user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<drawRectangle>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    %ecx,-0x24(%rbp)
  mov    %r8d,-0x28(%rbp)
  mov    %r9d,-0x2c(%rbp)
  mov    0x20(%rbp),%eax
  mov    %al,-0x30(%rbp)
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%edx
  mov    0x18(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%ecx
  mov    -0x2c(%rbp),%eax
  add    %ecx,%eax
  imul   -0x1c(%rbp),%eax
  add    %edx,%eax
  imul   -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L32
L58:
  mov    -0x8(%rbp),%rax
  movzbl -0x30(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x24(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0xc(%rbp)
L32:
  mov    -0xc(%rbp),%eax
  cmp    0x10(%rbp),%eax
  jl     L58
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%edx
  mov    0x18(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  mov    %eax,%ecx
  mov    -0x2c(%rbp),%eax
  add    %ecx,%eax
  imul   -0x1c(%rbp),%eax
  add    %edx,%eax
  imul   -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L67
L76:
  mov    -0x8(%rbp),%rax
  movzbl -0x30(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x24(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0xc(%rbp)
L67:
  mov    -0xc(%rbp),%eax
  cmp    0x10(%rbp),%eax
  jl     L76
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%edx
  mov    0x18(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%ecx
  mov    -0x2c(%rbp),%eax
  add    %ecx,%eax
  imul   -0x1c(%rbp),%eax
  add    %edx,%eax
  imul   -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L1
L78:
  mov    -0x8(%rbp),%rax
  movzbl -0x30(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x1c(%rbp),%eax
  imul   -0x24(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0xc(%rbp)
L1:
  mov    -0xc(%rbp),%eax
  cmp    0x18(%rbp),%eax
  jl     L78
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%edx
  mov    0x18(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  neg    %eax
  mov    %eax,%ecx
  mov    -0x2c(%rbp),%eax
  add    %ecx,%eax
  imul   -0x1c(%rbp),%eax
  add    %edx,%eax
  imul   -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L35
L16:
  mov    -0x8(%rbp),%rax
  movzbl -0x30(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x1c(%rbp),%eax
  imul   -0x24(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0xc(%rbp)
L35:
  mov    -0xc(%rbp),%eax
  cmp    0x18(%rbp),%eax
  jl     L16
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void drawRectangle(unsigned char *I, int width, int height, int bytesPerPixel, int x, int y, int sizex, int sizey, unsigned char color) {
  unsigned char *p;
  int k;
  p = I + ((x - sizex / 2) + (y - sizey / 2) * width) * bytesPerPixel;
  for (k = 0; k < sizex; k++) {
    *p = color;
    p += bytesPerPixel;
  }
  p = I + ((x - sizex / 2) + (y + sizey / 2) * width) * bytesPerPixel;
  for (k = 0; k < sizex; k++) {
    *p = color;
    p += bytesPerPixel;
  }
  p = I + ((x - sizex / 2) + (y - sizey / 2) * width) * bytesPerPixel;
  for (k = 0; k < sizey; k++) {
    *p = color;
    p += width * bytesPerPixel;
  }
  p = I + ((x + sizex / 2) + (y - sizey / 2) * width) * bytesPerPixel;
  for (k = 0; k < sizey; k++) {
    *p = color;
    p += width * bytesPerPixel;
  }
}
```