waiter waiter more comments please

1 files changed, 5 insertions, 1 deletions

diff --git a/nes/nes.go b/nes/nes.go
index 0f2a754..7f36b1a 100644
--- a/nes/nes.go
+++ b/nes/nes.go
@@ -27,7 +27,11 @@ func (n *Console) Step() int {
 }
 
 func (n *Console) StepFrame() {
-	const cyclesPerFrame = 29780 // 29780 ~ 1789773 / 60.1
+	// 29780 is roughly one frame:
+	// ~ 1789773 cycles per sec
+	// ~ 60.1 fps
+	// 1789773 / 60.1 = 29779.916...
+	const cyclesPerFrame = 29780
 	for done := 0; done < cyclesPerFrame; {
 		done += n.Step()
 	}