Z80 implementations for one had a whole slew of undocumented instructions, alleg... | Hacker News

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DamonHD on June 25, 2017 | parent | context | favorite | on: Intel Skylake/Kaby Lake processors: broken hyper-t...

Z80 implementations for one had a whole slew of undocumented instructions, allegedly because they were buggy in some way.

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