--- title: Modern X86 Assembly Language Programming • Daniel... description: Matt Godbolt interviews Dan Kusswurm about modern x86 assembly language programming, focusing on SIMD (Single Instruction Multiple Data) extensions like AVX... canonical: https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt | daily.dev og:description: Matt Godbolt interviews Dan Kusswurm about modern x86 assembly language programming, focusing on SIMD (Single Instruction Multiple Data) extensions like AVX... og:url: https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7 og:image: https://api.daily.dev/og/posts/YfWBhNQB7.png og:image:alt: Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt **[GOTO Conferences](https://daily.dev/sources/goto)** · 32 min read · 0 upvotes · 0 comments ## Summary Matt Godbolt interviews Dan Kusswurm about modern x86 assembly language programming, focusing on SIMD (Single Instruction Multiple Data) extensions like AVX and AVX-512. They discuss when assembly language is justified (real-time image processing, multimedia, high-frequency trading), how SIMD works by processing multiple data elements simultaneously, and the challenges of writing SIMD algorithms including conditional logic and masking. Kusswurm explains the trade-offs between hand-written assembly, compiler intrinsics, and compiler-generated code, emphasizing that assembly is worthwhile when performance gains are substantial (2-3x) and computational bottlenecks exist. The conversation covers calling conventions, benchmarking challenges, and how understanding assembly improves higher-level programming through better awareness of cache alignment and memory layout. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [AVX-512: First Impressions on Performance and Programmability](https://daily.dev/posts/avx-512-first-impressions-on-performance-and-programmability-zvccn3onc) · Hacker News · 1 upvotes · 0 comments - [Everyone Should Know SIMD](https://daily.dev/posts/everyone-should-know-simd-jggqusevq) · Mitchell Hashimoto · 3 upvotes · 0 comments - [Pikuma: SIMD in the 90s: Programming Intel's Pentium MMX](https://daily.dev/posts/pikuma-simd-in-the-90s-programming-intel-s-pentium-mmx-uqi9hcgvq) · Two Stop Bits · 1 upvotes · 1 comments --- Tags: [#assembly](https://daily.dev/tags/assembly), [#c++](https://daily.dev/tags/c++), [#performance](https://daily.dev/tags/performance) [View this post on daily.dev](https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt","url":"https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7"},"datePublished":"2026-01-16T13:41:28.778Z","dateModified":"2026-03-15T03:49:26.663Z","description":"Matt Godbolt interviews Dan Kusswurm about modern x86 assembly language programming, focusing on SIMD (Single Instruction Multiple Data) extensions like AVX...","image":"https://i.ytimg.com/vi/1GfPBqyGWmw/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/1GfPBqyGWmw/sddefault.jpg","isAccessibleForFree":true,"articleSection":"GOTO Conferences","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"GOTO Conferences","logo":"https://media.daily.dev/image/upload/s--rax7fnoD--/f_auto/v1704628081/logos/goto.jpg","url":"https://daily.dev/sources/goto"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/modern-x86-assembly-language-programming-daniel-kusswurm-matt-godbolt-yfwbhnqb7","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"assembly,c++,performance","timeRequired":"PT32M","video":{"@type":"VideoObject","name":"Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt","description":"Matt Godbolt interviews Dan Kusswurm about modern x86 assembly language programming, focusing on SIMD (Single Instruction Multiple Data) extensions like AVX...","thumbnailUrl":"https://i.ytimg.com/vi/1GfPBqyGWmw/sddefault.jpg","uploadDate":"2026-01-16T13:41:28.778Z","duration":"PT32M","url":"https://api.daily.dev/r/YfWBhNQB7","embedUrl":"https://www.youtube.com/embed/1GfPBqyGWmw"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"GOTO Conferences","item":"https://daily.dev/sources/goto"},{"@type":"ListItem","position":3,"name":"Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt"}]} ```