user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x828,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  mov    $0x0,%edi
  call   <XOpenDisplay@plt>
  mov    %rax,-0x828(%rbp)
  mov    D3(%rip),%rax
  mov    (%rax),%r13d
  mov    D3(%rip),%rax
  mov    (%rax),%r12d
  mov    D3(%rip),%rax
  mov    (%rax),%ebx
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <DefaultRootWindow@plt>
  mov    %eax,%esi
  mov    -0x828(%rbp),%rax
  push   $0x0
  push   $0x0
  push   %r13
  push   %r12
  push   %rbx
  push   $0x0
  mov    $0x12c,%r9d
  mov    $0x12c,%r8d
  mov    $0x64,%ecx
  mov    $0x64,%edx
  mov    %rax,%rdi
  call   <XCreateWindow@plt>
  add    $0x30,%rsp
  mov    %eax,-0x834(%rbp)
  mov    -0x834(%rbp),%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <XMapWindow@plt>
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <XFlush@plt>
  mov    $0x1,%edi
  call   <sleep@plt>
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <DefaultScreen@plt>
  mov    %eax,%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <BlackPixel@plt>
  mov    %rax,-0x818(%rbp)
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <DefaultScreen@plt>
  mov    %eax,%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <WhitePixel@plt>
  mov    %rax,-0x820(%rbp)
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <DefaultScreen@plt>
  mov    %eax,%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <WhitePixel@plt>
  mov    %rax,-0x808(%rbp)
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <DefaultScreen@plt>
  mov    %eax,%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <BlackPixel@plt>
  mov    %rax,-0x810(%rbp)
  mov    D68(%rip),%rax
  mov    (%rax),%rdx
  mov    D67(%rip),%rax
  mov    (%rax),%rax
  lea    (%rdx,%rax,1),%rdi
  lea    -0x820(%rbp),%rdx
  mov    -0x834(%rbp),%esi
  mov    -0x828(%rbp),%rax
  mov    %rdx,%rcx
  mov    %rdi,%rdx
  mov    %rax,%rdi
  call   <XCreateGC@plt>
  mov    %eax,-0x830(%rbp)
  mov    D68(%rip),%rax
  mov    (%rax),%rdx
  mov    D67(%rip),%rax
  mov    (%rax),%rax
  lea    (%rdx,%rax,1),%rdi
  lea    -0x810(%rbp),%rdx
  mov    -0x834(%rbp),%esi
  mov    -0x828(%rbp),%rax
  mov    %rdx,%rcx
  mov    %rdi,%rdx
  mov    %rax,%rdi
  call   <XCreateGC@plt>
  mov    %eax,-0x82c(%rbp)
  mov    -0x834(%rbp),%edx
  mov    -0x828(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <XClearWindow@plt>
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <XFlush@plt>
  mov    -0x830(%rbp),%edx
  mov    -0x834(%rbp),%esi
  mov    -0x828(%rbp),%rax
  sub    $0x8,%rsp
  push   $0x12c
  mov    $0x12c,%r9d
  mov    $0x0,%r8d
  mov    $0x0,%ecx
  mov    %rax,%rdi
  call   <XFillRectangle@plt>
  add    $0x10,%rsp
  mov    -0x82c(%rbp),%edx
  mov    -0x834(%rbp),%esi
  mov    -0x828(%rbp),%rax
  sub    $0x8,%rsp
  push   $0xc8
  mov    $0xc8,%r9d
  mov    $0x32,%r8d
  mov    $0x32,%ecx
  mov    %rax,%rdi
  call   <XFillRectangle@plt>
  add    $0x10,%rsp
  mov    -0x828(%rbp),%rax
  mov    %rax,%rdi
  call   <XFlush@plt>
  movl   $0x0,-0x838(%rbp)
  jmp    L16
L24:
  mov    -0x838(%rbp),%eax
  mov    %eax,%edi
  call   <sin@plt>
  movd   %xmm0,%eax
  mov    -0x838(%rbp),%edx
  movslq %edx,%rdx
  mov    %eax,-0x800(%rbp,%rdx,4)
  addl   $0x1,-0x838(%rbp)
L16:
  cmpl   $0x1f3,-0x838(%rbp)
  jle    L24
  mov    -0x830(%rbp),%esi
  mov    -0x834(%rbp),%ecx
  mov    -0x828(%rbp),%rdx
  lea    -0x800(%rbp),%rax
  sub    $0x8,%rsp
  push   $0xc8
  push   $0xc8
  push   $0x32
  mov    $0x32,%r9d
  mov    %esi,%r8d
  mov    $0x1f4,%esi
  mov    %rax,%rdi
  call   <drawWave@plt>
  add    $0x20,%rsp
  mov    $0xa,%edi
  call   <sleep@plt>
  mov    $0x0,%eax
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L21
  call   <__stack_chk_fail@plt>
L21:
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
```

assistant: ```c
main() {
  Display *d = XOpenDisplay(0);
  Window w = XCreateWindow(d, DefaultRootWindow(d), 100, 100, 300, 300, 0, CopyFromParent, CopyFromParent, CopyFromParent, 0, 0);
  XMapWindow(d, w);
  XFlush(d);
  sleep(1);
  XGCValues blackgcv, whitegcv;
  blackgcv.foreground = BlackPixel(d, DefaultScreen(d));
  blackgcv.background = WhitePixel(d, DefaultScreen(d));
  whitegcv.foreground = WhitePixel(d, DefaultScreen(d));
  whitegcv.background = BlackPixel(d, DefaultScreen(d));
  GC black = XCreateGC(d, w, GCForeground + GCBackground, &blackgcv);
  GC white = XCreateGC(d, w, GCForeground + GCBackground, &whitegcv);
  XClearWindow(d, w);
  XFlush(d);
  XFillRectangle(d, w, black, 0, 0, 300, 300);
  XFillRectangle(d, w, white, 50, 50, 200, 200);
  XFlush(d);
  float davethesinewave[500];
  int k;
  for (k = 0; k < 500; k++) {
    davethesinewave[k] = sin(k);
  }
  drawWave(davethesinewave, 500, d, w, black, 50, 50, 200, 200);
  sleep(10);
  return 0;
}
```