inf( lhs.m_sign );
1322 	return &result;
1327 	result.set_inf( rhs.m_sign );
1328 	return &result;
1344     // size the result mantissa
1347     result.resize_to( len_mant );
1348     result.m_wp = new_wp;
1356 	add_mants( len_mant, result.m_mant, lhs_mant, rhs_mant );
1357 	result.m_sign = lhs.m_sign;
1365 	    sub_mants( len_mant, result.m_mant, lhs_mant, rhs_mant );
1366 	    result.m_sign = lhs.m_sign;
1370 	    sub_mants( len_mant, result.m_mant, rhs_mant, lhs_mant );
1371 	    result.m_sign = rhs.m_sign;
1375 	    result.m_mant.clear();
1376 	    result.m_sign = 1;
1380     result.find_sw();
1381     result.round( max_wl );
1383     return &result;
1391 //  result has the same size
1435     scfx_rep& result = *new scfx_rep;
1444 	result.set_nan();
1445 	return &result;
1450 	result.set_inf( lhs.m_sign );
1451 	return &result;
1456 	result.set_inf( -1 * rhs.m_sign );
1457 	return &result;
1473     // size the result mantissa
1476     result.resize_to( len_mant );
1477     result.m_wp = new_wp;
1485 	add_mants( len_mant, result.m_mant, lhs_mant, rhs_mant );
1486 	result.m_sign = lhs.m_sign;
1494 	    sub_mants( len_mant, result.m_mant, lhs_mant, rhs_mant );
1495 	    result.m_sign = lhs.m_sign;
1499 	    sub_mants( len_mant, result.m_mant, rhs_mant, lhs_mant );
1500 	    result.m_sign = -rhs.m_sign;
1502 	    result.m_mant.clear();
1503 	    result.m_sign = 1;
1507     result.find_sw();
1508     result.round( max_wl );
1510     return &result;
1542 multiply( scfx_rep& result, const scfx_rep& lhs, const scfx_rep& rhs,
1553 	result.set_nan();
1559 	result.set_inf( lhs.m_sign * rhs.m_sign );
1564 	result.set_zero( lhs.m_sign * rhs.m_sign );
1579     result.resize_to( new_size );
1580     result.m_mant.clear();
1581     result.m_wp    = new_wp;
1582     result.m_sign  = new_sign;
1583     result.m_state = scfx_rep::normal;
1588     half_word *t = result.m_mant.half_addr();
1613     result.find_sw();
1614     result.round( max_wl );
1625     scfx_rep& result = *new scfx_rep;
1634 	result.set_nan();
1635 	return &result;
1640 	result.set_inf( lhs.m_sign * rhs.m_sign );
1641 	return &result;
1646 	result.set_zero( lhs.m_sign * rhs.m_sign );
1647 	return &result;
1657     result.resize_to( sc_max( n_word( div_wl ) + 1, min_mant ) );
1658     result.m_mant.clear();
1659     result.m_sign = lhs.m_sign * rhs.m_sign;
1672     result_index = (result.size() - c) * bits_in_word + msb_res % bits_in_word;
1673     result.m_wp   = (result.size() - c) - msb_res / bits_in_word;
1695 	    result.set_bin( result_index );
1707 	int index = result_index + 1 - result.m_wp * bits_in_word;
1709 	scfx_index x = result.calc_indices( index );
1710 	scfx_index x1 = result.calc_indices( index + 1 );
1712 	if( result.o_bit_at( x ) && result.o_bit_at( x1 ) )
1713 	    result.q_incr( x );
1715 	result.m_r_flag = true;
1718     result.find_sw();
1720     return &result;
2468     scfx_mant *result = new scfx_mant( new_size );
2470     result->clear();
2476 	(*result)[j+shift] = m_mant[j];
2479     return result;
2622     bool result = ( m_mant[x.wi()] & ( 1 << x.bi() ) ) != 0;
2626     return result;