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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Directive Summary►  ◄Summary►  ◄Example►
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  Syntax:  [name] DD initializer [,initializer]...
 
  Allocates and optionally initializes one or more doublewords (4 bytes)
  of global data.
 
  name         The symbol name assigned to the variable. If no name is
               assigned, the data is allocated, but the starting address
               of the variable has no symbolic name.
 
  initializer  A constant expression or question mark (indicating
               uninitialized data). Separate multiple values by commas,
               or use the DUP operator.
 
  See Also:  DB, DW, DQ, DT, DUP
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