shithub: cstory

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redo how we maintain frame limit

this greatly reduces our time spent in npe_nanosec

--- a/src/Draw.cpp

+++ b/src/Draw.cpp

@@ -64,19 +64,20 @@

 	// TODO - Not the original variable names

 	static unsigned long timePrev;

 	static unsigned long timeNow;

+	long x;

-	while (TRUE)

-	{

-		if (!SystemTask())

-			return FALSE;

+	if (!SystemTask())

+		return FALSE;

-		// Framerate limiter

-		timeNow = Backend_GetTicks();

+	// Framerate limiter

+	timeNow = Backend_GetTicks();

-		if (timeNow >= timePrev + 20)

-			break;

+	x = timeNow - (long)(timePrev + 20);

-		Backend_Delay(1);

+	// Running fast

+	if (x < 0){

+		x *= -1;

+		Backend_Delay(x);

 	}

 	if (timeNow >= timePrev + 100)