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19.5 extract

Use the extract command in order to create a temporary memory IO space with the contents of a mapped value.

This command has the following synopsis.

extract :val val [:to ios_name]

Where :val is a mapped value, and :to is the name of the memory IOS to create (or use). The contents of value are copied to the beginning of the memory IOS *ios_name*.

If no :to argument is specified, or if it is the empty string, then the extract command will generate a suitable unique name and use it.