From 29e28bc9c67378d0d9a7174dec6a0b541fb7f4d5 Mon Sep 17 00:00:00 2001
From: Tianhao Wang <shrik3@riseup.net>
Date: Fri, 10 Mar 2023 19:26:31 +0100
Subject: a minimal working demo on bare metal

---
 src/lib.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/lib.rs

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..767e547
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,23 @@
+#![no_std]
+#![no_main]
+mod arch;
+// use core::panic::PanicInfo;
+
+static HELLO: &[u8] = b"Hello World!";
+
+// #[panic_handler]
+// fn panic(_info: &PanicInfo) -> ! {
+//
+//     loop {}
+// }
+
+#[no_mangle]
+pub extern "C" fn _entry() -> ! {
+    let vga_buffer = 0xb8000 as *mut u8;
+
+    unsafe {
+        *vga_buffer.offset(10 as isize * 2) = 'X' as u8;
+        *vga_buffer.offset(10 as isize * 2 + 1) = 0xb;
+    }
+    loop {}
+}
-- 
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