Checking In On the ISA Wars and Its Impact on CPU Architectures - An Instruction Set Architecture (ISA) defines the software interface through which... - https://hackaday.com/2025/03/18/checking-in-on-the-isa-wars-and-its-impact-on-cpu-architectures/ #instructionsetarchitecture #microcontrollers #currentevents #hardware #interest #cpuisa #risc-v #x86_64 #mips #arm

Faster Integer Division with Floating Point - Multiplication on a common microcontroller is easy. But division is much more diff... - https://hackaday.com/2024/12/22/faster-integer-division-with-floating-point/ #softwaredevelopment #softwarehacks #optimization #assembly #avx-512 #x86_64 #simd #x86

It is as if a dam broke in 2006. Huge architectural diversity before 2004, almost none after 2008.
#hpc #cpu #x86 #x86_64 #arm #MIPS #SPARC #risc #alpha #decalpha #cray #NEC #itanium #amd64 #SunSPARC

Linus on different levels for the #x86_64 architecture:

https://lore.kernel.org/all/CAHk-%3Dwh_b8b1qZF8_obMKpF%2BxfYnPZ6t38F1%2B5pK-eXNyCdJ7g@mail.gmail.com/

'"[…] The whole "v2", "v3", "v4" etc naming seems to be some crazy #glibc artifact and is stupid and needs to die.

It has no relevance to anything. Please do *not* introduce that mind-fart into the #kernel sources.

[…] it's entirely unofficial, and it's a completely broken model.

There is a very real model for microarchitectural features, and it's the CPUID bits. […]'" #Linux #LinuxKernel

What is x86-64-v3? - You may have heard Linux pundits discussing x86-64-v3. Can recompiling Linux code ... - https://hackaday.com/2024/02/25/what-is-x86-64-v3/ #computerhacks #linuxhacks #x86_64 #linux

Emulating x86 on Apple’s AARCH64 x64 Emulator - You might know [Evan Martin] as the developer of retrowin32. It’s a Windows and x8... - https://hackaday.com/2023/08/31/emulating-x86-on-apples-aarch64-x64-emulator/ #aarch64 #x86-64 #x86_64 #arm #x64 #x86

Learning x86_64 Assembly By Building A GUI From Scratch - Some professional coders are absolutely adamant that learning to program in assemb... - https://hackaday.com/2023/06/18/learning-x86_64-assembly-by-building-a-gui-from-scratch/ #softwarehacks #assembly #xwindows #x86_64 #gui #x11

Intel Suggests Dropping Everything But 64-Bit From X86 With Its X86-S Proposal - In a move that has a significant part of the internet flashing back to the innocen... - https://hackaday.com/2023/05/21/intel-suggests-dropping-everything-but-64-bit-from-x86-with-its-x86-s-proposal/ #computerhacks #x86_64 #intel #x86

Just finished RE-compiling #FFMPEG static binary from my bash script I used to compile #macOS #X86_64 & #arm64. I thought I had it solved yesterday. Ended up it worked on X86_64 to compile in #HDR10Plus and all relevant CPU optimizations, but something I did messed up ARM64’s compile - so it showed as no #NEON optimizations AND only 32-bit in the x265 section of ffmpeg!

Wha’???