1. The function fun a has the overall structure shown below: long fun a(unsigned long x){ long val 0; while ( ){ } = return val; # x in %rdi fun a: .L6: .L5: mov imp sh.ca $0, %eax .L5 %rdi, %rax %rdi # shift right 1 testa %rdi, %rdi ine .L6 andl $1, %eax ret } The gcc C compiler generates the x86-64 assembly code on the right. Reverse engineer this assembly code and fill in the missing parts of the fun a definition so the C code does the same thing.