The following code shows the declaration of a structure of type ACE and the prototype for a function test:

A. Use your reverse engineering skills to write C code for test.

B. Describe the data structure that this structure implements and the operation performed by test.

struct ACE { short }; short test (struct ACE *ptr); When the code for fun is compiled, GCC generates the following assembly code: 1 2 3 4 5 6 7 8 V; struct ACE *p; 9 10 short test (struct ACE *ptr) ptr in %rdi test: movl jmp .L3: imulq movq .L2: testq jne rep; ret $1, %eax .L2 (%rdi), %rax 2(%rdi), %rdi %rdi, %rdi .L3