$EXPREG

   Adds a specified number of new virtual pages to a process's
   program region or control region for the execution of the current
   image. Expansion occurs at the current end of that region's
   virtual address space.

   Format

     SYS$EXPREG  pagcnt ,[retadr] ,[acmode] ,[region]

   C Prototype

     int sys$expreg  (unsigned int pagcnt, struct _va_range *retadr,

                     unsigned int acmode, char region);
 

Additional information available:

Arguments