Important Notice

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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Construct:    Data Description Entry
 
  Function:     Reserves and names an area of memory for storing an
                item of data, and describes the data to be stored
                there.
 
  Syntax:       Which format?  ◄Data-name►       ◄RENAMES►
                               ◄Condition-name►   Constant-name
 
                                   ┌───────────────────────┐
                                   ▼                       │
  ►►─78 constant-name VALUE─┬──┬───value─┬─────────┬─value──────. ─►◄
                            └IS┘         └┬─ + ───┬┘
                                          ├─ - ───┤
                                          ├─ * ───┤
                                          ├─ / ───┤
                                          ├─ AND ─┤
                                          └──OR ──┘
 
  where value is:
 
  ►─┬─literal-5─────────────────┬──►
    ├─NEXT──────────────────────┤
    ├─LENGTH─┬──┬─identifier-1──┤
    │        └OF┘               │
    └─START─┬──┬─identifier-2───┘
            └OF┘
                                    -♦-