diff --git a/NEWS.md b/NEWS.md
index fe6f265c..9c7b676f 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -5,6 +5,11 @@ Red Panda C++ Version 0.13.2
   - enhancement: if there's no selection when copy/cut, select currect line by default
   - enhancement: support ligatures in fonts like fira code ( disabled by default, can be turned on in options dialog's editor font page)
   - enhancement: add "minimum id length required to show code completion" to the options dialog's editor code completion page
+  - enhancement: modify values in the memory view while debugging
+  - enhancement: auto update watch, local and memory view after expression evaluated
+  - enhancement: auto update watch, local and memory view after memory modified
+
+ 
 
 Red Panda C++ Version 0.13.1
  - enhancement: suppoort localization info in project templates
diff --git a/RedPandaIDE/debugger.cpp b/RedPandaIDE/debugger.cpp
index 9654bf85..2237fe33 100644
--- a/RedPandaIDE/debugger.cpp
+++ b/RedPandaIDE/debugger.cpp
@@ -39,6 +39,9 @@ Debugger::Debugger(QObject *parent) : QObject(parent)
     mBacktraceModel=new BacktraceModel(this);
     mWatchModel = new WatchModel(this);
     mRegisterModel = new RegisterModel(this);
+    mMemoryModel = new MemoryModel(8,this);
+    connect(mMemoryModel,&MemoryModel::setMemoryData,
+            this, &Debugger::setMemoryData);
     mExecuting = false;
     mReader = nullptr;
     mTarget = nullptr;
@@ -98,6 +101,7 @@ bool Debugger::start(const QString& inferior)
         }
 
     }
+    mMemoryModel->reset();
     mWatchModel->resetAllVarInfos();
     if (pSettings->debugger().useGDBServer()) {
         mTarget = new DebugTarget(inferior,compilerSet->debugServer(),pSettings->debugger().GDBServerPort());
@@ -114,6 +118,7 @@ bool Debugger::start(const QString& inferior)
     mReader = new DebugReader(this);
     mReader->setDebuggerPath(debuggerPath);
     connect(mReader, &QThread::finished,this,&Debugger::cleanUpReader);
+    connect(mReader, &QThread::finished,mMemoryModel,&MemoryModel::reset);
     connect(mReader, &DebugReader::parseFinished,this,&Debugger::syncFinishedParsing,Qt::BlockingQueuedConnection);
     connect(mReader, &DebugReader::changeDebugConsoleLastLine,this,&Debugger::onChangeDebugConsoleLastline);
     connect(mReader, &DebugReader::cmdStarted,pMainWindow, &MainWindow::disableDebugActions);
@@ -147,10 +152,9 @@ bool Debugger::start(const QString& inferior)
     connect(mReader, &DebugReader::inferiorStopped,pMainWindow,
             &MainWindow::setActiveBreakpoint);
     connect(mReader, &DebugReader::inferiorStopped,this,
-            &Debugger::refreshWatchVars);
+            &Debugger::refreshAll);
 
     mReader->registerInferiorStoppedCommand("-stack-list-frames","");
-    mReader->registerInferiorStoppedCommand("-stack-list-variables", "--all-values");
     mReader->start();
     mReader->waitStart();
 
@@ -210,6 +214,14 @@ void Debugger::updateRegisterValues(const QHash<int, QString> &values)
     mRegisterModel->updateValues(values);
 }
 
+void Debugger::refreshAll()
+{
+    refreshWatchVars();
+    sendCommand("-stack-list-variables", "--all-values");
+    if (memoryModel()->startAddress()>0)
+        sendCommand("-data-read-memory",QString("%1 x 1 8 8 ").arg(memoryModel()->startAddress()));
+}
+
 RegisterModel *Debugger::registerModel() const
 {
     return mRegisterModel;
@@ -407,6 +419,11 @@ void Debugger::fetchVarChildren(const QString &varName)
     }
 }
 
+MemoryModel *Debugger::memoryModel() const
+{
+    return mMemoryModel;
+}
+
 void Debugger::removeWatchVars(bool deleteparent)
 {
     if (deleteparent) {
@@ -567,8 +584,15 @@ void Debugger::syncFinishedParsing()
     }
 }
 
+void Debugger::setMemoryData(qulonglong address, unsigned char data)
+{
+    sendCommand("-data-write-memory-bytes", QString("%1 \"%2\"").arg(address).arg(data,2,16,QChar('0')));
+    refreshAll();
+}
+
 void Debugger::updateMemory(const QStringList &value)
 {
+    mMemoryModel->updateMemory(value);
     emit memoryExamineReady(value);
 }
 
@@ -2339,3 +2363,132 @@ void DebugTarget::run()
         emit processError(mProcess->error());
     }
 }
+
+MemoryModel::MemoryModel(int dataPerLine, QObject *parent):
+    QAbstractTableModel(parent),
+    mDataPerLine(dataPerLine),
+    mStartAddress(0)
+{
+}
+
+void MemoryModel::updateMemory(const QStringList &value)
+{
+    QRegExp delimiter("(\\s+)");
+    QList<PMemoryLine> newModel;
+    for (int i=0;i<value.length();i++) {
+        QString line = value[i].trimmed();
+        QStringList dataLst = line.split(delimiter,QString::SkipEmptyParts);
+        PMemoryLine memoryLine = std::make_shared<MemoryLine>();
+        memoryLine->startAddress = -1;
+        if (dataLst.length()>0) {
+            memoryLine->startAddress = stringToHex(dataLst[0],0);
+            for (int j=1;j<dataLst.length();j++) {
+                qulonglong data = stringToHex(dataLst[j],-1);
+                if (data>=0)
+                    memoryLine->datas.append((unsigned char)data);
+            }
+        }
+        newModel.append(memoryLine);
+    }
+    if (newModel.count()>0 && newModel.count()== mLines.count() &&
+            newModel[0]->startAddress == mLines[0]->startAddress) {
+        for (int i=0;i<newModel.count();i++) {
+            PMemoryLine newLine = newModel[i];
+            PMemoryLine oldLine = mLines[i];
+            for (int j=0;j<newLine->datas.count();j++) {
+                if (j>=oldLine->datas.count())
+                    break;
+                if (newLine->datas[j]!=oldLine->datas[j])
+                    newLine->changedDatas.insert(j);
+            }
+        }
+        mLines = newModel;
+        emit dataChanged(createIndex(0,0),
+                         createIndex(mLines.count()-1,mDataPerLine-1));
+    } else {
+        beginResetModel();
+        mLines = newModel;
+        endResetModel();
+    }
+    if (mLines.count()>0) {
+        mStartAddress = mLines[0]->startAddress;
+    } else {
+        mStartAddress = 0;
+    }
+ }
+
+int MemoryModel::rowCount(const QModelIndex &parent) const
+{
+    return mLines.count();
+}
+
+int MemoryModel::columnCount(const QModelIndex &parent) const
+{
+    return mDataPerLine;
+}
+
+QVariant MemoryModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+    if (index.row()<0 || index.row()>=mLines.count())
+        return QVariant();
+    PMemoryLine line = mLines[index.row()];
+    int col = index.column();
+    if (col<0  || col>=line->datas.count())
+        return QVariant();
+    if (role == Qt::DisplayRole)
+        return QString("%1").arg(line->datas[col],2,16,QChar('0'));
+    return QVariant();
+}
+
+QVariant MemoryModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation == Qt::Vertical && role ==  Qt::DisplayRole) {
+        if (section<0 || section>=mLines.count())
+            return QVariant();
+        PMemoryLine line = mLines[section];
+        return QString("0x%1").arg(line->startAddress,0,16,QChar('0'));
+    }
+    return QVariant();
+}
+
+bool MemoryModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+    if (!index.isValid())
+        return false;
+    if (index.row()<0 || index.row()>=mLines.count())
+        return false;
+    PMemoryLine line = mLines[index.row()];
+    int col = index.column();
+    if (col<0  || col>=line->datas.count())
+        return false;
+    if (role == Qt::EditRole && mStartAddress>0) {
+        bool ok;
+        unsigned char val = ("0x"+value.toString()).toUInt(&ok,16);
+        if (!ok || val>255)
+            return false;
+        emit setMemoryData(mStartAddress+mDataPerLine*index.row()+col,val);
+        return true;
+    }
+    return false;
+}
+
+Qt::ItemFlags MemoryModel::flags(const QModelIndex &index) const
+{
+    Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+    if (mStartAddress!=0)
+        flags |= Qt::ItemIsEditable;
+    return flags;
+}
+
+qulonglong MemoryModel::startAddress() const
+{
+    return mStartAddress;
+}
+
+void MemoryModel::reset()
+{
+    mStartAddress=0;
+    mLines.clear();
+}
diff --git a/RedPandaIDE/debugger.h b/RedPandaIDE/debugger.h
index 680b73d0..d5f0efc6 100644
--- a/RedPandaIDE/debugger.h
+++ b/RedPandaIDE/debugger.h
@@ -27,6 +27,7 @@
 #include <QQueue>
 #include <QQueue>
 #include <QSemaphore>
+#include <QSet>
 #include <QThread>
 #include <QTimer>
 #include <memory>
@@ -204,6 +205,39 @@ private:
     int mUpdateCount;
 };
 
+struct MemoryLine {
+    uintptr_t startAddress;
+    QList<unsigned char> datas;
+    QSet<int> changedDatas;
+};
+
+using PMemoryLine = std::shared_ptr<MemoryLine>;
+
+class MemoryModel: public QAbstractTableModel{
+    Q_OBJECT
+public:
+    explicit MemoryModel(int dataPerLine,QObject* parent=nullptr);
+
+    void updateMemory(const QStringList& value);
+    qulonglong startAddress() const;
+    void reset();
+    // QAbstractItemModel interface
+signals:
+    void setMemoryData(qlonglong address, unsigned char data);
+public:
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+private:
+    int mDataPerLine;
+    QList<PMemoryLine> mLines;
+    qulonglong mStartAddress;
+};
+
 
 class DebugReader;
 class DebugTarget;
@@ -259,12 +293,15 @@ public:
 
     RegisterModel *registerModel() const;
 
+    MemoryModel *memoryModel() const;
+
 signals:
     void evalValueReady(const QString& s);
     void memoryExamineReady(const QStringList& s);
     void localsReady(const QStringList& s);
 public slots:
     void stop();
+    void refreshAll();
 
 private:
     void sendWatchCommand(PWatchVar var);
@@ -275,6 +312,7 @@ private:
 
 private slots:
     void syncFinishedParsing();
+    void setMemoryData(qulonglong address, unsigned char data);
     void updateMemory(const QStringList& value);
     void updateEval(const QString& value);
     void updateDisassembly(const QString& file, const QString& func,const QStringList& value);
@@ -291,6 +329,7 @@ private:
     BacktraceModel *mBacktraceModel;
     WatchModel *mWatchModel;
     RegisterModel *mRegisterModel;
+    MemoryModel *mMemoryModel;
     DebugReader *mReader;
     DebugTarget *mTarget;
     int mLeftPageIndexBackup;
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 8ab21ebb..5887da2a 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -135,6 +135,8 @@ MainWindow::MainWindow(QWidget *parent)
     ui->tblBreakpoints->setModel(mDebugger->breakpointModel());
     ui->tblStackTrace->setModel(mDebugger->backtraceModel());
     ui->watchView->setModel(mDebugger->watchModel());
+    ui->tblMemoryView->setModel(mDebugger->memoryModel());
+    ui->tblMemoryView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
 
     try {
         mDebugger->breakpointModel()->load(includeTrailingPathDelimiter(pSettings->dirs().config())
@@ -1116,7 +1118,8 @@ void MainWindow::updateDebuggerSettings()
     QFont font(pSettings->debugger().fontName());
     font.setPixelSize(pointToPixel(pSettings->debugger().fontSize()));
     ui->debugConsole->setFont(font);
-    ui->txtMemoryView->setFont(font);
+    ui->tblMemoryView->setFont(font);
+    //ui->txtMemoryView->setFont(font);
     ui->txtLocals->setFont(font);
 
     int idx = findTabIndex(ui->debugViews,ui->tabDebugConsole);
@@ -4421,6 +4424,7 @@ void MainWindow::onDebugEvaluateInput()
         connect(mDebugger, &Debugger::evalValueReady,
                    this, &MainWindow::onEvalValueReady);
         mDebugger->sendCommand("-data-evaluate-expression",s);
+        pMainWindow->debugger()->refreshAll();
     }
 }
 
@@ -4428,8 +4432,8 @@ void MainWindow::onDebugMemoryAddressInput()
 {
     QString s=ui->cbMemoryAddress->currentText().trimmed();
     if (!s.isEmpty()) {
-        connect(mDebugger, &Debugger::memoryExamineReady,
-                   this, &MainWindow::onMemoryExamineReady);
+//        connect(mDebugger, &Debugger::memoryExamineReady,
+//                   this, &MainWindow::onMemoryExamineReady);
         mDebugger->sendCommand("-data-read-memory",QString("%1 x 1 8 8 ").arg(s));
     }
 }
@@ -4487,14 +4491,15 @@ void MainWindow::onEvalValueReady(const QString& value)
 
 void MainWindow::onMemoryExamineReady(const QStringList& value)
 {
-    ui->txtMemoryView->clear();
-    foreach (QString s, value) {
-        s.replace("\t","  ");
-        ui->txtMemoryView->appendPlainText(s);
-    }
-    ui->txtMemoryView->moveCursor(QTextCursor::Start);
-    disconnect(mDebugger, &Debugger::memoryExamineReady,
-               this, &MainWindow::onMemoryExamineReady);
+//    ui->txtMemoryView->clear();
+//    foreach (QString s, value) {
+//        s.replace("\t","  ");
+//        ui->txtMemoryView->appendPlainText(s);
+//    }
+//    ui->txtMemoryView->moveCursor(QTextCursor::Start);
+
+//    disconnect(mDebugger, &Debugger::memoryExamineReady,
+//               this, &MainWindow::onMemoryExamineReady);
 }
 
 void MainWindow::onLocalsReady(const QStringList& value)
diff --git a/RedPandaIDE/mainwindow.ui b/RedPandaIDE/mainwindow.ui
index cd649490..d343b303 100644
--- a/RedPandaIDE/mainwindow.ui
+++ b/RedPandaIDE/mainwindow.ui
@@ -702,7 +702,7 @@
              <enum>QTabWidget::North</enum>
             </property>
             <property name="currentIndex">
-             <number>2</number>
+             <number>4</number>
             </property>
             <widget class="QWidget" name="tabDebugConsole">
              <attribute name="title">
@@ -850,6 +850,13 @@
                 </property>
                </widget>
               </item>
+              <item row="1" column="0" colspan="2">
+               <widget class="QTableView" name="tblMemoryView">
+                <attribute name="horizontalHeaderVisible">
+                 <bool>false</bool>
+                </attribute>
+               </widget>
+              </item>
               <item row="0" column="1">
                <widget class="QComboBox" name="cbMemoryAddress">
                 <property name="sizePolicy">
@@ -866,16 +873,6 @@
                 </property>
                </widget>
               </item>
-              <item row="1" column="0" colspan="2">
-               <widget class="QPlainTextEdit" name="txtMemoryView">
-                <property name="lineWrapMode">
-                 <enum>QPlainTextEdit::NoWrap</enum>
-                </property>
-                <property name="readOnly">
-                 <bool>true</bool>
-                </property>
-               </widget>
-              </item>
              </layout>
             </widget>
            </widget>
diff --git a/RedPandaIDE/settingsdialog/projectversioninfowidget.cpp b/RedPandaIDE/settingsdialog/projectversioninfowidget.cpp
index be20360a..9af746da 100644
--- a/RedPandaIDE/settingsdialog/projectversioninfowidget.cpp
+++ b/RedPandaIDE/settingsdialog/projectversioninfowidget.cpp
@@ -38,6 +38,7 @@ static BOOL CALLBACK localeEnumProc(
     }
     return TRUE;
 }
+
 ProjectVersionInfoWidget::ProjectVersionInfoWidget(const QString &name, const QString &group, QWidget *parent) :
     SettingsWidget(name,group,parent),
     ui(new Ui::ProjectVersionInfoWidget)
diff --git a/RedPandaIDE/utils.cpp b/RedPandaIDE/utils.cpp
index b8171516..ab0ed3ce 100644
--- a/RedPandaIDE/utils.cpp
+++ b/RedPandaIDE/utils.cpp
@@ -1077,3 +1077,12 @@ float desktopDpi()
 {
     return qApp->desktop()->logicalDpiY();
 }
+
+qulonglong stringToHex(const QString &str, qulonglong defaultValue)
+{
+    bool isOk;
+    qulonglong value = str.toULongLong(&isOk,16);
+    if (isOk)
+        return value;
+    return defaultValue;
+}
diff --git a/RedPandaIDE/utils.h b/RedPandaIDE/utils.h
index 0a7871ce..c31c5488 100644
--- a/RedPandaIDE/utils.h
+++ b/RedPandaIDE/utils.h
@@ -190,6 +190,7 @@ bool stringIsBlank(const QString& s);
 int compareFileModifiedTime(const QString& filename1, const QString& filename2);
 QByteArray getHTTPBody(const QByteArray& content);
 bool haveGoodContrast(const QColor& c1, const QColor &c2);
+qulonglong stringToHex(const QString& str, qulonglong defaultValue = 0);
 
 //void changeTheme(const QString& themeName);