user: Demonstrate the C code that generates the assembly output below:

```asm
<GoRgbaDiffThresholdCrop>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x18,%rsp
  mov    %rdi,-0x78(%rbp)
  mov    %rsi,-0x80(%rbp)
  mov    %edx,-0x84(%rbp)
  mov    %ecx,-0x88(%rbp)
  mov    %r8d,-0x8c(%rbp)
  mov    %r9d,-0x90(%rbp)
  mov    0x10(%rbp),%eax
  imul   -0x84(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x90(%rbp),%eax
  cltq
  add    %rdx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x78(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x80(%rbp),%rax
  mov    %rax,-0x48(%rbp)
  mov    -0x84(%rbp),%eax
  sub    -0x88(%rbp),%eax
  mov    %eax,-0x5c(%rbp)
  movl   $0x0,-0x68(%rbp)
  mov    -0x8c(%rbp),%eax
  mov    %eax,-0x64(%rbp)
  jmp    L112
L16:
  mov    -0x88(%rbp),%eax
  mov    %eax,-0x60(%rbp)
  jmp    L79
L101:
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x58(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x40(%rbp)
  sarl   $0x8,-0x58(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x38(%rbp)
  sarl   $0x8,-0x58(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x30(%rbp)
  mov    -0x40(%rbp),%rax
  cmp    0x18(%rbp),%rax
  jl     L111
  mov    -0x38(%rbp),%rax
  cmp    0x20(%rbp),%rax
  jl     L111
  mov    -0x30(%rbp),%rax
  cmp    0x28(%rbp),%rax
  jl     L111
  mov    -0x40(%rbp),%rax
  cmp    0x30(%rbp),%rax
  jg     L111
  mov    -0x38(%rbp),%rax
  cmp    0x38(%rbp),%rax
  jg     L111
  mov    -0x30(%rbp),%rax
  cmp    0x40(%rbp),%rax
  jg     L111
  mov    $0xff,%eax
  jmp    L8
L111:
  mov    $0x0,%eax
L8:
  mov    %rax,-0x28(%rbp)
  mov    -0x48(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x54(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x20(%rbp)
  sarl   $0x8,-0x54(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x18(%rbp)
  sarl   $0x8,-0x54(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  and    $0xff,%eax
  mov    %rax,-0x10(%rbp)
  sarl   $0x8,-0x54(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  mov    %rax,-0x8(%rbp)
  mov    -0x28(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  je     L66
  addl   $0x1,-0x68(%rbp)
L66:
  subl   $0x1,-0x60(%rbp)
  addq   $0x4,-0x48(%rbp)
  addq   $0x4,-0x50(%rbp)
L79:
  cmpl   $0x0,-0x60(%rbp)
  jg     L101
  mov    -0x5c(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rax,-0x50(%rbp)
  subl   $0x1,-0x64(%rbp)
L112:
  cmpl   $0x0,-0x64(%rbp)
  jg     L16
  mov    -0x68(%rbp),%eax
  leave
  ret
```

assistant: ```c
int GoRgbaDiffThresholdCrop(void *haystackBytes, void *needleBytes, int hayWidth, int needleWidth, int needleHeight, int needleLeft, int needleTop, uint8_t minR, uint8_t minG, uint8_t minB, uint8_t maxR, uint8_t maxG, uint8_t maxB) {
  uint32_t *haystackPtr = (uint32_t *)haystackBytes + needleTop * hayWidth + needleLeft;
  uint32_t *needlePtr = (uint32_t *)needleBytes;
  int rowJump = hayWidth - needleWidth;
  int diff = 0;
  for (int y = needleHeight; y > 0; --y) {
    for (int x = needleWidth; x > 0; --x, ++needlePtr, ++haystackPtr) {
      uint32_t hrgba = *haystackPtr;
      uint8_t hr = hrgba & 0xff;
      hrgba >>= 8;
      uint8_t hg = hrgba & 0xff;
      hrgba >>= 8;
      uint8_t hb = hrgba & 0xff;
      uint8_t ha = (hr >= minR && hg >= minG && hb >= minB && hr <= maxR && hg <= maxG && hb <= maxB) ? 0xff : 0;
      uint32_t nrgba = *needlePtr;
      uint8_t nr = nrgba & 0xff;
      nrgba >>= 8;
      uint8_t ng = nrgba & 0xff;
      nrgba >>= 8;
      uint8_t nb = nrgba & 0xff;
      nrgba >>= 8;
      uint8_t na = nrgba;
      if (ha != na)
        diff += 1;
    }
    haystackPtr += rowJump;
  }
  return diff;
}
```