Barebones Kernel Commit

Uses limine to boot off of a disk.
Outputs a character to the debug port.

zion/zion.cpp

@@ -0,0 +1,14 @@
+#include <stdint.h>
+
+#define COM1 0x3f8
+
+void outb(uint16_t port, uint8_t value) {
+  asm volatile("outb %0, %1" ::"a"(value), "Nd"(port));
+}
+
+extern "C" void zion() {
+  outb(COM1, 'a');
+
+  while (1)
+    ;
+}