KiTpDecodeModRmOperand

NTSTATUS __stdcall KiTpDecodeModRmOperand(INT64 a1, INT64 a2, UINT64 a3, CHAR a4, CHAR a5){
  __int64 v5; 
  INT64 v6; 
  unsigned __int8 v7; 
  __int64 v10; 
  __int64 v11; 
  _BYTE *v12; 
  unsigned int v13; 
  __int64 *v14; 
  _QWORD *v15; 
  unsigned __int64 v16; 
  __int64 *v17; 
  __int64 v18; 

  v5 = 0i64;
  v6 = a1;
  v7 = *(_BYTE *)(a1 + 26);
  *(_BYTE *)a4 = *(_BYTE *)(a2 + 16);
  *(_BYTE *)a5 = 0;
  v10 = 0i64;
  if( (v7 & 0xC0) == 0xC0 )
  {
    LODWORD(v11) = KiTpGetRegisterAddressByIndex(v6, a2, v7 & 7, *(_BYTE *)(v6 + 25) & 1, 1);
    v10 = v11;
    *v12 = 0;
    *(_BYTE *)a5 = 1;
  }
  else if( (v7 & 7) == 4 )
  {
    v13 = *(unsigned __int8 *)(v6 + 27);
    if( (*(_BYTE *)(v6 + 27) & 7) != 5 || v7 >= 0x40u )
    {
      LODWORD(v14) = KiTpGetRegisterAddressByIndex(v6, a2, v13 & 7, *(_BYTE *)(v6 + 25) & 1, 0);
      v10 = *v14;
    }
    if( (v13 & 0x38) != 32 || (*(_BYTE *)(v6 + 25) & 2) != 0 )
    {
      LODWORD(v15) = KiTpGetRegisterAddressByIndex(v6, a2, (v13 >> 3) & 7, (*(_BYTE *)(v6 + 25) & 2) != 0, 0);
      v5 = *v15 << (v16 >> 6);
    }
  }
  else if( v7 >= 0x40u || (v7 & 7) != 5 || (*(_BYTE *)(v6 + 25) & 1) != 0 )
  {
    LODWORD(v17) = KiTpGetRegisterAddressByIndex(v6, a2, v7 & 7, *(_BYTE *)(v6 + 25) & 1, 0);
    v10 = *v17;
  }
  else
  {
    v10 = *(_QWORD *)(*(_QWORD *)(a2 + 8) + 248i64) + *(unsigned __int8 *)(v6 + 24);
  }
  v18 = v10 + v5 + *(int *)(v6 + 28);
  *(_QWORD *)a3 = v18;
  return v18;
}

Referenced by: