From 1f57e99720c4bc5e3e27a88ff469cef43c202a43 Mon Sep 17 00:00:00 2001
From: Aleksa Vučković <aleksav013@gmail.com>
Date: Wed, 29 Jun 2022 01:52:48 +0200
Subject: HigherHalf

---
 src/as/paging.s | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

(limited to 'src/as/paging.s')

diff --git a/src/as/paging.s b/src/as/paging.s
index e1cf42a..c3a9a0d 100644
--- a/src/as/paging.s
+++ b/src/as/paging.s
@@ -1,14 +1,16 @@
+.text
+
 .global loadPageDirectory
 loadPageDirectory:
     push %ebp
-    mov %esp, %ebp
-    mov 8(%esp), %eax
-    mov %eax, %cr3
+    movl %esp, %ebp
+    movl 8(%esp), %eax
+    subl $0xC0000000, %eax
+    movl %eax, %cr3
     mov %ebp, %esp
     pop %ebp
     ret
 
-.text
 .global enablePaging
 enablePaging:
     push %ebp
@@ -19,3 +21,13 @@ enablePaging:
     mov %ebp, %esp
     pop %ebp
     ret
+
+.global flushPaging
+flushPaging:
+    push %ebp
+    mov %esp, %ebp
+	movl %cr3, %ecx
+	movl %ecx, %cr3
+    mov %ebp, %esp
+    pop %ebp
+    ret
-- 
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