Write an assembly language program that reads from the keyboard a positive integer N (N > 0) and finds and displays on the screen all the divisors of N and all the multiples of N up to 20N. Your program must satisfy the following: Allow the user to do any number of runs entering a new value for N each time. Define and use the following 4 procedures: ReadN: asks the user to enter a positive integer N (N > 0) and reads it. If the user enters an invalid value, it displays the error message “Invalid. It must be positive. Try again.”, and reads again until a valid value is entered. It returns the entered valid value in EAX. FindDivisors: finds and displays all the divisors of N. You must optimize the loop to run as efficiently as possible. The value of N is passed to the procedure in EAX. FindMultiples: calculates and displays on the screen all the multiples of N up to 20N. The value of N is passed to the procedure in EAX. AnotherRun: asks the user “Do you want another run? (Y/N): ”. If the user enters ‘Y’ or ‘y’, it returns 1 in the AL register otherwise it returns 0 in the AL register. The sample run on the next page shows how your program should run.
Write an assembly language program that reads from the keyboard a positive integer N (N > 0) and finds and displays on the screen all the divisors of N and all the multiples of N up to 20N. Your program must satisfy the following: Allow the user to do any number of runs entering a new value for N each time. Define and use the following 4 procedures: ReadN: asks the user to enter a positive integer N (N > 0) and reads it. If the user enters an invalid value, it displays the error message “Invalid. It must be positive. Try again.”, and reads again until a valid value is entered. It returns the entered valid value in EAX. FindDivisors: finds and displays all the divisors of N. You must optimize the loop to run as efficiently as possible. The value of N is passed to the procedure in EAX. FindMultiples: calculates and displays on the screen all the multiples of N up to 20N. The value of N is passed to the procedure in EAX. AnotherRun: asks the user “Do you want another run? (Y/N): ”. If the user enters ‘Y’ or ‘y’, it returns 1 in the AL register otherwise it returns 0 in the AL register. The sample run on the next page shows how your program should run.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Write an assembly language program that reads from the keyboard a positive integer N (N > 0) and finds and displays on the screen all the divisors of N and all the multiples of N up to 20N. Your program must satisfy the following: Allow the user to do any number of runs entering a new value for N each time. Define and use the following 4 procedures: ReadN: asks the user to enter a positive integer N (N > 0) and reads it. If the user enters an invalid value, it displays the error message “Invalid. It must be positive. Try again.”, and reads again until a valid value is entered. It returns the entered valid value in EAX. FindDivisors: finds and displays all the divisors of N. You must optimize the loop to run as efficiently as possible. The value of N is passed to the procedure in EAX. FindMultiples: calculates and displays on the screen all the multiples of N up to 20N. The value of N is passed to the procedure in EAX. AnotherRun: asks the user “Do you want another run? (Y/N): ”. If the user enters ‘Y’ or ‘y’, it returns 1 in the AL register otherwise it returns 0 in the AL register. The sample run on the next page shows how your program should run.
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