GUI: ability to add/del effect cols and EExx value

src/engine/engine.cpp

@@ -1408,6 +1408,7 @@ void DivEngine::play() {
 void DivEngine::stop() {
   isBusy.lock();
   playing=false;
+  extValuePresent=false;
   isBusy.unlock();
 }
 
@@ -1417,6 +1418,8 @@ void DivEngine::reset() {
     chan[i].volMax=(dispatch->dispatch(DivCommand(DIV_CMD_GET_VOLMAX,i))<<8)|0xff;
     chan[i].volume=chan[i].volMax;
   }
+  extValue=0;
+  extValuePresent=0;
   dispatch->reset();
 }
 
@@ -1442,6 +1445,14 @@ int DivEngine::getRow() {
   return curRow;
 }
 
+bool DivEngine::hasExtValue() {
+  return extValuePresent;
+}
+
+unsigned char DivEngine::getExtValue() {
+  return extValue;
+}
+
 bool DivEngine::isPlaying() {
   return playing;
 }

src/engine/engine.h

@@ -77,8 +77,10 @@ class DivEngine {
   bool speedAB;
   bool endOfSong;
   bool consoleMode;
+  bool extValuePresent;
   int ticks, cycles, curRow, curOrder, remainingLoops, nextSpeed, clockDrift;
   int changeOrd, changePos, totalTicks, totalCmds, lastCmds, cmdsPerSecond;
+  unsigned char extValue;
   DivStatusView view;
   DivChannelState chan[17];
   DivAudioEngines audioEngine;
@@ -204,6 +206,12 @@ class DivEngine {
     // get current row
     int getRow();
 
+    // has ext value
+    bool hasExtValue();
+
+    // get ext value
+    unsigned char getExtValue();
+
     // is playing
     bool isPlaying();
 
@@ -273,6 +281,7 @@ class DivEngine {
       speedAB(false),
       endOfSong(false),
       consoleMode(false),
+      extValuePresent(false),
       ticks(0),
       cycles(0),
       curRow(0),
@@ -286,6 +295,7 @@ class DivEngine {
       totalCmds(0),
       lastCmds(0),
       cmdsPerSecond(0),
+      extValue(0),
       view(DIV_STATUS_NOTHING),
       audioEngine(DIV_AUDIO_SDL),
       bbInLen(0),

src/engine/playback.cpp

@@ -516,6 +516,8 @@ void DivEngine::processRow(int i, bool afterDelay) {
         break;
       case 0xee: // external command
         //printf("\x1b[1;36m%d: extern command %d\x1b[m\n",i,effectVal);
+        extValue=effectVal;
+        extValuePresent=true;
         break;
     }
   }