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How can undefined opcodes ud0 and ud1 have parameters? How undefined were they?

IT · 2026-10-19 18:36

微软Old New Thing博客探讨x86架构中ud0、ud1两条未定义指令为何仍编码参数，并回顾其“未定义”程度的历史演变。

Source: devblogs.microsoft.com

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