Running our first game - Writing NES Emulator in Rust

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Top Highlights

• compute game state

• render game state to a screen

• read input from a user

• callback that will be executed before every opcode interpretation cycle

• rust-sdl2

• create a texture that would be used for rendering

• Handling user input

• transform the CPU screen map into 3 bytes

• don't want to force updating the SDL canvas if the screen state hasn't changed

• keep track of the screen state by creating a temp buffer

• Only in the case of screen changes, we would update SDL canvas.