148_reader = new NativeReader(targetStream, _target.IsLittleEndian);

194if (_reader.ReadBits(1, ref _bitOffset) != 0) 196_numRegisters = _reader.DecodeVarLengthUnsigned(TTraits.NUM_REGISTERS_ENCBASE, ref _bitOffset); 200if (_reader.ReadBits(1, ref _bitOffset) != 0) 202numStackSlots = _reader.DecodeVarLengthUnsigned(TTraits.NUM_STACK_SLOTS_ENCBASE, ref _bitOffset); 203_numUntrackedSlots = _reader.DecodeVarLengthUnsigned(TTraits.NUM_UNTRACKED_SLOTS_ENCBASE, ref _bitOffset); 212uint regNum = _reader.DecodeVarLengthUnsigned(TTraits.REGISTER_ENCBASE, ref _bitOffset); 213GcSlotFlags flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 221regNum = _reader.DecodeVarLengthUnsigned(TTraits.REGISTER_ENCBASE, ref _bitOffset); 222flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 226regNum += _reader.DecodeVarLengthUnsigned(TTraits.REGISTER_DELTA_ENCBASE, ref _bitOffset) + 1; 236GcStackSlotBase spBase = (GcStackSlotBase)_reader.ReadBits(2, ref _bitOffset); 237int normSpOffset = _reader.DecodeVarLengthSigned(TTraits.STACK_SLOT_ENCBASE, ref _bitOffset); 239GcSlotFlags flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 245spBase = (GcStackSlotBase)_reader.ReadBits(2, ref _bitOffset); 250normSpOffset = _reader.DecodeVarLengthSigned(TTraits.STACK_SLOT_ENCBASE, ref _bitOffset); 252flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 256int normSpOffsetDelta = (int)_reader.DecodeVarLengthUnsigned(TTraits.STACK_SLOT_DELTA_ENCBASE, ref _bitOffset); 268GcStackSlotBase spBase = (GcStackSlotBase)_reader.ReadBits(2, ref _bitOffset); 269int normSpOffset = _reader.DecodeVarLengthSigned(TTraits.STACK_SLOT_ENCBASE, ref _bitOffset); 271GcSlotFlags flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 277spBase = (GcStackSlotBase)_reader.ReadBits(2, ref _bitOffset); 282normSpOffset = _reader.DecodeVarLengthSigned(TTraits.STACK_SLOT_ENCBASE, ref _bitOffset); 284flags = (GcSlotFlags)_reader.ReadBits(2, ref _bitOffset); 288int normSpOffsetDelta = (int)_reader.DecodeVarLengthUnsigned(TTraits.STACK_SLOT_DELTA_ENCBASE, ref _bitOffset); 312uint normStartDelta = _reader.DecodeVarLengthUnsigned(TTraits.INTERRUPTIBLE_RANGE_DELTA1_ENCBASE, ref _bitOffset); 313uint normStopDelta = _reader.DecodeVarLengthUnsigned(TTraits.INTERRUPTIBLE_RANGE_DELTA2_ENCBASE, ref _bitOffset) + 1; 345_slimHeader = _reader.ReadBits(1, ref _bitOffset) == 0; 359if (_reader.ReadBits(1, ref _bitOffset) != 0) 372_codeLength = TTraits.DenormalizeCodeLength(_reader.DecodeVarLengthUnsigned(TTraits.CODE_LENGTH_ENCBASE, ref _bitOffset)); 397_numSafePoints = _reader.DecodeVarLengthUnsigned(TTraits.NUM_SAFE_POINTS_ENCBASE, ref _bitOffset); 405_headerFlags = (GcInfoHeaderFlags)_reader.ReadBits((int)GcInfoHeaderFlags.GC_INFO_FLAGS_BIT_SIZE, ref _bitOffset); 409_codeLength = TTraits.DenormalizeCodeLength(_reader.DecodeVarLengthUnsigned(TTraits.CODE_LENGTH_ENCBASE, ref _bitOffset)); 419uint normPrologSize = _reader.DecodeVarLengthUnsigned(TTraits.NORM_PROLOG_SIZE_ENCBASE, ref _bitOffset) + 1; 420uint normEpilogSize = _reader.DecodeVarLengthUnsigned(TTraits.NORM_EPILOG_SIZE_ENCBASE, ref _bitOffset); 429uint normPrologSize = _reader.DecodeVarLengthUnsigned(TTraits.NORM_PROLOG_SIZE_ENCBASE, ref _bitOffset) + 1; 442TTraits.DenormalizeStackSlot(_reader.DecodeVarLengthSigned(TTraits.GS_COOKIE_STACK_SLOT_ENCBASE, ref _bitOffset)) : 450TTraits.DenormalizeStackSlot(_reader.DecodeVarLengthSigned(TTraits.GENERICS_INST_CONTEXT_STACK_SLOT_ENCBASE, ref _bitOffset)) : 455TTraits.DenormalizeStackBaseRegister(_reader.DecodeVarLengthUnsigned(TTraits.STACK_BASE_REGISTER_ENCBASE, ref _bitOffset)) : 460_sizeOfEnCPreservedArea = _reader.DecodeVarLengthUnsigned(TTraits.SIZE_OF_EDIT_AND_CONTINUE_PRESERVED_AREA_ENCBASE, ref _bitOffset); 466_sizeOfEnCFixedStackFrame = _reader.DecodeVarLengthUnsigned(TTraits.SIZE_OF_EDIT_AND_CONTINUE_FIXED_STACK_FRAME_ENCBASE, ref _bitOffset); 477TTraits.DenormalizeStackSlot(_reader.DecodeVarLengthSigned(TTraits.REVERSE_PINVOKE_FRAME_ENCBASE, ref _bitOffset)) : 484TTraits.DenormalizeSizeOfStackArea(_reader.DecodeVarLengthUnsigned(TTraits.SIZE_OF_STACK_AREA_ENCBASE, ref _bitOffset)); 489_numSafePoints = _reader.DecodeVarLengthUnsigned(TTraits.NUM_SAFE_POINTS_ENCBASE, ref _bitOffset); 492_numInterruptibleRanges = _reader.DecodeVarLengthUnsigned(TTraits.NUM_INTERRUPTIBLE_RANGES_ENCBASE, ref _bitOffset); 617if (_numSafePoints > 0 && _reader.ReadBits(1, ref bitOffset) != 0) 619numBitsPerOffset = (uint)_reader.DecodeVarLengthUnsigned(TTraits.POINTER_SIZE_ENCBASE, ref bitOffset) + 1; 629uint liveStatesOffset = (uint)_reader.ReadBits((int)numBitsPerOffset, ref bitOffset); 633if (_reader.ReadBits(1, ref bitOffset) != 0) 636bool fSkip = _reader.ReadBits(1, ref bitOffset) == 0; 638uint readSlots = (uint)_reader.DecodeVarLengthUnsigned( 643uint cnt = (uint)_reader.DecodeVarLengthUnsigned( 666if (_reader.ReadBits(1, ref bitOffset) != 0) 693uint numBitsPerPointer = (uint)_reader.DecodeVarLengthUnsigned(TTraits.POINTER_SIZE_ENCBASE, ref bitOffset); 705chunkPointer = (uint)_reader.ReadBits((int)numBitsPerPointer, ref bitOffset); 720if (_reader.ReadBits(1, ref bitOffset) != 0) 723bool fSkipCBL = _reader.ReadBits(1, ref bitOffset) == 0; 725uint readSlots = (uint)_reader.DecodeVarLengthUnsigned( 730uint cnt = (uint)_reader.DecodeVarLengthUnsigned( 744if (_reader.ReadBits(1, ref bitOffset) != 0) 757bool cblSimple = _reader.ReadBits(1, ref cblOffset) == 0; 763cblSkipFirst = _reader.ReadBits(1, ref cblOffset) == 0; 771while (_reader.ReadBits(1, ref cblOffset) == 0) 780uint tmp = (uint)_reader.DecodeVarLengthUnsigned(TTraits.LIVESTATE_RLE_SKIP_ENCBASE, ref cblOffset) + 1; 782cblCnt = (uint)_reader.DecodeVarLengthUnsigned(TTraits.LIVESTATE_RLE_RUN_ENCBASE, ref cblOffset); 786uint tmp = (uint)_reader.DecodeVarLengthUnsigned(TTraits.LIVESTATE_RLE_RUN_ENCBASE, ref cblOffset) + 1; 788cblCnt = (uint)_reader.DecodeVarLengthUnsigned(TTraits.LIVESTATE_RLE_SKIP_ENCBASE, ref cblOffset); 791uint isLive = (uint)_reader.ReadBits(1, ref finalStateBitOffset); 798if (_reader.ReadBits(1, ref transitionBitOffset) == 0) 801uint transitionOffset = (uint)_reader.ReadBits(TTraits.NUM_NORM_CODE_OFFSETS_PER_CHUNK_LOG2, ref transitionBitOffset); 871uint spOffset = (uint)_reader.ReadBits((int)numBitsPerOffset, ref scanOffset);