Your assignment for this project is to write an assembly language program that checks if the user's input is a valid ISBN number. A sample run of your program might look like:

   linux3% ./a.out

   Enter 10 digit ISBN: 3201541974

   This is a valid ISBN number.

   linux3%

   linux3% ./a.out

   Enter 10 digit ISBN: 0457773706

   This is NOT a valid ISBN number.

   linux3%

   linux3% ./a.out

   Enter 10 digit ISBN: 044101125X

   This is a valid ISBN number.

   linux3%

a trick to remove multiplication and division

    sum4 = 0 ;

    t4 = 0 ;

    for ( i = 0 ; i < 10 ; i++ ) {

       t4 += a[i] ;

       if (t4 >= 11) t4 -= 11 ;

       sum4 += t4 ;

       if (sum4 >= 11) sum4 -= 11 ;

    }

It is this version that you should implement in assembly language.