user: What is the c source code of the assembly code below:

```asm
<fibrec>:
  endbr64
  push   %r15
  mov    %edi,%eax
  lea    D8(%rip),%r15
  push   %r14
  and    $0x1,%eax
  mov    %edi,%r14d
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %eax,0x30(%rsp)
  movl   $0x0,0xc(%rsp)
L177:
  mov    %r14d,%esi
  mov    %r15,%rdi
  call   <printf@plt>
  cmp    0x30(%rsp),%r14d
  je     L145
  lea    -0x1(%r14),%eax
  movl   $0x0,0x14(%rsp)
  mov    %eax,0x10(%rsp)
  mov    %r14d,0x38(%rsp)
L46:
  mov    0x10(%rsp),%ebx
  mov    %r15,%rdi
  mov    %ebx,%esi
  call   <printf@plt>
  cmp    $0x1,%ebx
  jbe    L99
  mov    0x10(%rsp),%eax
  movl   $0x0,0x18(%rsp)
  lea    -0x1(%rax),%r14d
  mov    %r14d,0x24(%rsp)
L163:
  mov    0x24(%rsp),%ebx
  mov    %r15,%rdi
  mov    %ebx,%esi
  call   <printf@plt>
  cmp    $0x1,%ebx
  jbe    L105
  mov    0x24(%rsp),%eax
  movl   $0x0,0x20(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x1c(%rsp)
L117:
  mov    0x1c(%rsp),%ebx
  mov    %r15,%rdi
  mov    %ebx,%esi
  call   <printf@plt>
  cmp    $0x1,%ebx
  jbe    L66
  mov    0x1c(%rsp),%eax
  xor    %r12d,%r12d
  lea    -0x1(%rax),%r14d
L178:
  mov    %r14d,%esi
  mov    %r15,%rdi
  call   <printf@plt>
  cmp    $0x1,%r14d
  jbe    L129
  xor    %r13d,%r13d
  mov    %r12d,0x4(%rsp)
  lea    -0x1(%r14),%ebx
  mov    %r13d,%r12d
L102:
  mov    %ebx,%esi
  mov    %r15,%rdi
  call   <printf@plt>
  cmp    $0x1,%ebx
  jbe    L119
  movl   $0x0,0x8(%rsp)
  lea    -0x1(%rbx),%ebp
  mov    %ebx,0x28(%rsp)
  mov    %ebp,%r13d
  mov    %r12d,0x2c(%rsp)
L49:
  mov    %r13d,%esi
  mov    %r15,%rdi
  call   <printf@plt>
  cmp    $0x1,%r13d
  jbe    L31
  lea    -0x2(%r13),%eax
  xor    %ebx,%ebx
  mov    %r14d,0x3c(%rsp)
  lea    -0x1(%r13),%r12d
  mov    %eax,0x34(%rsp)
  mov    %eax,%ebp
  mov    %ebx,%r14d
L162:
  mov    %r12d,%esi
  mov    %r15,%rdi
  call   <printf@plt>
  cmp    $0x1,%r12d
  jbe    L114
  mov    %ebp,%ebx
  mov    %r15,%rdi
  xor    %r13d,%r13d
  mov    %ebx,%esi
  call   <printf@plt>
  cmp    $0x1,%ebx
  jbe    L61
L1:
  lea    -0x1(%rbx),%edi
  sub    $0x2,%ebx
  call   <fibrec>
  mov    %ebx,%esi
  mov    %r15,%rdi
  add    %eax,%r13d
  call   <printf@plt>
  cmp    $0x1,%ebx
  ja     L1
  nopl   0x0(%rax)
L61:
  sub    $0x2,%r12d
  lea    0x1(%r14,%r13,1),%r14d
  sub    $0x2,%ebp
  jmp    L162
L119:
  mov    %r12d,%r13d
  mov    0x4(%rsp),%r12d
  sub    $0x2,%r14d
  lea    0x1(%r12,%r13,1),%r12d
  jmp    L178
  nopl   0x0(%rax)
L31:
  mov    0x28(%rsp),%ebx
  mov    0x2c(%rsp),%r12d
  mov    0x8(%rsp),%eax
  sub    $0x2,%ebx
  lea    0x1(%r12,%rax,1),%r12d
  jmp    L102
L129:
  mov    0x20(%rsp),%eax
  subl   $0x2,0x1c(%rsp)
  lea    0x1(%rax,%r12,1),%eax
  mov    %eax,0x20(%rsp)
  jmp    L117
  nopl   0x0(%rax)
L114:
  mov    0x8(%rsp),%eax
  mov    %r14d,%ebx
  mov    0x34(%rsp),%r13d
  mov    0x3c(%rsp),%r14d
  lea    0x1(%rax,%rbx,1),%eax
  mov    %eax,0x8(%rsp)
  jmp    L49
L66:
  mov    0x18(%rsp),%eax
  mov    0x20(%rsp),%edx
  subl   $0x2,0x24(%rsp)
  lea    0x1(%rax,%rdx,1),%eax
  mov    %eax,0x18(%rsp)
  jmp    L163
L105:
  mov    0x14(%rsp),%eax
  mov    0x18(%rsp),%ecx
  subl   $0x2,0x10(%rsp)
  lea    0x1(%rax,%rcx,1),%eax
  mov    %eax,0x14(%rsp)
  jmp    L46
L145:
  mov    0xc(%rsp),%eax
  add    $0x48,%rsp
  pop    %rbx
  pop    %rbp
  add    $0x1,%eax
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L99:
  mov    0xc(%rsp),%eax
  mov    0x14(%rsp),%edx
  mov    0x38(%rsp),%r14d
  lea    0x1(%rax,%rdx,1),%eax
  mov    %eax,0xc(%rsp)
  sub    $0x2,%r14d
  jmp    L177
```

tool_calls: name: unpack_data
arguments: tag: D8
data_type: string

tool: D8: fib(%d)


assistant: ```c
int fibrec(int n) {
  printf("fib(%d)\n", n);
  if ((n == 1) || (n == 0)) {
    return 1;
  } else {
    return fibrec(n - 1) + fibrec(n - 2);
  }
}
```