Arguments

 

position

   OpenVMS usage:longword_signed
   type:         longword (signed)
   access:       read only
   mechanism:    by reference

   Position (relative to the base address) of the first bit in the
   field LIB$EXTZV extracts. The position argument is the address of
   a signed longword integer containing the position.
 

size

   OpenVMS usage:byte_unsigned
   type:         byte (unsigned)
   access:       read only
   mechanism:    by reference

   Size of the bit field LIB$EXTZV extracts. The size argument is
   the address of an unsigned byte containing the size. The maximum
   size is 32 bits.
 

base-address

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value

   Base address of the bit field LIB$EXTZV extracts. The base-
   address argument is an unsigned longword containing the base
   address.