user: Demonstrate the C code that generates the assembly output below:

```asm
<fibonnaci>:
  endbr64
  push   %r15
  mov    %rsi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    -0x1(%rdi),%ebx
  sub    $0x58,%rsp
  mov    (%rsi),%eax
  mov    %edi,0xc(%rsp)
  add    $0x1,%eax
  mov    %ebx,(%rsp)
  mov    %eax,(%rsi)
  movl   $0x0,0x10(%rsp)
  cmp    $0x1,%edi
  jbe    L252
  mov    (%rsp),%edx
  add    $0x1,%eax
  mov    %eax,(%r15)
  cmp    $0x1,%edx
  jbe    L107
L180:
  mov    (%rsp),%ebx
  mov    %r15,%r11
  add    $0x1,%eax
  movl   $0x0,0x14(%rsp)
  mov    %eax,(%r11)
  lea    -0x1(%rbx),%ecx
  mov    %ecx,0x4(%rsp)
  mov    0x4(%rsp),%edx
  mov    %ecx,0x20(%rsp)
  cmp    $0x1,%edx
  je     L290
L276:
  mov    0x4(%rsp),%ecx
  mov    %r11,%rsi
  add    $0x1,%eax
  movl   $0x0,0x18(%rsp)
  mov    %eax,(%rsi)
  sub    $0x1,%ecx
  mov    %ecx,0x8(%rsp)
  mov    0x8(%rsp),%edx
  mov    %ecx,0x24(%rsp)
  cmp    $0x1,%edx
  je     L201
L142:
  mov    0x8(%rsp),%ebx
  add    $0x1,%eax
  movl   $0x0,0x1c(%rsp)
  mov    %eax,(%rsi)
  lea    -0x1(%rbx),%ecx
  mov    %ecx,%r11d
  mov    %ecx,0x2c(%rsp)
  mov    %r11d,%edx
  cmp    $0x1,%r11d
  je     L99
L186:
  lea    -0x1(%r11),%ecx
  mov    %ecx,0x28(%rsp)
  mov    %ecx,%ebx
  xor    %ecx,%ecx
L197:
  add    $0x1,%eax
  mov    %ebx,%edx
  lea    -0x3(%rbx),%r12d
  xor    %r15d,%r15d
  mov    %eax,(%rsi)
  cmp    $0x1,%ebx
  je     L128
L178:
  add    $0x1,%eax
  lea    0x2(%r12),%edx
  mov    %eax,(%rsi)
  cmp    $0x1,%edx
  je     L49
  lea    -0x1(%r12),%r14d
  mov    %r12d,%r10d
  xor    %r8d,%r8d
  mov    %r14d,%edx
L176:
  add    $0x1,%eax
  lea    0x2(%rdx),%edi
  mov    %r10d,%ebp
  xor    %r14d,%r14d
  mov    %eax,(%rsi)
  cmp    $0xffffffff,%edx
  je     L289
  add    $0x1,%eax
  mov    %r12d,%r9d
  mov    %ebp,%r13d
  mov    %ebx,%r12d
  mov    %eax,(%rsi)
  xor    %ebx,%ebx
  cmp    $0x1,%ebp
  jbe    L309
  nopl   (%rax)
L121:
  lea    -0x1(%r13),%edi
  mov    %r10d,0x4c(%rsp)
  sub    $0x2,%r13d
  mov    %edx,0x48(%rsp)
  mov    %r9d,0x44(%rsp)
  mov    %r11d,0x40(%rsp)
  mov    %r8d,0x3c(%rsp)
  mov    %ecx,0x38(%rsp)
  mov    %rsi,0x30(%rsp)
  call   <fibonnaci>
  mov    0x30(%rsp),%rsi
  mov    0x38(%rsp),%ecx
  add    %eax,%ebx
  mov    0x3c(%rsp),%r8d
  mov    0x40(%rsp),%r11d
  mov    (%rsi),%eax
  mov    0x44(%rsp),%r9d
  mov    0x48(%rsp),%edx
  mov    0x4c(%rsp),%r10d
  add    $0x1,%eax
  cmp    $0x1,%r13d
  mov    %eax,(%rsi)
  ja     L121
  mov    %ebp,%r13d
  lea    -0x2(%rbp),%edi
  add    $0x1,%eax
  sub    $0x1,%ebp
  and    $0x1,%r13d
  mov    %eax,(%rsi)
  add    %ebx,%r13d
  add    %r13d,%r14d
  cmp    $0x1,%ebp
  jbe    L206
L120:
  mov    %edi,%ebp
  add    $0x1,%eax
  xor    %ebx,%ebx
  mov    %eax,(%rsi)
  mov    %ebp,%r13d
  cmp    $0x1,%ebp
  ja     L121
L309:
  lea    -0x2(%rbp),%edi
  add    $0x1,%eax
  sub    $0x1,%ebp
  add    %r13d,%r14d
  mov    %eax,(%rsi)
  cmp    $0x1,%ebp
  ja     L120
L206:
  mov    %edx,%edi
  mov    %r12d,%ebx
  mov    %r9d,%r12d
  and    $0x1,%edi
  add    %r14d,%edi
L289:
  add    %edi,%r8d
  add    $0x1,%eax
  lea    -0x2(%rdx),%edi
  add    $0x1,%edx
  mov    %eax,(%rsi)
  sub    $0x2,%r10d
  cmp    $0x1,%edx
  jbe    L270
  mov    %edi,%edx
  jmp    L176
  nop
L270:
  mov    %r12d,%edx
  and    $0x1,%edx
  add    %r8d,%edx
L49:
  add    %edx,%r15d
  add    $0x1,%eax
  lea    -0x2(%r12),%edx
  add    $0x1,%r12d
  mov    %eax,(%rsi)
  cmp    $0x1,%r12d
  jbe    L61
  mov    %edx,%r12d
  jmp    L178
L61:
  mov    %ebx,%edx
  lea    -0x2(%rbx),%edi
  add    $0x1,%eax
  sub    $0x1,%ebx
  and    $0x1,%edx
  mov    %eax,(%rsi)
  add    %r15d,%edx
  add    %edx,%ecx
  cmp    $0x1,%ebx
  jbe    L307
L213:
  mov    %edi,%ebx
  jmp    L197
L128:
  add    $0x1,%eax
  sub    $0x1,%ebx
  mov    $0xffffffff,%edi
  add    %edx,%ecx
  mov    %eax,(%rsi)
  cmp    $0x1,%ebx
  ja     L213
L307:
  mov    %r11d,%edx
  add    $0x1,%eax
  lea    -0x2(%r11),%edi
  and    $0x1,%edx
  mov    %eax,(%rsi)
  add    %ecx,%edx
  add    %edx,0x1c(%rsp)
  cmpl   $0x1,0x28(%rsp)
  jbe    L111
L139:
  mov    %edi,%r11d
  add    $0x1,%eax
  mov    %eax,(%rsi)
  mov    %r11d,%edx
  cmp    $0x1,%r11d
  jne    L186
L99:
  add    $0x1,%eax
  add    %edx,0x1c(%rsp)
  mov    $0xffffffff,%edi
  movl   $0x0,0x28(%rsp)
  cmpl   $0x1,0x28(%rsp)
  mov    %eax,(%rsi)
  ja     L139
L111:
  mov    0x8(%rsp),%edi
  mov    0x1c(%rsp),%edx
  add    $0x1,%eax
  mov    %eax,(%rsi)
  lea    -0x2(%rdi),%ecx
  and    $0x1,%edi
  add    %edi,%edx
  add    %edx,0x18(%rsp)
  cmpl   $0x1,0x2c(%rsp)
  jbe    L6
L26:
  mov    %ecx,0x8(%rsp)
  mov    0x8(%rsp),%edx
  add    $0x1,%eax
  mov    %eax,(%rsi)
  cmp    $0x1,%edx
  jne    L142
L201:
  add    $0x1,%eax
  add    %edx,0x18(%rsp)
  mov    $0xffffffff,%ecx
  movl   $0x0,0x2c(%rsp)
  cmpl   $0x1,0x2c(%rsp)
  mov    %eax,(%rsi)
  ja     L26
L6:
  mov    0x4(%rsp),%edi
  mov    0x18(%rsp),%edx
  mov    %rsi,%r11
  lea    -0x2(%rdi),%ecx
  and    $0x1,%edi
  add    %edi,%edx
L301:
  add    $0x1,%eax
  add    %edx,0x14(%rsp)
  cmpl   $0x1,0x24(%rsp)
  mov    %eax,(%r11)
  jbe    L232
  mov    %ecx,0x4(%rsp)
  mov    0x4(%rsp),%edx
  add    $0x1,%eax
  mov    %eax,(%r11)
  cmp    $0x1,%edx
  jne    L276
L290:
  movl   $0x0,0x24(%rsp)
  mov    $0xffffffff,%ecx
  jmp    L301
L232:
  mov    (%rsp),%edi
  mov    0x14(%rsp),%edx
  mov    %r11,%r15
  lea    -0x2(%rdi),%ecx
  and    $0x1,%edi
  add    %edi,%edx
L101:
  add    $0x1,%eax
  add    %edx,0x10(%rsp)
  cmpl   $0x1,0x20(%rsp)
  mov    %eax,(%r15)
  jbe    L245
  mov    %ecx,(%rsp)
  mov    (%rsp),%edx
  add    $0x1,%eax
  mov    %eax,(%r15)
  cmp    $0x1,%edx
  ja     L180
L107:
  lea    -0x1(%rdx),%edi
  lea    -0x2(%rdx),%ecx
  mov    %edi,0x20(%rsp)
  jmp    L101
L245:
  mov    0xc(%rsp),%eax
  and    $0x1,%eax
  add    0x10(%rsp),%eax
  mov    %eax,0xc(%rsp)
L252:
  mov    0xc(%rsp),%eax
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int fibonnaci(int n, int *c) {
  *c = *c + 1;
  if (n == 0 || n == 1)
    return n;
  return fibonnaci(n - 1, c) + fibonnaci(n - 2, c);
}
```