From 74b19460a4f2f26dcbea17477e56084b6867273d Mon Sep 17 00:00:00 2001
From: GlitchedCode922 <126592994+GlitchedCode922@users.noreply.github.com>
Date: Sat, 14 Feb 2026 18:10:19 +0200
Subject: [PATCH] Correct GDT entries for user descriptors

Shift user descriptors in GDT by 32 bits (like kernel descriptors).
---
 02_Architecture/04_GDT.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/02_Architecture/04_GDT.md b/02_Architecture/04_GDT.md
index 9f562884..398b9111 100644
--- a/02_Architecture/04_GDT.md
+++ b/02_Architecture/04_GDT.md
@@ -233,10 +233,10 @@ Most of this descriptor is unchanged, except for the type field. Bit 4 is cleare
 
 ```c
 uint64_t user_code = kernel_code | (3 << 13);
-gdt_entries[3] = user_code;
+gdt_entries[3] = user_code << 32;
 
 uint64_t user_data = kernel_data | (3 << 13);
-gdt_entries[4] = user_data;
+gdt_entries[4] = user_data << 32;
 ```
 
 A more complex example of a GDT is the one used by the stivale2 boot protocol: