changed some calculator stuff idk

idk

docs/standard library docs/io.rs.md

@@ -0,0 +1,27 @@
+
+- provides structs and functions for input and output
+
+provided features:
+
+```rust
+print()        // prints a formatted string to the screen
+println!()     // print with a newline appended
+
+print_log!()   // prints a formatted log string in yellow
+println_log!() // print_log with newline appended
+
+printerr!()    // prints formatted error in yellow with appended newline, this is called when the OS panics.
+
+impl Screen {
+	pub fn terminal_mode();    // changes the display mode of the kernel to terminal mode, meaning text can be inputted line by line as commands.
+	pub fn application_mode(); // changes the display mode of the kernel to application mode, meaning applications are responsible for generating their own frames and rendering them.
+	pub fn switch();           // toggles the current display mode
+	pub fn clear();            // clears the screen
+}
+
+impl Stdin {
+	pub async fn readline() -> String;      // reads a line of input in terminal mode
+	pub async fn keystroke() -> char;       // waits for the user to enter a keystroke
+	pub fn try_keystroke() -> Option<char>; // immediately returns a keystroke if an unread one has been received by the kernel
+}
+```