Why do we need ud2 when int 6 is right there?

· Raymond Chen · Oct. 20, 2026, 6:01 a.m.
Old New Thing Code programming software development Interrupt Handling ud2 instruction
Summary
This blog post discusses the differences between two types of interrupts in programming: `ud2` and `int 6`. It examines why both exist despite `int 6` being readily available, emphasizing the nuances of their usage in software development contexts.
Read full post on devblogs.microsoft.com →
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