global start start: mov mov bl SVC sp. #0x1000 // initialize sp ve, #2 rsum #999 sum: sub str str // A: record state of the stack cbz sp, sp. #16 // reserve space for x30 and x19 x30, spl x19, [sp. #8] // save temp register // save link register // 1s n, return if we == mov sub bl add // copy n to wl9 //w = n-1 // recursive call // add result an copy of n rsum w0, w19, we ldr ldr add ret x19, [sp. #8] // restore x19 x30, [sp] sp, sp. #16 // restore link register // release stack storage In the above code, rsum, will be called three times before the recursion finishes. Trace the execution of the above program and state the contents of the stack for the requested conditions If w0 2, what is the contents of the stack at point A:? If w01, what is the contents of the stack at point A:? global start start: mov mov bl SVC sp. #0x1000 // initialize sp ve, #2 rsum #999 sum: sub str str // A: record state of the stack cbz sp, sp. #16 // reserve space for x30 and x19 x30, spl x19, [sp. #8] // save temp register // save link register // 1s n, return if we == mov sub bl add // copy n to wl9 //w = n-1 // recursive call // add result an copy of n rsum w0, w19, we ldr ldr add ret x19, [sp. #8] // restore x19 x30, [sp] sp, sp. #16 // restore link register // release stack storage In the above code, rsum, will be called three times before the recursion finishes. Trace the execution of the above program and state the contents of the stack for the requested conditions If w0 2, what is the contents of the stack at point A:? If w01, what is the contents of the stack at point A