<<<<<< TIME POSE SUBROUTINE >>>>>>>>>

PAUSE

If they want to quit, do so

    <<<<<< 4 BOTTOM LINES CLEANING SUBROUTINE >>>>>>

BOTCLEAN

If they want to quit, do so

ENCORE5

    <<<<<< REVIEW CLEANING SUBROUTINE >>>>>>

CLEAN

If they want to quit, do so

ENCORE

    <<<<<< CLEAN THE INSIDE OF BOUNDED ARE ONLY >>>>>

BOX

                       ILLUSTRATION                     

GO

  Let's take a closer look at the preceding example.

   #ifdef   VAX

        wordsize = 32;

   #else

        wordsize = 16;

   #ifndef MC68000

        clib = "/usr/lib/common";

   #else    /* for #ifndef   */

        clib = "/usr/lib/mc68";

   #endif      /* for #infndef  */

   #endif      /* for #ifdef    */

  If the constant MC6800 is defined, and the constant VAX is undefined,

  the effect is as shown on the following screen.

   #ifdef   VAX

        wordsize = 32;

   #else

        wordsize = 16; 

   #ifndef MC68000

        clib = "/usr/lib/common";

   #else    /* for #ifndef   */

        clib = "/usr/lib/mc68"; 

   #endif      /* for #infndef  */

   #endif      /* for #ifdef    */

  Note, the statements that will be 

  compiled are highlighted!