Whole-known-network
<p>by the way, the "bizarre, seemingly impossible way" is that the CPU can execute an `STM r0, {r0-r15}` command just fine, but when asked to do `MSR CPSR_c, 0xc0` it just... doesn't switch the mode</p><p>the MSR opcode is a single word. there's nothing in how it's executed that isn't already tested by the preceding and succeeding STM opcode. it doesn't touch system memory or anything; it's one of the simplest commands you can imagine. the data transferred by STM is always right</p><p>it's just... broken</p>
<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> you could join forces with <span class="h-card" translate="no"><a href="https://chaos.social/@salkinium" class="u-url mention">@<span>salkinium</span></a></span> who had much fun with similar issues.</p><p><a href="https://salkinium.com/master.pdf" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">salkinium.com/master.pdf</span><span class="invisible"></span></a></p>
<p>A Tektronix TDS 684B Oscilloscope Uses CCD Analog Memory<br /><a href="https://tomverbeure.github.io/2025/05/04/TDS684B-CCD-Memory.html" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">tomverbeure.github.io/2025/05/</span><span class="invisible">04/TDS684B-CCD-Memory.html</span></a></p>
<p>oh my god, i've spent several hours tracking a bug in my debugger, trying to figure out why sometimes debug mode entry is just broken in a bizarre, seemingly impossible way</p><p>did you think i fucked something up? no, it's ARM7TDMI that is wrong! it has so much errata, debug mode enter via debug request is basically completely unusable <a href="https://documentation-service.arm.com/static/5ed62dc5ca06a95ce53f9214?token=" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">documentation-service.arm.com/</span><span class="invisible">static/5ed62dc5ca06a95ce53f9214?token=</span></a></p><p>(distant screaming)</p>
<p>So the whole point of Signal is that it doesn't store client messages on the server, making it pointless for hackers/governments to steal/require any data from it.</p><p>Trump's goons didn't use Signal. They used a fork. Which does archive messages on the server, thus completely negating the Signal's advantage. Making it possible to hack and steal. Which is, apparently, what did happen: <a href="https://www.404media.co/the-signal-clone-the-trump-admin-uses-was-hacked/" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://www.</span><span class="ellipsis">404media.co/the-signal-clone-t</span><span class="invisible">he-trump-admin-uses-was-hacked/</span></a></p>
<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://hachyderm.io/@cliffle" class="u-url mention">@<span>cliffle</span></a></span> are these the ones that are named for inside diameter, standardized by outside diameter, and then materials got better and pipe walls got thinner?</p>
<p><span class="h-card" translate="no"><a href="https://hachyderm.io/@cliffle" class="u-url mention">@<span>cliffle</span></a></span> i once found out that a 1.5" nominal diameter pipe has absolutely no measurement that is 1.5", anywhere, ever</p><p>that was when i was like 20 and it was one of the top betrayals in my life. i haven't been the same since</p>
<p><span class="h-card" translate="no"><a href="https://mastodon.social/@cfbolz" class="u-url mention">@<span>cfbolz</span></a></span> <span class="h-card" translate="no"><a href="https://toot.berlin/@krono" class="u-url mention">@<span>krono</span></a></span> oh, that's interesting! in my case, I use asyncio almost entirely to talk to my own code (libusb asyncio bridge), which may skew the results somewhat</p>
<p><span class="h-card" translate="no"><a href="https://tech.lgbt/@42triangles" class="u-url mention">@<span>42triangles</span></a></span> <span class="h-card" translate="no"><a href="https://hachyderm.io/@RealGene" class="u-url mention">@<span>RealGene</span></a></span> they do. (Thumb is very easy to decode)</p>