user: 请将以下的汇编代码转换成C语言代码:

```asm
<dfs>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    %rcx,-0x28(%rbp)
  mov    %r8d,-0x2c(%rbp)
  mov    %r9d,-0x30(%rbp)
  mov    -0x20(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x8(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  mov    -0x2c(%rbp),%edx
  movslq %edx,%rcx
  movslq %eax,%rdx
  imul   %rcx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x28(%rbp),%rdx
  add    %rdx,%rcx
  mov    -0x30(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rcx,%rdx,4),%edx
  test   %edx,%edx
  jne    L60
  mov    -0x2c(%rbp),%edx
  movslq %edx,%rdx
  cltq
  imul   %rdx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x30(%rbp),%eax
  cltq
  movl   $0x1,(%rdx,%rax,4)
  cmpl   $0x0,-0x30(%rbp)
  jle    L57
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%eax
  cltq
  sub    $0x1,%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x58,%al
  jne    L57
  mov    -0x30(%rbp),%eax
  lea    -0x1(%rax),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%edx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%rax
  sub    $0x8,%rsp
  mov    0x10(%rbp),%edi
  push   %rdi
  mov    %rax,%rdi
  call   <dfs>
  add    $0x10,%rsp
L57:
  mov    -0x30(%rbp),%eax
  add    $0x1,%eax
  cmp    %eax,-0x20(%rbp)
  jle    L3
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%eax
  cltq
  add    $0x1,%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x58,%al
  jne    L3
  mov    -0x30(%rbp),%eax
  lea    0x1(%rax),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%edx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%rax
  sub    $0x8,%rsp
  mov    0x10(%rbp),%edi
  push   %rdi
  mov    %rax,%rdi
  call   <dfs>
  add    $0x10,%rsp
L3:
  movl   $0x0,-0xc(%rbp)
  jmp    L96
L76:
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%eax
  cltq
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x58,%al
  jne    L27
  mov    -0x2c(%rbp),%eax
  sub    -0xc(%rbp),%eax
  mov    %eax,%edx
  neg    %edx
  cmovns %edx,%eax
  cmp    %eax,0x10(%rbp)
  jl     L27
  mov    -0x30(%rbp),%r9d
  mov    -0xc(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%edx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%rax
  sub    $0x8,%rsp
  mov    0x10(%rbp),%edi
  push   %rdi
  mov    %rax,%rdi
  call   <dfs>
  add    $0x10,%rsp
L27:
  addl   $0x1,-0xc(%rbp)
L96:
  mov    -0xc(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jl     L76
  jmp    L41
L60:
  nop
L41:
  leave
  ret
```

assistant: ```c
void dfs(char *level[], int rows, int cols, int visited[rows][cols], int cur_row, int cur_col, int ladder) {
  if (visited[cur_row][cur_col])
    return;
  visited[cur_row][cur_col] = 1;
  if ((cur_col - 1) >= 0 && level[cur_row][cur_col - 1] == 'X') {
    dfs(level, rows, cols, visited, cur_row, cur_col - 1, ladder);
  }
  if ((cur_col + 1) < cols && level[cur_row][cur_col + 1] == 'X') {
    dfs(level, rows, cols, visited, cur_row, cur_col + 1, ladder);
  }
  for (int i = 0; i < rows; i++) {
    if (level[i][cur_col] == 'X' && abs(cur_row - i) <= ladder) {
      dfs(level, rows, cols, visited, i, cur_col, ladder);
    }
  }
}
```