user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<fibonacci>:
  endbr64
  mov    %rdi,%r10
  test   %rdi,%rdi
  je     L111
  cmp    $0x1,%rdi
  je     L111
  push   %r15
  lea    -0x2(%rdi),%rax
  xor    %r10d,%r10d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rax,0x10(%rsp)
  mov    %r10,0x20(%rsp)
L525:
  mov    0x10(%rsp),%rdi
  mov    %rdi,%rax
  add    $0x1,%rax
  je     L143
  cmp    $0x1,%rax
  je     L216
  lea    -0x1(%rdi),%rax
  xor    %r8d,%r8d
  mov    %rax,0x8(%rsp)
  mov    %r8,0x28(%rsp)
L523:
  mov    0x8(%rsp),%rdi
  mov    %rdi,%rax
  add    $0x1,%rax
  je     L357
  cmp    $0x1,%rax
  je     L449
  lea    -0x1(%rdi),%rax
  xor    %ecx,%ecx
  mov    %rax,0x18(%rsp)
  mov    %rcx,0x30(%rsp)
L82:
  mov    0x18(%rsp),%rdi
  mov    %rdi,%rax
  add    $0x1,%rax
  je     L380
  cmp    $0x1,%rax
  je     L242
  xor    %ecx,%ecx
  lea    -0x1(%rdi),%r8
  mov    %rcx,0x38(%rsp)
  mov    %r8,%rcx
L228:
  mov    %rcx,%rax
  add    $0x1,%rax
  je     L225
  cmp    $0x1,%rax
  je     L375
  xor    %esi,%esi
  mov    %rcx,0x40(%rsp)
  lea    -0x1(%rcx),%r9
  mov    %rsi,(%rsp)
  mov    %r9,%r15
L48:
  mov    %r15,%rax
  add    $0x1,%rax
  je     L460
  cmp    $0x1,%rax
  je     L266
  lea    -0x1(%r15),%r12
  xor    %ecx,%ecx
  mov    %r15,%rsi
L250:
  mov    %r12,%rax
  add    $0x1,%rax
  je     L215
  cmp    $0x1,%rax
  je     L507
  xor    %ebx,%ebx
  lea    -0x1(%r12),%rbp
  mov    %r12,%rdx
  mov    %rbx,%r12
L10:
  mov    %rbp,%rax
  add    $0x1,%rax
  je     L316
  cmp    $0x1,%rax
  je     L25
  mov    %rbp,%rax
  lea    -0x1(%rbp),%rbx
  xor    %r14d,%r14d
  mov    %rcx,%rbp
  mov    %rax,%rcx
L358:
  mov    %rbx,%r13
  add    $0x1,%r13
  je     L308
  cmp    $0x1,%r13
  je     L220
  mov    %rbx,0x48(%rsp)
  xor    %r15d,%r15d
  mov    %rsi,%rbx
L442:
  lea    -0x1(%r13),%rdi
  mov    %rcx,0x58(%rsp)
  mov    %rdx,0x50(%rsp)
  call   <fibonacci>
  mov    0x50(%rsp),%rdx
  mov    0x58(%rsp),%rcx
  add    %rax,%r15
  sub    $0x2,%r13
  je     L37
  cmp    $0x1,%r13
  jne    L442
  mov    %rbx,%rsi
  mov    0x48(%rsp),%rbx
  add    $0x1,%r15
L381:
  add    %r15,%r14
  test   %rbx,%rbx
  je     L5
  cmp    $0x1,%rbx
  jne    L308
L220:
  mov    %rcx,%rax
  add    $0x1,%r14
  mov    %rbp,%rcx
  mov    %rax,%rbp
  add    %r14,%r12
  test   %rbp,%rbp
  je     L232
L185:
  cmp    $0x1,%rbp
  jne    L316
L25:
  mov    %r12,%rbx
  mov    %rdx,%r12
  add    $0x1,%rbx
L339:
  add    %rbx,%rcx
  test   %r12,%r12
  jne    L283
  mov    %rsi,%r15
  mov    %rcx,%r14
  add    %r14,(%rsp)
  mov    (%rsp),%rsi
  test   %r15,%r15
  jne    L341
L321:
  mov    0x40(%rsp),%rcx
  add    %rsi,0x38(%rsp)
  test   %rcx,%rcx
  je     L165
L78:
  cmp    $0x1,%rcx
  je     L375
L225:
  sub    $0x2,%rcx
  jmp    L228
L316:
  sub    $0x2,%rbp
  jmp    L10
L283:
  cmp    $0x1,%r12
  jne    L215
L507:
  mov    %rcx,%r14
  mov    %rsi,%r15
  add    $0x1,%r14
  add    %r14,(%rsp)
  mov    (%rsp),%rsi
  test   %r15,%r15
  je     L321
L341:
  cmp    $0x1,%r15
  je     L266
L460:
  sub    $0x2,%r15
  jmp    L48
L215:
  sub    $0x2,%r12
  jmp    L250
L5:
  mov    %rcx,%rax
  mov    %rbp,%rcx
  add    %r14,%r12
  mov    %rax,%rbp
  test   %rbp,%rbp
  jne    L185
L232:
  mov    %r12,%rbx
  mov    %rdx,%r12
  jmp    L339
  nopl   0x0(%rax,%rax,1)
L37:
  mov    %rbx,%rsi
  mov    0x48(%rsp),%rbx
  jmp    L381
L266:
  mov    (%rsp),%rsi
  mov    0x40(%rsp),%rcx
  add    $0x1,%rsi
  add    %rsi,0x38(%rsp)
  test   %rcx,%rcx
  jne    L78
L165:
  mov    0x38(%rsp),%rcx
  add    %rcx,0x30(%rsp)
  cmpq   $0x0,0x18(%rsp)
  jne    L411
L113:
  mov    0x30(%rsp),%rcx
  add    %rcx,0x28(%rsp)
  cmpq   $0x0,0x8(%rsp)
  jne    L517
L453:
  mov    0x28(%rsp),%r8
  jmp    L67
  nopl   0x0(%rax,%rax,1)
L308:
  sub    $0x2,%rbx
  jmp    L358
L375:
  mov    0x38(%rsp),%rcx
  add    $0x1,%rcx
  add    %rcx,0x30(%rsp)
  cmpq   $0x0,0x18(%rsp)
  je     L113
L411:
  cmpq   $0x1,0x18(%rsp)
  je     L242
L380:
  subq   $0x2,0x18(%rsp)
  jmp    L82
L242:
  mov    0x30(%rsp),%rcx
  add    $0x1,%rcx
  add    %rcx,0x28(%rsp)
  cmpq   $0x0,0x8(%rsp)
  je     L453
L517:
  cmpq   $0x1,0x8(%rsp)
  je     L449
L357:
  subq   $0x2,0x8(%rsp)
  jmp    L523
L449:
  mov    0x28(%rsp),%r8
  add    $0x1,%r8
L67:
  add    %r8,0x20(%rsp)
  cmpq   $0x0,0x10(%rsp)
  je     L126
  cmpq   $0x1,0x10(%rsp)
  jne    L143
L216:
  mov    0x20(%rsp),%r10
  add    $0x1,%r10
L212:
  add    $0x68,%rsp
  mov    %r10,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L143:
  subq   $0x2,0x10(%rsp)
  jmp    L525
L111:
  mov    %r10,%rax
  ret
L126:
  mov    0x20(%rsp),%r10
  jmp    L212
```

assistant: ```c
long int fibonacci(long int n) {
  if (n == 0)
    return 0;
  else if (n == 1)
    return 1;
  else
    return fibonacci(n - 1) + fibonacci(n - 2);
}
```