<style type="text/css">a[data-mtli~="mtli_filesize94780kB"]:after {content:" (947.80 kB)"}</style>{"id":15086,"date":"2026-02-19T19:06:00","date_gmt":"2026-02-19T18:06:00","guid":{"rendered":"https:\/\/monodes.com\/predaelli\/?p=15086"},"modified":"2026-02-19T08:39:49","modified_gmt":"2026-02-19T07:39:49","slug":"emulated-fp64","status":"publish","type":"post","link":"https:\/\/monodes.com\/predaelli\/2026\/02\/19\/emulated-fp64\/","title":{"rendered":"Emulated FP64"},"content":{"rendered":"\n<p>Choosing the right news sources is important. In my case <a href=\"https:\/\/mastodon.uno\/@hn50@social.lansky.name\"><strong>Hacker News 50<\/strong><\/a> proved to be precious as in <a href=\"https:\/\/mastodon.uno\/@hn50@social.lansky.name\/116095530672865706\">this recent post\/toot\/message<\/a> they proposed &#8220;<a href=\"https:\/\/nicolasdickenmann.com\/blog\/the-great-fp64-divide.html#fn6\">Fifteen Years of FP64 Segmentation, and Why the Blackwell Ultra Breaks the Pattern<\/a>&#8220;.<\/p>\n\n\n\n<p>Briefly, modern consumer GPU has a 64:1 ration in FP64:FP32 performances (FP64 is a shortcut for <a href=\"https:\/\/en.wikipedia.org\/wiki\/Double-precision_floating-point_format\">Double-precision floating-point number format<\/a>).<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Now I do want to implement &#8211; in Eiffel \u00e7a va sans dire &#8211; <a href=\"https:\/\/csclub.uwaterloo.ca\/~pbarfuss\/dekker1971.pdf\" data-mtli=\"mtli_filesize94780kB\">T. J. DEKKER&#8217;s Technique for Extending the Available Precision in Floating Point aritmetics<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"excerpt\">Choosing the right news sources is important. In my case Hacker News 50 proved to be precious as in this recent post\/toot\/message they proposed &#8220;Fifteen Years of FP64 Segmentation, and Why the Blackwell Ultra Breaks the Pattern&#8220;. Briefly, modern consumer GPU has a 64:1 ration in FP64:FP32 performances (FP64 is a shortcut for Double-precision floating-point&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/monodes.com\/predaelli\/2026\/02\/19\/emulated-fp64\/\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"federated","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[98,19],"tags":[],"class_list":["post-15086","post","type-post","status-publish","format-standard","hentry","category-liberty-eiffel","category-mood"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6daft-3Vk","jetpack-related-posts":[{"id":1630,"url":"https:\/\/monodes.com\/predaelli\/2016\/06\/04\/libfixmath\/","url_meta":{"origin":15086,"position":0},"title":"libfixmath","author":"Paolo Redaelli","date":"2016-06-04","format":false,"excerpt":"Cross Platform Fixed Point Maths Library Cross Platform Fixed Point Maths Library from Google Code Archive - Long-term storage for Google Code Project Hosting. Grabbed it before Google shut down everything! No need to reimplement everything, just as I plan to do with quad-precision floats.","rel":"","context":"In &quot;Documentations&quot;","block_context":{"text":"Documentations","link":"https:\/\/monodes.com\/predaelli\/category\/documentations\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9080,"url":"https:\/\/monodes.com\/predaelli\/2022\/01\/23\/javascript-insanity\/","url_meta":{"origin":15086,"position":1},"title":"Javascript insanity?","author":"Paolo Redaelli","date":"2022-01-23","format":false,"excerpt":"On Facebook\u00a0they write I enjoy JavaScript but this is insanity Welcome to a language that has approximate math as the only math you can use. In fact 7110 \/ 100 * 100 is 7109.99999999 because the first division cannot be exactly represented with with a floating point representation. Sites like\u2026","rel":"","context":"In &quot;Fun&quot;","block_context":{"text":"Fun","link":"https:\/\/monodes.com\/predaelli\/category\/fun\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2022\/01\/javascript-insanity.webp?fit=520%2C372&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4776,"url":"https:\/\/monodes.com\/predaelli\/2018\/10\/24\/ecma-eiffel-syntax-guide\/","url_meta":{"origin":15086,"position":2},"title":"(ECMA) Eiffel Syntax Guide","author":"Paolo Redaelli","date":"2018-10-24","format":false,"excerpt":"(ECMA) Eiffel Syntax Guide","rel":"","context":"In &quot;Eiffel&quot;","block_context":{"text":"Eiffel","link":"https:\/\/monodes.com\/predaelli\/category\/eiffel\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9332,"url":"https:\/\/monodes.com\/predaelli\/2022\/05\/01\/liberty-liberty-eiffel-programming-language\/","url_meta":{"origin":15086,"position":3},"title":"Liberty | Liberty Eiffel programming language","author":"Paolo Redaelli","date":"2022-05-01","format":false,"excerpt":"Liberty Source: Liberty | Liberty Eiffel programming language","rel":"","context":"In &quot;Liberty Eiffel&quot;","block_context":{"text":"Liberty Eiffel","link":"https:\/\/monodes.com\/predaelli\/category\/eiffel\/liberty-eiffel\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":11120,"url":"https:\/\/monodes.com\/predaelli\/2024\/01\/07\/yet-another-missing-eiffel-%f0%9f%98%a2\/","url_meta":{"origin":15086,"position":4},"title":"Yet another missing Eiffel \ud83d\ude22","author":"Paolo Redaelli","date":"2024-01-07","format":false,"excerpt":"On https:\/\/github.com\/attractivechaos\/plb2 there is yet another programming language benchmark. And yet another not having Eiffel.... In addition to C, there is Nim, V, Rust.... that's very sad \ud83d\ude22","rel":"","context":"In &quot;Eiffel&quot;","block_context":{"text":"Eiffel","link":"https:\/\/monodes.com\/predaelli\/category\/eiffel\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8612,"url":"https:\/\/monodes.com\/predaelli\/2022\/05\/30\/eiffel-rust-and-memory-management\/","url_meta":{"origin":15086,"position":5},"title":"Eiffel, Rust and memory management","author":"Paolo Redaelli","date":"2022-05-30","format":false,"excerpt":"It already passed one year almost two years since in \"Oh my lazyness!\" when I wrote I shall restart my efforts on Liberty EIffel and Monodes\u2026 \ud83d\ude41 I hope to integrate them in my current effort. While I haven't been able to integrate Eiffel in the endeavour that is keeping\u2026","rel":"","context":"In &quot;Eiffel&quot;","block_context":{"text":"Eiffel","link":"https:\/\/monodes.com\/predaelli\/category\/eiffel\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts\/15086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/comments?post=15086"}],"version-history":[{"count":2,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts\/15086\/revisions"}],"predecessor-version":[{"id":15088,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts\/15086\/revisions\/15088"}],"wp:attachment":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/media?parent=15086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/categories?post=15086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/tags?post=15086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}