NAME
    GoodID -- Test if an identifier follows the IFF 85 specification.

SYNOPSIS
    isok = GoodID (id)
     d0            d0

    LONG isok, id;

FUNCTION
    Tests the given longword identifier to see if it meets all the EA IFF
    85 specifications for a chunk ID.  If so, it returns non-zero,
    otherwise 0.

INPUTS
    id      - potential 32 bit identifier.

RESULT
    isok    - non-zero if this is a valid ID, 0 otherwise.

EXAMPLE

NOTES

BUGS

SEE ALSO
    GoodType()