user: 请将以下的汇编代码转换成C语言代码：

```asm
<foo>:
  endbr64
  mov    %esi,%esi
  mov    %rdi,%rdx
  lea    (%rdi,%rsi,1),%rdi
  cmp    %rdi,%rdx
  jae    L84
  sub    $0x1,%rsi
  mov    %rdx,%rax
  mov    %rsi,%r8
  shr    $0x2,%r8
  add    $0x1,%r8
  cmp    $0x3b,%rsi
  jbe    L124
  mov    %r8,%rcx
  movdqa D0(%rip),%xmm3
  shr    $0x4,%rcx
  shl    $0x6,%rcx
  add    %rdx,%rcx
  nopl   0x0(%rax,%rax,1)
L170:
  movdqu (%rax),%xmm1
  movdqu 0x10(%rax),%xmm0
  movdqa %xmm3,%xmm6
  add    $0x40,%rax
  movdqu -0x30(%rax),%xmm2
  movdqu -0x20(%rax),%xmm4
  pand   %xmm3,%xmm0
  pand   %xmm3,%xmm1
  movdqu -0x10(%rax),%xmm5
  packuswb %xmm0,%xmm1
  movdqu -0x40(%rax),%xmm0
  psrlw  $0x8,%xmm2
  pand   %xmm3,%xmm4
  psrlw  $0x8,%xmm5
  psrlw  $0x8,%xmm0
  packuswb %xmm2,%xmm0
  movdqu -0x10(%rax),%xmm2
  pand   %xmm3,%xmm2
  packuswb %xmm2,%xmm4
  movdqu -0x20(%rax),%xmm2
  pand   %xmm4,%xmm6
  psrlw  $0x8,%xmm4
  psrlw  $0x8,%xmm2
  packuswb %xmm5,%xmm2
  movdqa %xmm3,%xmm5
  pand   %xmm1,%xmm5
  psrlw  $0x8,%xmm1
  packuswb %xmm6,%xmm5
  packuswb %xmm4,%xmm1
  movdqa %xmm3,%xmm6
  movdqa %xmm3,%xmm4
  pand   %xmm2,%xmm6
  pand   %xmm0,%xmm4
  psrlw  $0x8,%xmm2
  psrlw  $0x8,%xmm0
  packuswb %xmm6,%xmm4
  packuswb %xmm2,%xmm0
  movdqa %xmm0,%xmm2
  punpckhbw %xmm4,%xmm0
  punpcklbw %xmm4,%xmm2
  movdqa %xmm1,%xmm4
  punpckhbw %xmm5,%xmm1
  punpcklbw %xmm5,%xmm4
  movdqa %xmm2,%xmm5
  punpckhbw %xmm4,%xmm2
  punpcklbw %xmm4,%xmm5
  movups %xmm2,-0x30(%rax)
  movdqa %xmm0,%xmm2
  punpckhbw %xmm1,%xmm0
  punpcklbw %xmm1,%xmm2
  movups %xmm5,-0x40(%rax)
  movups %xmm2,-0x20(%rax)
  movups %xmm0,-0x10(%rax)
  cmp    %rcx,%rax
  jne    L170
  mov    %r8,%rax
  and    $0xfffffffffffffff0,%rax
  lea    (%rdx,%rax,4),%rdx
  cmp    %rax,%r8
  je     L84
L124:
  movzbl 0x3(%rdx),%eax
  movzbl (%rdx),%ecx
  rolw   $0x8,0x1(%rdx)
  mov    %al,(%rdx)
  lea    0x4(%rdx),%rax
  mov    %cl,0x3(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x7(%rdx),%eax
  movzbl 0x4(%rdx),%ecx
  rolw   $0x8,0x5(%rdx)
  mov    %al,0x4(%rdx)
  lea    0x8(%rdx),%rax
  mov    %cl,0x7(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0xb(%rdx),%eax
  movzbl 0x8(%rdx),%ecx
  rolw   $0x8,0x9(%rdx)
  mov    %al,0x8(%rdx)
  lea    0xc(%rdx),%rax
  mov    %cl,0xb(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0xf(%rdx),%eax
  movzbl 0xc(%rdx),%ecx
  rolw   $0x8,0xd(%rdx)
  mov    %al,0xc(%rdx)
  lea    0x10(%rdx),%rax
  mov    %cl,0xf(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x13(%rdx),%eax
  movzbl 0x10(%rdx),%ecx
  rolw   $0x8,0x11(%rdx)
  mov    %al,0x10(%rdx)
  lea    0x14(%rdx),%rax
  mov    %cl,0x13(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x17(%rdx),%eax
  movzbl 0x14(%rdx),%ecx
  rolw   $0x8,0x15(%rdx)
  mov    %al,0x14(%rdx)
  lea    0x18(%rdx),%rax
  mov    %cl,0x17(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x1b(%rdx),%eax
  movzbl 0x18(%rdx),%ecx
  rolw   $0x8,0x19(%rdx)
  mov    %al,0x18(%rdx)
  lea    0x1c(%rdx),%rax
  mov    %cl,0x1b(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x1f(%rdx),%eax
  movzbl 0x1c(%rdx),%ecx
  rolw   $0x8,0x1d(%rdx)
  mov    %al,0x1c(%rdx)
  lea    0x20(%rdx),%rax
  mov    %cl,0x1f(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x23(%rdx),%eax
  movzbl 0x20(%rdx),%ecx
  rolw   $0x8,0x21(%rdx)
  mov    %al,0x20(%rdx)
  lea    0x24(%rdx),%rax
  mov    %cl,0x23(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x27(%rdx),%eax
  movzbl 0x24(%rdx),%ecx
  rolw   $0x8,0x25(%rdx)
  mov    %al,0x24(%rdx)
  lea    0x28(%rdx),%rax
  mov    %cl,0x27(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x2b(%rdx),%eax
  movzbl 0x28(%rdx),%ecx
  rolw   $0x8,0x29(%rdx)
  mov    %al,0x28(%rdx)
  lea    0x2c(%rdx),%rax
  mov    %cl,0x2b(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x2f(%rdx),%eax
  movzbl 0x2c(%rdx),%ecx
  rolw   $0x8,0x2d(%rdx)
  mov    %al,0x2c(%rdx)
  lea    0x30(%rdx),%rax
  mov    %cl,0x2f(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x33(%rdx),%eax
  movzbl 0x30(%rdx),%ecx
  rolw   $0x8,0x31(%rdx)
  mov    %al,0x30(%rdx)
  lea    0x34(%rdx),%rax
  mov    %cl,0x33(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x37(%rdx),%eax
  movzbl 0x34(%rdx),%ecx
  rolw   $0x8,0x35(%rdx)
  mov    %al,0x34(%rdx)
  lea    0x38(%rdx),%rax
  mov    %cl,0x37(%rdx)
  cmp    %rax,%rdi
  jbe    L84
  movzbl 0x3b(%rdx),%eax
  movzbl 0x38(%rdx),%ecx
  rolw   $0x8,0x39(%rdx)
  mov    %cl,0x3b(%rdx)
  mov    %al,0x38(%rdx)
L84:
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D0
type_guessed: byte[16]

tool: {"D0": [0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00]}

assistant: ```c
void foo(char *bp, unsigned n) {
  register char c;
  register char *ep = bp + n;
  register char *sp;
  while (bp < ep) {
    sp = bp + 3;
    c = *sp;
    *sp = *bp;
    *bp++ = c;
    sp = bp + 1;
    c = *sp;
    *sp = *bp;
    *bp++ = c;
    bp += 2;
  }
}
```