diff --git a/src/engine/platform/k007232.cpp b/src/engine/platform/k007232.cpp
index 5e84a071..916a942b 100644
--- a/src/engine/platform/k007232.cpp
+++ b/src/engine/platform/k007232.cpp
@@ -57,6 +57,7 @@ inline void DivPlatformK007232::chWrite(unsigned char ch, unsigned int addr, uns
 void DivPlatformK007232::acquire(short* bufL, short* bufR, size_t start, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     if ((--delay)<=0) {
+      delay=MAX(0,delay);
       if (!writes.empty()) {
         QueuedWrite& w=writes.front();
         // write on-chip register
diff --git a/src/gui/debug.cpp b/src/gui/debug.cpp
index fb03363a..91e5bbbc 100644
--- a/src/gui/debug.cpp
+++ b/src/gui/debug.cpp
@@ -1129,7 +1129,7 @@ void putDispatchChan(void* data, int chanNum, int type) {
     case DIV_SYSTEM_K007232: {
       DivPlatformK007232::Channel* ch=(DivPlatformK007232::Channel*)data;
       ImGui::Text("> K007232");
-      ImGui::Text("* freq:");
+      ImGui::Text("* freq: %d",ch->freq);
       ImGui::Text(" - base: %d",ch->baseFreq);
       ImGui::Text(" - pitch: %d",ch->pitch);
       ImGui::Text(" - pitch2: %d",ch->pitch2);