user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<rgb_filter>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%r11d
  mov    %edi,-0x4(%rsp)
  mov    %rcx,%rbx
  mov    0x38(%rsp),%rcx
  mov    0x40(%rsp),%rdx
  movzbl (%rbx),%eax
  mov    %al,(%r8)
  movzbl 0x1(%rbx),%eax
  mov    %al,0x1(%r8)
  lea    0x3(%rbx),%r14
  lea    0x3(%r8),%r15
  movzbl 0x2(%rbx),%eax
  mov    %al,0x2(%r8)
  cmp    $0x2,%edi
  jle    L56
  mov    %rsi,%rdi
  mov    %r11d,%eax
  lea    0x6(%r8),%r10
  lea    0x5(%r8),%r11
  add    $0x4,%r8
  lea    -0x3(%rax),%eax
  lea    0x6(%rax,%rax,2),%rax
  add    %rax,%rbx
  mov    %r14,%rsi
  mov    $0xffffffff,%r13d
  jmp    L60
L75:
  mov    %r8,%rbp
  mov    $0x0,%eax
  jmp    L25
L38:
  mov    %r11,%r12
  mov    $0x0,%eax
  jmp    L19
L39:
  cmp    $0xfe,%rax
  mov    %eax,%ebp
  cmovg  %r13d,%ebp
L44:
  mov    %bpl,(%r12)
  add    $0x18,%r9
  add    $0x18,%rcx
  add    $0x18,%rdx
  add    $0x3,%r10
  add    $0x3,%r11
  add    $0x3,%r8
  cmp    %rsi,%rbx
  je     L53
L60:
  movzbl (%rsi),%eax
  movslq (%rdi,%rax,4),%rax
  sub    -0x18(%r9),%rax
  sub    (%r9),%rax
  sub    0x18(%r9),%rax
  sub    -0x18(%rcx),%rax
  sub    0x18(%rcx),%rax
  sub    -0x18(%rdx),%rax
  sub    (%rdx),%rax
  sub    0x18(%rdx),%rax
  add    $0x4,%rax
  sar    $0x3,%rax
  js     L75
  mov    %r8,%rbp
  cmp    $0xfe,%rax
  cmovg  %r13d,%eax
L25:
  mov    %al,-0x3(%r10)
  movzbl 0x1(%rsi),%eax
  movslq (%rdi,%rax,4),%rax
  sub    -0x10(%r9),%rax
  sub    0x8(%r9),%rax
  sub    0x20(%r9),%rax
  sub    -0x10(%rcx),%rax
  sub    0x20(%rcx),%rax
  sub    -0x10(%rdx),%rax
  sub    0x8(%rdx),%rax
  sub    0x20(%rdx),%rax
  add    $0x4,%rax
  sar    $0x3,%rax
  js     L38
  mov    %r11,%r12
  cmp    $0xfe,%rax
  cmovg  %r13d,%eax
L19:
  mov    %al,0x0(%rbp)
  add    $0x3,%rsi
  movzbl -0x1(%rsi),%eax
  movslq (%rdi,%rax,4),%rax
  sub    -0x8(%r9),%rax
  sub    0x10(%r9),%rax
  sub    0x28(%r9),%rax
  sub    -0x8(%rcx),%rax
  sub    0x28(%rcx),%rax
  sub    -0x8(%rdx),%rax
  sub    0x10(%rdx),%rax
  sub    0x28(%rdx),%rax
  add    $0x4,%rax
  mov    $0x0,%ebp
  sar    $0x3,%rax
  jns    L39
  jmp    L44
L53:
  mov    -0x4(%rsp),%eax
  lea    -0x3(%rax),%eax
  lea    0x3(%rax,%rax,2),%rax
  add    %rax,%r14
  add    %rax,%r15
L56:
  movzbl (%r14),%eax
  mov    %al,(%r15)
  movzbl 0x1(%r14),%eax
  mov    %al,0x1(%r15)
  movzbl 0x2(%r14),%eax
  mov    %al,0x2(%r15)
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void rgb_filter(int width, int *pos_lut, int *neg_lut, unsigned char *src, unsigned char *dst, long int *neg0, long int *neg1, long int *neg2) {
  long int pixel;
  *dst++ = *src++;
  *dst++ = *src++;
  *dst++ = *src++;
  width -= 2;
  while (width > 0) {
    pixel = (pos_lut[*src++] - neg0[-3] - neg0[0] - neg0[3] - neg1[-3] - neg1[3] - neg2[-3] - neg2[0] - neg2[3]);
    pixel = (pixel + 4) >> 3;
    if (pixel < 0)
      *dst++ = 0;
    else if (pixel < 255)
      *dst++ = pixel;
    else
      *dst++ = 255;
    pixel = (pos_lut[*src++] - neg0[-2] - neg0[1] - neg0[4] - neg1[-2] - neg1[4] - neg2[-2] - neg2[1] - neg2[4]);
    pixel = (pixel + 4) >> 3;
    if (pixel < 0)
      *dst++ = 0;
    else if (pixel < 255)
      *dst++ = pixel;
    else
      *dst++ = 255;
    pixel = (pos_lut[*src++] - neg0[-1] - neg0[2] - neg0[5] - neg1[-1] - neg1[5] - neg2[-1] - neg2[2] - neg2[5]);
    pixel = (pixel + 4) >> 3;
    if (pixel < 0)
      *dst++ = 0;
    else if (pixel < 255)
      *dst++ = pixel;
    else
      *dst++ = 255;
    neg0 += 3;
    neg1 += 3;
    neg2 += 3;
    width--;
  };
  *dst++ = *src++;
  *dst++ = *src++;
  *dst++ = *src++;
}
```