diff --git a/UI/JitCompareScreen.cpp b/UI/JitCompareScreen.cpp
index 73b18543e4..3d94797ad6 100644
--- a/UI/JitCompareScreen.cpp
+++ b/UI/JitCompareScreen.cpp
@@ -69,7 +69,7 @@ void JitCompareScreen::UpdateDisasm() {
 	}
 
 	char temp[256];
-	snprintf(temp, sizeof(temp), "%i/%i", currentBlock_, blockCacheDebug->GetNumBlocks());
+	snprintf(temp, sizeof(temp), "%d/%d", currentBlock_, blockCacheDebug->GetNumBlocks());
 	blockName_->SetText(temp);
 
 	if (currentBlock_ < 0 || !blockCacheDebug || currentBlock_ >= blockCacheDebug->GetNumBlocks()) {
diff --git a/UI/JitCompareScreen.h b/UI/JitCompareScreen.h
index 027f3e7bb6..ab92ef7c33 100644
--- a/UI/JitCompareScreen.h
+++ b/UI/JitCompareScreen.h
@@ -23,7 +23,14 @@ private:
 	UI::EventReturn OnAddressChange(UI::EventParams &e);
 	UI::EventReturn OnShowStats(UI::EventParams &e);
 
-	int currentBlock_ = -1;
+	// To switch, change the below things and call RecreateViews();
+	enum ViewMode {
+		BLOCK_LIST,
+		DISASM,
+	};
+	ViewMode viewMode_ = DISASM;
+	int currentBlock_ = -1;  // For DISASM mode
+	std::vector<int> blockList_;  // for BLOCK_LIST mode
 
 	UI::TextView *blockName_;
 	UI::TextEdit *blockAddr_;