test1 double=10369251
test1 sf    =10369251
test2 double=1660944384
test2 sf    =1660944264 (7 830472132)
test3 double: 1374.5489959717
test3 softfloat: 1374.5312194824 (0x2af43ff0 11)
test4 softfloat: -16.0000000000 (0xe0000000 5)
test4 softfloat: 16.0000000000 (0x20000000 5)
test4 softfloat: 536870911.0000000000 (0x3ffffffe 29)
test4 softfloat: -536870911.0000000000 (0xc0000002 29)
test5 softfloat: 0.0000000000 (0x00000000 -149)
test6 softfloat: 0.0000000000 (0x00000000 -149) -536870912 536870912