user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<connect_room>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  cmpq   $0x0,-0x38(%rbp)
  jns    L20
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    $0xf,%edi
  call   <randm@plt>
  add    %rbx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x28(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x1,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0xffffffff,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  mov    -0x28(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x2,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  jmp    L46
L20:
  cmpq   $0x0,-0x38(%rbp)
  jle    L58
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    $0xf,%edi
  call   <randm@plt>
  add    %rbx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x1,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0xffffffff,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x2,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  jmp    L46
L58:
  cmpq   $0x0,-0x40(%rbp)
  jns    L59
  mov    -0x28(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    $0xf,%edi
  call   <randm@plt>
  add    %rbx,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x1,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0xffffffff,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x2,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x1,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  jmp    L46
L59:
  cmpq   $0x0,-0x40(%rbp)
  jle    L46
  mov    -0x28(%rbp),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    $0xf,%edi
  call   <randm@plt>
  add    %rbx,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x30(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x1,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0xffffffff,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
  mov    -0x30(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  sub    $0x2,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    $0x1,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <finish_path@plt>
L46:
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void connect_room(long ax, long ay, long dx, long dy) {
  long mx, my;
  if (dx < 0) {
    my = ay * 20 + 1 + randm(20 - 3 - 2);
    mx = ax * 20 - 1;
    finish_path(mx, my, -1, 0);
    mx = ax * 20 - 3 + 1;
    finish_path(mx, my, +1, 0);
  } else if (dx > 0) {
    my = ay * 20 + 1 + randm(20 - 3 - 2);
    mx = ax * 20 + 20 - 1;
    finish_path(mx, my, -1, 0);
    mx = ax * 20 + 20 - 3 + 1;
    finish_path(mx, my, +1, 0);
  } else if (dy < 0) {
    mx = ax * 20 + 1 + randm(20 - 3 - 2);
    my = ay * 20 - 1;
    finish_path(mx, my, 0, -1);
    my = ay * 20 - 3 + 1;
    finish_path(mx, my, 0, +1);
  } else if (dy > 0) {
    mx = ax * 20 + 1 + randm(20 - 3 - 2);
    my = ay * 20 + 20 - 1;
    finish_path(mx, my, 0, -1);
    my = ay * 20 + 20 - 3 + 1;
    finish_path(mx, my, 0, +1);
  }
}
```