first commit

sys/kern/main.c

@@ -0,0 +1,16 @@
+#include <stddef.h>
+
+void kernel_main(void) {
+    volatile char *video = (volatile char*) 0xB8000;
+
+    const char *msg = "LiteOS kernel started";
+
+    for (size_t i = 0; msg[i] != '\0'; i++) {
+        video[i * 2] = msg[i];
+        video[i * 2 + 1] = 0x07; // світло-сірий текст
+    }
+
+    while (1) {
+        __asm__("hlt");
+    }
+}