michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-16 22:37:49 +00:00
Code Issues Projects Releases Wiki Activity

Display updated on for Entering Long Mode post

Browse Source
This commit is contained in:
Philipp Oppermann
2015-10-29 19:28:32 +01:00
parent 5dde1afc38
commit 99be56f9b8
2 changed files with 7 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
_posts/2015-08-25-entering-longmode.md
View File

@@ -3,6 +3,7 @@ layout: post
title: 'Entering Long Mode'
category: 'rust-os'
redirect_from: "/rust-os/2015/08/25/entering-longmode/"
updated: 2015-10-29 00:00:00 +0000
---
In the [previous post] we created a minimal multiboot kernel. It just prints `OK` and hangs. The goal is to extend it and call 64-bit [Rust] code. But the CPU is currently in [protected mode] and allows only 32-bit instructions and up to 4GiB memory. So we need to setup _Paging_ and switch to the 64-bit [long mode] first.