unsigned char
vax:                  0 1 0 255 10 100 200 
ieee (big endian):    0 1 0 255 10 100 200 
ieee (little endian): 0 1 0 255 10 100 200 
alpha:                0 1 0 255 10 100 200 
cray:                 0 1 0 255 10 100 200 
