How to Warm or Cold Boot Computer

 








  PRODUCT  :  Borland C++                            NUMBER  :  708

  VERSION  :  2.0

       OS  :  DOS

     DATE  :  September 3, 1992                        PAGE  :  1/2


    TITLE  :  How to Warm or Cold Boot Computer





  /********************************************************************

  This code will let the user specify whether to perform a cold or

  warm boot based on the command line option (Warm boot: 'W' or

  'S'; any other character results in a cold boot).

  *********************************************************************/


  #include <stdio.h>

  #include <dos.h>

  #include <ctype.h>


  int main (int argc, char *argv[])

  {

    void (far *bootsystem) (void);


    if ((toupper (argv[1][0]) == 'W')

       || (toupper (argv[1][0]) == 'S'))

        { /* Setting this memory location to this value will result

             in memory not being checked a.k.a. Warm Boot    */


        unsigned far *warm;

        /* Make a far pointer that points to the specified memory

           location that is checked when the system is rebooted  */

        warm = MK_FP (0x0000, 0x0472);


        /* Assign constant to farpointer indicating that memory is

           not to be checked

        */

        *warm = 0x1234;

        puts ("\nWarm boot in progress...\n");

       }

    else     /* memory will be checked a.k.a. Cold Boot */

      puts ("\nCold boot in progress...\n");


      /* Assign far function pointer to the required far pointer

         for reboot */

    bootsystem = MK_FP (0xFFFF, 0x0000);


    /* Invoke the reboot process */

    (*bootsystem) ();


    return (0);

  }















  PRODUCT  :  Borland C++                            NUMBER  :  708

  VERSION  :  2.0

       OS  :  DOS

     DATE  :  September 3, 1992                        PAGE  :  2/2


    TITLE  :  How to Warm or Cold Boot Computer





  DISCLAIMER: You have the right to use this technical information

  subject to the terms of the No-Nonsense License Statement that

  you received with the Borland product to which this information

  pertains.














































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