permutations: A programmer created some code that keeps producing incorrect results. Very incorrect results. It almost...

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permutations: A programmer created some code that keeps producing incorrect results. Very incorrect results. It almost seems sub sp, sp, #8 // calling other fn's str Ir, (sp,#0] // Need to save LR like random numbers are being returned. sub x9, x0, x1 // X9 <- N-K The programmer was building a function to calculate the number of permutations of K objects chosen out of N objects. This function is expected to have two arguments, N // XO <- factorial(N) bl factorial and K, in that order. It is expected to return. mov x10, x0 // Put N! in x10 It is making use of a factorial function that already exists and // Xo <- N-K // Xo <- factorial(N-K) is already proven to work. All numbers will be unsigned mov x0, x9 bl factorial numbers. Nis always greater than or equal to K. udiv x0, x10, x0 // XO = N!/(N-K)! Why is the code for this function returning incorrect results? What needs to be done to fix it? Idr Ir, [sp,#0] // Restore LR add sp, sp, #8 // Reset the stack ret permutations: A programmer created some code that keeps producing incorrect results. Very incorrect results. It almost seems sub sp, sp, #8 // calling other fn's str Ir, (sp,#0] // Need to save LR like random numbers are being returned. sub x9, x0, x1 // X9 <- N-K The programmer was building a function to calculate the number of permutations of K objects chosen out of N objects. This function is expected to have two arguments, N // XO <- factorial(N) bl factorial and K, in that order. It is expected to return. mov x10, x0 // Put N! in x10 It is making use of a factorial function that already exists and // Xo <- N-K // Xo <- factorial(N-K) is already proven to work. All numbers will be unsigned mov x0, x9 bl factorial numbers. Nis always greater than or equal to K. udiv x0, x10, x0 // XO = N!/(N-K)! Why is the code for this function returning incorrect results? What needs to be done to fix it? Idr Ir, [sp,#0] // Restore LR add sp, sp, #8 // Reset the stack ret

Answer rating: 100% (QA)

Answer solution The code has some runtime errors in it including in it including how the N and K are ... View the full answer