CSCDCCExaminer.cc

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#include "EventFilter/CSCRawToDigi/interface/CSCDCCExaminer.h"

#ifdef LOCAL_UNPACK
#include <string.h>

#else

#include <cstring>
#include <cassert>

/*
#ifdef CSC_DEBUG
#include <iostream>
#define COUT std::COUT
#define CERR std::CERR
#else
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#define COUT LogTrace("CSCDCCExaminer")
// #define CERR edm::LogWarning("CSCDCCExaminer")
#define CERR LogDebug("CSCDCCExaminer")
#endif
*/

#endif

#include <iomanip>
using namespace std;

void CSCDCCExaminer::crcALCT(bool enable) {
  checkCrcALCT = enable;
  if (checkCrcALCT)
    sERROR[10] = "ALCT CRC Error                                   ";
  else
    sERROR[10] = "ALCT CRC Error ( disabled )                      ";
}

void CSCDCCExaminer::crcTMB(bool enable) {
  checkCrcTMB = enable;
  if (checkCrcTMB)
    sERROR[15] = "TMB CRC Error                                    ";
  else
    sERROR[15] = "TMB CRC Error ( disabled )                       ";
}

void CSCDCCExaminer::crcCFEB(bool enable) {
  checkCrcCFEB = enable;
  if (checkCrcCFEB)
    sERROR[18] = "CFEB CRC Error                                   ";
  else
    sERROR[18] = "CFEB CRC Error ( disabled )                      ";
}

void CSCDCCExaminer::modeDDU(bool enable) {
  modeDDUonly = enable;
  if (modeDDUonly) {
    sERROR[25] = "DCC Trailer Missing                              ";
    sERROR[26] = "DCC Header Missing                               ";
  } else {
    sERROR[25] = "DCC Trailer Missing (disabled)                   ";
    sERROR[26] = "DCC Header Missing (disabled)                    ";
  }
}

CSCDCCExaminer::CSCDCCExaminer(ExaminerMaskType mask)
    : nERRORS(29),
      nWARNINGS(5),
      nPAYLOADS(16),
      nSTATUSES(29),
      sERROR(nERRORS),
      sWARNING(nWARNINGS),
      sERROR_(nERRORS),
      sWARNING_(nWARNINGS),
      sDMBExpectedPayload(nPAYLOADS),
      sDMBEventStaus(nSTATUSES),
      examinerMask(mask) {
#ifdef LOCAL_UNPACK
  COUT.redirect(std::cout);
  CERR.redirect(std::cerr);
#endif

  sERROR[0] = " Any errors                                       ";
  sERROR[1] = " DDU Trailer Missing                              ";
  sERROR[2] = " DDU Header Missing                               ";
  sERROR[3] = " DDU CRC Error (not yet implemented)              ";
  sERROR[4] = " DDU Word Count Error                             ";
  sERROR[5] = " DMB Trailer Missing                              ";
  sERROR[6] = " DMB Header Missing                               ";
  sERROR[7] = " ALCT Trailer Missing                             ";
  sERROR[8] = " ALCT Header Missing                              ";
  sERROR[9] = " ALCT Word Count Error                            ";
  sERROR[10] = "ALCT CRC Error                                   ";
  sERROR[11] = "ALCT Trailer Bit Error                           ";
  // ^^^ This is due to seeing many events in ddu293 (also, some in ddu294)
  // with some bits in the 1st ALCT D-Header being lost. This causes a chain of errors:
  // - TMB Trailer is not identified and TMB word count mismatch occur when Trailer is found
  // - CFEB sample count is not reset on ALCT Trailer.
  // To merge all these errors in one,
  // the D-signature in the 1st ALCT Trailer will not be required for identifying the ALCT Trailer;
  // However, if these bits are found to be missing, ERROR[11] will be flagged.
  // This is just a temporary patch to make the output look less clattered.
  sERROR[12] = "TMB Trailer Missing                              ";
  sERROR[13] = "TMB Header Missing                               ";
  sERROR[14] = "TMB Word Count Error                             ";
  sERROR[15] = "TMB CRC Error                                    ";
  sERROR[16] = "CFEB Word Count Per Sample Error                 ";
  sERROR[17] = "CFEB Sample Count Error                          ";
  sERROR[18] = "CFEB CRC Error                                   ";
  sERROR[19] = "DDU Event Size Limit Error                       ";
  sERROR[20] = "C-Words                                          ";
  sERROR[21] = "ALCT DAV Error                                   ";
  sERROR[22] = "TMB DAV Error                                    ";
  sERROR[23] = "CFEB DAV Error                                   ";
  sERROR[24] = "DMB Active Error                                 ";
  sERROR[25] = "DCC Trailer Missing                              ";
  sERROR[26] = "DCC Header Missing                               ";
  sERROR[27] = "DMB DAV vs. DMB Active mismatch Error            ";
  sERROR[28] = "Extra words between DDU Header and first DMB header";

  //    sERROR[21] = "DDU Header vs. Trailer mismatch for DAV or Avtive"; // oboslete since 16.09.05

  sWARNING[0] = " Extra words between DDU Trailer and DDU Header ";
  sWARNING[1] = " DDU Header Incomplete                          ";

  sDMBExpectedPayload[0] = "CFEB1_ACTIVE";
  sDMBExpectedPayload[1] = "CFEB2_ACTIVE";
  sDMBExpectedPayload[2] = "CFEB3_ACTIVE";
  sDMBExpectedPayload[3] = "CFEB4_ACTIVE";
  sDMBExpectedPayload[4] = "CFEB5_ACTIVE";
  sDMBExpectedPayload[5] = "ALCT_DAV";
  sDMBExpectedPayload[6] = "TMB_DAV";
  sDMBExpectedPayload[7] = "CFEB1_DAV";
  sDMBExpectedPayload[8] = "CFEB2_DAV";
  sDMBExpectedPayload[9] = "CFEB3_DAV";
  sDMBExpectedPayload[10] = "CFEB4_DAV";
  sDMBExpectedPayload[11] = "CFEB5_DAV";
  sDMBExpectedPayload[12] = "CFEB6_DAV";
  sDMBExpectedPayload[13] = "CFEB7_DAV";
  sDMBExpectedPayload[14] = "CFEB6_ACTIVE";
  sDMBExpectedPayload[15] = "CFEB7_ACTIVE";

  sDMBEventStaus[0] = "ALCT_FIFO_FULL";
  sDMBEventStaus[1] = "TMB_FIFO_FULL";
  sDMBEventStaus[2] = "CFEB1_FIFO_FULL";
  sDMBEventStaus[3] = "CFEB2_FIFO_FULL";
  sDMBEventStaus[4] = "CFEB3_FIFO_FULL";
  sDMBEventStaus[5] = "CFEB4_FIFO_FULL";
  sDMBEventStaus[6] = "CFEB5_FIFO_FULL";
  sDMBEventStaus[7] = "ALCT_START_TIMEOUT";
  sDMBEventStaus[8] = "TMB_START_TIMEOUT";
  sDMBEventStaus[9] = "CFEB1_START_TIMEOUT";
  sDMBEventStaus[10] = "CFEB2_START_TIMEOUT";
  sDMBEventStaus[11] = "CFEB3_START_TIMEOUT";
  sDMBEventStaus[12] = "CFEB4_START_TIMEOUT";
  sDMBEventStaus[13] = "CFEB5_START_TIMEOUT";
  sDMBEventStaus[14] = "ALCT_END_TIMEOUT";
  sDMBEventStaus[15] = "TMB_END_TIMEOUT";
  sDMBEventStaus[16] = "CFEB1_END_TIMEOUT";
  sDMBEventStaus[17] = "CFEB2_END_TIMEOUT";
  sDMBEventStaus[18] = "CFEB3_END_TIMEOUT";
  sDMBEventStaus[19] = "CFEB4_END_TIMEOUT";
  sDMBEventStaus[20] = "CFEB5_END_TIMEOUT";
  sDMBEventStaus[21] = "CFEB Active-DAV mismatch";
  sDMBEventStaus[22] = "B-words found";
  sDMBEventStaus[23] = "CFEB6_FIFO_FULL";
  sDMBEventStaus[24] = "CFEB7_FIFO_FULL";
  sDMBEventStaus[25] = "CFEB6_START_TIMEOUT";
  sDMBEventStaus[26] = "CFEB7_START_TIMEOUT";
  sDMBEventStaus[27] = "CFEB6_END_TIMEOUT";
  sDMBEventStaus[28] = "CFEB7_END_TIMEOUT";

  sERROR_[0] = " Any errors: 00";
  sERROR_[1] = " DDU Trailer Missing: 01";
  sERROR_[2] = " DDU Header Missing: 02";
  sERROR_[3] = " DDU CRC Error (not yet implemented): 03";
  sERROR_[4] = " DDU Word Count Error: 04";
  sERROR_[5] = " DMB Trailer Missing: 05";
  sERROR_[6] = " DMB Header Missing: 06";
  sERROR_[7] = " ALCT Trailer Missing: 07";
  sERROR_[8] = " ALCT Header Missing: 08";
  sERROR_[9] = " ALCT Word Count Error: 09";
  sERROR_[10] = "ALCT CRC Error: 10";
  sERROR_[11] = "ALCT Trailer Bit Error: 11";
  sERROR_[12] = "TMB Trailer Missing: 12";
  sERROR_[13] = "TMB Header Missing: 13";
  sERROR_[14] = "TMB Word Count Error: 14";
  sERROR_[15] = "TMB CRC Error: 15";
  sERROR_[16] = "CFEB Word Count Per Sample Error: 16";
  sERROR_[17] = "CFEB Sample Count Error: 17";
  sERROR_[18] = "CFEB CRC Error: 18";
  sERROR_[19] = "DDU Event Size Limit Error: 19";
  sERROR_[20] = "C-Words: 20";
  sERROR_[21] = "ALCT DAV Error: 21";
  sERROR_[22] = "TMB DAV Error: 22";
  sERROR_[23] = "CFEB DAV Error: 23";
  sERROR_[24] = "DMB Active Error: 24";
  sERROR_[25] = "DCC Trailer Missing: 25";
  sERROR_[26] = "DCC Header Missing: 26";
  sERROR_[27] = "DMB DAV vs. DMB Active mismatch Error: 27";
  sERROR_[28] = "Extra words between DDU Header and first DMB header: 28";
  //    sERROR_[21] = "DDU Header vs. Trailer mismatch for DAV or Avtive: 21"; // oboslete since 16.09.05

  sWARNING_[0] = " Extra words between DDU Trailer and DDU Header: 00";
  sWARNING_[1] = " DDU Header Incomplete: 02";

  fDCC_Header = false;
  fDCC_Trailer = false;
  fDDU_Header = false;
  fDDU_Trailer = false;
  fDMB_Header = false;
  fDMB_Trailer = false;
  fALCT_Header = false;
  fTMB_Header = false;
  fALCT_Format2007 = true;
  fTMB_Format2007 = true;
  fFormat2013 = false;

  cntDDU_Headers = 0;
  cntDDU_Trailers = 0;
  cntCHAMB_Headers.clear();
  cntCHAMB_Trailers.clear();

  DAV_ALCT = false;
  DAV_TMB = false;
  DAV_CFEB = 0;
  DMB_Active = 0;
  nDMBs = 0;
  DDU_WordsSinceLastHeader = 0;
  DDU_WordCount = 0;
  DDU_WordMismatch_Occurrences = 0;
  DDU_WordsSinceLastTrailer = 0;
  ALCT_ZSE = 0;
  nWG_round_up = 0;

  TMB_WordsRPC = 0;
  TMB_WordsGEM = 0;
  TMB_Firmware_Revision = 0;
  DDU_Firmware_Revision = 0;
  zeroCounts();

  checkCrcALCT = false;
  ALCT_CRC = 0;
  checkCrcTMB = false;
  TMB_CRC = 0;
  checkCrcCFEB = false;
  CFEB_CRC = 0;

  modeDDUonly = false;
  sourceID = 0xFFF;
  currentChamber = -1;

  //headerDAV_Active = -1; // Trailer vs. Header check // Obsolete since 16.09.05

  clear();
  buf_1 = &(tmpbuf[0]);
  buf0 = &(tmpbuf[4]);
  buf1 = &(tmpbuf[8]);
  buf2 = &(tmpbuf[12]);

  bzero(tmpbuf, sizeof(uint16_t) * 16);
}

int32_t CSCDCCExaminer::check(const uint16_t*& buffer, int32_t length) {
  if (length <= 0)
    return -1;

  buffer_start = buffer;

  bool fTMB_MiniScope_Start = false;
  bool fTMB_RPC_Start = false;
  bool fTMB_GEM_Start = false;
  bool fTMB_BlockedCFEBs_Start = false;

  bool fTMB_MiniScope = false;
  bool fTMB_RPC = false;
  bool fTMB_GEM = false;
  bool fTMB_BlockedCFEBs = false;

  while (length > 0) {
    // == Store last 4 read buffers in pipeline-like memory (note that memcpy works quite slower!)
    buf_2 = buf_1;  //  This bufer was not needed so far
    buf_1 = buf0;
    buf0 = buf1;
    buf1 = buf2;
    buf2 = buffer;

    // check for too long event
    if (!fERROR[19] && DDU_WordsSinceLastHeader > 100000) {
      fERROR[19] = true;
      bERROR |= 0x80000;
    }

    // increment counter of 64-bit words since last DDU Header
    // this counter is reset if DDU Header is found
    if (fDDU_Header) {
      ++DDU_WordsSinceLastHeader;
    }

    // increment counter of 64-bit words since last DDU Trailer
    // this counter is reset if DDU Trailer is found
    if (fDDU_Trailer) {
      ++DDU_WordsSinceLastTrailer;
    }

    if (fALCT_Header) {
      if (ALCT_ZSE) {
        for (int g = 0; g < 4; g++) {
          if (buf0[g] == 0x1000) {
            ALCT_WordsSinceLastHeader = ALCT_WordsSinceLastHeader + nWG_round_up;
          } else if (buf0[g] != 0x3000)
            ALCT_WordsSinceLastHeader = ALCT_WordsSinceLastHeader + 1;
        }
      } else
        ALCT_WordsSinceLastHeader = ALCT_WordsSinceLastHeader + 4;
      ALCT_WordsSinceLastHeaderZeroSuppressed = ALCT_WordsSinceLastHeaderZeroSuppressed + 4;
    }

    // increment counter of 16-bit words since last DMB*TMB Header match
    // this counter is reset if TMB Header is found right after DMB Header or ALCT Trailer
    if (fTMB_Header) {
      TMB_WordsSinceLastHeader = TMB_WordsSinceLastHeader + 4;
    }

    // increment counter of 16-bit words since last of DMB Header, ALCT Trailer, TMB Trailer,
    // CFEB Sample Trailer, CFEB B-word; this counter is reset by all these conditions
    if (fDMB_Header) {
      CFEB_SampleWordCount = CFEB_SampleWordCount + 4;
    }

    // If DDU header is missing we set unphysical 0xFFF value for DDU id
    if (!fDDU_Header) {
      sourceID = 0xFFF;
    }

    if (!modeDDUonly) {
      // DCC Header 1 && DCC Header 2
      // =VB= Added support for Sep. 2008 CMS DAQ DCC format
      if ((((buf0[3] & 0xF000) == 0x5000 && (buf0[0] & 0x00FF) == 0x005F) ||
           ((buf0[3] & 0xF000) == 0x5000 && (buf0[0] & 0x000F) == 0x0008)) &&
          // =VB= Why 0xD900 signature word if only 0xD part is constant???
          // (buf1[3]&0xFF00) == 0xD900 )
          (buf1[3] & 0xF000) == 0xD000) {
        if (fDCC_Header) {
          // == Another DCC Header before encountering DCC Trailer!
          fERROR[25] = true;
          bERROR |= 0x2000000;
          fERROR[0] = true;
          bERROR |= 0x1;
#ifdef LOCAL_UNPACK
          CERR << "\n\nDCC Header Occurrence ";
          CERR << "  ERROR 25    " << sERROR[25] << endl;
#endif
          fDDU_Header = false;

          // go backward for 3 DDU words ( buf2, buf1, and buf0 )
          buffer -= 12;
          buf_1 = &(tmpbuf[0]);  // Just for safety
          buf0 = &(tmpbuf[4]);   // Just for safety
          buf1 = &(tmpbuf[8]);   // Just for safety
          buf2 = &(tmpbuf[12]);  // Just for safety
          bzero(tmpbuf, sizeof(uint16_t) * 16);
          sync_stats();
          return length + 12;
        }

        fDCC_Header = true;
        clear();
      }
    }
    // == Check for Format Control Words, set proper flags, perform self-consistency checks

    // C-words anywhere besides DDU Header
    if (fDDU_Header &&
        ((buf0[0] & 0xF000) == 0xC000 || (buf0[1] & 0xF000) == 0xC000 || (buf0[2] & 0xF000) == 0xC000 ||
         (buf0[3] & 0xF000) == 0xC000) &&
        (/*buf_1[0]!=0x8000 ||*/ buf_1[1] != 0x8000 || buf_1[2] != 0x0001 || buf_1[3] != 0x8000)) {
      fERROR[0] = true;
      bERROR |= 0x1;
      fERROR[20] = true;
      bERROR |= 0x100000;
      // fCHAMB_ERR[20].insert(currentChamber);
      // bCHAMB_ERR[currentChamber] |= 0x100000;
#ifdef LOCAL_UNPACK
      CERR << "\nDDU Header Occurrence = " << cntDDU_Headers;
      CERR << "  ERROR 20 " << sERROR[20] << endl;
#endif
    }

    // == DDU Header found
    if (/*buf0[0]==0x8000 &&*/ buf0[1] == 0x8000 && buf0[2] == 0x0001 && buf0[3] == 0x8000) {
      // headerDAV_Active = (buf1[1]<<16) | buf1[0]; // Obsolete since 16.09.05
      checkDAVs();
      checkTriggerHeadersAndTrailers();

      if (fDDU_Header) {
        // == Another DDU Header before encountering DDU Trailer!
        fERROR[1] = true;
        bERROR |= 0x2;
        fERROR[0] = true;
        bERROR |= 0x1;
#ifdef LOCAL_UNPACK
        CERR << "\n\nDDU Header Occurrence = " << cntDDU_Headers;
        CERR << "  ERROR 1    " << sERROR[1] << endl;
#endif
        fDDU_Header = false;

        // Part of work for chambers that hasn't been done in absent trailer
        if (fDMB_Header || fDMB_Trailer) {
          fERROR[5] = true;
          bERROR |= 0x20;
          // Since here there are no chances to know what this chamber was, force it to be -2
          if (currentChamber == -1)
            currentChamber = -2;
          fCHAMB_ERR[5].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x20;
          fCHAMB_ERR[0].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x1;
#ifdef LOCAL_UNPACK
          CERR << "\n\nDDU Header Occurrence = " << cntDDU_Headers;
          CERR << "  ERROR 5    " << sERROR[5] << endl;
#endif
        }  // One of DMB Trailers is missing ( or both )
        fDMB_Header = false;
        fDMB_Trailer = false;

        if (DMB_Active != nDMBs) {
          fERROR[24] = true;
          bERROR |= 0x1000000;
        }
        DMB_Active = 0;
        nDMBs = 0;

        // Unknown chamber denoted as -2
        // If it still remains in any of errors - put it in error 0
        for (int err = 1; err < nERRORS; ++err)
          if (fCHAMB_ERR[err].find(-2) != fCHAMB_ERR[err].end()) {
            fCHAMB_ERR[0].insert(-2);
            bCHAMB_ERR[-2] |= 0x1;
          }

        bDDU_ERR[sourceID] |= bERROR;
        bDDU_WRN[sourceID] |= bWARNING;

        // go backward for 3 DDU words ( buf2, buf1, and buf0 )
        buffer -= 12;
        buf_1 = &(tmpbuf[0]);  // Just for safety
        buf0 = &(tmpbuf[4]);   // Just for safety
        buf1 = &(tmpbuf[8]);   // Just for safety
        buf2 = &(tmpbuf[12]);  // Just for safety
        bzero(tmpbuf, sizeof(uint16_t) * 16);
        sync_stats();
        return length + 12;
      }

      currentChamber = -1;  // Unknown yet

      if (fDDU_Trailer && DDU_WordsSinceLastTrailer != 4) {
        // == Counted extraneous words between last DDU Trailer and this DDU Header
        fWARNING[0] = true;
        bWARNING |= 0x1;
#ifdef LOCAL_UNPACK
        CERR << "\nDDU Header Occurrence = " << cntDDU_Headers;
        CERR << "  WARNING 0 " << sWARNING[0] << " " << DDU_WordsSinceLastTrailer << " extra 64-bit words" << endl;
#endif
      }

      sourceID = ((buf_1[1] & 0xF) << 8) | ((buf_1[0] & 0xFF00) >> 8);

      DDU_Firmware_Revision = (buf_1[0] >> 4) & 0xF;
      if (DDU_Firmware_Revision > 6) {
        fFormat2013 = true;
        modeDDUonly = true;  // =VB= Force to use DDU only mode (no DCC Data)
      }

      fDDU_Header = true;
      fDDU_Trailer = false;
      DDU_WordCount = 0;
      fDMB_Header = false;
      fDMB_Trailer = false;
      fALCT_Header = false;
      fALCT_Format2007 = true;
      fTMB_Header = false;
      fTMB_Format2007 = true;
      uniqueALCT = true;
      uniqueTMB = true;
      zeroCounts();

      if (modeDDUonly) {
        fDCC_Header = true;
        clear();
      }

      dduBuffers[sourceID] = buf_1;
      dduOffsets[sourceID] = buf_1 - buffer_start;
      dduSize[sourceID] = 0;
      dmbBuffers[sourceID].clear();
      dmbOffsets[sourceID].clear();
      dmbSize[sourceID].clear();

      // Reset all Error and Warning flags to be false
      bDDU_ERR[sourceID] = 0;
      bDDU_WRN[sourceID] = 0;
      bERROR = 0;
      bWARNING = 0;
      bzero(fERROR, sizeof(bool) * nERRORS);
      bzero(fWARNING, sizeof(bool) * nWARNINGS);

      nDMBs = 0;
      DMB_Active = buf1[0] & 0xF;
      DAV_DMB = buf1[1] & 0x7FFF;

      int nDAV_DMBs = 0;
      for (int bit = 0; bit < 15; bit++)
        if (DAV_DMB & (1 << bit))
          nDAV_DMBs++;
      if (DMB_Active != nDAV_DMBs) {
        fERROR[27] = true;
        bERROR |= 0x8000000;
      }

      if ((buf_1[3] & 0xF000) != 0x5000) {
        fWARNING[1] = true;
        bWARNING |= 0x2;
#ifdef LOCAL_UNPACK
        CERR << "\nDDU Header Occurrence = " << cntDDU_Headers;
        CERR << "  WARNING 1 " << sWARNING[1] << ". What must have been Header 1: 0x" << std::hex << buf_1[0] << " 0x"
             << buf_1[1] << " 0x" << buf_1[2] << " 0x" << buf_1[3] << std::dec << endl;
#endif
      }

      ++cntDDU_Headers;
      DDU_WordsSinceLastHeader = 0;  // Reset counter of DDU Words since last DDU Header
#ifdef LOCAL_UNPACK
      COUT << "\n----------------------------------------------------------" << endl;
      COUT << "DDU  Header Occurrence " << cntDDU_Headers
           << " L1A = " << (((buf_1[2] & 0xFFFF) + ((buf_1[3] & 0x00FF) << 16))) << endl;
#endif
    }

    // == DMB Header found
    if ((buf0[0] & 0xF000) == 0xA000 && (buf0[1] & 0xF000) == 0xA000 && (buf0[2] & 0xF000) == 0xA000 &&
        (buf0[3] & 0xF000) == 0xA000) {
      checkDAVs();
      checkTriggerHeadersAndTrailers();

      if (DDU_WordsSinceLastHeader > 3 && !fDMB_Header && !fDMB_Trailer && !nDMBs) {
        fERROR[28] = true;
        bERROR |= 0x10000000;
        ;
      }

      if (fDMB_Header || fDMB_Trailer)  // F or E  DMB Trailer is missed
      {
        fERROR[5] = true;
        bERROR |= 0x20;
        fCHAMB_ERR[5].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x20;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }
      fDMB_Header = true;
      fDMB_Trailer = false;

      // If previous DMB record was not assigned to any chamber ( it still has -1 indentificator )
      // let's free -1 identificator for current use and call undefined chamber from previous record -2
      // ( -2 may already exists in this sets but we have nothing to do with it )
      for (int err = 0; err < nERRORS; ++err)
        if (fCHAMB_ERR[err].find(-1) != fCHAMB_ERR[err].end()) {
          fCHAMB_ERR[err].erase(-1);
          fCHAMB_ERR[err].insert(-2);
        }
      // Two lines below are commented out because payloads never get filled if 0xA header is missing
      //      bCHAMB_PAYLOAD[-2] |= bCHAMB_PAYLOAD[-1];
      //      fCHAMB_PAYLOAD[-1] = 0;
      bCHAMB_STATUS[-2] |= bCHAMB_STATUS[-1];
      bCHAMB_STATUS[-1] = 0;
      bCHAMB_ERR[-2] |= bCHAMB_ERR[-1];
      bCHAMB_ERR[-1] = 0;
      bCHAMB_WRN[-2] |= bCHAMB_WRN[-1];
      bCHAMB_WRN[-1] = 0;

      // Chamber id ( DMB_ID + (DMB_CRATE<<4) ) from header
      currentChamber = buf0[1] & 0x0FFF;
      ++cntCHAMB_Headers[currentChamber];
      bCHAMB_ERR[currentChamber] |= 0;  //Victor's line

      fALCT_Header = false;
      fALCT_Format2007 = true;
      fTMB_Header = false;
      fTMB_Format2007 = true;
      uniqueALCT = true;
      uniqueTMB = true;

      fTMB_MiniScope_Start = false;
      fTMB_RPC_Start = false;
      fTMB_GEM_Start = false;
      fTMB_BlockedCFEBs_Start = false;

      fTMB_MiniScope = false;
      fTMB_RPC = false;
      fTMB_GEM = false;
      fTMB_BlockedCFEBs = false;

      zeroCounts();
      CFEB_CRC = 0;

      nDMBs++;

      dmbBuffers[sourceID][currentChamber] = buf0 - 4;
      dmbOffsets[sourceID][currentChamber] = buf0 - 4 - buffer_start;
      dmbSize[sourceID][currentChamber] = 4;

#ifdef LOCAL_UNPACK
      // Print DMB_ID from DMB Header
      COUT << "Crate=" << setw(3) << setfill('0') << ((buf0[1] >> 4) & 0x00FF) << " DMB=" << setw(2) << setfill('0')
           << (buf0[1] & 0x000F) << " ";
      // Print ALCT_DAV and TMB_DAV from DMB Header
      //COUT<<setw(1)<<((buf0[0]&0x0020)>>5)<<" "<<((buf0[0]&0x0040)>>6)<<" ";
      COUT << setw(1) << ((buf0[0] & 0x0200) >> 9) << " " << ((buf0[0] & 0x0800) >> 11)
           << " ";  //change of format 16.09.05
      // Print CFEB_DAV from DMB Header
      COUT << setw(1) << ((buf0[0] & 0x0010) >> 4) << ((buf0[0] & 0x0008) >> 3) << ((buf0[0] & 0x0004) >> 2)
           << ((buf0[0] & 0x0002) >> 1) << (buf0[0] & 0x0001);
      // Print DMB Header Tag
      COUT << " {";
#endif

      if (fFormat2013)  
      {
        // Set variables if we are waiting ALCT, TMB and CFEB records to be present in event
        DAV_ALCT = (buf0[0] & 0x0800) >> 11;
        DAV_TMB = (buf0[0] & 0x0400) >> 10;
        DAV_CFEB = 0;
        if (buf0[0] & 0x0001)
          ++DAV_CFEB;
        if (buf0[0] & 0x0002)
          ++DAV_CFEB;
        if (buf0[0] & 0x0004)
          ++DAV_CFEB;
        if (buf0[0] & 0x0008)
          ++DAV_CFEB;
        if (buf0[0] & 0x0010)
          ++DAV_CFEB;
        if (buf0[0] & 0x0020)
          ++DAV_CFEB;
        if (buf0[0] & 0x0040)
          ++DAV_CFEB;
        if (DAV_ALCT)
          bCHAMB_PAYLOAD[currentChamber] |= 0x20;
        if (DAV_TMB)
          bCHAMB_PAYLOAD[currentChamber] |= 0x40;

        bCHAMB_PAYLOAD[currentChamber] |= (buf0[0] & 0x007f) << 7;           
        bCHAMB_PAYLOAD[currentChamber] |= (buf_1[2] & 0x001f);               
        bCHAMB_PAYLOAD[currentChamber] |= ((buf_1[2] >> 5) & 0x0003) << 14;  
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0080) << 14;           

      } else  
      {
        // Set variables if we are waiting ALCT, TMB and CFEB records to be present in event
        DAV_ALCT = (buf0[0] & 0x0200) >> 9;
        DAV_TMB = (buf0[0] & 0x0800) >> 11;
        DAV_CFEB = 0;
        if (buf0[0] & 0x0001)
          ++DAV_CFEB;
        if (buf0[0] & 0x0002)
          ++DAV_CFEB;
        if (buf0[0] & 0x0004)
          ++DAV_CFEB;
        if (buf0[0] & 0x0008)
          ++DAV_CFEB;
        if (buf0[0] & 0x0010)
          ++DAV_CFEB;
        if (DAV_ALCT)
          bCHAMB_PAYLOAD[currentChamber] |= 0x20;
        if (DAV_TMB)
          bCHAMB_PAYLOAD[currentChamber] |= 0x40;
        bCHAMB_PAYLOAD[currentChamber] |= (buf0[0] & 0x001f) << 7;
        bCHAMB_PAYLOAD[currentChamber] |= ((buf_1[2] >> 5) & 0x001f);
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0040) << 15;
      }
    }

    // New ALCT data format:
    if ((buf0[0] == 0xDB0A && (buf0[1] & 0xF000) == 0xD000 && (buf0[2] & 0xF000) == 0xD000 &&
         (buf0[3] & 0xF000) == 0xD000) &&
        ((buf_1[0] & 0xF000) == 0xA000 && (buf_1[1] & 0xF000) == 0xA000 && (buf_1[2] & 0xF000) == 0xA000 &&
         (buf_1[3] & 0xF000) == 0xA000)) {
      fALCT_Header = true;
      fALCT_Format2007 = true;
      ALCT_CRC = 0;
      ALCT_WordsSinceLastHeader = 4;
      ALCT_WordsSinceLastHeaderZeroSuppressed = 4;

      // Calculate expected number of ALCT words
      ALCT_WordsExpected = 12;  // header and trailer always exists

      //  Aauxilary variables
      //   number of wire groups per layer:
      int nWGs_per_layer = ((buf1[2] & 0x0007) + 1) * 16;
      // words in the layer
      nWG_round_up = int(nWGs_per_layer / 12) + (nWGs_per_layer % 3 ? 1 : 0);
      //   configuration present:
      bool config_present = buf1[0] & 0x4000;
      //   lct overflow:
      bool lct_overflow = buf1[0] & 0x2000;
      //   raw overflow:
      bool raw_overflow = buf1[0] & 0x1000;
      //   l1a_window:
      int lct_tbins = (buf1[3] & 0x01E0) >> 5;
      //   fifo_tbins:
      int raw_tbins = (buf1[3] & 0x001F);

      ALCT_ZSE = (buf1[1] & 0x1000) >> 12;

      if (ALCT_ZSE) {
        for (int g = 0; g < 4; g++) {
          if (buf1[g] == 0x1000)
            ALCT_WordsSinceLastHeader -= (nWG_round_up - 1);
        }
      }
#ifdef LOCAL_UNPACK
//        COUT << " Number of Wire Groups: " << nWG_round_up << std::endl;
//        COUT << " raw_tbins: " << std::dec << raw_tbins << std::endl;
//        COUT << " LCT Tbins: " << lct_tbins << std::endl;
#endif

      //  Data block sizes:
      //   3 words of Vertex ID register + 5 words of config. register bits:
      int config_size = (config_present ? 3 + 5 : 0);
      //   collision mask register:
      int colreg_size = (config_present ? nWGs_per_layer / 4 : 0);
      //   hot channel mask:
      int hot_ch_size = (config_present ? nWG_round_up * 6 : 0);
      //   ALCT0,1 (best tracks):
      int alct_0_1_size = (!lct_overflow ? 2 * lct_tbins : 0);
      //   raw hit dump size:
      int raw_hit_dump_size = (!raw_overflow ? nWG_round_up * 6 * raw_tbins : 0);

#ifdef LOCAL_UNPACK
      // COUT << " Raw Hit Dump: " << std::dec << raw_hit_dump_size << std::endl;
#endif

      ALCT_WordsExpected += config_size + colreg_size + hot_ch_size + alct_0_1_size + raw_hit_dump_size;

#ifdef LOCAL_UNPACK
      COUT << " <A";
#endif

    } else {
      // Old ALCT data format

      // == ALCT Header found right after DMB Header
      //   (check for all currently reserved/fixed bits in ALCT first 4 words)
      // if( ( (buf0 [0]&0xF800)==0x6000 && (buf0 [1]&0xFF80)==0x0080 && (buf0 [2]&0xF000)==0x0000 && (buf0 [3]&0xc000)==0x0000 )
      if (((buf0[0] & 0xF800) == 0x6000 && (buf0[1] & 0x8F80) == 0x0080 && (buf0[2] & 0x8000) == 0x0000 &&
           (buf0[3] & 0xc000) == 0x0000) &&
          ((buf_1[0] & 0xF000) == 0xA000 && (buf_1[1] & 0xF000) == 0xA000 && (buf_1[2] & 0xF000) == 0xA000 &&
           (buf_1[3] & 0xF000) == 0xA000)) {
        fALCT_Header = true;
        fALCT_Format2007 = false;
        ALCT_CRC = 0;
        ALCT_WordsSinceLastHeader = 4;

        // Calculate expected number of ALCT words
        if ((buf0[3] & 0x0003) == 0) {
          ALCT_WordsExpected = 12;  // Short Readout
        }

        if ((buf0[1] & 0x0003) == 1)  // Full Readout
        {
          ALCT_WordsExpected = ((buf0[1] & 0x007c) >> 2) *
                                   (((buf0[3] & 0x0001)) + ((buf0[3] & 0x0002) >> 1) + ((buf0[3] & 0x0004) >> 2) +
                                    ((buf0[3] & 0x0008) >> 3) + ((buf0[3] & 0x0010) >> 4) + ((buf0[3] & 0x0020) >> 5) +
                                    ((buf0[3] & 0x0040) >> 6)) *
                                   12 +
                               12;
        }
#ifdef LOCAL_UNPACK
        COUT << " <A";
#endif
      }
    }
#ifdef LOCAL_UNPACK
    //COUT << " ALCT Word Expected: " << ALCT_WordsExpected << std::endl;
#endif

    if ((buf0[0] & 0xFFFF) == 0xDB0C) {
      // =VB= Handles one of the OTMB corrupted data cases.
      //      Double TMB data block with 2nd TMB Header is found.
      //      Set missing TMB Trailer error.
      if (fTMB_Header) {
        fERROR[12] = true;  // TMB Trailer is missing
        bERROR |= 0x1000;
        fCHAMB_ERR[12].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1000;
      }

      fTMB_Header = true;
      fTMB_Format2007 = true;
      TMB_CRC = 0;
      TMB_WordsSinceLastHeader = 4;
      TMB_WordsExpected = 0;

      // Calculate expected number of TMB words (whether RPC included will be known later)
      if ((buf1[1] & 0x3000) == 0x3000) {
        TMB_WordsExpected = 12;  // Short Header Only
      }
      if ((buf1[1] & 0x3000) == 0x0000) {
        TMB_WordsExpected = 48;  // Long Header Only
      }

#ifdef LOCAL_UNPACK
      COUT << " <T";
#endif
    } else {
      // == TMB Header found right after DMB Header or right after ALCT Trailer
      if ((buf0[0] & 0xFFFF) == 0x6B0C && (((buf_1[0] & 0xF000) == 0xA000 && (buf_1[1] & 0xF000) == 0xA000 &&
                                            (buf_1[2] & 0xF000) == 0xA000 && (buf_1[3] & 0xF000) == 0xA000) ||
                                           ((buf_1[0] & 0x0800) == 0x0000 && (buf_1[1] & 0xF800) == 0xD000 &&
                                            (buf_1[2] & 0xFFFF) == 0xDE0D && (buf_1[3] & 0xF000) == 0xD000)
                                           // should've been (buf_1[0]&0xF800)==0xD000 - see comments for sERROR[11]
                                           )) {
        //if( (buf_1[2]&0xFFFF)==0xDE0D && (buf_1[3]&0xFC00)!=0xD000 && summer2004 ) ???

        fTMB_Header = true;
        fTMB_Format2007 = false;
        TMB_CRC = 0;
        TMB_WordsSinceLastHeader = 4;

        // Calculate expected number of TMB words (whether RPC included will be known later)
        if ((buf0[1] & 0x3000) == 0x3000) {
          TMB_WordsExpected = 8;  // Short Header Only
        }
        if ((buf0[1] & 0x3000) == 0x0000) {
          TMB_WordsExpected = 32;  // Long Header Only
        }

        if ((buf0[1] & 0x3000) == 0x1000) {
          // Full Readout   = 28 + (#Tbins * #CFEBs * 6)
          TMB_Tbins = (buf0[1] & 0x001F);
          TMB_WordsExpected = 28 + TMB_Tbins * ((buf1[0] & 0x00E0) >> 5) * 6;
        }
#ifdef LOCAL_UNPACK
        COUT << " <T";
#endif
      }
    }
    // New TMB format => very long header Find Firmware revision
    if (fTMB_Header && fTMB_Format2007 && TMB_WordsSinceLastHeader == 8) {
      TMB_Firmware_Revision = buf0[3];
    }

    // New TMB format => very long header
    if (fTMB_Header && fTMB_Format2007 && TMB_WordsSinceLastHeader == 20) {
      // Full Readout   = 44 + (#Tbins * #CFEBs * 6)
      TMB_Tbins = (buf0[3] & 0x00F8) >> 3;
      TMB_WordsExpected = 44 + TMB_Tbins * (buf0[3] & 0x0007) * 6;
    }

    // == ALCT Trailer found
    if (
        // New ALCT data format:
        (buf0[0] == 0xDE0D && (buf0[1] & 0xF800) == 0xD000 && (buf0[2] & 0xF800) == 0xD000 &&
         (buf0[3] & 0xF000) == 0xD000 && fALCT_Format2007) ||
        // Old ALCT data format; last check is added to avoid confusion with new TMB header (may not be needed):
        ((buf0[0] & 0x0800) == 0x0000 && (buf0[1] & 0xF800) == 0xD000 && (buf0[2] & 0xFFFF) == 0xDE0D &&
         (buf0[3] & 0xF000) == 0xD000 && !fALCT_Format2007 && !(fTMB_Header && fTMB_Format2007))) {
      // should've been (buf0[0]&0xF800)==0xD000 - see comments for sERROR[11]

      // Second ALCT -> Lost both previous DMB Trailer and current DMB Header
      if (!uniqueALCT)
        currentChamber = -1;
      // Check if this ALCT record have to exist according to DMB Header
      if (DAV_ALCT)
        DAV_ALCT = false;
      else
        DAV_ALCT = true;

      if (!fALCT_Header) {
        fERROR[8] = true;
        bERROR |= 0x100;
        fCHAMB_ERR[8].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x100;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }  // ALCT Header is missing

      if (!fALCT_Format2007 && (buf0[0] & 0xF800) != 0xD000) {
        fERROR[11] = true;
        bERROR |= 0x800;
        fCHAMB_ERR[11].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x800;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }  // some bits in 1st D-Trailer are lost

#ifdef LOCAL_UNPACK
      /*
                COUT << " ALCT Word Since Last Header: " << ALCT_WordsSinceLastHeader << std::endl;
                COUT << " ALCT Word Expected: " << ALCT_WordsExpected << std::endl;
                COUT << " ALCT Word Since Last Header Zero Supressed: " << ALCT_WordsSinceLastHeaderZeroSuppressed << std::endl;
          */
#endif
      if (checkCrcALCT) {
        uint32_t crc = (fALCT_Format2007 ? buf0[1] : buf0[0]) & 0x7ff;
        crc |= ((uint32_t)((fALCT_Format2007 ? buf0[2] : buf0[1]) & 0x7ff)) << 11;
        if (ALCT_CRC != crc) {
          fERROR[10] = true;
          bERROR |= 0x400;
          fCHAMB_ERR[10].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x400;
          fCHAMB_ERR[0].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x1;
        }
      }

      fALCT_Header = false;
      uniqueALCT = false;
      CFEB_CRC = 0;
      //ALCT_WordCount = (buf0[3]&0x03FF);
      ALCT_WordCount = (buf0[3] & 0x07FF);
      //ALCT_WordCount = (buf0[3]&0x0FFF);
      CFEB_SampleWordCount = 0;
#ifdef LOCAL_UNPACK
      COUT << "A> ";
#endif
    }

    // Calculation of CRC sum ( algorithm is written by Madorsky )
    if (fALCT_Header && checkCrcALCT) {
      for (uint16_t j = 0, w = 0; j < 4; ++j) {
        w = buf0[j] & (fALCT_Format2007 ? 0xffff : 0x7fff);
        for (uint32_t i = 15, t = 0, ncrc = 0; i < 16; i--) {
          t = ((w >> i) & 1) ^ ((ALCT_CRC >> 21) & 1);
          ncrc = (ALCT_CRC << 1) & 0x3ffffc;
          ncrc |= (t ^ (ALCT_CRC & 1)) << 1;
          ncrc |= t;
          ALCT_CRC = ncrc;
        }
      }
    }

    // == Find Correction for TMB_WordsExpected due to RPC raw hits,
    //    should it turn out to be the new RPC-aware format
    if (fTMB_Header && ((buf0[2] & 0xFFFF) == 0x6E0B)) {
      if (fTMB_Format2007) {
        /* Checks for TMB2007 firmware revisions ranges to detect data format
               ---------------- 
               * rev. code <0x4000 - TMB/OTMB firmware with changed firmware revision format
               *     4 bits [12:9] = Data Format Version for the unpacker (can include TMB vs. OTMB etc here)
               *     4 bits [8:5]  = Major Version (major features which breaks compatibility, requires changes to other board firmware) 
               *     5 bits [4:0]  = Minor version  (minor features, internal fixes, bug fixes, etc). 
               * ---------------- 
               * rev.0x50c3 - first revision with changed format 
               * rev.0x42D5 - oldest known from 06/21/2007
               * There is 4-bits year value rollover in revision number (0 in 2016)
               */
        if ((TMB_Firmware_Revision >= 0x50c3) || (TMB_Firmware_Revision < 0x42D5)) {
          bool isGEMfirmware = false;
          if ((TMB_Firmware_Revision < 0x4000) &&
              (TMB_Firmware_Revision > 0x0)) { /* New TMB firmware revision format */
            /* Data Format Version codes 
             * 0=TMB
             * 1=OTMB standard 
             * 2=OTMB+CCLUT+HMT Run3 data format
             * 3=OTMB+CCLUT+HMT+GEM Run3 data format
             */
            if (((TMB_Firmware_Revision >> 9) & 0x3) == 0x3)
              isGEMfirmware = true;
          }

          if (isGEMfirmware) {
            uint16_t Enabled_GEMs = 0;
            /* GEM output format, based on the number of enabled fibers, not yet implemented in the firmware */
            /*
            for (int i = 0; i < 4; i++)
              Enabled_GEMs += (buf_1[0] >> i) & 0x1;
             */
            Enabled_GEMs = 4;  // Currently always assume that all 4 fibers are enabled
            // Number of enabled GEM Fibers * nTimebins
            TMB_WordsGEM = Enabled_GEMs * ((buf_1[0] >> 5) & 0x1F) * 4;
            TMB_WordsGEM += 2;  // add header/trailer for block of GEM raw hits
          }
          // On/off * nRPCs * nTimebins * 2 words/RPC/bin
          TMB_WordsRPC = ((buf_1[0] & 0x0010) >> 4) * ((buf_1[0] & 0x000c) >> 2) * ((buf_1[0] >> 5) & 0x1F) * 2;
        } else  // original TMB2007 data format (may not work since TMB_Tbins != RPC_Tbins)
        {
          TMB_WordsRPC = ((buf_1[0] & 0x0040) >> 6) * ((buf_1[0] & 0x0030) >> 4) * TMB_Tbins * 2;
        }
      } else  // Old format 2006
      {
        TMB_WordsRPC = ((buf_1[2] & 0x0040) >> 6) * ((buf_1[2] & 0x0030) >> 4) * TMB_Tbins * 2;
      }
      TMB_WordsRPC += 2;  // add header/trailer for block of RPC raw hits
    }

    // Check for RPC data
    if (fTMB_Header && (scanbuf(buf0, 4, 0x6B04) >= 0)) {
      fTMB_RPC_Start = true;
    }

    // Check for GEM data
    if (fTMB_Header && (scanbuf(buf0, 4, 0x6C04) >= 0)) {
      fTMB_GEM_Start = true;
    }

    // Check for Mini-Scope data
    if (fTMB_Header && (scanbuf(buf0, 4, 0x6B07) >= 0)) {
      fTMB_MiniScope_Start = true;
    }

    // Check for Blocked CFEBs data
    if (fTMB_Header && (scanbuf(buf0, 4, 0x6BCB) >= 0)) {
      fTMB_BlockedCFEBs_Start = true;
    }

    // Check for end of RPC data
    if (fTMB_Header && fTMB_RPC_Start && (scanbuf(buf0, 4, 0x6E04) >= 0)) {
      fTMB_RPC = true;
    }

    // Check for end of GEM data
    if (fTMB_Header && fTMB_GEM_Start && (scanbuf(buf0, 4, 0x6D04) >= 0)) {
      fTMB_GEM = true;
    }

    // Check for end of Mini-Scope data
    if (fTMB_Header && fTMB_MiniScope_Start && (scanbuf(buf0, 4, 0x6E07) >= 0)) {
      fTMB_MiniScope = true;
    }

    // Check for end of Blocked CFEBs data
    if (fTMB_Header && fTMB_BlockedCFEBs_Start && (scanbuf(buf0, 4, 0x6ECB) >= 0)) {
      fTMB_BlockedCFEBs = true;
    }

    // == TMB Trailer found
    if (
        // Old TMB data format; last condition in needed not to confuse if with new ALCT data header
        ((buf0[0] & 0xF000) == 0xD000 && (buf0[1] & 0xF000) == 0xD000 && (buf0[2] & 0xFFFF) == 0xDE0F &&
         (buf0[3] & 0xF000) == 0xD000 && !fTMB_Format2007 && !(fALCT_Header && fALCT_Format2007)) ||
        // New TMB data format
        (buf0[0] == 0xDE0F && (buf0[1] & 0xF000) == 0xD000 && (buf0[2] & 0xF000) == 0xD000 &&
         (buf0[3] & 0xF000) == 0xD000 && fTMB_Format2007)) {
      // Second TMB -> Lost both previous DMB Trailer and current DMB Header
      if (!uniqueTMB)
        currentChamber = -1;
      // Check if this TMB record have to exist according to DMB Header
      if (DAV_TMB)
        DAV_TMB = false;
      else
        DAV_TMB = true;

      if (!fTMB_Header) {
        fERROR[13] = true;
        bERROR |= 0x2000;
        fCHAMB_ERR[13].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x2000;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }  // TMB Header is missing

      // Check calculated CRC sum against reported
      if (checkCrcTMB) {
        uint32_t crc = (fTMB_Format2007 ? buf0[1] & 0x7ff : buf0[0] & 0x7ff);
        crc |= ((uint32_t)((fTMB_Format2007 ? buf0[2] & 0x7ff : buf0[1] & 0x7ff))) << 11;
        if (TMB_CRC != crc) {
          fERROR[15] = true;
          bERROR |= 0x8000;
          fCHAMB_ERR[15].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x8000;
          fCHAMB_ERR[0].insert(currentChamber);
          bCHAMB_ERR[currentChamber] |= 0x1;
        }
      }

      fTMB_Header = false;
      uniqueTMB = false;
      CFEB_CRC = 0;
      TMB_WordCount = (buf0[3] & 0x07FF);

      // == Correct TMB_WordsExpected
      //    1) for 2 optional 0x2AAA and 0x5555 Words in the Trailer
      //        2) for extra 4 frames in the new TMB trailer and
      //         for RPC raw hit data, if present
      //
      // If the scope data was enabled in readout, scope data markers (0x6B05
      // and 0x6E05) appear before 0x6E0C, and the optional 0x2AAA and 0x5555
      // trailer words are suppressed.  So far, we only have data with the
      // empty scope content, so more corrections will be needed once
      // non-empty scope data is available. -SV, 5 Nov 2008.
      //
      // If word count is not multiple of 4, add 2 optional words and
      // 4 trailer words.

      int pos = scanbuf(buf_1, 4, 0x6E0C);
      if (pos == 1) {
        TMB_WordsExpected += 6;
      }
      // If word count is multiple of 4, add 4 trailer words.
      else if (pos == 3) {
        TMB_WordsExpected += 4;
      }

      // Correct expected wordcount by RPC data size
      if (fTMB_RPC)
        TMB_WordsExpected += TMB_WordsRPC;

      // Correct expected wordcount by GEM data size
      if (fTMB_GEM)
        TMB_WordsExpected += TMB_WordsGEM;

      // Correct expected wordcount by MiniScope data size (22 words + 2 signature words)
      if (fTMB_MiniScope)
        TMB_WordsExpected += 24;

      // Correct expected wordcount by BlockedCFEBs data size (20 words + 2 signature words)
      if (fTMB_BlockedCFEBs)
        TMB_WordsExpected += 22;

      CFEB_SampleWordCount = 0;
#ifdef LOCAL_UNPACK
      COUT << "T> ";
#endif
    }

    if (fTMB_Header && checkCrcTMB) {
      for (uint16_t j = 0, w = 0; j < 4; ++j) {
        w = buf0[j] & (fTMB_Format2007 ? 0xffff : 0x7fff);
        for (uint32_t i = 15, t = 0, ncrc = 0; i < 16; i--) {
          t = ((w >> i) & 1) ^ ((TMB_CRC >> 21) & 1);
          ncrc = (TMB_CRC << 1) & 0x3ffffc;
          ncrc |= (t ^ (TMB_CRC & 1)) << 1;
          ncrc |= t;
          TMB_CRC = ncrc;
        }
      }
    }

    // == CFEB Sample Trailer found

    if (!fTMB_Header && ((buf0[1] & 0xF000) == 0x7000) && ((buf0[2] & 0xF000) == 0x7000) &&
        ((buf0[1] != 0x7FFF) || (buf0[2] != 0x7FFF)) &&
        (((buf0[3] & 0xFFFF) == 0x7FFF) ||                                 // old format
         ((buf0[3] & buf0[0]) == 0x0000 && (buf0[3] + buf0[0]) == 0x7FFF)  // 2007 format
         )) {
#ifdef LOCAL_UNPACK
      if ((CFEB_SampleCount % 8) == 0) {
        COUT << " <";
      }
      if (CFEB_SampleWordCount == 100) {
        COUT << "+";
      }
#endif
      if (CFEB_SampleWordCount != 100) {
#ifdef LOCAL_UNPACK
        COUT << "-";
#endif

        fERROR[16] = true;
        bERROR |= 0x10000;
        fCHAMB_ERR[16].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x10000;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }

      ++CFEB_SampleCount;

      if ((CFEB_SampleCount % 8) == 0) {
#ifdef LOCAL_UNPACK
        COUT << ">";
#endif
        CFEB_BSampleCount = 0;
        // Count CFEBs
        DAV_CFEB--;
      }

      // Check calculated CRC sum against reported
      if (checkCrcCFEB && CFEB_CRC != buf0[0]) {
        fERROR[18] = true;
        bERROR |= 0x40000;
        fCHAMB_ERR[18].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x40000;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
      }

      CFEB_CRC = 0;
      CFEB_SampleWordCount = 0;
    }

    // == CFEB B-word found
    if (!fTMB_Header && (buf0[0] & 0xF000) == 0xB000 && (buf0[1] & 0xF000) == 0xB000 && (buf0[2] & 0xF000) == 0xB000 &&
        (buf0[3] & 0xF000) == 0xB000) {
      bCHAMB_STATUS[currentChamber] |= 0x400000;

#ifdef LOCAL_UNPACK
      if ((CFEB_SampleCount % 8) == 0) {
        COUT << " <";
      }
      COUT << "B";
#endif

      ++CFEB_SampleCount;
      ++CFEB_BSampleCount;

      if ((CFEB_SampleCount % 8) == 0) {
#ifdef LOCAL_UNPACK
        COUT << ">";
#endif
        CFEB_BSampleCount = 0;
        DAV_CFEB--;
      }

      CFEB_SampleWordCount = 0;
    }

    // == If it is neither ALCT record nor TMB - probably it is CFEB record and we try to count CRC sum.
    // It very few words of CFEB occasionaly will be misinterpreted as ALCT or TMB header the result
    // for the CRC sum will be wrong, but other errors of Trailers counting will appear as well
    if (checkCrcCFEB && fDMB_Header && !fTMB_Header && !fALCT_Header && CFEB_SampleWordCount)
      for (int pos = 0; pos < 4; ++pos)
        CFEB_CRC = (buf0[pos] & 0x1fff) ^ ((buf0[pos] & 0x1fff) << 1) ^
                   (((CFEB_CRC & 0x7ffc) >> 2) | ((0x0003 & CFEB_CRC) << 13)) ^ ((CFEB_CRC & 0x7ffc) >> 1);

    // == DMB F-Trailer found
    if ((buf0[0] & 0xF000) == 0xF000 && (buf0[1] & 0xF000) == 0xF000 && (buf0[2] & 0xF000) == 0xF000 &&
        (buf0[3] & 0xF000) == 0xF000) {
      if (!fDMB_Header) {
        currentChamber = buf0[3] & 0x0FFF;
        fERROR[6] = true;
        bERROR |= 0x40;
        fCHAMB_ERR[6].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x40;
        nDMBs++;
        // Set variables if we are waiting ALCT, TMB and CFEB records to be present in event
        if (buf0[0] & 0x0400)
          bCHAMB_PAYLOAD[currentChamber] |= 0x20;
        if (buf0[0] & 0x0800)
          bCHAMB_PAYLOAD[currentChamber] |= 0x40;
        bCHAMB_PAYLOAD[currentChamber] |= (buf0[0] & 0x001f) << 7;
        bCHAMB_PAYLOAD[currentChamber] |= ((buf0[0] >> 5) & 0x1f);

      }  // DMB Header is missing
      fDMB_Header = false;
      fDMB_Trailer = true;
      uniqueALCT = true;
      uniqueTMB = true;

      dmbSize[sourceID][currentChamber] = buf0 - dmbBuffers[sourceID][currentChamber];

      // Finally check if DAVs were correct
      checkDAVs();

      // If F-Trailer is lost then do necessary work here
      if ((buf1[0] & 0xF000) != 0xE000 || (buf1[1] & 0xF000) != 0xE000 || (buf1[2] & 0xF000) != 0xE000 ||
          (buf1[3] & 0xF000) != 0xE000) {
        for (int err = 1; err < nERRORS; ++err)
          if (fCHAMB_ERR[err].find(currentChamber) != fCHAMB_ERR[err].end()) {
            fCHAMB_ERR[0].insert(currentChamber);
            bCHAMB_ERR[currentChamber] |= 0x1;
          }
        // Reset chamber id
        currentChamber = -1;
        /*
                for(int err=0; err<nERRORS; err++)
                if( fCHAMB_ERR[err].find(-1) != fCHAMB_ERR[err].end() )
                fCHAMB_ERR[err].erase(-1);
                bCHAMB_ERR[-1] = 0;
                bCHAMB_WRN[-1] = 0;
              */
      }
#ifdef LOCAL_UNPACK
      // Print DMB F-Trailer marker
      COUT << " }";
#endif
    }

    // == DMB E-Trailer found
    if ((buf0[0] & 0xF000) == 0xE000 && (buf0[1] & 0xF000) == 0xE000 && (buf0[2] & 0xF000) == 0xE000 &&
        (buf0[3] & 0xF000) == 0xE000) {
      if (!fDMB_Header && !fDMB_Trailer)
        nDMBs++;  // both DMB Header and DMB F-Trailer were missing

      if (fFormat2013)  
      {
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0800) >> 11;  
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0400) >> 9;   
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0080) << 8;   

        if (fDMB_Trailer)  // F-Trailer exists
        {
          bCHAMB_STATUS[currentChamber] |= (buf_1[2] & 0x0E00) >> 7;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0003) << 3;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x000C) << 21;  
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0800) >> 4;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[2] & 0x0100);        
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x01f0) << 5;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0600) << 16;  
          bCHAMB_STATUS[currentChamber] |= (buf_1[0] & 0x0800) << 3;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[1] & 0x001f) << 16;  
          bCHAMB_STATUS[currentChamber] |= (buf_1[1] & 0x0060) << 21;  
        }

      } else {
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0800) >> 11;  
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x0400) >> 9;   
        bCHAMB_STATUS[currentChamber] |= (buf0[0] & 0x03E0) >> 3;   

        if (fDMB_Trailer)  // F-Trailer exists
        {
          bCHAMB_STATUS[currentChamber] |= (buf_1[2] & 0x0002) << 6;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[2] & 0x0001) << 8;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x001f) << 9;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0040) << 8;   
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0020) << 10;  
          bCHAMB_STATUS[currentChamber] |= (buf_1[3] & 0x0f80) << 9;   
        }
      }
      fDMB_Header = false;

      // If chamber id is unknown it is time to find it out
      if (currentChamber == -1) {
        currentChamber = buf0[1] & 0x0FFF;
        for (int err = 0; err < nERRORS; ++err)
          if (fCHAMB_ERR[err].find(-1) != fCHAMB_ERR[err].end()) {
            fCHAMB_ERR[err].insert(currentChamber);
            fCHAMB_ERR[err].erase(-1);
          }
        bCHAMB_STATUS[currentChamber] = bCHAMB_STATUS[-1];
        bCHAMB_STATUS[-1] = 0;
        bCHAMB_ERR[currentChamber] = bCHAMB_ERR[-1];
        bCHAMB_ERR[-1] = 0;
        bCHAMB_WRN[currentChamber] = bCHAMB_WRN[-1];
        bCHAMB_WRN[-1] = 0;
      }
      ++cntCHAMB_Trailers[buf0[1] & 0x0FFF];

      dmbSize[sourceID][currentChamber] = buf0 - dmbBuffers[sourceID][currentChamber];

      // Lost DMB F-Trailer before
      if (!fDMB_Trailer) {
        fERROR[6] = true;
        bERROR |= 0x40;
        fCHAMB_ERR[6].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x40;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x1;
        // Check if DAVs were correct here
        checkDAVs();
      }
      fDMB_Trailer = false;

#ifdef LOCAL_UNPACK
      // Print DMB E-Trailer marker
      COUT << " DMB=" << (buf0[1] & 0x000F);
      COUT << "; " << ALCT_WordsSinceLastHeader << "-" << ALCT_WordCount << "-" << ALCT_WordsExpected << "      "
           << TMB_WordsSinceLastHeader << "-" << TMB_WordCount << "-" << TMB_WordsExpected << endl;
#endif

      checkTriggerHeadersAndTrailers();

      //
      for (int err = 0; err < nERRORS; ++err)
        if (fCHAMB_ERR[err].find(-1) != fCHAMB_ERR[err].end()) {
          fCHAMB_ERR[err].erase(-1);
          fCHAMB_ERR[err].insert(-2);
        }
      bCHAMB_STATUS[-2] |= bCHAMB_STATUS[-1];
      bCHAMB_STATUS[-1] = 0;
      bCHAMB_ERR[-2] |= bCHAMB_ERR[-1];
      bCHAMB_ERR[-1] = 0;
      bCHAMB_WRN[-2] |= bCHAMB_WRN[-1];
      bCHAMB_WRN[-1] = 0;

      if (currentChamber != -1)
        for (int err = 1; err < nERRORS; ++err)
          if (fCHAMB_ERR[err].find(currentChamber) != fCHAMB_ERR[err].end()) {
            fCHAMB_ERR[0].insert(currentChamber);
            bCHAMB_ERR[currentChamber] |= 0x1;
          }

      currentChamber = -1;
#ifdef LOCAL_UNPACK
      /*
                // Print DMB E-Trailer marker
                COUT<<" DMB="<<(buf0[1]&0x000F);
                COUT << "; "
               << ALCT_WordsSinceLastHeader << "-"
               << ALCT_WordCount << "-"
               << ALCT_WordsExpected
               << "      "
               << TMB_WordsSinceLastHeader << "-"
               << TMB_WordCount << "-"
               << TMB_WordsExpected
               << endl;
          */
#endif
    }

    // == DDU Trailer found
    if (buf0[0] == 0x8000 && buf0[1] == 0x8000 && buf0[2] == 0xFFFF && buf0[3] == 0x8000) {
      checkDAVs();

      checkTriggerHeadersAndTrailers();


      if (DDU_WordsSinceLastHeader > 3 && !nDMBs) {
        fERROR[28] = true;
        bERROR |= 0x10000000;
        ;
      }

      if (fDDU_Trailer) {
        fERROR[2] = true;
        bERROR |= 0x4;
      }  // DDU Header is missing
      fDDU_Trailer = true;
      fDDU_Header = false;

      if (fDMB_Header || fDMB_Trailer) {
#ifdef LOCAL_UNPACK
        COUT << " Ex-Err: DMB (Header, Trailer) " << std::endl;
#endif
        fERROR[5] = true;
        bERROR |= 0x20;
        fCHAMB_ERR[5].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x20;
        fCHAMB_ERR[0].insert(currentChamber);
        bCHAMB_ERR[currentChamber] |= 0x20;
      }  // DMB Trailer is missing
      fDMB_Header = false;
      fDMB_Trailer = false;

      currentChamber = -1;

      for (int err = 0; err < nERRORS; ++err)
        if (fCHAMB_ERR[err].find(-1) != fCHAMB_ERR[err].end()) {
          fCHAMB_ERR[err].erase(-1);
          fCHAMB_ERR[err].insert(-2);
        }
      bCHAMB_STATUS[-2] |= bCHAMB_STATUS[-1];
      bCHAMB_STATUS[-1] = 0;
      bCHAMB_ERR[-2] |= bCHAMB_ERR[-1];
      bCHAMB_ERR[-1] = 0;
      bCHAMB_WRN[-2] |= bCHAMB_WRN[-1];
      bCHAMB_WRN[-1] = 0;

      for (int err = 1; err < nERRORS; ++err)
        if (fCHAMB_ERR[err].find(-2) != fCHAMB_ERR[err].end()) {
          fCHAMB_ERR[0].insert(-2);
          bCHAMB_ERR[-2] |= 0x1;
        }

      dduSize[sourceID] = buf0 - dduBuffers[sourceID];

      ++cntDDU_Trailers;  // Increment DDUTrailer counter

      // == Combining 2 words into 24bit value
      DDU_WordCount = buf2[2] | ((buf2[3] & 0xFF) << 16);

      if ((DDU_WordsSinceLastHeader + 4) != DDU_WordCount) {
        fERROR[4] = true;
        bERROR |= 0x10;
      }

      if (DMB_Active != nDMBs) {
        fERROR[24] = true;
        bERROR |= 0x1000000;
      }

#ifdef LOCAL_UNPACK
      COUT << "DDU Trailer Occurrence " << cntDDU_Trailers << endl;
      COUT << "----------------------------------------------------------" << endl;
      COUT << "DDU 64-bit words = Actual - DDUcounted =" << DDU_WordsSinceLastHeader + 4 << "-" << DDU_WordCount
           << endl;
#endif

      // increment statistics Errors and Warnings (i=0 case is handled in DDU Header)
      for (int err = 1; err < nERRORS; ++err) {
        if (fERROR[err]) {
          fERROR[0] = true;
          bERROR |= 0x1;
#ifdef LOCAL_UNPACK
          CERR << "\nDDU Header Occurrence = " << cntDDU_Headers;
          CERR << "  ERROR " << err << "  " << sERROR[err] << endl;
#endif
        }
      }

#ifdef LOCAL_UNPACK
      for (int wrn = 1; wrn < nWARNINGS; ++wrn) {
        if (fWARNING[wrn]) {
          COUT << "\nDDU Header Occurrence = " << cntDDU_Headers;
          COUT << "  WARNING " << wrn << "  " << sWARNING[wrn] << endl;
        }
      }
#endif

      bDDU_ERR[sourceID] |= bERROR;
      bDDU_WRN[sourceID] |= bWARNING;
      sync_stats();

      DDU_WordsSinceLastHeader = 0;
      DDU_WordsSinceLastTrailer = 0;
      if (modeDDUonly) {
        buffer += 4;
        buf_1 = &(tmpbuf[0]);  // Just for safety
        buf0 = &(tmpbuf[4]);   // Just for safety
        buf1 = &(tmpbuf[8]);   // Just for safety
        buf2 = &(tmpbuf[12]);  // Just for safety
        bzero(tmpbuf, sizeof(uint16_t) * 16);
        return length - 4;
      }
    }

    if (!modeDDUonly) {
      // DCC Trailer 1 && DCC Trailer 2
      // =VB= Added support for Sep. 2008 CMS DAQ DCC format
      // =VB= 04.18.09 Removed (buf2[0]&0x0003) == 0x3 check for old DCC format to satisfy older format of simulated data
      if ((buf1[3] & 0xFF00) == 0xEF00 &&
          (((buf2[3] & 0xFF00) == 0xAF00) || ((buf2[3] & 0xFF00) == 0xA000 && (buf2[0] & 0x0003) == 0x0))) {
        // =VB= Added check that there is no DCCHeader detected to set missing DCC Header error
        if (!fDCC_Header || fDCC_Trailer) {
          fERROR[26] = true;
          bERROR |= 0x4000000;
          fERROR[0] = true;
          bERROR |= 0x1;
        }  // DCC Header is missing
        fDCC_Trailer = true;
        fDCC_Header = false;

        if (fDDU_Header) {
          // == DDU Trailer is missing
          fERROR[1] = true;
          bERROR |= 0x2;
          fERROR[0] = true;
          bERROR |= 0x1;
        }

        buffer += 4;
        buf_1 = &(tmpbuf[0]);  // Just for safety
        buf0 = &(tmpbuf[4]);   // Just for safety
        buf1 = &(tmpbuf[8]);   // Just for safety
        buf2 = &(tmpbuf[12]);  // Just for safety
        bzero(tmpbuf, sizeof(uint16_t) * 16);
        sync_stats();
        return length - 4;
      }
    }

    length -= 4;
    buffer += 4;
  }
  //Store the tail of the buffer
  buf_1 = &(tmpbuf[0]);
  buf0 = &(tmpbuf[4]);
  buf1 = &(tmpbuf[8]);
  buf2 = &(tmpbuf[12]);
  memcpy((void*)tmpbuf, (void*)(buffer - 16), sizeof(short) * 16);

  if (!modeDDUonly && !fDCC_Trailer && !fDCC_Header) {
    fERROR[26] = true;
    bERROR |= 0x4000000;
    fERROR[25] = true;
    bERROR |= 0x2000000;
    fERROR[0] = true;
    bERROR |= 0x1;
    sync_stats();
    return length;
  }

  return -2;
}

void CSCDCCExaminer::clear() {
  bzero(fERROR, sizeof(bool) * nERRORS);
  bzero(fWARNING, sizeof(bool) * nWARNINGS);
  bzero(fSUM_ERROR, sizeof(bool) * nERRORS);
  bzero(fSUM_WARNING, sizeof(bool) * nWARNINGS);
  bERROR = 0;
  bWARNING = 0;
  bSUM_ERROR = 0;
  bSUM_WARNING = 0;
  for (int err = 0; err < nERRORS; ++err)
    fCHAMB_ERR[err].clear();
  for (int wrn = 0; wrn < nWARNINGS; ++wrn)
    fCHAMB_WRN[wrn].clear();
  bCHAMB_ERR.clear();
  bCHAMB_WRN.clear();
  bCHAMB_PAYLOAD.clear();
  bCHAMB_STATUS.clear();
  bDDU_ERR.clear();
  bDDU_WRN.clear();
  dduBuffers.clear();
  dduOffsets.clear();
  dmbBuffers.clear();
  dmbOffsets.clear();
  dduSize.clear();
  dmbSize.clear();
}

void CSCDCCExaminer::zeroCounts() {
  ALCT_WordsSinceLastHeader = 0;
  ALCT_WordsSinceLastHeaderZeroSuppressed = 0;
  ALCT_WordCount = 0;
  ALCT_WordsExpected = 0;
  ALCT_ZSE = 0;
  TMB_WordsSinceLastHeader = 0;
  TMB_WordCount = 0;
  TMB_WordsExpected = 0;
  TMB_Tbins = 0;
  CFEB_SampleWordCount = 0;
  CFEB_SampleCount = 0;
  CFEB_BSampleCount = 0;
}

void CSCDCCExaminer::checkDAVs() {
  if (DAV_ALCT) {
    fERROR[21] = true;
    bERROR |= 0x200000;
    fCHAMB_ERR[21].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x200000;
    DAV_ALCT = false;
  }
  if (DAV_TMB) {
    fERROR[22] = true;
    bERROR |= 0x400000;
    fCHAMB_ERR[22].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x400000;
    DAV_TMB = false;
  }
  if (DAV_CFEB && DAV_CFEB != -16) {
    fERROR[23] = true;
    bERROR |= 0x800000;
    fCHAMB_ERR[23].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x800000;
    DAV_CFEB = 0;
  }
}

void CSCDCCExaminer::checkTriggerHeadersAndTrailers() {
#ifdef LOCAL_UNPACK
  /*
  COUT << " Ex-ALCT-Word-count " << std::endl;
  COUT << " ALCT Words Since Last Header: " <<  ALCT_WordsSinceLastHeader << std::endl;
  COUT << " ALCT Word Count: " <<  ALCT_WordCount << std::endl;
  COUT << " ALCT Words Expected: " << ALCT_WordsExpected << std::endl;
  */
#endif
  if (!fALCT_Header &&
      (ALCT_WordsSinceLastHeader != ALCT_WordCount || ALCT_WordsSinceLastHeader != ALCT_WordsExpected) &&
      ALCT_ZSE == 0) {
    fERROR[9] = true;
    bERROR |= 0x200;
    fCHAMB_ERR[9].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x200;
    ALCT_WordsSinceLastHeader = 0;
    ALCT_WordCount = 0;
    ALCT_WordsSinceLastHeader = 0;
    ALCT_WordsExpected = 0;
  }  // ALCT Word Count Error

  if (!fALCT_Header &&
      (ALCT_WordsSinceLastHeader != ALCT_WordsExpected || ALCT_WordsSinceLastHeaderZeroSuppressed != ALCT_WordCount) &&
      ALCT_ZSE != 0) {
    fERROR[9] = true;
    bERROR |= 0x200;
    fCHAMB_ERR[9].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x200;
    ALCT_WordsSinceLastHeaderZeroSuppressed = 0;
    ALCT_WordsSinceLastHeader = 0;
    ALCT_WordCount = 0;
    ALCT_WordsSinceLastHeader = 0;
    ALCT_WordsExpected = 0;
  }  // ALCT Word Count Error With zero suppression

  if (!fTMB_Header && (TMB_WordsSinceLastHeader != TMB_WordCount || TMB_WordsSinceLastHeader != TMB_WordsExpected)) {
    fERROR[14] = true;
    bERROR |= 0x4000;
    fCHAMB_ERR[14].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x4000;
    TMB_WordsSinceLastHeader = 0;
    TMB_WordCount = 0;
    TMB_WordsSinceLastHeader = 0;
    TMB_WordsExpected = 0;
  }  // TMB Word Count Error

  if ((CFEB_SampleCount % 8) != 0) {
    fERROR[17] = true;
    bERROR |= 0x20000;
    fCHAMB_ERR[17].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x20000;
    CFEB_SampleCount = 0;
  }  // Number of CFEB samples != 8*n

  if (fALCT_Header) {
    fERROR[7] = true;  // ALCT Trailer is missing
    bERROR |= 0x80;
    fCHAMB_ERR[7].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x80;
    ALCT_WordsSinceLastHeaderZeroSuppressed = 0;
    ALCT_WordsSinceLastHeader = 0;
    ALCT_WordsExpected = 0;
    fALCT_Header = false;
  }

  if (fTMB_Header) {
    fERROR[12] = true;  // TMB Trailer is missing
    bERROR |= 0x1000;
    fCHAMB_ERR[12].insert(currentChamber);
    bCHAMB_ERR[currentChamber] |= 0x1000;
    TMB_WordsSinceLastHeader = 0;
    TMB_WordsExpected = 0;
    fTMB_Header = false;
  }
}

inline void CSCDCCExaminer::sync_stats() {
  for (int err = 0; err < nERRORS; ++err)
    fSUM_ERROR[err] |= fERROR[err];
  for (int wrn = 0; wrn < nWARNINGS; ++wrn)
    fSUM_WARNING[wrn] |= fWARNING[wrn];
  bSUM_ERROR |= bERROR;
  bSUM_WARNING |= bWARNING;
}

inline int CSCDCCExaminer::scanbuf(const uint16_t*& buffer, int32_t length, uint16_t sig, uint16_t mask) {
  for (int i = 0; i < length; i++) {
    if ((buffer[i] & mask) == sig) {
      return i;
    }
  }
  return -1;
}