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LLMsUsing Integer Addition to Approximate Float Multiplication Once the domain of esoteric scientific...<br><br><a href="https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/" rel="nofollow noopener noreferrer" target="_blank">https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/</a><br><br><a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Software" target="_blank">#Software</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Development" target="_blank">#Development</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Software" target="_blank">#Software</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Hacks" target="_blank">#Hacks</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/floating" target="_blank">#floating</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/point" target="_blank">#point</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/FPU" target="_blank">#FPU</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/gpu" target="_blank">#gpu</a><br><br><a href="https://awakari.com/pub-msg.html?id=SNCjv6ag7GC1Vps35iotL6LA3KS" rel="nofollow noopener noreferrer" target="_blank">Event Attributes</a>
IT News<p>Using Integer Addition to Approximate Float Multiplication - Once the domain of esoteric scientific and business computing, floating point calc... - <a href="https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/04/10/using-</span><span class="invisible">integer-addition-to-approximate-float-multiplication/</span></a> <a href="https://schleuss.online/tags/softwaredevelopment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>softwaredevelopment</span></a> <a href="https://schleuss.online/tags/softwarehacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>softwarehacks</span></a> <a href="https://schleuss.online/tags/floatingpoint" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>floatingpoint</span></a> <a href="https://schleuss.online/tags/fpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fpu</span></a> <a href="https://schleuss.online/tags/gpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gpu</span></a></p>
Pyrzout :vm:<p>Using Integer Addition to Approximate Float Multiplication <a href="https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/04/10/using-</span><span class="invisible">integer-addition-to-approximate-float-multiplication/</span></a> <a href="https://social.skynetcloud.site/tags/SoftwareDevelopment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SoftwareDevelopment</span></a> <a href="https://social.skynetcloud.site/tags/SoftwareHacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SoftwareHacks</span></a> <a href="https://social.skynetcloud.site/tags/floatingpoint" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>floatingpoint</span></a> <a href="https://social.skynetcloud.site/tags/FPU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FPU</span></a> <a href="https://social.skynetcloud.site/tags/gpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gpu</span></a></p>
LLMsUsing Integer Addition to Approximate Float Multiplication Once the domain of esoteric scientific...<br><br><a href="https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/" rel="nofollow noopener noreferrer" target="_blank">https://hackaday.com/2025/04/10/using-integer-addition-to-approximate-float-multiplication/</a><br><br><a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Software" target="_blank">#Software</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Development" target="_blank">#Development</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Software" target="_blank">#Software</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Hacks" target="_blank">#Hacks</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/floating" target="_blank">#floating</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/point" target="_blank">#point</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/FPU" target="_blank">#FPU</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/gpu" target="_blank">#gpu</a><br><br><a href="https://awakari.com/pub-msg.html?id=Xw94YZ1GXSCRdgWyVwbDBNnRiue" rel="nofollow noopener noreferrer" target="_blank">Event Attributes</a>
Reverse-EngineeringThe Pentium Processor’s Innovative (and Complicated) Method of Multiplying by Three, Fast [Ken ...<br><br><a href="https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/" rel="nofollow noopener noreferrer" target="_blank">https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/</a><br><br><a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Retrocomputing" target="_blank">#Retrocomputing</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Reverse" target="_blank">#Reverse</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Engineering" target="_blank">#Engineering</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/FPU" target="_blank">#FPU</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/pentium" target="_blank">#pentium</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/radix-8" target="_blank">#radix-8</a><br><br><a href="https://awakari.com/pub-msg.html?id=Eby4DgxGi9MScy4p51wHZVMGpKS" rel="nofollow noopener noreferrer" target="_blank">Event Attributes</a>
Reverse-EngineeringThe Pentium Processor’s Innovative (and Complicated) Method of Multiplying by Three, Fast [Ken ...<br><br><a href="https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/" rel="nofollow noopener noreferrer" target="_blank">https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/</a><br><br><a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Retrocomputing" target="_blank">#Retrocomputing</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Reverse" target="_blank">#Reverse</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Engineering" target="_blank">#Engineering</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/FPU" target="_blank">#FPU</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/pentium" target="_blank">#pentium</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/radix-8" target="_blank">#radix-8</a><br><br><a href="https://awakari.com/pub-msg.html?id=UYlImVNLsyzcm8snFyTyqR5dhuC" rel="nofollow noopener noreferrer" target="_blank">Event Attributes</a>
IT News<p>The Pentium Processor’s Innovative (and Complicated) Method of Multiplying by Three, Fast - [Ken Shirriff] has been sharing a really low-level look at Intel’s Pentium (1993) ... - <a href="https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/03/08/the-pe</span><span class="invisible">ntium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/</span></a> <a href="https://schleuss.online/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/pentium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pentium</span></a> <a href="https://schleuss.online/tags/radix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radix</span></a>-8 <a href="https://schleuss.online/tags/fpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fpu</span></a></p>
Pyrzout :vm:<p>The Pentium Processor’s Innovative (and Complicated) Method of Multiplying by Three, Fast <a href="https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/03/08/the-pe</span><span class="invisible">ntium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/</span></a> <a href="https://social.skynetcloud.site/tags/ReverseEngineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ReverseEngineering</span></a> <a href="https://social.skynetcloud.site/tags/Retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Retrocomputing</span></a> <a href="https://social.skynetcloud.site/tags/pentium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pentium</span></a> <a href="https://social.skynetcloud.site/tags/radix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radix</span></a>-8 <a href="https://social.skynetcloud.site/tags/FPU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FPU</span></a></p>
Reverse-EngineeringThe Pentium Processor’s Innovative (and Complicated) Method of Multiplying by Three, Fast [Ken ...<br><br><a href="https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/" rel="nofollow noopener noreferrer" target="_blank">https://hackaday.com/2025/03/08/the-pentium-processors-innovative-and-complicated-method-of-multiplying-by-three-fast/</a><br><br><a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Retrocomputing" target="_blank">#Retrocomputing</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Reverse" target="_blank">#Reverse</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/Engineering" target="_blank">#Engineering</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/FPU" target="_blank">#FPU</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/pentium" target="_blank">#pentium</a> <a rel="nofollow noopener noreferrer" class="mention hashtag" href="https://mastodon.social/tags/radix-8" target="_blank">#radix-8</a><br><br><a href="https://awakari.com/pub-msg.html?id=EAXF2CHS1YzRIR8yFN8xHKFW7JQ" rel="nofollow noopener noreferrer" target="_blank">Event Attributes</a>
Gea-Suan Lin<p>Intel 當年的 Pentium FDIV bug 居然還有新的發現...</p><p>三十年前的 Pentium FDIV bug 居然還有新的發現冒出來：「Intel's $475 million error: the silicon behind the Pentium division bug」。</p><p>先快速複習</p><p><a href="https://blog.gslin.org/archives/2025/01/03/12177/intel-%e7%95%b6%e5%b9%b4%e7%9a%84-pentium-fdiv-bug-%e5%b1%85%e7%84%b6%e9%82%84%e6%9c%89%e6%96%b0%e7%9a%84%e7%99%bc%e7%8f%be/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.gslin.org/archives/2025/0</span><span class="invisible">1/03/12177/intel-%e7%95%b6%e5%b9%b4%e7%9a%84-pentium-fdiv-bug-%e5%b1%85%e7%84%b6%e9%82%84%e6%9c%89%e6%96%b0%e7%9a%84%e7%99%bc%e7%8f%be/</span></a></p><p><a href="https://abpe.org/tags/Computer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Computer</span></a> <a href="https://abpe.org/tags/Hardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hardware</span></a> <a href="https://abpe.org/tags/Murmuring" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Murmuring</span></a> <a href="https://abpe.org/tags/Programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Programming</span></a> <a href="https://abpe.org/tags/bug" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bug</span></a> <a href="https://abpe.org/tags/cpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cpu</span></a> <a href="https://abpe.org/tags/engineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>engineering</span></a> <a href="https://abpe.org/tags/fdiv" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fdiv</span></a> <a href="https://abpe.org/tags/fpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fpu</span></a> <a href="https://abpe.org/tags/hardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hardware</span></a> <a href="https://abpe.org/tags/intel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>intel</span></a> <a href="https://abpe.org/tags/lookup" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>lookup</span></a> <a href="https://abpe.org/tags/pentium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pentium</span></a> <a href="https://abpe.org/tags/pla" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pla</span></a> <a href="https://abpe.org/tags/reverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverse</span></a> <a href="https://abpe.org/tags/table" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>table</span></a></p>
dorotaC<p>Irregular reminder: floating point calculations are not exact.</p><p>Take your program to a different <a href="https://fosstodon.org/tags/hardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hardware</span></a> and your tests may start failing:</p><p><a href="https://codeberg.org/libobscura/libobscura/src/branch/master/crates/conv/tests/convtest.rs#L40" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">codeberg.org/libobscura/libobs</span><span class="invisible">cura/src/branch/master/crates/conv/tests/convtest.rs#L40</span></a></p><p><a href="https://codeberg.org/libobscura/libobscura/actions/runs/30#jobstep-7-431" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">codeberg.org/libobscura/libobs</span><span class="invisible">cura/actions/runs/30#jobstep-7-431</span></a></p><p><a href="https://fosstodon.org/tags/fpu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fpu</span></a> <a href="https://fosstodon.org/tags/float" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>float</span></a> <a href="https://fosstodon.org/tags/floatingpoint" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>floatingpoint</span></a> <a href="https://fosstodon.org/tags/precision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>precision</span></a> <a href="https://fosstodon.org/tags/libobscura" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>libobscura</span></a></p>
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