debug prints

src/arch/x86_64/gdt.rs

+use crate::println;
+
 use super::idt::DOUBLE_FAULT_IST;
 use spin::Lazy;
 use x86_64::{
@@ -13,6 +15,7 @@ use x86_64::{
 //
 
 pub fn init() {
+    println!("Initializing GDT");
     GDT.0.load();
 
     unsafe {

src/arch/x86_64/idt.rs

@@ -9,6 +9,7 @@ pub static DOUBLE_FAULT_IST: u16 = 1;
 //
 
 pub fn init() {
+    println!("Initializing IDT");
     IDT.load();
 }
 

src/arch/x86_64/limine/mod.rs

+use crate::println;
+
 use super::{gdt, idt};
 
 //
@@ -21,8 +23,10 @@ pub extern "C" fn _start() -> ! {
     gdt::init();
     idt::init();
 
+    println!("Re-enabling x86_64 interrupts");
     x86_64::instructions::interrupts::enable();
 
+    println!("Calling general kernel_main");
     crate::kernel_main()
 }
 

src/main.rs

@@ -43,7 +43,7 @@ pub static BOOTLOADER: Mutex<&'static str> = Mutex::new(KERNEL);
 //
 
 fn kernel_main() -> ! {
-    println!("Hello from {}", KERNEL.cyan());
+    println!("\n\nHello from {}", KERNEL.cyan());
     println!(" - {} was booted with {}", KERNEL.cyan(), BOOTLOADER.lock());
 
     // error handling test
@@ -53,9 +53,9 @@ fn kernel_main() -> ! {
     // }
 
     if let Some(mut fbo) = get_fbo() {
-        fbo.fill(240, 240, 40, 40, Color::RED);
-        fbo.fill(250, 250, 60, 40, Color::GREEN);
-        fbo.fill(205, 215, 80, 20, Color::BLUE);
+        fbo.fill(240, 340, 40, 40, Color::RED);
+        fbo.fill(250, 350, 60, 40, Color::GREEN);
+        fbo.fill(205, 315, 80, 20, Color::BLUE);
     }
 
     #[cfg(test)]