Exercise B

examples/rtt_timing.rs

@@ -78,19 +78,19 @@ fn timed_loop() -> (u32, u32) {
 // B.1) What is the cycle count for the loop?
 // > cargo run --example rtt_timing --release
 //
-// [Your answer here]
+// [903726927 - 903719926 = 7001]
 //
 // B.2) How many cycles per iteration?
 //
-// [Your answer here]
+// [7001/1000 = 7]
 //
 // What is the speedup (A/B)?
 //
-// [Your answer here]
+// [A/B = 4790/7 = 684 times]
 //
 // Why do you think it differs that much?
 //
-// [Your answer here]
+// [It removes some unnessesary code in the for loop which is inside the timed_loop().]
 //
 // ------------------------------------------------------------------------
 // In the loop there is just a single assembly instruction (nop).