#include <MemoryGridTable.hh>

Inheritance diagram for MemoryGridTable:

Collaboration diagram for MemoryGridTable:

Public Types
enum	SizeMode { SIZE_MAU, SIZE_TWO_MAUS, SIZE_FOUR_MAUS, SIZE_EIGHT_MAUS }

enum	DataMode { DATA_BIN, DATA_HEX, DATA_SIGNED_INT, DATA_UNSIGNED_INT, DATA_DOUBLE, DATA_FLOAT }

Public Member Functions
	MemoryGridTable (Memory &memory)

virtual	~MemoryGridTable ()

virtual int	GetNumberRows ()

virtual int	GetNumberCols ()

virtual bool	IsEmptyCell (int row, int col)

virtual wxString	GetValue (int row, int col)

virtual wxString	GetRowLabelValue (int row)

virtual wxString	GetColLabelValue (int col)

virtual void	SetValue (int row, int col, const wxString &value)

void	writeValue (int row, int column, UIntWord memoryValue)

void	writeValue (int row, int column, DoubleWord memoryValue)

void	findAddress (Word addr, int &row, int &col)

void	setNumberOfColumns (unsigned columns)

void	setSizeMode (SizeMode mode)

void	setDataMode (DataMode mode)

unsigned	sizeOfCell () const

Private Member Functions
Word	cellAddress (int row, int column) const

wxString	memoryContents (ULongWord addr)

Private Attributes
Memory &	memory_
	Memory to access. More...

Word	start_
	Start address of the memory range to display. More...

Word	end_
	End address of the memory range to display. More...

DataMode	dataMode_
	Current data mode of the window (hex/binary/int...). More...

SizeMode	sizeMode_
	Current size mode of the window (1/2/4... MAUs per cell). More...

int	mauSize_
	Size of MAU in bits. More...

unsigned	numberOfColumns_
	Current number of columns in the grid. More...

Static Private Attributes
static const std::string	NOT_AVAILABLE = "N/A"
	String that is displayed in a cell that is not in the current AS. More...

static const int	COLUMNS

static const Word	MAX_ROWS = 600000000
	Maximum number of rows to display in the window. More...

Detailed Description

Grid table class which allows wxGrid to access TargetMemory contents without copying the memory contents to separate table.

Definition at line 47 of file MemoryGridTable.hh.

Member Enumeration Documentation

◆ DataMode

enum MemoryGridTable::DataMode

Enumerator
DATA_BIN
DATA_HEX
DATA_SIGNED_INT
DATA_UNSIGNED_INT
DATA_DOUBLE
DATA_FLOAT

Definition at line 71 of file MemoryGridTable.hh.

                   {
     DATA_BIN,
     DATA_HEX,
     DATA_SIGNED_INT,
     DATA_UNSIGNED_INT,
     DATA_DOUBLE,
     DATA_FLOAT
     };

◆ SizeMode

enum MemoryGridTable::SizeMode

Enumerator
SIZE_MAU
SIZE_TWO_MAUS
SIZE_FOUR_MAUS
SIZE_EIGHT_MAUS

Definition at line 64 of file MemoryGridTable.hh.

                   {
     SIZE_MAU,
     SIZE_TWO_MAUS,
     SIZE_FOUR_MAUS,
     SIZE_EIGHT_MAUS
     };

Constructor & Destructor Documentation

◆ MemoryGridTable()

MemoryGridTable::MemoryGridTable ( Memory & memory )

The Constructor.

Parameters

memory Memory to display in the grid.

Definition at line 49 of file MemoryGridTable.cc.

                                               :
     wxGridTableBase(),
     memory_(memory),
     dataMode_(DATA_HEX),
     sizeMode_(SIZE_MAU),
     numberOfColumns_(8) {
  
     start_ = memory.start();
     end_ = memory.end();
     mauSize_ = memory.MAUSize();
  
     // Kludge to avoid overflow with some calculations when the AS size = 2^32.
     // The grid-widget is not capable of displaying enough rows,
     // so the last address wouldn't be displayed anyway.
     if (start_ == 0 && end_ == 0xffffffff) end_ = 0xfffffffe;
 }

References Memory::end(), end_, Memory::MAUSize(), mauSize_, Memory::start(), and start_.

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◆ ~MemoryGridTable()

MemoryGridTable::~MemoryGridTable ( )

virtual

The Destructor.

Definition at line 70 of file MemoryGridTable.cc.

70 {

71 }

Member Function Documentation

◆ cellAddress()

Word MemoryGridTable::cellAddress	(	int	row,
		int	column
	)		const

private

Calculates the address of given cell.

Parameters

row	The selected row.
colummn	The selected column.

Returns: Address of the cell.

Definition at line 347 of file MemoryGridTable.cc.

                                                       {
     Word address = 0;
     unsigned size = sizeOfCell();
     address += column * size;
     address += row * numberOfColumns_ * size;
     return address;
 }

References numberOfColumns_, and sizeOfCell().

Referenced by writeValue().

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◆ findAddress()

void MemoryGridTable::findAddress	(	Word	addr,
		int &	row,
		int &	col
	)

Returns row and column nubmer of the address in the table.

Parameters

address	Memory address to find.
row	Variable to set the row to.
col	Variable to set the column to.

Definition at line 364 of file MemoryGridTable.cc.

                                                           {
     unsigned cellSize = sizeOfCell();
     row = addr / ((unsigned)numberOfColumns_ * cellSize);
     col = (addr % ((unsigned)numberOfColumns_ * cellSize)) / cellSize;
 }

References numberOfColumns_, and sizeOfCell().

Referenced by MemoryControl::onGoTo().

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◆ GetColLabelValue()

wxString MemoryGridTable::GetColLabelValue ( int col )

virtual

Returns column label of a grid column.

The label is the offset of the column compared to the first cell in the row.

Parameters

col	Column number.

Returns: Label for the grid column.

Definition at line 175 of file MemoryGridTable.cc.

                                          {
     string offset = Conversion::toHexString(col * sizeOfCell());
     return WxConversion::toWxString(offset);
 }

References sizeOfCell(), Conversion::toHexString(), and WxConversion::toWxString().

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◆ GetNumberCols()

int MemoryGridTable::GetNumberCols ( )

virtual

Returns column count of the grid.

Returns: Number of coulmns in the table.

Definition at line 102 of file MemoryGridTable.cc.

                                {
     return numberOfColumns_;
 }

References numberOfColumns_.

Referenced by MemoryControl::clearHighlights(), and MemoryControl::highlight().

◆ GetNumberRows()

int MemoryGridTable::GetNumberRows ( )

virtual

Returns row count of the grid.

The row count is limited to MAX_ROWS due to limtiations of wxGrid.

Returns: Number of rows in the table.

Definition at line 82 of file MemoryGridTable.cc.

                                {
  
     Word size = end_ - start_ + 1;
     Word cells = size / sizeOfCell();
     Word rows = cells / numberOfColumns_;
     if ((cells % numberOfColumns_) != 0) {
         rows++;
     }
     if (rows > MAX_ROWS) {
         rows = MAX_ROWS;
     }
     return rows;
 }

References end_, MAX_ROWS, numberOfColumns_, sizeOfCell(), and start_.

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◆ GetRowLabelValue()

wxString MemoryGridTable::GetRowLabelValue ( int row )

virtual

Returns row label of a grid row.

The label is the memory address of the first cell in the row.

Parameters

row	Row number.

Returns: Label for the grid row.

Definition at line 156 of file MemoryGridTable.cc.

                                          {
  
     string address = Conversion::toHexString(
         start_ + row * numberOfColumns_ * sizeOfCell());
  
     return WxConversion::toWxString(address);
 }

References numberOfColumns_, sizeOfCell(), start_, Conversion::toHexString(), and WxConversion::toWxString().

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◆ GetValue()

wxString MemoryGridTable::GetValue	(	int	row,
		int	col
	)

virtual

Returns cell value as a wxString.

Returns memory contents corresponding to the cell coordinates. The memory value is formatted to the string depending on the size and type modes set.

Parameters

row	Row of the cell.
col	Column of the cell.

Returns: Cell contents as a wxString.

Definition at line 132 of file MemoryGridTable.cc.

                                           {
  
     unsigned addr =
     start_ + (row * numberOfColumns_ * sizeOfCell()) +
     (col * sizeOfCell());
  
     if ((addr + sizeOfCell()) > (end_ + 1)) {
         return WxConversion::toWxString(NOT_AVAILABLE);
     }
  
     wxString value = memoryContents(addr);
     return value;
 }

References end_, memoryContents(), NOT_AVAILABLE, numberOfColumns_, sizeOfCell(), start_, and WxConversion::toWxString().

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◆ IsEmptyCell()

bool MemoryGridTable::IsEmptyCell	(	int	row,
		int	col
	)

virtual

Returns true, if the given cell is empty, false otherwise.

Parameters

row	Row of the cell.
col	Column of the cell.

Returns: True, if the column is empty.

Definition at line 115 of file MemoryGridTable.cc.

                                          {
     return false;
 }

◆ memoryContents()

wxString MemoryGridTable::memoryContents ( ULongWord addr )

private

Returns contents of the given memory contents as a wxString.

The string formatting depends on the current sizeMode_ and dataMode_ set.

Parameters

addr	Memory address to return.

Returns: Memory contents as a wxString.

Definition at line 199 of file MemoryGridTable.cc.

                                               {
  
     unsigned size = sizeOfCell();
     string dataString = NOT_AVAILABLE;
     unsigned int cellSize = sizeOfCell() * mauSize_;
  
     if ((size * mauSize_) <= sizeof(SIntWord) * BYTE_BITWIDTH) {
  
         // read one word
         ULongWord data = 0;
  
         if (addr < start_ || addr > end_) {
             // memory not available
             return WxConversion::toWxString(NOT_AVAILABLE);
         } else {
             memory_.read(addr, size, data);
         }
  
  
         if (dataMode_ == DATA_BIN) {
             dataString =
                 Conversion::toBinary(static_cast<int>(data), cellSize);
         } else if (dataMode_ == DATA_HEX) {
             unsigned digits = cellSize / 4;
             if ((cellSize % 4) != 0) {
                 cellSize++;
             }
             dataString = Conversion::toHexString(data, digits);
         } else if (dataMode_ == DATA_SIGNED_INT) {
             int extendedValue = data;
             extendedValue =
                 extendedValue <<
                 ((sizeof(extendedValue)*BYTE_BITWIDTH) - cellSize);
             extendedValue =
                 extendedValue >>
                 ((sizeof(extendedValue)*BYTE_BITWIDTH) - cellSize);
             dataString = Conversion::toString(extendedValue);
         } else if (dataMode_ == DATA_UNSIGNED_INT) {
             dataString = Conversion::toString(data);
         } else if (dataMode_ == DATA_FLOAT &&
                    cellSize == sizeof(FloatWord) * BYTE_BITWIDTH) {
  
             FloatWord flt;
             memory_.read(addr, flt);
             dataString = Conversion::toString(flt);
         }
     } else if ((size * mauSize_) <= sizeof(DoubleWord) * BYTE_BITWIDTH) {
  
         // Only double display is available due to the limitations of
         // stringstream hex/bin conversion.
         if (dataMode_ == DATA_DOUBLE
             && cellSize == sizeof(DoubleWord) * BYTE_BITWIDTH) {
  
             // read one double word
             DoubleWord data = 0;
             if (addr < start_ || addr > end_) {
                 // memory not available
                 return WxConversion::toWxString(NOT_AVAILABLE);
             } else {
                 memory_.read(addr, data);
             }
  
             dataString = Conversion::toString(data);
         }
     }
     return WxConversion::toWxString(dataString);
 }

References BYTE_BITWIDTH, DATA_BIN, DATA_DOUBLE, DATA_FLOAT, DATA_HEX, DATA_SIGNED_INT, DATA_UNSIGNED_INT, dataMode_, end_, mauSize_, memory_, NOT_AVAILABLE, Memory::read(), sizeOfCell(), Conversion::toBinary(), Conversion::toHexString(), Conversion::toString(), and WxConversion::toWxString().

Referenced by GetValue().

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◆ setDataMode()

void MemoryGridTable::setDataMode ( DataMode mode )

Sets the data display mode of the table.

Parameters

mode	Data display mode to set.

Definition at line 286 of file MemoryGridTable.cc.

                                           {
     dataMode_ = mode;
 }

References dataMode_.

Referenced by MemoryControl::onDataModeChanged().

◆ setNumberOfColumns()

void MemoryGridTable::setNumberOfColumns ( unsigned columns )

Sets the number of columns to display.

Parameters

columns New table width.

Definition at line 275 of file MemoryGridTable.cc.

                                                     {
     numberOfColumns_ = columns;
 }

References numberOfColumns_.

Referenced by MemoryControl::onWidthChanged().

◆ setSizeMode()

void MemoryGridTable::setSizeMode ( SizeMode mode )

Sets the memory size per cell.

Parameters

mode	Size mode to set.

Definition at line 297 of file MemoryGridTable.cc.

                                           {
     sizeMode_ = mode;
 }

References sizeMode_.

Referenced by MemoryControl::onSizeModeChanged().

◆ SetValue()

void MemoryGridTable::SetValue	(	int	row,
		int	col,
		const wxString &	value
	)

virtual

Not implemented, use setCellValue() instead.

Definition at line 185 of file MemoryGridTable.cc.

                                                    {
     // Do nothing.
 }

◆ sizeOfCell()

unsigned MemoryGridTable::sizeOfCell ( ) const

Returns size of memory displayed in a single cell.

Returns: Memory size of a cell.

Definition at line 377 of file MemoryGridTable.cc.

                                   {
     if (sizeMode_ == SIZE_MAU) {
     return 1;
     } else if (sizeMode_ == SIZE_TWO_MAUS) {
     return 2;
     } else if (sizeMode_ == SIZE_FOUR_MAUS) {
     return 4;
     } else if (sizeMode_ == SIZE_EIGHT_MAUS) {
     return 8;
     }
     assert(false);
     return 0;
 }

References assert, SIZE_EIGHT_MAUS, SIZE_FOUR_MAUS, SIZE_MAU, SIZE_TWO_MAUS, and sizeMode_.

Referenced by cellAddress(), findAddress(), GetColLabelValue(), GetNumberRows(), GetRowLabelValue(), GetValue(), memoryContents(), MemoryControl::onWriteMemory(), MemoryControl::updateView(), and writeValue().

◆ writeValue() [1/2]

void MemoryGridTable::writeValue	(	int	row,
		int	column,
		DoubleWord	memoryValue
	)

Sets the memory value correspoding to a cell.

Parameters

row	Row of the cell.
column	Column of the cell.
memoryValue	Value to set.

Definition at line 329 of file MemoryGridTable.cc.

                                                                        {
     Word address = start_;
     address += cellAddress(row, column);
     if (address < end_) {
         memory_.write(address, memoryValue);
         memory_.advanceClock();
     }
 }

References Memory::advanceClock(), cellAddress(), end_, memory_, start_, and Memory::write().

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◆ writeValue() [2/2]

void MemoryGridTable::writeValue	(	int	row,
		int	column,
		UIntWord	memoryValue
	)

Sets the memory value correspoding to a cell.

Parameters

row	Row of the cell.
column	Column of the cell.
memoryValue	Value to set.

Definition at line 310 of file MemoryGridTable.cc.

                                                                      {
     Word address = start_;
     address += cellAddress(row, column);
     int size = sizeOfCell();
     if (address < end_) {
         memory_.write(address, size, memoryValue);
         memory_.advanceClock();
     }
 }

References Memory::advanceClock(), cellAddress(), end_, memory_, sizeOfCell(), start_, and Memory::write().

Referenced by MemoryControl::clearMemory(), and MemoryControl::onWriteMemory().

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Member Data Documentation

◆ COLUMNS

const int MemoryGridTable::COLUMNS

staticprivate

Definition at line 98 of file MemoryGridTable.hh.

◆ dataMode_

DataMode MemoryGridTable::dataMode_

private

Current data mode of the window (hex/binary/int...).

Definition at line 102 of file MemoryGridTable.hh.

Referenced by memoryContents(), and setDataMode().

◆ end_

Word MemoryGridTable::end_

private

End address of the memory range to display.

Definition at line 94 of file MemoryGridTable.hh.

Referenced by GetNumberRows(), GetValue(), memoryContents(), MemoryGridTable(), and writeValue().

◆ mauSize_

int MemoryGridTable::mauSize_

private

Size of MAU in bits.

Definition at line 106 of file MemoryGridTable.hh.

Referenced by memoryContents(), and MemoryGridTable().

◆ MAX_ROWS

const Word MemoryGridTable::MAX_ROWS = 600000000

staticprivate

Maximum number of rows to display in the window.

Definition at line 100 of file MemoryGridTable.hh.

Referenced by GetNumberRows().

◆ memory_

Memory& MemoryGridTable::memory_

private

Memory to access.

Definition at line 90 of file MemoryGridTable.hh.

Referenced by memoryContents(), and writeValue().

◆ NOT_AVAILABLE

const string MemoryGridTable::NOT_AVAILABLE = "N/A"

staticprivate

String that is displayed in a cell that is not in the current AS.

Definition at line 97 of file MemoryGridTable.hh.

Referenced by GetValue(), and memoryContents().

◆ numberOfColumns_

unsigned MemoryGridTable::numberOfColumns_

private

Current number of columns in the grid.

Definition at line 108 of file MemoryGridTable.hh.

Referenced by cellAddress(), findAddress(), GetNumberCols(), GetNumberRows(), GetRowLabelValue(), GetValue(), and setNumberOfColumns().

◆ sizeMode_

SizeMode MemoryGridTable::sizeMode_

private

Current size mode of the window (1/2/4... MAUs per cell).

Definition at line 104 of file MemoryGridTable.hh.

Referenced by setSizeMode(), and sizeOfCell().

◆ start_

Word MemoryGridTable::start_

private

Start address of the memory range to display.

Definition at line 92 of file MemoryGridTable.hh.

Referenced by GetNumberRows(), GetRowLabelValue(), GetValue(), MemoryGridTable(), and writeValue().

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Enumeration Documentation

◆ DataMode

◆ SizeMode

Constructor & Destructor Documentation

◆ MemoryGridTable()

◆ ~MemoryGridTable()

Member Function Documentation

◆ cellAddress()

◆ findAddress()

◆ GetColLabelValue()

◆ GetNumberCols()

◆ GetNumberRows()

◆ GetRowLabelValue()

◆ GetValue()

◆ IsEmptyCell()

◆ memoryContents()

◆ setDataMode()

◆ setNumberOfColumns()

◆ setSizeMode()

◆ SetValue()

◆ sizeOfCell()

◆ writeValue() [1/2]

◆ writeValue() [2/2]

Member Data Documentation

◆ COLUMNS

◆ dataMode_

◆ end_

◆ mauSize_

◆ MAX_ROWS

◆ memory_

◆ NOT_AVAILABLE

◆ numberOfColumns_

◆ sizeMode_

◆ start_