user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<carve_maze>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    %edx,-0x30(%rbp)
  mov    %ecx,-0x34(%rbp)
  mov    %r8d,-0x38(%rbp)
  mov    $0x0,%eax
  call   <maze_rand@plt>
  cltd
  shr    $0x1e,%edx
  add    %edx,%eax
  and    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L107
L29:
  movl   $0x0,-0x20(%rbp)
  movl   $0x0,-0x1c(%rbp)
  cmpl   $0x2,-0x18(%rbp)
  je     L95
  cmpl   $0x2,-0x18(%rbp)
  jg     L8
  cmpl   $0x0,-0x18(%rbp)
  je     L51
  cmpl   $0x1,-0x18(%rbp)
  je     L54
  jmp    L8
L51:
  movl   $0x1,-0x20(%rbp)
  jmp    L28
L54:
  movl   $0x1,-0x1c(%rbp)
  jmp    L28
L95:
  movl   $0xffffffff,-0x20(%rbp)
  jmp    L28
L8:
  movl   $0xffffffff,-0x1c(%rbp)
  nop
L28:
  mov    -0x34(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x38(%rbp),%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0xc(%rbp),%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x4(%rbp)
  cmpl   $0x0,-0x8(%rbp)
  jle    L114
  mov    -0x8(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jge    L114
  cmpl   $0x0,-0x4(%rbp)
  jle    L114
  mov    -0x4(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jge    L114
  mov    -0xc(%rbp),%eax
  imul   -0x2c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x10(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x1,%al
  jne    L114
  mov    -0x4(%rbp),%eax
  imul   -0x2c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x1,%al
  jne    L114
  mov    -0xc(%rbp),%eax
  imul   -0x2c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x10(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x4(%rbp),%eax
  imul   -0x2c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x38(%rbp)
  mov    $0x0,%eax
  call   <maze_rand@plt>
  cltd
  shr    $0x1e,%edx
  add    %edx,%eax
  and    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L107
L114:
  mov    -0x18(%rbp),%eax
  add    $0x1,%eax
  cltd
  shr    $0x1e,%edx
  add    %edx,%eax
  and    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,-0x18(%rbp)
  addl   $0x1,-0x14(%rbp)
L107:
  cmpl   $0x3,-0x14(%rbp)
  jle    L29
  nop
  nop
  leave
  ret
```

assistant: ```c
void carve_maze(char *maze, int width, int height, int x, int y) {
  int x1, y1;
  int x2, y2;
  int dx, dy;
  int dir, count;
  dir = maze_rand() % 4;
  count = 0;
  while (count < 4) {
    dx = 0;
    dy = 0;
    switch (dir) {
    case 0:
      dx = 1;
      break;
    case 1:
      dy = 1;
      break;
    case 2:
      dx = -1;
      break;
    default:
      dy = -1;
      break;
    }
    x1 = x + dx;
    y1 = y + dy;
    x2 = x1 + dx;
    y2 = y1 + dy;
    if (x2 > 0 && x2 < width && y2 > 0 && y2 < height && maze[y1 * width + x1] == 1 && maze[y2 * width + x2] == 1) {
      maze[y1 * width + x1] = 0;
      maze[y2 * width + x2] = 0;
      x = x2;
      y = y2;
      dir = maze_rand() % 4;
      count = 0;
    } else {
      dir = (dir + 1) % 4;
      count++;
    }
  }
}
```