int __usercall sub_5C81E0<eax>(CDataStore *a1<ecx>, int _EDI<edi>, int _ESI<esi>)
{
  int result; // eax@1
  int value; // [sp+18h] [bp-4h]@1
  int v5; // [sp+Ch] [bp-10h]@1
  signed int v6; // [sp+10h] [bp-Ch]@1
  signed int v8; // [sp+14h] [bp-8h]@1

  CDataStore_ReadInt32(a1, &value);
  v5 = (value & 0x7FF) << 21 >> 21;
  __asm
  {
    fild    [ebp+var_10]
    fld     ds:dbl_8901E8
  }
  v6 = (signed int)((((unsigned int)value >> 11) & 0x7FF) << 21) >> 21;
  __asm
  {
    fmul    st(1), st
    fxch    st(1)
    fstp    [ebp+var_1C]
  }
  v8 = (signed int)((unsigned int)value >> 22 << 22) >> 22;
  __asm { fild    [ebp+var_C] }
  result = _ESI;
  __asm
  {
    fmul    st, st(1)
    fstp    [ebp+var_18]
    fimul   [ebp+var_8]
    fstp    [ebp+var_14]
    fld     dword ptr [edi]
    fsub    [ebp+var_1C]
    fstp    dword ptr [esi]
    fld     dword ptr [edi+4]
    fsub    [ebp+var_18]
    fstp    dword ptr [esi+4]
    fld     dword ptr [edi+8]
    fsub    [ebp+var_14]
    fstp    dword ptr [esi+8]
  }
  return result;
}