initial_state.S stopped working...

2015-10-06 12:27:24 +02:00
parent 61f0ad8dda
commit b9b4da0d1e
11 changed files with 139 additions and 56 deletions
--- a/protected_mode.S
+++ b/protected_mode.S
@@ -1,6 +1,16 @@
 /*
 # Protected mode

+Major changes:
+
+-   BIOS cannot be used anymore
+
+-   GDT takes effect immediately so we *have* to deal with it now,
+    and we will later turn on paging
+
+-   we have to encode instructions differently.
+    Note that in 16-bit 32-bit instructions were encodable, but with a prefix.
+
 TODO get working.

 - http://wiki.osdev.org/Journey_To_The_Protected_Land