BREAKING: bootloader refacto and loading star

Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>

Makefile

@@ -4,7 +4,7 @@ INSTALL_ROOT = iso
 ABS_INSTALL = $(abspath $(INSTALL_ROOT))
 
 LINKER_SCRIPT = src/linker.ld
-BOOT_OBJS = src/multiboot.o src/boot.o
+BOOT_OBJS = src/boot/multiboot.o src/boot/boot.o
 LIB_JULIOS = target/x86_64-julios/debug/libjulios.a
 
 GRUB_CFG = grub/grub.cfg

src/lib.rs

@@ -9,11 +9,14 @@ fn panic(_info: &core::panic::PanicInfo) -> !
 
 static HELLO: &[u8] = b"Welcome to the JuliOS";
 
+static STAR: &[u8] = b"|/-\\";
+
 #[no_mangle]
 pub extern "C" fn julios_main() -> !
 {
     let vga_buffer: *mut u8 = 0xb8000 as *mut u8;
 
+    let mut k: usize = 0;
     for (i, &byte) in HELLO.iter().enumerate()
     {
         unsafe
@@ -21,7 +24,18 @@ pub extern "C" fn julios_main() -> !
             *vga_buffer.offset(i as isize * 2) = byte;
             *vga_buffer.offset(i as isize * 2 + 1) = 0xb;
         }
+        k = i * 2 + 2;
     }
 
-    loop {}
+    let mut j: usize = 0;
+    loop
+    {
+        unsafe
+        {
+            *vga_buffer.offset(k as isize) = STAR[j];
+            *vga_buffer.offset(k as isize + 1) = 0xb;
+            j += 1;
+            j %= 4;
+        }
+    }
 }