user: 下面的汇编指令对应的C源代码是什么:

```asm
<checksum_nofold>:
  endbr64
  mov    %rdi,%rcx
  mov    %rsi,%rdi
  shr    %rsi
  mov    %edx,%eax
  je     L152
  lea    -0x1(%rsi),%r8
  cmp    $0xe,%r8
  jbe    L10
  mov    %rdi,%r9
  movdqa D8(%rip),%xmm5
  mov    %rcx,%rax
  pxor   %xmm3,%xmm3
  shr    $0x5,%r9
  mov    %r9,%r8
  shl    $0x7,%r8
  add    %rcx,%r8
  nopl   0x0(%rax,%rax,1)
L132:
  movdqu 0x10(%rax),%xmm6
  movdqu 0x30(%rax),%xmm7
  sub    $0xffffffffffffff80,%rax
  movdqu -0x80(%rax),%xmm0
  movdqu -0x60(%rax),%xmm1
  shufps $0x88,%xmm6,%xmm0
  shufps $0x88,%xmm7,%xmm1
  movdqa %xmm0,%xmm2
  punpcklwd %xmm1,%xmm0
  punpckhwd %xmm1,%xmm2
  movdqa %xmm0,%xmm1
  movdqu -0x30(%rax),%xmm6
  movdqu -0x10(%rax),%xmm7
  punpckhwd %xmm2,%xmm1
  punpcklwd %xmm2,%xmm0
  movdqu -0x20(%rax),%xmm2
  punpcklwd %xmm1,%xmm0
  movdqu -0x40(%rax),%xmm1
  shufps $0x88,%xmm7,%xmm2
  pand   %xmm5,%xmm0
  shufps $0x88,%xmm6,%xmm1
  movdqa %xmm1,%xmm4
  punpcklwd %xmm2,%xmm1
  punpckhwd %xmm2,%xmm4
  movdqa %xmm1,%xmm2
  punpckhwd %xmm4,%xmm2
  punpcklwd %xmm4,%xmm1
  punpcklwd %xmm2,%xmm1
  pand   %xmm5,%xmm1
  packuswb %xmm1,%xmm0
  paddb  %xmm0,%xmm3
  cmp    %r8,%rax
  jne    L132
  movdqa %xmm3,%xmm0
  mov    %r9,%r8
  psrldq $0x8,%xmm0
  shl    $0x4,%r8
  paddb  %xmm0,%xmm3
  pxor   %xmm0,%xmm0
  psadbw %xmm0,%xmm3
  movd   %xmm3,%eax
  add    %edx,%eax
  mov    %r8d,%edx
  cmp    %rsi,%r8
  je     L152
L28:
  lea    0x1(%rdx),%r9d
  add    (%rcx,%r8,8),%al
  movslq %r9d,%r9
  cmp    %rsi,%r9
  jae    L152
  lea    0x0(,%r9,8),%r8
  add    (%rcx,%r9,8),%al
  lea    0x2(%rdx),%r9d
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x3(%rdx),%r9d
  add    0x8(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x4(%rdx),%r9d
  add    0x10(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x5(%rdx),%r9d
  add    0x18(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x6(%rdx),%r9d
  add    0x20(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x7(%rdx),%r9d
  add    0x28(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x8(%rdx),%r9d
  add    0x30(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0x9(%rdx),%r9d
  add    0x38(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0xa(%rdx),%r9d
  add    0x40(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0xb(%rdx),%r9d
  add    0x48(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0xc(%rdx),%r9d
  add    0x50(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  lea    0xd(%rdx),%r9d
  add    0x58(%rcx,%r8,1),%al
  movslq %r9d,%r9
  cmp    %r9,%rsi
  jbe    L152
  add    $0xe,%edx
  add    0x60(%rcx,%r8,1),%al
  movslq %edx,%rdx
  cmp    %rdx,%rsi
  jbe    L152
  add    0x68(%rcx,%r8,1),%al
  nopw   0x0(%rax,%rax,1)
L152:
  test   $0x1,%dil
  je     L98
  add    -0x1(%rcx,%rdi,1),%al
L98:
  ret
L10:
  xor    %edx,%edx
  xor    %r8d,%r8d
  jmp    L28
```

tool_calls: name: read_data
arguments: data_label: D8
type_guessed: byte[16]

tool: {"D8": [0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00]}

assistant: ```c
uint32_t checksum_nofold(void *data, size_t len, uint32_t sum) {
  uint16_t *words = data;
  int i;
  for (i = 0; i < len / 2; i++)
    sum += words[i];
  if (len & 1)
    sum += ((char *)data)[len - 1];
  return sum;
}
```