13.23.3.1 Records of type: vanilla object

These records are composed of 2 words: the second word contains a tagged pointer to a Scheme object. When these records are processed: the tagged pointer is stored into the target word in the data area of the subject code object.

   meta data         data area
  |.........|..........................|

s_code   p_data
  v         v
  |---------|--------------|---|-------| code object
            |..............|...|target word
      ------->displacement   ^
     |                       |
     |     ------------------
     |    |
  |----|----| vanilla object record
   1st  2nd

Records of this type are used when the code object uses a generic Scheme object. Some notable examples:

• The code object representing the implementation of the function:

  (define (doit)
    '(1 2 3))
  

  contains a reference to the list (1 2 3) in its relocation vector.

• The code object representing the implementation of the function:

  (define (doit x)
    (display x))
  

  contains a reference to the storage location gensym of display in its relocation vector.