Write an ANNA assembly program (top_four.ac) that finds the four largest numbers entered by the user. Initially, the program continually asks the user to enter numbers. As soon as a negative value is entered, compute which numbers are the top four (largest) numbers. For instance, if the user entered 2, 6, 7, 6, 6, 7, 6, 17, 15 -1; the program should print 17, 15, 7, 7 (the four largest numbers in the sequence). If the user enters a negative number at the beginning, print 0. If the user enters four or fewer numbers, print all the numbers as output. Notes: The goal of this problem is to exercise storing, retrieving, and scanning the numbers stored in memory. Therefore a solution where you keep track of the max four numbers in registers as the numbers are entered is not acceptable. Such a solution will receive a maximum of 15 points for this problem. Do not keep track of everything in the input loop. You will need to store all numbers entered by the user in memory. Store all numbers entered into a growing array. The array should be the last item in your data section so it can grow as large as necessary. You may assume there is enough memory to hold all numbers entered by the user.

Use registers r1 r2 r3 r4 r5 r6 r7