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Philipp Oppermann
2015-11-15 11:58:34 +01:00
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posts/2015-11-15-allocating-frames.md
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@@ -5,6 +5,10 @@ title: 'Allocating Frames'
In this post we create an allocator that provides free physical frames for a future paging module. To get the required information about available and used memory we use the Multiboot information structure. Additionally, we improve the `panic` handler to print the corresponding message and source line.
The full source code is available on [Github][source repo]. Feel free to open issues there if you have any problems or improvements. You can also leave a comment at the bottom.
[source repo]: https://github.com/phil-opp/blog_os/tree/allocating_frames
## Preparation
We still have a really tiny stack of 64 bytes, which won't suffice for this post. So we will increase it to 4096 (one page) in `boot.asm`: