Hexadecimal number > 0xffffffff non-portable at C:\test\mandlebrot\doubleDouble.pl line 57.
Hexadecimal number > 0xffffffff non-portable at C:\test\mandlebrot\doubleDouble.pl line 58.
Hexadecimal number > 0xffffffff non-portable at C:\test\mandlebrot\doubleDouble.pl line 59.