BUFFER

Data structure inside INTCRF containing the input/output buffers for the 
bios call. 

typedef struct _BUFFER {
  BYTE      bBufferType;  /*  Input buffer. */
  BYTE      bReserved;    /*  Reserved */
  BYTE      bSelCRF;      /*  CRF flag for the selector. */
  BYTE      bOffCRF;      /*  CRF flag for the offset. */
  VOID      pAddress;     /*  Linear address of the buffer. */
  ULONG     ulSize;
} BUFFER;

typedef BUFFER *PBUFFER;