diff --git a/libgambatte/src/video.cpp b/libgambatte/src/video.cpp
index 81f6b1e7c5..8ee04ca71e 100644
--- a/libgambatte/src/video.cpp
+++ b/libgambatte/src/video.cpp
@@ -291,11 +291,13 @@ bool LCD::vramReadable(unsigned long const cc) {
 }
 
 bool LCD::vramExactlyReadable(unsigned long const cc) {
-	bool vramAlreadyExactlyRead = vramHasBeenExactlyRead;
+	if (vramHasBeenExactlyRead) {
+		return false;
+	}
 	if ((cc + 2 + isDoubleSpeed() > m0TimeOfCurrentLine(cc)) && (cc + 2 + isDoubleSpeed() < m0TimeOfCurrentLine(cc) + 4)) {
 		vramHasBeenExactlyRead = true;
 	}
-	return !vramAlreadyExactlyRead && (cc + 2 + isDoubleSpeed() == m0TimeOfCurrentLine(cc));
+	return cc + 2 + isDoubleSpeed() == m0TimeOfCurrentLine(cc);
 }
 
 bool LCD::vramWritable(unsigned long const cc) {
diff --git a/output/dll/libgambatte.dll b/output/dll/libgambatte.dll
index 0b59bfa93c..dd6afb6089 100644
Binary files a/output/dll/libgambatte.dll and b/output/dll/libgambatte.dll differ