Add splash screen

.gitignore

@@ -1,5 +1,6 @@
 /build
 /target
 bx_enh_dbg.ini
+out.txt
 
 .idea

bootloader/src/main.rs

@@ -6,6 +6,7 @@ mod print;
 
 mod disk;
 mod gdt;
+mod splash;
 
 use core::arch::asm;
 use core::panic::PanicInfo;
@@ -31,6 +32,13 @@ fn panic(info: &PanicInfo) -> ! {
 #[no_mangle]
 #[link_section = ".start"]
 pub extern "C" fn _start() -> ! {
+ clear!();
+
+ splash::splash();
+
+ wait_for_key();
+ clear!();
+
  //unreal mode is needed because diskreader needs to copy from buffer to protected mode memory
  println!("[!] Switching to 16bit unreal mode...");
  unreal_mode();
@@ -133,3 +141,9 @@ fn unreal_mode() {
  asm!("mov ss, {0:x}", in(reg) ss);
  }
 }
+
+fn wait_for_key() {
+ unsafe {
+ asm!("int 0x16", in("ah") 0x00 as u8);
+ }
+}

bootloader/src/print.rs

@@ -45,8 +45,7 @@ impl Printer {
  }
 
  //set bios video mode to clear the screen
- #[allow(dead_code)]
- pub fn clear() {
+ pub fn clear(&self) {
  unsafe {
  asm!(
  "int 0x10",
@@ -56,6 +55,14 @@ impl Printer {
  }
 }
 
+//macro for clear!
+#[macro_export]
+macro_rules! clear {
+ () => {
+ $crate::print::_clear()
+ };
+}
+
 //macro for print!
 #[macro_export]
 macro_rules! print {
@@ -76,6 +83,12 @@ pub fn _print(args: fmt::Arguments) {
  }
 }
 
+pub fn _clear() {
+ unsafe {
+ PRINTER.clear();
+ }
+}
+
 //bios interrupt to print to the screen
 /*pub fn print(message: &str) {
  unsafe {

bootloader/src/splash.rs

@@ -0,0 +1,39 @@
+pub const SPLASH: &'static str = 
+"▄ ▄ ▄ 
+ ██▄ ▄██ 
+ █ ▀█▄ ▄█▀▐█ 
+ █ ▀▄ ▄▀ ▐█ 
+ █ ▀█ █▀ ▐█ 
+ █ ██▄ ▀█▄ ▄█▀ ▄█▌ ▐█ 
+ █ █▌▀█▄ ▀██ ██▀ ▄█▀▐▌ ▐█ 
+ █ █▌ ▀▄ ▄▀ ▐▌ ▐█ 
+ █ ▐██ ▄▀ ██ ▀▄ ██▌▐█ 
+ █ █▀ ▐▌ ▀█ ▐█ 
+ █ ▄█▀ ▐▌ ▀█▄ ▐█ 
+ █▄█▀ ▐▌ ▀█▄█ 
+ █▀ ▐▌ ▀█ 
+ ▐▌ 
+ ▀█▄▄▄▄▄▄▄▄▄▄ ▐▌ ▄▄▄▄▄▄▄▄▄▄█▀ 
+ ▐▌ 
+ ▐▌ 
+ ▄▄ ▐▌ ▄▄ 
+ ▀█▄▄▄▄▄▄▄▄▄▄▄▄▄▄██ ▄▄▄▄▄▄▄▄▄▄ ██▄▄▄▄▄▄▄▄▄▄▄▄▄▄█▀ 
+ ▀██████▀ 
+ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀██ ▀██▀ ██▀▀▀▀▀▀▀▀▀▀▀▀▀▀ 
+ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▀▀▀▀▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 
+ 
+ Press any key to start...";
+
+pub fn splash() {
+ for c in SPLASH.chars() {
+ match c {
+ '▀' => print!("{}", 0xdf as char),
+ '▐' => print!("{}", 0xde as char),
+ '▌' => print!("{}", 0xdd as char),
+ '▄' => print!("{}", 0xdc as char),
+ '█' => print!("{}", 0xdb as char),
+ '\n' => {},
+ _ => print!("{}", c),
+ }
+ }
+}

kernel/src/interrupts/timer.rs

@@ -60,7 +60,7 @@ pub extern "C" fn timer_handler(esp: u32) -> u32 {
  let slot = TASK_MANAGER.get_current_slot();
  let target = APP_TARGET + (slot as u32 * APP_SIZE);
 
- //map table 8 (0x02000000) to the address where the executable is loaded 
+ //map table 8 (0x02000000) to the address where the executable is loaded
  TABLES[8].set(target);
  PAGING.set_table(8, &TABLES[8]);
 

kernel/src/shell/shell.rs

@@ -197,10 +197,10 @@ impl Shell {
  let slot = TASK_MANAGER.get_free_slot();
  let target = APP_TARGET + (slot as u32 * APP_SIZE);
 
- //map table 8 (0x02000000) to the address where the executable is loaded 
+ //map table 8 (0x02000000) to the address where the executable is loaded
  TABLES[8].set(target);
  PAGING.set_table(8, &TABLES[8]);
- 
+
  FAT.read_file_to_target(&entry, target as *mut u32);
 
  unsafe {