user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<scale_YCoCg>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  movzbl 0x2(%rsi),%eax
  lea    -0x80(%rax),%edi
  movzbl %dil,%edi
  call   <abs@plt>
  mov    %eax,%ebp
  movzbl 0x1(%r13),%eax
  lea    -0x80(%rax),%edi
  movzbl %dil,%edi
  call   <abs@plt>
  mov    %eax,%r15d
  movzbl 0x2(%r12),%eax
  lea    -0x80(%rax),%edi
  movzbl %dil,%edi
  call   <abs@plt>
  mov    %eax,%r14d
  movzbl 0x1(%r12),%eax
  lea    -0x80(%rax),%edi
  movzbl %dil,%edi
  call   <abs@plt>
  cmp    %r15d,%ebp
  cmovl  %r15d,%ebp
  cmp    %r14d,%ebp
  cmovl  %r14d,%ebp
  cmp    %eax,%ebp
  cmovl  %eax,%ebp
  xor    %eax,%eax
  cmp    $0x3f,%ebp
  setle  %al
  xor    %edx,%edx
  cmp    $0x1f,%ebp
  setle  %dl
  lea    0x1(%rax,%rdx,2),%edx
  movzbl 0x2(%r13),%eax
  lea    -0x8(,%rdx,8),%ecx
  add    $0xffffff80,%eax
  mov    %cl,0x0(%r13)
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2(%r13)
  movzbl 0x1(%r13),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1(%r13)
  movzbl 0x2(%r12),%eax
  mov    %cl,(%r12)
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2(%r12)
  movzbl 0x1(%r12),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1(%r12)
  movzbl 0x2(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2(%rbx)
  movzbl 0x1(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1(%rbx)
  movzbl 0x6(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x6(%rbx)
  movzbl 0x5(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x5(%rbx)
  movzbl 0xa(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0xa(%rbx)
  movzbl 0x9(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x9(%rbx)
  movzbl 0xe(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0xe(%rbx)
  movzbl 0xd(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0xd(%rbx)
  movzbl 0x12(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x12(%rbx)
  movzbl 0x11(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x11(%rbx)
  movzbl 0x16(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x16(%rbx)
  movzbl 0x15(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x15(%rbx)
  movzbl 0x1a(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1a(%rbx)
  movzbl 0x19(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x19(%rbx)
  movzbl 0x1e(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1e(%rbx)
  movzbl 0x1d(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x1d(%rbx)
  movzbl 0x22(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x22(%rbx)
  movzbl 0x21(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x21(%rbx)
  movzbl 0x26(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x26(%rbx)
  movzbl 0x25(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x25(%rbx)
  movzbl 0x2a(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2a(%rbx)
  movzbl 0x29(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x29(%rbx)
  movzbl 0x2e(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2e(%rbx)
  movzbl 0x2d(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x2d(%rbx)
  movzbl 0x32(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x32(%rbx)
  movzbl 0x31(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x31(%rbx)
  movzbl 0x36(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x36(%rbx)
  movzbl 0x35(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x35(%rbx)
  movzbl 0x3a(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x3a(%rbx)
  movzbl 0x39(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x39(%rbx)
  movzbl 0x3e(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x3e(%rbx)
  movzbl 0x3d(%rbx),%eax
  add    $0xffffff80,%eax
  imul   %edx,%eax
  add    $0xffffff80,%eax
  mov    %al,0x3d(%rbx)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void scale_YCoCg(unsigned char *block, unsigned char *mincolor, unsigned char *maxcolor) {
  const int s0 = 128 / 2 - 1;
  const int s1 = 128 / 4 - 1;
  int m0, m1, m2, m3;
  int mask0, mask1, scale;
  int i;
  m0 = abs(mincolor[2] - 128);
  m1 = abs(mincolor[1] - 128);
  m2 = abs(maxcolor[2] - 128);
  m3 = abs(maxcolor[1] - 128);
  if (m1 > m0)
    m0 = m1;
  if (m3 > m2)
    m2 = m3;
  if (m2 > m0)
    m0 = m2;
  mask0 = -(m0 <= s0);
  mask1 = -(m0 <= s1);
  scale = 1 + (1 & mask0) + (2 & mask1);
  mincolor[2] = (mincolor[2] - 128) * scale + 128;
  mincolor[1] = (mincolor[1] - 128) * scale + 128;
  mincolor[0] = (scale - 1) << 3;
  maxcolor[2] = (maxcolor[2] - 128) * scale + 128;
  maxcolor[1] = (maxcolor[1] - 128) * scale + 128;
  maxcolor[0] = (scale - 1) << 3;
  for (i = 0; i < 16; ++i) {
    block[i * 4 + 2] = (block[i * 4 + 2] - 128) * scale + 128;
    block[i * 4 + 1] = (block[i * 4 + 1] - 128) * scale + 128;
  }
}
```