KiSaveDebugRegisterState

INT64 __fastcall KiSaveDebugRegisterState(){
  __int64 v0; 
  KPCR *Pcr; 
  unsigned __int64 v2; 
  unsigned __int64 v3; 
  unsigned __int64 v4; 
  unsigned __int64 v5; 
  unsigned __int64 v6; 
  unsigned __int64 v7; 
  INT64 result; 
  int v9; 
  unsigned __int64 v10; 
  unsigned __int64 v11; 
  int v12; 
  unsigned __int64 v13; 
  unsigned int v14; 
  unsigned __int64 v15; 
  unsigned __int64 v16; 
  unsigned __int64 v17; 
  int v18; 
  unsigned __int64 v19; 
  unsigned int v20; 
  Pcr = KeGetPcr();
  v2 = __readdr(0);
  v3 = __readdr(1u);
  *(_QWORD *)(v0 + 88) = v2;
  *(_QWORD *)(v0 + 96) = v3;
  v4 = __readdr(2u);
  v5 = __readdr(3u);
  *(_QWORD *)(v0 + 104) = v4;
  *(_QWORD *)(v0 + 112) = v5;
  v6 = __readdr(6u);
  v7 = __readdr(7u);
  *(_QWORD *)(v0 + 120) = v6;
  *(_QWORD *)(v0 + 128) = v7;
  result = 0i64;
  __writedr(7u, 0i64);
  if( (*((_BYTE *)KeGetPcr() + 34594) & 2) != 0 && (v7 & 0x300) != 0 )
  {
    if( (KiCpuTracingFlags & 2) != 0 )
    {
      *(_QWORD *)(v0 + 152) = 0i64;
      *(_QWORD *)(v0 + 144) = 0i64;
      *(_QWORD *)(v0 + 168) = 0i64;
      *(_QWORD *)(v0 + 160) = 0i64;
    }
    else
    {
      v9 = KiLastBranchTOSMSR;
      if( KiLastBranchTOSMSR )
      {
        v10 = __readmsr(KiLastBranchTOSMSR);
        v9 = v10;
      }
      v11 = __readmsr(v9 + KiLastBranchFromBaseMSR);
      *(_DWORD *)(v0 + 152) = v11;
      v12 = KiLastBranchToBaseMSR;
      *(_DWORD *)(v0 + 156) = HIDWORD(v11);
      *(_QWORD *)(v0 + 144) = __readmsr(v9 + v12);
      *(_QWORD *)(v0 + 168) = __readmsr(KiLastExceptionFromBaseMSR);
      *(_QWORD *)(v0 + 160) = __readmsr(KiLastExceptionToBaseMSR);
      v13 = __readmsr(0x1D9u);
      v14 = HIDWORD(v13);
      result = (unsigned int)v13 & 0xFFFFFFFC;
      __writemsr(0x1D9u, __PAIR64__(v14, result));
    }
  }
  if( (*((_WORD *)Pcr + 356) & 0x355) != 0 )
  {
    v15 = *((_QWORD *)Pcr + 85);
    __writedr(0, *((_QWORD *)Pcr + 84));
    __writedr(1u, v15);
    v16 = *((_QWORD *)Pcr + 87);
    __writedr(2u, *((_QWORD *)Pcr + 86));
    __writedr(3u, v16);
    v17 = *((_QWORD *)Pcr + 89);
    result = 0i64;
    __writedr(6u, 0i64);
    __writedr(7u, v17);
    if( (*((_BYTE *)KeGetPcr() + 34594) & 2) != 0 && (v17 & 0x300) != 0 && (KiCpuTracingFlags & 2) == 0 )
    {
      if( (v17 & 0x200) != 0 )
        LODWORD(result) = 2;
      if( (v17 & 0x100) != 0 )
        LODWORD(result) = result | 1;
      v18 = result;
      v19 = __readmsr(0x1D9u);
      v20 = HIDWORD(v19);
      result = v18 | (unsigned int)v19 & 0xFFFFFFFC;
      __writemsr(0x1D9u, __PAIR64__(v20, result));
    }
  }
  return result;
}

Referenced by: