v4.0/src/H/SYSVAR.H

   1 struct sysVarsType
   2 {
   3         long    pDPB ;          /* pointer to DPB chain                    */
   4         long    pSFT ;          /* pointer to System File Table            */
   5         long    pClock ;        /* pointer to clock device                 */
   6         long    pCon ;          /* pointer to CON device                   */
   7         unsigned maxSec ;       /* size of largest physical sector         */
   8         long    pBuf ;          /* pointer to buffer cache                 */
   9         long    pCDS ;          /* pointer to Current Dirs                 */
  10         long    pFCBSFT ;       /* pointer to FCB sftable                  */
  11         unsigned cKeep ;        /* number of un-recyclable FCBs            */
  12         char    cDrv ;          /* maximum number of physical drives       */
  13         char    cCDS ;          /* number of Current Dirs                  */
  14 #ifdef DOS4
  15         long    pDEVHLP ;       /* ptr DOS DevHlp routine                  */
  16 #endif
  17         long    pDEV ;          /* pointer to device list                  */
  18         unsigned attrNUL ;      /* attributes of NUL device                */
  19         unsigned stratNUL ;     /* strategy entry point of NUL dev         */
  20         unsigned intNUL ;       /* interrupt entry point of NUL dev        */
  21         char    namNUL[8] ;     /* name of NUL device                      */
  22         char    fSplice ;       /* TRUE => splices are in effect           */
  23         unsigned ibmdos_size ;  /* ;AN000; size in paragraphs              */
  24         long    ifs_doscall ;   /* ;AN000; IFS serv routine entry          */
  25         long    ifs ;           /* ;AN000; IFS header chain                */
  26         unsigned buffers ;      /* ;AN000; BUFFERS= values (m,n)           */
  27         char    boot_drive ;    /* ;AN000; boot drive A=1 B=2...           */
  28         char    dwmove ;        /* ;AN000; 1 if 386 machine                */
  29 } ;
  30 \1a