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| -rw-r--r-- | exercises/110_quiz9.zig | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/exercises/110_quiz9.zig b/exercises/110_quiz9.zig index 171a509..734b9dc 100644 --- a/exercises/110_quiz9.zig +++ b/exercises/110_quiz9.zig @@ -1,20 +1,20 @@ // ---------------------------------------------------------------------------- -// Toggling, Setting, and Clearing Bits +// Quiz Time: Toggling, Setting, and Clearing Bits // ---------------------------------------------------------------------------- // // Another exciting thing about Zig is its suitability for embedded // programming. Your Zig code doesn't have to remain on your laptop. You can // also deploy your code to microcontrollers! This means you can write Zig to // drive your next robot or greenhouse climate control system! Ready to enter -// the exciting world of embedded programming? This exercise is designed to -// give you a taste of what it's like to control registers in a -// microcontroller. Let's get started! +// the exciting world of embedded programming? This quiz is designed to test +// your knowledge of bit manipulationh in Zig while also giving you a taste of +// what it's like to control registers in a microcontroller. Let's get started! // // A common activity in microcontroller programming is setting and clearing // bits on input and output pins. This lets you control LEDs, sensors, motors // and more! In a previous exercise (097_bit_manipulation.zig) you learned how // to swap two bytes using the ^ (XOR - exclusive or) operator. In this -// exercise, we'll take a closer look at bit manipulation and how we can write +// quiz, we'll take a closer look at bit manipulation and how we can write // code that sets and clears specific bits as we would if we were programming // the pins on a real microcontroller. Included at the end of this exercise are // some helper functions that demonstrate how we might make our code a little @@ -47,8 +47,8 @@ // PORTB // // Drawing inspiration from this diagram, we'll use the pins for PORTB as our -// mental model for this exercise in bit manipulation. It should be noted that -// in the following examples we are using ordinary variables, one of which we +// mental model for this quiz on bit manipulation. It should be noted that +// in the following problems we are using ordinary variables, one of which we // have named PORTB, to simulate modifying the bits of real hardware registers. // But in actual microcontroller code, PORTB would be defined something like // this: @@ -57,7 +57,7 @@ // This lets the compiler know not to make any optimizations to PORTB so that // the IO pins are properly mapped to our code. // -// NOTE : To keep things simple, the following examples are given using type +// NOTE : To keep things simple, the following problems are given using type // u4, so applying the output to PORTB would only affect the lower four pins // PB0..PB3. Of course, there is nothing to prevent you from swapping the u4 // with a u8 so you can control all 8 of PORTB's IO pins. |