R rep lodsb personal blog

Intel 286 secrets: ICE mode and F1 0F 04

rep-lodsb.mataroa.blog 7 min read

With some recent interest in undocumented opcodes and microcode on modern Intel chips, I decided to do a proper writeup on what I found out while researching and playing around with the venerable 80286 ("Beige Unlock"?).

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History & Retro ComputingSystems & Performance2022

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