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Remove old “Update” sections (#244)

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Most of these updates are quite old and thus distracting. Instead, we now have a “Recent Changes” box in the sidebar of the front page.
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Philipp Oppermann
2016-10-15 17:10:43 +02:00
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blog/post/09-catching-exceptions.md
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@@ -13,10 +13,6 @@ As always, the complete source code is on [Github]. Please file [issues] for any
[Github]: https://github.com/phil-opp/blog_os/tree/catching_exceptions
[issues]: https://github.com/phil-opp/blog_os/issues
**Update**: Due to a subtle [stack alignment bug], we no longer catch page faults in this post. Instead, we catch divide-by-zero errors.
[stack alignment bug]: https://github.com/phil-opp/blog_os/issues/184
## Exceptions
An exception signals that something is wrong with the current instruction. For example, the CPU issues an exception if the current instruction tries to divide by 0. When an exception occurs, the CPU interrupts its current work and immediately calls a specific exception handler function, depending on the exception type.