user: Converte this assembly snippet into its equivalent C code:

```asm
<fib>:
  endbr64
  mov    %edi,%r10d
  test   %edi,%edi
  je     L343
  cmp    $0x1,%edi
  je     L343
  push   %r15
  lea    -0x2(%rdi),%eax
  xor    %r10d,%r10d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %eax,0x8(%rsp)
  mov    %r10d,0x10(%rsp)
L223:
  mov    0x8(%rsp),%edi
  mov    %edi,%eax
  add    $0x1,%eax
  je     L263
  cmp    $0x1,%eax
  je     L470
  lea    -0x1(%rdi),%eax
  xor    %r8d,%r8d
  mov    %eax,0x4(%rsp)
  mov    %r8d,0x14(%rsp)
L513:
  mov    0x4(%rsp),%edi
  mov    %edi,%eax
  add    $0x1,%eax
  je     L165
  cmp    $0x1,%eax
  je     L458
  lea    -0x1(%rdi),%eax
  xor    %ecx,%ecx
  mov    %eax,0xc(%rsp)
  mov    %ecx,0x18(%rsp)
L265:
  mov    0xc(%rsp),%edi
  mov    %edi,%eax
  add    $0x1,%eax
  je     L514
  cmp    $0x1,%eax
  je     L34
  xor    %ecx,%ecx
  lea    -0x1(%rdi),%r8d
  mov    %ecx,0x1c(%rsp)
  mov    %r8d,%ecx
L267:
  mov    %ecx,%eax
  add    $0x1,%eax
  je     L296
  cmp    $0x1,%eax
  je     L289
  xor    %esi,%esi
  mov    %ecx,0x20(%rsp)
  lea    -0x1(%rcx),%r9d
  mov    %esi,(%rsp)
  mov    %r9d,%r15d
L334:
  mov    %r15d,%eax
  add    $0x1,%eax
  je     L55
  cmp    $0x1,%eax
  je     L524
  lea    -0x1(%r15),%r12d
  xor    %ecx,%ecx
  mov    %r15d,%esi
L304:
  mov    %r12d,%eax
  add    $0x1,%eax
  je     L95
  cmp    $0x1,%eax
  je     L305
  xor    %ebx,%ebx
  lea    -0x1(%r12),%ebp
  mov    %r12d,%edx
  mov    %ebx,%r12d
L337:
  mov    %ebp,%eax
  add    $0x1,%eax
  je     L452
  cmp    $0x1,%eax
  je     L431
  mov    %ebp,%eax
  lea    -0x1(%rbp),%ebx
  xor    %r14d,%r14d
  mov    %ecx,%ebp
  mov    %eax,%ecx
L217:
  mov    %ebx,%r13d
  add    $0x1,%r13d
  je     L24
  cmp    $0x1,%r13d
  je     L336
  mov    %ebx,0x24(%rsp)
  xor    %r15d,%r15d
  mov    %esi,%ebx
L260:
  lea    -0x1(%r13),%edi
  mov    %ecx,0x2c(%rsp)
  mov    %edx,0x28(%rsp)
  call   <fib>
  mov    0x28(%rsp),%edx
  mov    0x2c(%rsp),%ecx
  add    %eax,%r15d
  sub    $0x2,%r13d
  je     L14
  cmp    $0x1,%r13d
  jne    L260
  mov    %ebx,%esi
  mov    0x24(%rsp),%ebx
  add    $0x1,%r15d
L106:
  add    %r15d,%r14d
  test   %ebx,%ebx
  je     L142
  cmp    $0x1,%ebx
  jne    L24
L336:
  mov    %ecx,%eax
  add    $0x1,%r14d
  mov    %ebp,%ecx
  mov    %eax,%ebp
  add    %r14d,%r12d
  test   %ebp,%ebp
  je     L344
L463:
  cmp    $0x1,%ebp
  jne    L452
L431:
  mov    %r12d,%ebx
  mov    %edx,%r12d
  add    $0x1,%ebx
L73:
  add    %ebx,%ecx
  test   %r12d,%r12d
  jne    L201
  mov    %esi,%r15d
  mov    %ecx,%r14d
  add    %r14d,(%rsp)
  mov    (%rsp),%esi
  test   %r15d,%r15d
  jne    L59
L21:
  mov    0x20(%rsp),%ecx
  add    %esi,0x1c(%rsp)
  test   %ecx,%ecx
  je     L453
L266:
  cmp    $0x1,%ecx
  je     L289
L296:
  sub    $0x2,%ecx
  jmp    L267
L452:
  sub    $0x2,%ebp
  jmp    L337
L201:
  cmp    $0x1,%r12d
  jne    L95
L305:
  mov    %ecx,%r14d
  mov    %esi,%r15d
  add    $0x1,%r14d
  add    %r14d,(%rsp)
  mov    (%rsp),%esi
  test   %r15d,%r15d
  je     L21
L59:
  cmp    $0x1,%r15d
  je     L524
L55:
  sub    $0x2,%r15d
  jmp    L334
L95:
  sub    $0x2,%r12d
  jmp    L304
L142:
  mov    %ecx,%eax
  mov    %ebp,%ecx
  add    %r14d,%r12d
  mov    %eax,%ebp
  test   %ebp,%ebp
  jne    L463
L344:
  mov    %r12d,%ebx
  mov    %edx,%r12d
  jmp    L73
  nopl   (%rax)
L14:
  mov    %ebx,%esi
  mov    0x24(%rsp),%ebx
  jmp    L106
L524:
  mov    (%rsp),%esi
  mov    0x20(%rsp),%ecx
  add    $0x1,%esi
  add    %esi,0x1c(%rsp)
  test   %ecx,%ecx
  jne    L266
L453:
  mov    0x1c(%rsp),%ecx
  add    %ecx,0x18(%rsp)
  mov    0xc(%rsp),%ecx
  test   %ecx,%ecx
  jne    L51
L526:
  mov    0x4(%rsp),%edx
  mov    0x18(%rsp),%ecx
  add    %ecx,0x14(%rsp)
  test   %edx,%edx
  jne    L465
L457:
  mov    0x14(%rsp),%r8d
  jmp    L510
L24:
  sub    $0x2,%ebx
  jmp    L217
L289:
  mov    0x1c(%rsp),%ecx
  add    $0x1,%ecx
  add    %ecx,0x18(%rsp)
  mov    0xc(%rsp),%ecx
  test   %ecx,%ecx
  je     L526
L51:
  cmpl   $0x1,0xc(%rsp)
  je     L34
L514:
  subl   $0x2,0xc(%rsp)
  jmp    L265
L34:
  mov    0x18(%rsp),%ecx
  mov    0x4(%rsp),%edx
  add    $0x1,%ecx
  add    %ecx,0x14(%rsp)
  test   %edx,%edx
  je     L457
L465:
  cmpl   $0x1,0x4(%rsp)
  je     L458
L165:
  subl   $0x2,0x4(%rsp)
  jmp    L513
L458:
  mov    0x14(%rsp),%r8d
  add    $0x1,%r8d
L510:
  mov    0x8(%rsp),%eax
  add    %r8d,0x10(%rsp)
  test   %eax,%eax
  je     L20
  cmpl   $0x1,0x8(%rsp)
  jne    L263
L470:
  mov    0x10(%rsp),%r10d
  add    $0x1,%r10d
L18:
  add    $0x38,%rsp
  mov    %r10d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L263:
  subl   $0x2,0x8(%rsp)
  jmp    L223
L343:
  mov    %r10d,%eax
  ret
L20:
  mov    0x10(%rsp),%r10d
  jmp    L18
```

assistant: ```c
int fib(int num) {
  if (num == 0)
    return 0;
  else if (num == 1)
    return 1;
  return fib(num - 1) + fib(num - 2);
}
```