SWAPBYTES - SWAP the BYTES of various  data types			

 swapbytes <stdin [optional parameters]  >stdout 			

 Required parameters:							
 	none								

 Optional parameters:							
 in=float	input type	(float)					
 		=double		(double)				
 		=short		(short)					
 		=ushort		(unsigned short)			
 		=long		(long)					
 		=ulong		(unsigned long)				
 		=int		(int)					

 outpar=/dev/tty		output parameter file, contains the	
				number of values (n1=)			
 			other choices for outpar are: /dev/tty,		
 			/dev/stderr, or a name of a disk file		

 Notes:								
 The byte order of the mantissa of binary data values on PC's and DEC's
 is the reverse of so called "big endian" machines (IBM RS6000, SUN,etc.)
 hence the need for byte-swapping capability. The subroutines in this code
 have been tested for swapping between PCs and	big endian machines, but
 have not been tested for DEC products.				

 Caveat:								
 2 byte short, 4 byte long, 4 byte float, 4 byte int,			
 and 8 bit double assumed.						


 Credits:
	CWP: John Stockwell (Jan 1994)
 Institut fur Geophysik, Hamburg: Jens Hartmann supplied byte swapping
					subroutines