Better user programs with a special std. Sleep and exit are calling scheduler instead of wfi.

src/user.rs

@@ -1,15 +1,9 @@
 use core::time::Duration;
 
-use alloc::vec::Vec;
-use bffs::{io::Read, Fat32FileSystem};
-
-use crate::{
-    fs::Disk,
-    syscall::{sleep, write_int_temp, write_string_temp},
-};
+use shared::syscall::{sleep, write_int_temp, write_string_temp};
 
 #[repr(align(32))]
-struct Alignement([u8; 157]);
+struct Alignement([u8; include_bytes!("../user/test_pic/test_pic.mem").len()]);
 
 static PROG: Alignement = Alignement(*include_bytes!("../user/test_pic/test_pic.mem"));