From a1483ad6e16872096cf512520e2fed488d725fe8 Mon Sep 17 00:00:00 2001
From: husky <husky@gaycatboy.sex>
Date: Tue, 19 Apr 2022 17:39:17 -0700
Subject: [PATCH] started work on the IDT

---
 src/internals/mod.rs | 50 ++++++++++++++++++++++++++++++++++++++++++++
 src/main.rs          | 27 +++++++-----------------
 2 files changed, 57 insertions(+), 20 deletions(-)

diff --git a/src/internals/mod.rs b/src/internals/mod.rs
index f8b5fce..941ed87 100644
--- a/src/internals/mod.rs
+++ b/src/internals/mod.rs
@@ -1,4 +1,54 @@
 pub mod WhyDoTheyCallItOvenWhenYouOfInTheColdFoodOfOutHotEatTheFood {
+    use core::marker::PhantomData;
+
+    #[derive(Clone, Copy)]
+    pub struct Point {
+        pub x: i32,
+        pub y: i32,
+    }
+
+    #[derive(Clone, Copy)]
+    pub struct Colour {
+        pub r: u8,
+        pub g: u8,
+        pub b: u8,
+    }
+
+    // colours
+    pub const MICROSOFT_BLUE: Colour = Colour{r:30,g:129,b:176};
+    pub const COMMUNIST_RED: Colour = Colour{r:245,g:77,b:30};
+    pub const CUM_WHITE: Colour = Colour{r:255,g:255,b:255};
+
+    pub struct IDTEntry<F> {
+        based_offset: u16,
+        code_selector: u16,
+        ist_offset_wastes_6_bits: u8,
+        attributes: u8,
+        mid_offset: u16,
+        offset_popping_off: u32,
+        what: PhantomData<F>
+    }
+
+    pub struct InterruptDescriptorTable {
+        pub divide_error: IDTEntry<ErrorHandler>,
+        pub debug: IDTEntry<ErrorHandler>,
+        pub dream_mask_sus_version: IDTEntry<ErrorHandler>, // non-maskable interrupt
+        pub breakpoint: IDTEntry<ErrorHandler>,
+        pub into_detected_overflow: IDTEntry<ErrorHandler>,
+        pub in_the_fortnite_storm: IDTEntry<ErrorHandler>, // bound range exceeded
+        pub owo_whats_this: IDTEntry<ErrorHandler>, // invalid opcode
+        pub device_not_available: IDTEntry<ErrorHandler>,
+        pub fucky_wucky_twice: IDTEntry<ErrorHandler>, // double fault
+        we_are_all_about_backwards_compatibility: IDTEntry<ErrorHandler>, // coprocessor segment overrun
+        pub invalid_tss: IDTEntry<ErrorHandler>,
+        pub segment_not_present: IDTEntry<ErrorHandler>,
+        pub stack_segment_fault: IDTEntry<ErrorHandler>,
+        pub uh_oh_we_gotta_hacker_here: IDTEntry<ErrorHandler>, // general protection fault
+
+    }
+
+    pub struct ErrorHandler(());
+
     pub enum ErrorKind {
         HardwareFuckUp,
     }
diff --git a/src/main.rs b/src/main.rs
index dc53459..6fa17cb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,6 +4,7 @@
 use bootloader::{entry_point, BootInfo, boot_info};
 use core::panic::PanicInfo;
 use bootloader::boot_info::{FrameBuffer, FrameBufferInfo, PixelFormat};
+use crate::internals::WhyDoTheyCallItOvenWhenYouOfInTheColdFoodOfOutHotEatTheFood::*;
 use crate::serial::potential_serial_ports;
 
 mod font;
@@ -11,20 +12,6 @@ mod serial;
 mod internals;
 
 
-#[derive(Clone, Copy)]
-struct Point {
-    x: i32,
-    y: i32,
-}
-
-#[derive(Clone, Copy)]
-struct Colour {
-    r: u8,
-    g: u8,
-    b: u8,
-}
-
-
 
 const RAINBOW : [Colour; 6] = [Colour{r:255,g:0,b:0}, Colour{r:255,g:127,b:0}, Colour{r:255,g:255,b:0}, Colour{r:0,g:255,b:0}, Colour{r:0,g:255,b:255}, Colour{r:0,g:0,b:255}];
 
@@ -32,11 +19,11 @@ const RAINBOW : [Colour; 6] = [Colour{r:255,g:0,b:0}, Colour{r:255,g:127,b:0}, C
 #[panic_handler]
 fn panic(_info: &PanicInfo) -> ! { loop {} }
 
-fn KernelPanic(msg: &str, fb: &mut FrameBuffer) {
+fn KernelPanic(msg: KernelError, fb: &mut FrameBuffer) {
     // cover the screen in red
     for y in 0..fb.info().vertical_resolution {
         for x in 0..fb.info().horizontal_resolution {
-            put_pixel(x, y, Colour{r:255,g:0,b:0}, fb);
+            put_pixel(x, y, COMMUNIST_RED, fb);
         }
     }
 }
@@ -171,17 +158,17 @@ fn main(boot_info: &'static mut BootInfo) -> ! {
 
         //draw_string(20,20, "),:\n\n\n\nuh oh! windows error! your computer is not compatible with windows 12\n\ncontact billgate@realmicrosoft.com to fix this issue!", Colour { r: 255, g: 255, b: 255}, framebuffer);
 
-        draw_horizcentre_string(((fb_height/2)-4)-16, "welcome to windows 12! here is info:", Colour { r: 255, g: 255, b: 255 }, framebuffer);
+        draw_horizcentre_string(((fb_height/2)-4)-16, "welcome to windows 12! here is info:", CUM_WHITE, framebuffer);
 
         // time for some funny com port stuff
         let serial_ports = serial::init_serial();
-        draw_horizcentre_string(((fb_height/2)-4)-8, "serial ports:", Colour { r: 255, g: 255, b: 255 }, framebuffer);
+        draw_horizcentre_string(((fb_height/2)-4)-8, "serial ports:", CUM_WHITE, framebuffer);
 
         for port in 0..serial_ports.ports_enabled.len() {
             if serial_ports.ports_enabled[port] {
-                draw_horizcentre_string(((fb_height/2)-4)+(port as usize*8), serial_ports.ports[port].base.to_string(), Colour { r: 255, g: 255, b: 255 }, framebuffer);
+                draw_horizcentre_string(((fb_height/2)-4)+(port as usize*8), serial_ports.ports[port].base.to_string(), CUM_WHITE, framebuffer);
             } else { // draw in grey
-                draw_horizcentre_string(((fb_height/2)-4)+(port as usize*8), serial_ports.ports[port].base.to_string(), Colour { r: 255, g: 0, b: 0 }, framebuffer);
+                draw_horizcentre_string(((fb_height/2)-4)+(port as usize*8), serial_ports.ports[port].base.to_string(), COMMUNIST_RED, framebuffer);
             }
         }