user: Demonstrate the C code that generates the assembly output below:

```asm
<unpackforblock2_64>:
  endbr64
  mov    (%rsi),%rcx
  mov    %rdx,%r8
  mov    (%rdx),%rdx
  movd   %edi,%xmm4
  pshufd $0x0,%xmm4,%xmm1
  mov    (%rcx),%eax
  add    $0x20,%rcx
  mov    %rcx,(%rsi)
  mov    %eax,%esi
  mov    %eax,%ecx
  movd   %eax,%xmm0
  mov    %eax,%r10d
  sar    $0x4,%esi
  sar    $0x2,%ecx
  mov    %eax,%r9d
  mov    %eax,%r11d
  movd   %esi,%xmm2
  mov    %eax,%esi
  movd   %ecx,%xmm6
  mov    %eax,%ecx
  sar    $0x6,%esi
  punpckldq %xmm6,%xmm0
  sar    $0xa,%ecx
  movd   %esi,%xmm5
  mov    %eax,%esi
  movd   %ecx,%xmm4
  mov    %eax,%ecx
  sar    $0x8,%esi
  punpckldq %xmm5,%xmm2
  sar    $0x12,%ecx
  punpcklqdq %xmm2,%xmm0
  movdqa D8(%rip),%xmm2
  movd   %ecx,%xmm6
  mov    %eax,%ecx
  sar    $0x18,%ecx
  pand   %xmm2,%xmm0
  and    $0x3,%ecx
  paddd  %xmm1,%xmm0
  add    %edi,%ecx
  movups %xmm0,(%rdx)
  movd   %esi,%xmm0
  mov    %eax,%esi
  sar    $0xc,%esi
  punpckldq %xmm4,%xmm0
  mov    %ecx,0x30(%rdx)
  mov    %eax,%ecx
  movd   %esi,%xmm3
  mov    %eax,%esi
  sar    $0x1a,%ecx
  sar    $0xe,%esi
  and    $0x3,%ecx
  movd   %esi,%xmm7
  mov    %eax,%esi
  add    %edi,%ecx
  punpckldq %xmm7,%xmm3
  sar    $0x10,%esi
  mov    %ecx,0x34(%rdx)
  mov    %eax,%ecx
  punpcklqdq %xmm3,%xmm0
  sar    $0x1c,%ecx
  pand   %xmm2,%xmm0
  and    $0x3,%ecx
  paddd  %xmm1,%xmm0
  add    %edi,%ecx
  movups %xmm0,0x10(%rdx)
  movd   %esi,%xmm0
  mov    %eax,%esi
  sar    $0x14,%esi
  punpckldq %xmm6,%xmm0
  mov    %ecx,0x38(%rdx)
  mov    $0x20,%ecx
  movd   %esi,%xmm3
  mov    %eax,%esi
  sar    $0x16,%esi
  movd   %esi,%xmm5
  mov    %eax,%esi
  punpckldq %xmm5,%xmm3
  shr    $0x1e,%esi
  punpcklqdq %xmm3,%xmm0
  pand   %xmm2,%xmm0
  paddd  %xmm1,%xmm0
  movups %xmm0,0x20(%rdx)
  movd   %esi,%xmm0
  mov    %eax,%esi
  sar    %cl,%esi
  mov    $0x22,%ecx
  sar    %cl,%r10d
  and    $0x3,%esi
  mov    %r10d,%ecx
  movd   %esi,%xmm4
  mov    %eax,%esi
  mov    %eax,%r10d
  and    $0x3,%ecx
  punpckldq %xmm4,%xmm0
  movd   %ecx,%xmm7
  mov    $0x24,%ecx
  sar    %cl,%r9d
  movdqa %xmm7,%xmm2
  mov    $0x26,%ecx
  and    $0x3,%r9d
  sar    %cl,%esi
  movd   %r9d,%xmm7
  mov    %esi,%ecx
  mov    %eax,%esi
  mov    %eax,%r9d
  punpckldq %xmm7,%xmm2
  and    $0x3,%ecx
  punpcklqdq %xmm2,%xmm0
  paddd  %xmm1,%xmm0
  movups %xmm0,0x3c(%rdx)
  movd   %ecx,%xmm0
  mov    $0x28,%ecx
  sar    %cl,%esi
  mov    $0x2a,%ecx
  and    $0x3,%esi
  sar    %cl,%r11d
  mov    %r11d,%ecx
  movd   %esi,%xmm6
  mov    %eax,%esi
  mov    %eax,%r11d
  and    $0x3,%ecx
  punpckldq %xmm6,%xmm0
  movd   %ecx,%xmm3
  mov    $0x2c,%ecx
  sar    %cl,%r9d
  movdqa %xmm3,%xmm2
  mov    $0x2e,%ecx
  and    $0x3,%r9d
  sar    %cl,%esi
  movd   %r9d,%xmm5
  mov    %esi,%ecx
  mov    %eax,%esi
  mov    %eax,%r9d
  punpckldq %xmm5,%xmm2
  and    $0x3,%ecx
  punpcklqdq %xmm2,%xmm0
  paddd  %xmm1,%xmm0
  movups %xmm0,0x4c(%rdx)
  movd   %ecx,%xmm0
  mov    $0x30,%ecx
  sar    %cl,%esi
  mov    $0x32,%ecx
  sar    %cl,%r10d
  and    $0x3,%esi
  mov    %r10d,%ecx
  and    $0x3,%ecx
  movd   %ecx,%xmm4
  mov    $0x34,%ecx
  sar    %cl,%r9d
  movdqa %xmm4,%xmm2
  movd   %esi,%xmm4
  mov    $0x36,%ecx
  and    $0x3,%r9d
  mov    %eax,%esi
  punpckldq %xmm4,%xmm0
  movd   %r9d,%xmm7
  sar    %cl,%esi
  mov    %eax,%r9d
  punpckldq %xmm7,%xmm2
  mov    %esi,%ecx
  mov    %eax,%esi
  punpcklqdq %xmm2,%xmm0
  and    $0x3,%ecx
  paddd  %xmm1,%xmm0
  movups %xmm0,0x5c(%rdx)
  movd   %ecx,%xmm0
  mov    $0x38,%ecx
  sar    %cl,%esi
  mov    $0x3a,%ecx
  sar    %cl,%r11d
  and    $0x3,%esi
  mov    %r11d,%ecx
  movd   %esi,%xmm6
  and    $0x3,%ecx
  punpckldq %xmm6,%xmm0
  movd   %ecx,%xmm5
  mov    $0x3c,%ecx
  sar    %cl,%r9d
  movdqa %xmm5,%xmm2
  mov    $0x3e,%ecx
  and    $0x3,%r9d
  sar    %cl,%eax
  movd   %r9d,%xmm5
  add    %edi,%eax
  punpckldq %xmm5,%xmm2
  mov    %eax,0x7c(%rdx)
  punpcklqdq %xmm2,%xmm0
  paddd  %xmm1,%xmm0
  movups %xmm0,0x6c(%rdx)
  subq   $0xffffffffffffff80,(%r8)
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D8
type: byte[16]

tool: {"D8": [0x03,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x03,0x00,0x00,0x00]}

assistant: ```c
void unpackforblock2_64(const uint64_t base, const uint8_t **pw, uint64_t **pout) {
  const uint64_t *pw64 = *(const uint64_t **)pw;
  uint64_t *out = *pout;
  const uint64_t mask = (3ULL);
  uint64_t w0 = pw64[0];
  *pw += 8;
  out[0] = base + ((w0)&mask);
  out[1] = base + ((w0 >> 2) & mask);
  out[2] = base + ((w0 >> 4) & mask);
  out[3] = base + ((w0 >> 6) & mask);
  out[4] = base + ((w0 >> 8) & mask);
  out[5] = base + ((w0 >> 10) & mask);
  out[6] = base + ((w0 >> 12) & mask);
  out[7] = base + ((w0 >> 14) & mask);
  out[8] = base + ((w0 >> 16) & mask);
  out[9] = base + ((w0 >> 18) & mask);
  out[10] = base + ((w0 >> 20) & mask);
  out[11] = base + ((w0 >> 22) & mask);
  out[12] = base + ((w0 >> 24) & mask);
  out[13] = base + ((w0 >> 26) & mask);
  out[14] = base + ((w0 >> 28) & mask);
  out[15] = base + ((w0 >> 30) & mask);
  out[16] = base + ((w0 >> 32) & mask);
  out[17] = base + ((w0 >> 34) & mask);
  out[18] = base + ((w0 >> 36) & mask);
  out[19] = base + ((w0 >> 38) & mask);
  out[20] = base + ((w0 >> 40) & mask);
  out[21] = base + ((w0 >> 42) & mask);
  out[22] = base + ((w0 >> 44) & mask);
  out[23] = base + ((w0 >> 46) & mask);
  out[24] = base + ((w0 >> 48) & mask);
  out[25] = base + ((w0 >> 50) & mask);
  out[26] = base + ((w0 >> 52) & mask);
  out[27] = base + ((w0 >> 54) & mask);
  out[28] = base + ((w0 >> 56) & mask);
  out[29] = base + ((w0 >> 58) & mask);
  out[30] = base + ((w0 >> 60) & mask);
  out[31] = base + (w0 >> 62);
  *pout += 32;
}
```