effective volume to audio widget added

fixed parser return value for "$a"

docs/debugger.html

@@ -806,11 +806,13 @@ reflecting this result.</p>
 <br>
 <h2><u>(D)</u> Audio Tab</h2>
 
-<p>This tab lets you view the contents of the TIA audio registers. This tab
+<p>This tab lets you view the contents of the TIA audio registers and the effective
-will grow some features in a future release.</p>
+volume resulting from the two channel volumes.</p>
 
 <p><img src="graphics/debugger_audiotab.png"></p>
 
+<p>This tab will grow some features in a future release.</p>
+
 
 <!-- /////////////////////////////////////////////////////////////////////////  -->
 <br>

src/debugger/DebuggerParser.cxx

@@ -234,7 +234,7 @@ int DebuggerParser::decipher_arg(const string& str)
 
   // Special cases (registers):
   const CpuState& state = static_cast<const CpuState&>(debugger.cpuDebug().getState());
-  if(arg == "a") result = state.A;
+  if(arg == "a" && str != "$a") result = state.A;
   else if(arg == "x") result = state.X;
   else if(arg == "y") result = state.Y;
   else if(arg == "p") result = state.PS;

src/debugger/gui/AudioWidget.cxx

@@ -22,6 +22,8 @@
 #include "Debugger.hxx"
 #include "TIADebug.hxx"
 #include "Widget.hxx"
+#include "Base.hxx"
+using Common::Base;
 
 #include "AudioWidget.hxx"
 
@@ -50,7 +52,7 @@ AudioWidget::AudioWidget(GuiObject* boss, const GUI::Font& lfont,
 
   for(int col = 0; col < 2; ++col)
   {
-    new StaticTextWidget(boss, lfont, xpos + col * myAudF->colWidth() + (int)(myAudF->colWidth() / 2.5),
+    new StaticTextWidget(boss, lfont, xpos + col * myAudF->colWidth() + (int)(myAudF->colWidth() / 2.75),
                          ypos - lineHeight, fontWidth, fontHeight,
                          Common::Base::toString(col, Common::Base::F_16_1),
                          kTextAlignLeft);
@@ -61,8 +63,8 @@ AudioWidget::AudioWidget(GuiObject* boss, const GUI::Font& lfont,
   new StaticTextWidget(boss, lfont, xpos, ypos+2, lwidth, fontHeight,
                        "AUDC", kTextAlignLeft);
   xpos += lwidth;
-  myAudC = new DataGridWidget(boss, nfont, xpos, ypos,
+  myAudC = new DataGridWidget(boss, nfont, xpos + (int)(myAudF->colWidth() / 2.75), ypos,
-                              2, 1, 2, 4, Common::Base::F_16);
+                              2, 1, 1, 4, Common::Base::F_16_1);
   myAudC->setTarget(this);
   myAudC->setID(kAUDCID);
   addFocusWidget(myAudC);
@@ -72,11 +74,14 @@ AudioWidget::AudioWidget(GuiObject* boss, const GUI::Font& lfont,
   new StaticTextWidget(boss, lfont, xpos, ypos+2, lwidth, fontHeight,
                        "AUDV", kTextAlignLeft);
   xpos += lwidth;
-  myAudV = new DataGridWidget(boss, nfont, xpos, ypos,
+  myAudV = new DataGridWidget(boss, nfont, xpos + (int)(myAudF->colWidth() / 2.75), ypos,
-                              2, 1, 2, 4, Common::Base::F_16);
+                              2, 1, 1, 4, Common::Base::F_16_1);
   myAudV->setTarget(this);
   myAudV->setID(kAUDVID);
   addFocusWidget(myAudV);
+
+  myAudEffV = new StaticTextWidget(boss, lfont, myAudV->getRight() + fontWidth, myAudV->getTop() + 2,
+                                   "100% (eff. volume)");
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -120,6 +125,17 @@ void AudioWidget::loadConfig()
     changed.push_back(state.aud[i] != oldstate.aud[i]);
   }
   myAudV->setList(alist, vlist, changed);
+
+  handleVolume();
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void AudioWidget::handleVolume()
+{
+  stringstream s;
+
+  s << getEffectiveVolume() << "% (eff. volume)";
+  myAudEffV->setLabel(s.str());
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -202,4 +218,18 @@ void AudioWidget::changeVolumeRegs()
       instance().debugger().tiaDebug().audV1(value);
       break;
   }
+  handleVolume();
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+uInt32 AudioWidget::getEffectiveVolume()
+{
+  const int EFF_VOL[] = {
+     0,  6, 13, 18, 24, 29, 33, 38,
+    42, 46, 50, 54, 57, 60, 64, 67,
+    70, 72, 75, 78, 80, 82, 85, 87,
+    89, 91, 93, 95, 97, 98,100};
+
+  return EFF_VOL[instance().debugger().tiaDebug().audV0() +
+    instance().debugger().tiaDebug().audV1()];
 }

src/debugger/gui/AudioWidget.hxx

@@ -43,6 +43,7 @@ class AudioWidget : public Widget, public CommandSender
     DataGridWidget* myAudF;
     DataGridWidget* myAudC;
     DataGridWidget* myAudV;
+    StaticTextWidget* myAudEffV;
 
     // Audio channels
     enum
@@ -58,6 +59,9 @@ class AudioWidget : public Widget, public CommandSender
     void handleCommand(CommandSender* sender, int cmd, int data, int id) override;
     void loadConfig() override;
 
+    void handleVolume();
+    uInt32 getEffectiveVolume();
+
     // Following constructors and assignment operators not supported
     AudioWidget() = delete;
     AudioWidget(const AudioWidget&) = delete;