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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mastodon.social/users/cr1901/statuses/116592934096828040">William D. Jones (cr1901@mastodon.social)'s status on Monday, 18-May-2026 11:03:06 JST</a><a href="https://mastodon.social/@cr1901" title="cr1901@mastodon.social"><img src="https://gnusocial.jp/avatar/231824-48-20240113175040.webp" width="48" height="48" alt="William D. Jones" style="position: absolute; left: 0; top: 0;">William D. Jones</a><div><a href="https://mastodon.social/@cr1901/116592681712572521" rel="in-reply-to">in reply to</a></div></section><article><p>Also randomly reminded that there was a 6502 assembler that fit into 2 kilobytes by first turning the assembled program into instructions for a VM. The VM then overwrites its own instructions one by one to form the actual 6502 instructions:</p><p><a href="https://web.archive.org/web/20250902233415if_/http://6502.org/source/monitors/2ksa.pdf" rel="nofollow">https://web.archive.org/web/20250902233415if_/http://6502.org/source/monitors/2ksa.pdf</a></p><p>Written by one Robert Ford Denison (this is the right person AFAICT- looks like he decided not to stick w/ computers) <a href="https://cbs.umn.edu/directory/r-ford-denison" rel="nofollow">https://cbs.umn.edu/directory/r-ford-denison</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/6406712#notice-12614647">In conversation</a><time datetime="2026-05-18T11:03:06+09:00" title="Monday, 18-May-2026 11:03:06 JST">about a month ago</time> <span>from <span><a href="https://mastodon.social/@cr1901/116592934096828040" rel="external" title="Sent from mastodon.social via ActivityPub">mastodon.social</a></span></span><a href="https://mastodon.social/@cr1901/116592934096828040">permalink</a><h4>Attachments</h4><ol><li><article><header><div>Domain not in remote thumbnail source whitelist: cbs.umn.edu</div><h5><a href="https://cbs.umn.edu/directory/r-ford-denison">R. Ford Denison | College of Biological Sciences</a></h5><div></div></header><div></div><footer></footer></article></li></ol></footer></blockquote>

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William D. Jones (cr1901@mastodon.social)'s status on Monday, 18-May-2026 11:03:06 JST William D. Jones
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Also randomly reminded that there was a 6502 assembler that fit into 2 kilobytes by first turning the assembled program into instructions for a VM. The VM then overwrites its own instructions one by one to form the actual 6502 instructions:
https://web.archive.org/web/20250902233415if_/http://6502.org/source/monitors/2ksa.pdf
Written by one Robert Ford Denison (this is the right person AFAICT- looks like he decided not to stick w/ computers) https://cbs.umn.edu/directory/r-ford-denison
In conversationabout a month ago from mastodon.socialpermalink
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1. Domain not in remote thumbnail source whitelist: cbs.umn.edu
  R. Ford Denison | College of Biological Sciences

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