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2.9.34 Cid

Office

The Cid structure is a command identifier—a 4-byte structure that specifies a command. This element is used in other structures to identify a particular command to be executed.

The 3 least significant bits of the first byte of the structure together form a Cmt value which specifies the command type; the whole structure MUST be interpreted according to this command type, as follows.

Value

Meaning

cmtFci

This structure is a CidFci.

cmtMacro

This structure is a CidMacro.

cmtAllocated

This structure is a CidAllocated.

cmtNil

Specifies that the command identifier is empty and does not specify a command. If the first 3 bits of this command identifier are cmtNil, the value of the entire command identifier MUST be 0xFFFFFFFF.

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