initial commit

src/platform/amd64/impl.zig

@@ -0,0 +1,16 @@
+const entry = @import("entry.zig");
+
+pub const first_init = entry.first_init;
+
+pub fn devices_init() void {}
+
+pub fn debug_write(c: u8) void {
+    // Write to debugcon
+    asm volatile ("outb %[c], %[port]"
+        :
+        : [c] "{al}" (c),
+          [port] "N{dx}" (@as(u16, 0xe9)),
+    );
+}
+
+pub fn arm_timer(_: u64) void {}