Made OS display serialized images

DaniD3v · Oct 31, 2023 · 0bb13e7 · 0bb13e7
1 parent 932cd55
commit 0bb13e7
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Showing 3 changed files with 12 additions and 1 deletion.
diff --git a/os/.cargo/config.toml b/os/.cargo/config.toml
@@ -4,3 +4,6 @@ build-std = ["core", "compiler_builtins"]
 
 [build]
 target = "x86_64-unknown-vid_os.json"
+
+[target.'cfg(target_os = "none")']
+runner = "bootimage runner"
diff --git a/os/Cargo.toml b/os/Cargo.toml
@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+bootloader = "0.9.23" # TODO migrate to new version (new main signature or smth https://crates.io/crates/bootloader)
diff --git a/os/src/main.rs b/os/src/main.rs
@@ -1,10 +1,17 @@
 #![no_std]
 #![no_main]
 
+const VGA_BUFFER: *mut u8 = 0xb8000 as *mut u8;
+static IMAGE: &[u8; 4000] = include_bytes!("../../converter/examples/images/ser/incredible.bin");
+
 #[panic_handler]
 fn panic(_info: &core::panic::PanicInfo) -> ! { loop {} }
 
 #[no_mangle]
 pub extern "C" fn _start() -> ! {
-    loop {};
+    for (i, &byte) in IMAGE.iter().enumerate() {
+        unsafe { *VGA_BUFFER.offset(i as isize) = byte; }
+    }
+
+    loop {}
 }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -4,3 +4,4 @@ version = "0.1.0"
		edition = "2021"

		[dependencies]
		bootloader = "0.9.23" # TODO migrate to new version (new main signature or smth https://crates.io/crates/bootloader)