Scopriamo le operazioni logiche dei processori x86.
#x86 #assembly #x86_64 #x86assembly

https://www.youtube.com/watch?v=p6tMzcit3T8

x86 instruction set extensions (partial list):

x86-64 / AMD64
RTM
HLE
TSX
CET
MMX
MMX+
SSE
SSE2
SSE3
SSE4.1
SSE4.2
SSE4a
SGX
FMA3
AVX
AVX2
AVX-512
AES
SHA
AMD-V
Intel VT-x

It's Ridiculous Instruction Set Computing.

#RISC #x86 #x86_64 #AMD64 #CISC #CPU #microcode

Wrote a minimal UEFI bootloader for my OS project—because #GRUB is a monstrosity—initially with the intention of supporting only #x86_64. After getting it working, I noticed that there was almost no x86_64-specific code. Because I'm using #Zig all I had to do to recompile for #arm64 is modify a single line in build.zig. No fiddling with cross compilers or fucking with sysroots.

Lo and behold it worked perfectly (other than the fact that I didn't recompile my dummy kernel.elf for #aarch64). Zig might just have the most pleasant low level development and cross-compilation workflow I've ever worked with.

Scopriamo le istruzioni di trasferimento dei processori x86 e, in particolare, come sono cambiate dai tempi dei 486.
#x86 #assembly #x86_64 #x86assembly

https://www.youtube.com/watch?v=Jbnwx28AGSA

Spent part of my #RechageDay at #AMD looking at bootstrapping #TinyCC 0.9.26 from #GNUMes on #x86_64 architecture. And thanks to #Mes mantainer @janneke for his help debugging various issues. We can now build initial #tcc binary and it can even run some simple commands such as --help or -vv.

Unfortunately, we still hit some critical bugs when trying to use this tcc binary to rebuild itself but hopefully we are not far now.

#bootstrappable
#BootstrappableBuilds
#ReproducibleBuilds

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

Com o preço dos #RaspberryPi e outras alternativas #ARM #singleboard, está compensando muito mais comprar #minipcs #x86_64.

Intel Suggests Dropping Everything But 64-Bit From X86 With Its X86-S Proposal 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

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

Of course valgrind doesn’t support #FreeBSD #aarch64. Guess I’ll start memchecking traditional #vi over on #Linux #x86_64, then come back later.

iced, https://github.com/icedland/iced.

A fast and correct x86/x64 disassembler, assembler, decoder, encoder for Rust, .NET, Java, Python and Lua.

#disassembler #assembler #x86 #x86_64

working in #risc-v has ruined me. I really wanna get a steam deck but I can't help but think of the battery life needlessly wasted on #x86_64

Building squid from scratch in an x86_64 linux box, had left a `--build=aarch64-unknown-linux-gnu` flag dangling from a prior run in docker in a Mac M1.

Funny thing is that it only aborted after spewing out 4 log lines, trying to xcalloc and the kernel didn't give it the mems.

#squid #proxy #aarch64 #x86_64 #linux

Building squid from scratch in an x86_64 linux box, had left a `--build=aarch64-unknown-linux-gnu` flag dangling from a prior run on docker in a Mac M1.

Funny thing is that it only aborted after spewing out 4 log lines, trying to xcalloc and the kernel didn't give it the mems.

#squid #proxy #aarch64 #x86_64 #linux

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’??? 👀

I'm looking for #podcast recommendations in the #osdev and #pldev spaces (need something to do during upcoming vacation), ideally heavily into the nitty-gritty of #riscv, but I'll take #arm or #x86_64 too. No need the be shy on #TypeTheory either. I'm already listening to Type Theory Forall, The Changelog, Mariane Writes a Programming Language, Syslog, and The Type Theory Podcast.

If you don’t say “ooo big stretch” every time you enable long mode on #x86_64, you’re a psychopath.

#assembly

If you don’t say “ooo big stretch” every time you enable long mode on #x86_64, you’re a psychopath.

#AlmaLinux, #CentOSStream, #ClearLinux, #Debian, #Fedora & #Ubuntu Shoot out On #AMD 4th Gen #EPYC Genoa
Winner? #Intel's Clear with its #AVX512 and other optimizations and extensive tuning for optimal #x86_64 performance paid off for @AMD@twitter.com #EPYCGenoa
https://bit.ly/3WIpLWF

Successfully set up my entire cross-compilation toolchain with Cmake, including qemu & Ctest to run my unit tests on x86_64 🥳

This way I don't have to bring my Bela board everywhere to work on my synth project 😁

#arm
#x86_64
#cmake
#cplusplus
#belaboard
#crosscompilation
#synth
#diy
#qemu