Annotation Named Blocks

A named block can be used to hold any data for any purpose; for example, named blocks can be used to store

• Internal mark data
  
  
• Public mark data
  
  
• Group information
  
  
• Selection operations criteria
  
  
• Access control data

A named block is a block of data that is referenced by an 8-byte name. The data is structured as follows:

8 bytes  =  name of named block

4 bytes  =  size (n) in bytes, of named block data

4 bytes  =  reserved. Only present and necessary with Intel 16-bit format.
  Skip on read and write as zeros.

n bytes  =  named block data