or download this
print unpack('n', pack('H*', '03e8')), "\n"; # 1000
print unpack('v', reverse pack('H*', '03e8')), "\n"; # 1000
print unpack('v', pack('H*', 'e803')), "\n"; # 1000
print unpack('n', reverse pack('H*', 'e803')), "\n"; # 1000
or download this
print unpack('n', pack('H*', 'ffff')), "\n"; # 65535
print unpack('v', reverse pack('H*', 'ffff')), "\n"; # 65535
...
print unpack('v', pack('H*', 'ffff')), "\n"; # 65535
print unpack('v', reverse pack('H*', 'ffff')), "\n"; # 65535
print unpack('n', pack('H*', 'ffff')), "\n"; # 65535