Replace white with terminal green and update frontpage README.md

README.md

@@ -1,4 +1,17 @@
-# chip-r
-- A CHIP-8 emulator built with rust
-- Based on https://github.com/aquova/chip8-book
-- Test ROMs: https://www.zophar.net/pdroms/chip8/chip-8-games-pack.html
+# chip-r 🎱
+> 
+_"[...] maybe the games don’t have to be more complex, they need to be simple and pleasing. That’s where the sweet spot is!"_ - Allan Alcorn
+
+![](https://raw.githubusercontent.com/paulopacitti/chip-r/main/docs/screenshot.png)
+
+- A simple (with hidden bugs 👀) [CHIP-8](https://en.wikipedia.org/wiki/CHIP-8) emulator built with **rust**.
+- Tested on `macos`, but since it uses `sdl2` it can be compiled to multiple targets.
+
+### Usage
+ - Compile `core`: `cd core && cargo build`
+ - Compile and **run** the emulator: `cd frontend && cargo run <path-to-rom>`
+
+ ### Resources
+ - I've built this to learn about emulation development and learn more about `rust`. Here's the guide that helped me through this journey: https://github.com/aquova/chip8-book
+ - `CHIP-8` op codes cheatsheet: http://devernay.free.fr/hacks/chip8/C8TECH10.HTM
+ - Some `CHIP-8` ROMs are available here: https://www.zophar.net/pdroms/chip8/chip-8-games-pack.html

frontend/src/main.rs

@@ -88,7 +88,7 @@ fn draw_screen(emu: &Emulator, canvas: &mut Canvas<Window>) {
     canvas.clear();
 
     let screen_buffer = emu.get_display();
-    canvas.set_draw_color(Color::RGB(255, 255, 255));
+    canvas.set_draw_color(Color::RGB(0, 255, 0));
     for (i, pixel) in screen_buffer.iter().enumerate() {
         if *pixel {
             // Convert our 1D array's index into a 2D (x,y) position