Arguments

 

vector

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Vector for which a condition handler is to be established or
   removed. The vector argument is a longword value. The value
   0 (the default) specifies the primary exception vector; the
   value 1, the secondary vector; and the value 2, the last chance
   exception vector.
 

addres

   OpenVMS usage:procedure
   type:         procedure value
   access:       call without stack unwinding
   mechanism:    by reference
   Condition handler address to be established for the exception
   vector specified by the vector argument. The addres argument is
   a longword value containing the address of the condition handler
   routine.

   If you do not specify addres or specify it as the value 0, the
   condition handler address already established for the specified
   vector is removed; that is, the contents of the longword vector
   is set to 0.
 

acmode

   OpenVMS usage:access_mode
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Access mode for which the exception vector is to be modified.
   The acmode argument is a longword containing the access mode. The
   $PSLDEF macro defines symbols for the four access modes.

   The most privileged access mode used is the access mode of the
   caller. Exception vectors for access modes more privileged than
   the caller's access mode cannot be modified.
 

prvhnd

   OpenVMS usage:procedure value
   type:         longword (unsigned)
   access:       write only
   mechanism:    by reference
   Previous condition handler address contained by the specified
   exception vector. The prvhnd argument is the address of a
   longword into which $SETEXV writes the handler's procedure value.