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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://fosstodon.org/users/gabrielesvelto/statuses/113907230887856925">Gabriele Svelto (gabrielesvelto@fosstodon.org)'s status on Wednesday, 29-Jan-2025 04:09:46 JST</a><a href="https://fosstodon.org/@gabrielesvelto" title="gabrielesvelto@fosstodon.org"><img src="https://gnusocial.jp/avatar/36442-48-20221122195808.webp" width="48" height="48" alt="Gabriele Svelto" style="position: absolute; left: 0; top: 0;">Gabriele Svelto</a></section><article><p>This article gave me something to think about: several undocumented instructions were discovered in modern CPUs, by fuzzing the instruction stream. It would be quite interesting to fuzz old CPUs too. Especially the 68000 family :)</p><p><a href="https://www.downtowndougbrown.com/2025/01/the-invalid-68030-instruction-that-accidentally-allowed-the-mac-classic-ii-to-successfully-boot-up/" rel="nofollow noreferrer">https://www.downtowndougbrown.com/2025/01/the-invalid-68030-instruction-that-accidentally-allowed-the-mac-classic-ii-to-successfully-boot-up/</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4466621#notice-8743733">In conversation</a><time datetime="2025-01-29T04:09:46+09:00" title="Wednesday, 29-Jan-2025 04:09:46 JST">about 4 months ago</time> <span>from <span><a href="https://fosstodon.org/@gabrielesvelto/113907230887856925" rel="external" title="Sent from fosstodon.org via ActivityPub">fosstodon.org</a></span></span><a href="https://fosstodon.org/@gabrielesvelto/113907230887856925">permalink</a><h4>Attachments</h4><ol><li><article><header><div>Domain not in remote thumbnail source whitelist: www.downtowndougbrown.com</div><h5><a href="https://www.downtowndougbrown.com/2025/01/the-invalid-68030-instruction-that-accidentally-allowed-the-mac-classic-ii-to-successfully-boot-up/">The invalid 68030 instruction that accidentally allowed the Mac Classic II to successfully boot up</a></h5><div> from <span>Doug Brown</span></div></header><div></div><footer></footer></article></li></ol></footer></blockquote>

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Gabriele Svelto (gabrielesvelto@fosstodon.org)'s status on Wednesday, 29-Jan-2025 04:09:46 JST Gabriele Svelto
This article gave me something to think about: several undocumented instructions were discovered in modern CPUs, by fuzzing the instruction stream. It would be quite interesting to fuzz old CPUs too. Especially the 68000 family :)
https://www.downtowndougbrown.com/2025/01/the-invalid-68030-instruction-that-accidentally-allowed-the-mac-classic-ii-to-successfully-boot-up/
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  The invalid 68030 instruction that accidentally allowed the Mac Classic II to successfully boot up
  from Doug Brown

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