Package be.lmenten.avr.core

Class CoreMemoryCell

java.lang.Object
be.lmenten.avr.core.CoreMemoryCell
Direct Known Subclasses:
CoreData, Instruction
public abstract class CoreMemoryCell extends Object

The root of any data or instruction held in one of the memories of an Avr MCU.

Features:

  • dirty status
  • list of accesses
  • access events
  • bit level manipulation
Since:
1.0
Author:
Laurent Menten

  • Constructor Details

    • CoreMemoryCell

      public CoreMemoryCell​(int address, int data)
      Parameters:
      address -
      data -

    • CoreMemoryCell

      public CoreMemoryCell​(int address)
      Parameters:
      address -

    • CoreMemoryCell

      public CoreMemoryCell()

  • Method Details

    • reset

      public void reset()
      Reset this memory cell to its default state.

    • getDataWidth

      public abstract int getDataWidth()
      Get the size in bits of this memory cell.
      • 8 for data
      • 16 for code
      Returns:

    • getDataMask

      public final int getDataMask()
      Get the full mask for this memory cell.
      • The mask is 0b1111_1111 (0xFF) for data
      • The mask is 0b1111_1111_1111_1111 (0xFFFF) for code
      Returns:

    • hasCellAddress

      public boolean hasCellAddress()
      Returns:

    • setCellAddress

      public void setCellAddress​(int address)
      Parameters:
      address -

    • getCellAddress

      public int getCellAddress()
      Returns:

    • hasInitialData

      public boolean hasInitialData()
      Returns:

    • getInitialData

      public int getInitialData()
      Returns:

    • hasData

      public boolean hasData()
      Returns:

    • setData

      public void setData​(Value value)
      Parameters:
      value -

    • setData

      public void setData​(int data)
      Parameters:
      data -

    • getData

      public int getData()
      Returns:

    • silentSetData

      public void silentSetData​(int data)
      Set this cell content but no event is fired. The dirty status is updated.
      Parameters:
      data -

    • silentGetData

      public int silentGetData()

      Get this cell content but no event is fired.

      Returns:

    • rawSetData

      public void rawSetData​(int data)
      Set the cell content with no further action. No event is fired and the dirty status is not updated.
      Parameters:
      data -

    • rawGetData

      public int rawGetData()
      Get the raw cell content. No event is fired and the data is return as-is.
      Returns:

    • isDirty

      public boolean isDirty()
      Returns:

    • setDirty

      public void setDirty​(boolean dirty)
      Parameters:
      dirty -

    • setReadAccessRecordingEnabled

      public void setReadAccessRecordingEnabled​(boolean enabled)
      Parameters:
      enabled -

    • setWriteAccessRecordingEnabled

      public void setWriteAccessRecordingEnabled​(boolean enabled)
      Parameters:
      enabled -

    • setExecuteAccessRecordingEnabled

      public void setExecuteAccessRecordingEnabled​(boolean enabled)
      Parameters:
      enabled -

    • isReadAccessRecordingEnabled

      public boolean isReadAccessRecordingEnabled()
      Returns:

    • isWriteAccessRecordingEnabled

      public boolean isWriteAccessRecordingEnabled()
      Returns:

    • isExecuteAccessRecordingEnabled

      public boolean isExecuteAccessRecordingEnabled()
      Returns:

    • recordReadAccess

      public void recordReadAccess​(Core core, Instruction instruction)
      Parameters:
      core -
      instruction -

    • recordWriteAccess

      public void recordWriteAccess​(Core core, Instruction instruction)
      Parameters:
      core -
      instruction -

    • recordExecuteAccess

      public void recordExecuteAccess​(Core core, Instruction instruction)
      Parameters:
      core -
      instruction -

    • getAccessesIterator

      public ListIterator<Access> getAccessesIterator()
      Returns:

    • getAccessesCount

      public int getAccessesCount()
      Returns:

    • wasAccessed

      public boolean wasAccessed()
      Returns:

    • addAccessListener

      public void addAccessListener​(AccessEventListener listener)
      Parameters:
      listener -

    • removeAccessListener

      public void removeAccessListener​(AccessEventListener listener)
      Parameters:
      listener -

    • fireAccessEvent

      protected void fireAccessEvent​(AccessEvent event)
      Parameters:
      event -

    • fireReadAccessEvent

      protected void fireReadAccessEvent​(int oldData)
      Parameters:
      oldData -

    • fireWriteAccessEvent

      protected void fireWriteAccessEvent​(int oldData, int newData)
      Parameters:
      oldData -
      newData -

    • fireExecuteAccessEvent

      protected void fireExecuteAccessEvent​(long tick)

    • bit

      public boolean bit​(int bit)
      Get the state of a single bit.
      Parameters:
      bit -
      Returns:

    • bit0

      public boolean bit0()

    • bit1

      public boolean bit1()

    • bit2

      public boolean bit2()

    • bit3

      public boolean bit3()

    • bit4

      public boolean bit4()

    • bit5

      public boolean bit5()

    • bit6

      public boolean bit6()

    • bit7

      public boolean bit7()

    • bit

      public void bit​(int bit, boolean state)
      Set the state of a single bit.
      Parameters:
      bit -
      state -

    • bit0

      public void bit0​(boolean state)

    • bit1

      public void bit1​(boolean state)

    • bit2

      public void bit2​(boolean state)

    • bit3

      public void bit3​(boolean state)

    • bit4

      public void bit4​(boolean state)

    • bit5

      public void bit5​(boolean state)

    • bit6

      public void bit6​(boolean state)

    • bit7

      public void bit7​(boolean state)

    • toParsedLine

      public final void toParsedLine​(ParsedAssemblerLine parsedLine)
      Parameters:
      parsedLine -

    • toParsedLine

      public abstract void toParsedLine​(Core core, ParsedAssemblerLine parsedLine)
      Parameters:
      core -
      parsedLine -

    • toString

      public String toString()
      Overrides:
      toString in class Object