6. (15 pt) Function recur() has its prototype shown below Complete C function recur() corresponding to the IA32 code on the right. int recur(int a[], int n) { recur: pushl %ebp movl %esp, %ebp pushl %ebx subl cmpl $20, %esp Smov ajne movl jmp $0, 12(%ebp) .L2 8(%ebp), %ecx (%ecx), %eax .L3 .L2: 12(%ebp), %eax leal (%ecx, %eax, 4), %eax movl (%eax), %ebx movl 12(%ebp), %eax subli $1, %eax movl %eax, 4(%esp) movl %ecx, (%esp) call recur leal (%ebx,%eax), %eax .L3: addl $20, %esp popl %ebx popl %ebp ret