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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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Operator Summary►  ◄Summary►
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  Syntax: ?
 
   Used as an initializer in data declarations; indicates a value that
   the assembler allocates but does not initialize. Can be used alone
   or with DUP, as in the following examples:
 
   foo      DW      ?           ; Allocate one uninitialized word
   foo2     DB      ?,?,?       ; Allocate three uninitialized bytes
   foo3     DB      20 DUP (?)  ; Allocate 20 uninitialized bytes
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