Kernel panic

kernel/panic.cpp

@@ -0,0 +1,83 @@
+#include "panic.h"
+
+#include <lib/stdint.h>
+#include <lib/std/stdlib.h>
+#include <lib/std/string.h>
+
+#include <kernel/drivers/terminal/terminal.h>
+
+void PanicKernel(char code, char* why, char* where, char* what) {
+    if (why == "") {
+        switch (code) {
+            case 0x00:
+                why = "Self triggered panic";
+                break;
+
+            default:
+                why = "Uknown Error";
+                break;
+        }
+    }
+
+    ResetTermColours();
+    HideCursor();
+    Cls();
+    
+    SetBGColour(VGA_RED);
+    for (uint8_t i = 0; i < TERMINAL_WIDTH; i++)
+        Puts(' ');
+
+    SetCursorPosition(34, 0);
+    Write("KERNEL PANIC");
+
+    ResetTermColours();
+    SetFGColour(VGA_DARK_GREY);
+    SetCursorPosition(1, 3);
+    Write("OOPSIE WOOPSIE! WE MADE A FUCKIE WUCKIE!! A WIDDLE FUCKO BOINGO! \n THE CODE MONKEYS AT HEADQUARTERS ARE WORKING VEWWY HAWD TO FIX THIS!");
+
+    ResetTermColours();
+    SetCursorPosition(1, 6);
+    Write("EXCEPTION: ");
+    Write(why);
+    Puts(' ');
+    Write(" (Error code 0x");
+    Write(itohx(code));
+    Puts(')');
+    Nline(); Nline();
+
+    SetFGColour(VGA_GREY);
+    Write(" at: ");
+    Write(where);
+    Puts(' ');
+
+    bool seenBracket = false;
+    for(uint32_t i = 0; i < strlen(what); i++) {
+        if (what[i] == '(')
+            seenBracket = true;
+
+        if (GetCursorPosition().x > 60) {
+            Write(" ...");
+            break;
+        }
+
+        if (!seenBracket) {
+            SetFGColour(VGA_YELLOW);
+        } else {
+            SetFGColour(VGA_GREY);
+        }
+        Puts(what[i]);
+    }
+
+
+    SetCursorPosition(0, TERMINAL_HEIGHT);
+    SetBGColour(VGA_GREY);
+    for (uint8_t i = 0; i < TERMINAL_WIDTH; i++)
+        Puts(' ');
+
+    SetFGColour(VGA_BLACK);
+    SetCursorPosition(1, TERMINAL_HEIGHT);
+    Write("Error Code: 0x");
+    Write(itohx(code));
+
+    asm("cli"); // Clear interrupt bit / dissable interrupts
+}