user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<transformation_D2>:
  endbr64
  push   %r14
  mov    %rcx,%rax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  movzbl (%rcx),%ecx
  movzbl (%rsi),%r10d
  movzbl 0x1(%rsi),%r8d
  movzbl (%rdi),%r9d
  xor    0x1(%rax),%r8b
  xor    (%rdx),%r9b
  xor    %ecx,%r10d
  movzbl %r8b,%ebx
  movzbl 0x2(%rsi),%r11d
  xor    %ecx,%r9d
  lea    (%r10,%r10,1),%ecx
  mov    %ebx,%r12d
  xor    0x2(%rax),%r11b
  xor    %ecx,%r9d
  mov    %r10d,%ecx
  shl    $0x5,%r12d
  add    %ebx,%ebx
  shr    $0x3,%cl
  shr    $0x7,%r10b
  movzbl 0x3(%rsi),%ebp
  xor    0x3(%rax),%bpl
  or     %r12d,%ecx
  or     %ebx,%r10d
  movzbl %r11b,%r12d
  xor    %ecx,%r9d
  movzbl 0x1(%rdi),%ecx
  mov    %r12d,%ebx
  add    %r12d,%r12d
  mov    %r9b,(%rdi)
  xor    0x1(%rdx),%cl
  shl    $0x5,%ebx
  xor    0x1(%rax),%cl
  xor    %r10d,%ecx
  mov    %r8d,%r10d
  shr    $0x7,%r8b
  shr    $0x3,%r10b
  or     %r12d,%r8d
  or     %ebx,%r10d
  movzbl %bpl,%ebx
  xor    %r10d,%ecx
  movzbl 0x2(%rdi),%r10d
  mov    %ebx,%r12d
  mov    %cl,0x1(%rdi)
  xor    0x2(%rdx),%r10b
  shl    $0x5,%r12d
  xor    0x2(%rax),%r10b
  xor    %r8d,%r10d
  mov    %r11d,%r8d
  shr    $0x3,%r8b
  or     %r12d,%r8d
  xor    %r8d,%r10d
  movzbl 0x3(%rdi),%r8d
  mov    %r10b,0x2(%rdi)
  xor    0x3(%rdx),%r8b
  xor    0x3(%rax),%r8b
  shr    $0x3,%bpl
  add    %ebx,%ebx
  shr    $0x7,%r11b
  xor    %ebp,%r8d
  or     %ebx,%r11d
  xor    %r11d,%r8d
  mov    %r8b,0x3(%rdi)
  movzbl (%rdx),%ebp
  movzbl 0x2(%rdx),%ebx
  xor    0x1(%rdx),%cl
  xor    0x3(%rdx),%r8b
  xor    %r9d,%ebp
  movzbl (%rsi),%r11d
  mov    %ecx,%r13d
  xor    (%rax),%r11b
  xor    %r10d,%ebx
  movzbl %cl,%r10d
  shr    $0x3,%r13b
  xor    %r9d,%r11d
  lea    0x0(%rbp,%rbp,1),%r9d
  mov    %r10d,%r12d
  add    %r10d,%r10d
  shl    $0x5,%r12d
  xor    %r9d,%r11d
  mov    %ebp,%r9d
  shr    $0x7,%bpl
  shr    $0x3,%r9b
  or     %r10d,%ebp
  shr    $0x7,%cl
  movzbl 0x2(%rsi),%r10d
  or     %r12d,%r9d
  movzbl %bl,%r12d
  mov    %r12d,%r14d
  xor    %r9d,%r11d
  movzbl 0x1(%rsi),%r9d
  add    %r12d,%r12d
  shl    $0x5,%r14d
  mov    %r11b,(%rsi)
  xor    0x1(%rdi),%r9b
  or     %r14d,%r13d
  xor    0x1(%rax),%r9b
  xor    %r13d,%r9d
  xor    %ebp,%r9d
  movzbl %r8b,%ebp
  mov    %r9b,0x1(%rsi)
  xor    0x2(%rdi),%r10b
  xor    0x2(%rax),%r10b
  or     %r12d,%ecx
  mov    %ebp,%r12d
  shr    $0x3,%r8b
  xor    %r10d,%ecx
  mov    %ebx,%r10d
  shl    $0x5,%r12d
  add    %ebp,%ebp
  shr    $0x3,%r10b
  shr    $0x7,%bl
  or     %r12d,%r10d
  or     %ebp,%ebx
  xor    %r10d,%ecx
  movzbl 0x3(%rsi),%r10d
  mov    %cl,0x2(%rsi)
  xor    0x3(%rdi),%r10b
  xor    0x3(%rax),%r10b
  xor    %r8d,%r10d
  xor    %ebx,%r10d
  mov    %r10b,0x3(%rsi)
  movzbl (%rax),%r12d
  xor    0x1(%rax),%r9b
  xor    0x2(%rax),%cl
  movzbl (%rdi),%r8d
  movzbl 0x3(%rax),%ebx
  xor    %r11d,%r12d
  mov    %ecx,%ebp
  xor    (%rdx),%r8b
  movzbl %r9b,%ecx
  mov    %r9d,%r13d
  xor    %r8d,%r11d
  lea    (%r12,%r12,1),%r8d
  xor    %r10d,%ebx
  mov    %ecx,%r10d
  shl    $0x5,%r10d
  xor    %r8d,%r11d
  mov    %r12d,%r8d
  shr    $0x3,%r13b
  shr    $0x3,%r8b
  add    %ecx,%ecx
  or     %r10d,%r8d
  movzbl %bpl,%r10d
  mov    %r10d,%r14d
  xor    %r8d,%r11d
  shl    $0x5,%r14d
  mov    %r11b,(%rdx)
  movzbl 0x1(%rdi),%r8d
  or     %r14d,%r13d
  xor    0x1(%rdx),%r8b
  xor    0x1(%rsi),%r8b
  xor    %r13d,%r8d
  shr    $0x7,%r12b
  add    %r10d,%r10d
  or     %ecx,%r12d
  shr    $0x7,%r9b
  xor    %r12d,%r8d
  or     %r10d,%r9d
  movzbl %bl,%r12d
  shr    $0x3,%bl
  mov    %r8b,0x1(%rdx)
  movzbl 0x2(%rdi),%ecx
  mov    %r12d,%r10d
  add    %r12d,%r12d
  xor    0x2(%rdx),%cl
  xor    0x2(%rsi),%cl
  shl    $0x5,%r10d
  xor    %r9d,%ecx
  mov    %ebp,%r9d
  shr    $0x3,%r9b
  or     %r10d,%r9d
  movzbl 0x3(%rdx),%r10d
  xor    %ecx,%r9d
  mov    %ebp,%ecx
  mov    %r9b,0x2(%rdx)
  shr    $0x7,%cl
  xor    0x3(%rdi),%r10b
  xor    0x3(%rsi),%r10b
  or     %r12d,%ecx
  xor    %ebx,%r10d
  xor    %ecx,%r10d
  mov    %r10b,0x3(%rdx)
  movzbl (%rdi),%ebx
  movzbl 0x2(%rdi),%ecx
  xor    0x1(%rdi),%r8b
  xor    0x3(%rdi),%r10b
  xor    %r11d,%ebx
  movzbl (%rsi),%edi
  xor    (%rax),%dil
  xor    %r9d,%ecx
  movzbl %r8b,%r9d
  xor    %r11d,%edi
  lea    (%rbx,%rbx,1),%r11d
  mov    %r9d,%ebp
  xor    %r11d,%edi
  mov    %ebx,%r11d
  shl    $0x5,%ebp
  shr    $0x3,%r11b
  or     %ebp,%r11d
  mov    %r8d,%ebp
  xor    %r11d,%edi
  movzbl %cl,%r11d
  mov    %r11d,%r12d
  mov    %dil,(%rax)
  movzbl 0x1(%rdx),%edi
  xor    0x1(%rsi),%dil
  shl    $0x5,%r12d
  xor    0x1(%rax),%dil
  add    %r9d,%r9d
  shr    $0x3,%bpl
  shr    $0x7,%bl
  add    %r11d,%r11d
  or     %r12d,%ebp
  or     %r9d,%ebx
  shr    $0x7,%r8b
  movzbl %r10b,%r9d
  xor    %ebp,%edi
  or     %r11d,%r8d
  mov    %r9d,%r11d
  shr    $0x3,%r10b
  xor    %ebx,%edi
  shl    $0x5,%r11d
  add    %r9d,%r9d
  pop    %rbx
  mov    %dil,0x1(%rax)
  movzbl 0x2(%rdx),%edi
  xor    0x2(%rsi),%dil
  xor    0x2(%rax),%dil
  xor    %edi,%r8d
  mov    %ecx,%edi
  shr    $0x7,%cl
  pop    %rbp
  shr    $0x3,%dil
  or     %r9d,%ecx
  pop    %r12
  pop    %r13
  or     %r11d,%edi
  pop    %r14
  xor    %edi,%r8d
  mov    %r8b,0x2(%rax)
  movzbl 0x3(%rsi),%esi
  xor    0x3(%rdx),%sil
  movzbl 0x3(%rax),%edx
  xor    %esi,%edx
  xor    %edx,%r10d
  xor    %ecx,%r10d
  mov    %r10b,0x3(%rax)
  ret
```

assistant: ```c
void transformation_D2(unsigned char *x0, unsigned char *x1, unsigned char *x2, unsigned char *x3) {
  const int LEN = 32;
  unsigned char temp[LEN / 8];
  int i;
  unsigned char extL = 0, extR = 0, L = 0;
  for (i = 0; i < LEN / 8; i++)
    temp[i] = x1[i] ^ x3[i];
  for (i = 0; i < LEN / 8; i++) {
    extL = i == 0 ? temp[0] << 1 : (temp[i] << 1) | (temp[i - 1] >> 7);
    extR = i == LEN / 8 - 1 ? temp[i] >> 3 : (temp[i] >> 3) | (temp[i + 1] << 5);
    L = extL ^ extR;
    x0[i] = x0[i] ^ x2[i] ^ x3[i] ^ L;
  }
  for (i = 0; i < LEN / 8; i++)
    temp[i] = x2[i] ^ x0[i];
  for (i = 0; i < LEN / 8; i++) {
    extL = i == 0 ? temp[0] << 1 : (temp[i] << 1) | (temp[i - 1] >> 7);
    extR = i == LEN / 8 - 1 ? temp[i] >> 3 : (temp[i] >> 3) | (temp[i + 1] << 5);
    L = extL ^ extR;
    x1[i] = x1[i] ^ x3[i] ^ x0[i] ^ L;
  }
  for (i = 0; i < LEN / 8; i++)
    temp[i] = x3[i] ^ x1[i];
  for (i = 0; i < LEN / 8; i++) {
    extL = i == 0 ? temp[0] << 1 : (temp[i] << 1) | (temp[i - 1] >> 7);
    extR = i == LEN / 8 - 1 ? temp[i] >> 3 : (temp[i] >> 3) | (temp[i + 1] << 5);
    L = extL ^ extR;
    x2[i] = x2[i] ^ x0[i] ^ x1[i] ^ L;
  }
  for (i = 0; i < LEN / 8; i++)
    temp[i] = x0[i] ^ x2[i];
  for (i = 0; i < LEN / 8; i++) {
    extL = i == 0 ? temp[0] << 1 : (temp[i] << 1) | (temp[i - 1] >> 7);
    extR = i == LEN / 8 - 1 ? temp[i] >> 3 : (temp[i] >> 3) | (temp[i + 1] << 5);
    L = extL ^ extR;
    x3[i] = x3[i] ^ x1[i] ^ x2[i] ^ L;
  }
}
```