user: 下面的汇编指令对应的C源代码是什么：

```asm
<find_max>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xe8,%rsp
  mov    %edx,0x40(%rsp)
  mov    %r8d,0x38(%rsp)
  movl   $0x0,0x44(%rsp)
  test   %edi,%edi
  jle    L355
  movslq %edi,%r9
  movslq %edx,%rax
  xor    %r10d,%r10d
  mov    %rsi,0x10(%rsp)
  imul   %r9,%rax
  lea    0x0(,%r9,4),%r11
  add    $0x9,%ecx
  lea    (%rsi,%rax,4),%rax
  mov    %rax,0x48(%rsp)
  mov    %r10,%rax
  mov    %r11,%r10
  mov    %r9,%r11
  mov    %rax,%r9
L160:
  mov    %r9d,0x20(%rsp)
  cmp    %r9d,0x38(%rsp)
  je     L321
  mov    0x48(%rsp),%rax
  mov    (%rax,%r9,4),%r14d
  test   %r14d,%r14d
  jne    L85
L321:
  add    $0x1,%r9
  add    %r10,0x10(%rsp)
  cmp    %r9,%r11
  jne    L160
L355:
  mov    0x44(%rsp),%eax
  add    $0xe8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopw   0x0(%rax,%rax,1)
L85:
  mov    %rsi,0x18(%rsp)
  xor    %r15d,%r15d
  movl   $0x0,0x58(%rsp)
  mov    %r9,0x80(%rsp)
  mov    %r15,%r9
L116:
  mov    %r9d,0x24(%rsp)
  cmp    %r9d,0x40(%rsp)
  je     L120
  mov    0x10(%rsp),%rax
  mov    (%rax,%r9,4),%r13d
  test   %r13d,%r13d
  jne    L49
L120:
  add    $0x1,%r9
  add    %r10,0x18(%rsp)
  cmp    %r9,%r11
  jne    L116
  mov    0x58(%rsp),%eax
  mov    0x44(%rsp),%edx
  mov    0x80(%rsp),%r9
  add    $0x1,%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,0x44(%rsp)
  jmp    L321
  nopl   0x0(%rax)
L49:
  mov    %rsi,0x28(%rsp)
  xor    %r15d,%r15d
  movl   $0x0,0x5c(%rsp)
  mov    %r11,0x8(%rsp)
  mov    %r9,0x88(%rsp)
  mov    %r15,%r9
L18:
  mov    %r9d,0x30(%rsp)
  cmp    %r9d,0x20(%rsp)
  je     L14
  mov    0x18(%rsp),%rax
  mov    (%rax,%r9,4),%r12d
  test   %r12d,%r12d
  jne    L322
L14:
  add    %r10,0x28(%rsp)
  add    $0x1,%r9
  cmp    %r9,0x8(%rsp)
  jne    L18
  mov    0x5c(%rsp),%eax
  mov    0x58(%rsp),%edx
  mov    0x8(%rsp),%r11
  mov    0x88(%rsp),%r9
  add    $0x1,%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,0x58(%rsp)
  jmp    L120
  nopl   0x0(%rax,%rax,1)
L322:
  movl   $0x0,0x68(%rsp)
  xor    %r11d,%r11d
  mov    %r9,0x90(%rsp)
  mov    %r11,%r9
  mov    %r10,%r11
  mov    %rsi,%r10
L305:
  mov    %r9d,0x34(%rsp)
  cmp    %r9d,0x24(%rsp)
  je     L195
  mov    0x28(%rsp),%rax
  mov    (%rax,%r9,4),%ebp
  test   %ebp,%ebp
  jne    L275
L195:
  add    $0x1,%r9
  add    %r11,%r10
  cmp    %r9,0x8(%rsp)
  jne    L305
  mov    0x68(%rsp),%eax
  mov    0x5c(%rsp),%ebx
  mov    %r11,%r10
  mov    0x90(%rsp),%r9
  add    $0x1,%eax
  cmp    %eax,%ebx
  cmovge %ebx,%eax
  mov    %eax,0x5c(%rsp)
  jmp    L14
  nopw   0x0(%rax,%rax,1)
L275:
  movl   $0x0,0x6c(%rsp)
  xor    %r15d,%r15d
  mov    %r10,0x50(%rsp)
  mov    %rsi,%r10
  mov    %r9,0x98(%rsp)
  mov    %r15,%r9
L214:
  mov    %r9d,0x3c(%rsp)
  cmp    %r9d,0x30(%rsp)
  je     L144
  mov    0x50(%rsp),%rax
  mov    (%rax,%r9,4),%ebx
  test   %ebx,%ebx
  jne    L225
L144:
  add    $0x1,%r9
  add    %r11,%r10
  cmp    %r9d,%edi
  jg     L214
  mov    0x6c(%rsp),%eax
  mov    0x68(%rsp),%edx
  mov    0x50(%rsp),%r10
  mov    0x98(%rsp),%r9
  add    $0x1,%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,0x68(%rsp)
  jmp    L195
  nopl   0x0(%rax)
L225:
  movl   $0x0,0x74(%rsp)
  mov    %r11,%r13
  xor    %r15d,%r15d
  mov    %rsi,%r11
  mov    %r10,0x60(%rsp)
  mov    %r9,0xa0(%rsp)
L206:
  cmp    %r15d,0x34(%rsp)
  je     L299
  mov    0x60(%rsp),%rax
  mov    (%rax,%r15,4),%r10d
  test   %r10d,%r10d
  jne    L240
L299:
  add    $0x1,%r15
  add    %r13,%r11
  cmp    %r15d,%edi
  jg     L206
  mov    0x74(%rsp),%eax
  mov    0x6c(%rsp),%ebx
  mov    %r13,%r11
  mov    0x60(%rsp),%r10
  mov    0xa0(%rsp),%r9
  add    $0x1,%eax
  cmp    %eax,%ebx
  cmovge %ebx,%eax
  mov    %eax,0x6c(%rsp)
  jmp    L144
  nopl   0x0(%rax,%rax,1)
L240:
  movl   $0x0,0x78(%rsp)
  xor    %ebx,%ebx
  mov    %r15d,0x70(%rsp)
  mov    %r15,0xa8(%rsp)
  mov    %rsi,%r15
L112:
  mov    %ebx,%r9d
  cmp    %ebx,0x3c(%rsp)
  je     L24
  mov    (%r11,%rbx,4),%r8d
  test   %r8d,%r8d
  jne    L194
L24:
  add    $0x1,%rbx
  add    %r13,%r15
  cmp    %ebx,%edi
  jg     L112
  mov    0x78(%rsp),%eax
  mov    0x74(%rsp),%edx
  mov    0xa8(%rsp),%r15
  add    $0x1,%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,0x74(%rsp)
  jmp    L299
  nopl   0x0(%rax,%rax,1)
L194:
  movl   $0x0,0x7c(%rsp)
  mov    %rsi,%r14
  xor    %ebp,%ebp
  mov    %r13,%r10
  mov    %rbx,0xb8(%rsp)
  mov    %edi,%r12d
  mov    %r11,0xb0(%rsp)
  mov    %r15,%r11
L92:
  cmp    %ebp,0x70(%rsp)
  je     L27
  mov    (%r11,%rbp,4),%edx
  test   %edx,%edx
  jne    L224
L27:
  add    $0x1,%rbp
  add    %r10,%r14
  cmp    %ebp,%r12d
  jg     L92
  mov    0x7c(%rsp),%eax
  mov    0x78(%rsp),%edx
  mov    %r11,%r15
  mov    %r10,%r13
  mov    0xb0(%rsp),%r11
  mov    0xb8(%rsp),%rbx
  mov    %r12d,%edi
  add    $0x1,%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,0x78(%rsp)
  jmp    L24
  nopw   0x0(%rax,%rax,1)
L224:
  mov    %r10,0xc0(%rsp)
  mov    %ebp,%r8d
  xor    %ebx,%ebx
  xor    %r13d,%r13d
  mov    %r11,0xc8(%rsp)
  mov    %r9d,%r15d
  mov    %rbp,0xd0(%rsp)
  mov    %rsi,%rbp
L147:
  mov    %ebx,%edx
  cmp    %ebx,%r15d
  je     L336
  mov    (%r14,%rbx,4),%eax
  test   %eax,%eax
  jne    L174
L336:
  add    $0x1,%rbx
  cmp    %ebx,%r12d
  jg     L147
  mov    0x7c(%rsp),%eax
  add    $0x1,%r13d
  mov    %rbp,%rsi
  mov    %r15d,%r9d
  mov    0xc0(%rsp),%r10
  mov    0xc8(%rsp),%r11
  cmp    %r13d,%eax
  mov    0xd0(%rsp),%rbp
  cmovge %eax,%r13d
  mov    %r13d,0x7c(%rsp)
  jmp    L27
  nopl   (%rax)
L174:
  mov    %rbp,%rsi
  mov    %r12d,%edi
  mov    %r8d,0xdc(%rsp)
  mov    %ecx,0xd8(%rsp)
  call   <find_max>
  mov    0xdc(%rsp),%r8d
  mov    0xd8(%rsp),%ecx
  add    $0x1,%eax
  cmp    %eax,%r13d
  cmovl  %eax,%r13d
  jmp    L336
```

assistant: ```c
int find_max(int n, bool a[n][n], int node, int cur_len, int prev_node) {
  int j, length = 0, temp = -1;
  for (j = 0; j < n; j++)
    if (j != prev_node)
      if (a[node][j]) {
        temp = 1 + find_max(n, a, j, cur_len + 1, node);
        if (temp > length)
          length = temp;
      }
  return length;
}
```