diff --git a/src/engine/platform/msm6295.cpp b/src/engine/platform/msm6295.cpp
index f1d4e997..541dded6 100644
--- a/src/engine/platform/msm6295.cpp
+++ b/src/engine/platform/msm6295.cpp
@@ -352,6 +352,36 @@ void DivPlatformMSM6295::setFlags(unsigned int flags) {
     case 3:
       chipClock=4224000;
       break;
+    case 4:
+      chipClock=COLOR_NTSC;
+      break;
+    case 5:
+      chipClock=COLOR_NTSC/2.0;
+      break;
+    case 6:
+      chipClock=COLOR_NTSC*2.0/7.0;
+      break;
+    case 7:
+      chipClock=COLOR_NTSC/4.0;
+      break;
+    case 8:
+      chipClock=4000000/2;
+      break;
+    case 9:
+      chipClock=4224000/2;
+      break;
+    case 10:
+      chipClock=875000;
+      break;
+    case 11:
+      chipClock=937500;
+      break;
+    case 12:
+      chipClock=1500000;
+      break;
+    default:
+      chipClock=4000000/4;
+      break;
   }
   rate=chipClock/3;
   for (int i=0; i<4; i++) {
diff --git a/src/gui/sysConf.cpp b/src/gui/sysConf.cpp
index befa13ed..e9b44c86 100644
--- a/src/gui/sysConf.cpp
+++ b/src/gui/sysConf.cpp
@@ -394,6 +394,33 @@ void FurnaceGUI::drawSysConf(int chan, DivSystem type, unsigned int& flags, bool
       if (ImGui::RadioButton("4.224MHz",flags==3)) {
         copyOfFlags=3;
       }
+      if (ImGui::RadioButton("3.58MHz",flags==4)) {
+        copyOfFlags=4;
+      }
+      if (ImGui::RadioButton("1.79MHz",flags==5)) {
+        copyOfFlags=5;
+      }
+      if (ImGui::RadioButton("1.02MHz",flags==6)) {
+        copyOfFlags=6;
+      }
+      if (ImGui::RadioButton("0.89MHz",flags==7)) {
+        copyOfFlags=7;
+      }
+      if (ImGui::RadioButton("2MHz",flags==8)) {
+        copyOfFlags=8;
+      }
+      if (ImGui::RadioButton("2.112MHz",flags==9)) {
+        copyOfFlags=9;
+      }
+      if (ImGui::RadioButton("0.875MHz",flags==10)) {
+        copyOfFlags=10;
+      }
+      if (ImGui::RadioButton("0.9375MHz",flags==11)) {
+        copyOfFlags=11;
+      }
+      if (ImGui::RadioButton("1.5MHz",flags==12)) {
+        copyOfFlags=12;
+      }
       break;
     }
     case DIV_SYSTEM_GB: