Hacker News with Generative AI: x86 Architecture

The little book about OS development (littleosbook.github.io)
This text is a practical guide to writing your own x86 operating system. It is designed to give enough help with the technical details while at the same time not reveal too much with samples and code excerpts. We’ve tried to collect parts of the vast (and often excellent) expanse of material and tutorials available, on the web and otherwise, and add our own insights into the problems we encountered and struggled with.
Operating Systems, Programming, Tutorials, x86 Architecture
370 points by ibobev 11 days ago | 54 comments
Two bits per transistor: high-density ROM in Intel's 8087 FPU (2018) (righto.com)
The 8087 chip provided fast floating point arithmetic for the original IBM PC and became part of the x86 architecture used today.
Hardware, Computer History, Intel, x86 Architecture
5 points by Syonyk 36 days ago | 0 comments
Revisiting the DOS Memory Models (blogsystem5.substack.com)
At the beginning of the year, I wrote a bunch of articles on the various tricks DOS played to overcome the tight memory limits of x86’s real mode. There was one question that came up and remained unanswered: what were the various “models” that the compilers of the day offered?
DOS, Programming, Memory Management, x86 Architecture
182 points by mooreds 129 days ago | 101 comments
x86 Early Kernel Boot Process with Microcode, ACPI Overrides, and Initrd (labcsmart.com)
In this third installment of our x86 Platforms series, following Part 2: UEFI Bootloader Management and Integration with Yocto, we’re going to explore the early kernel boot process in more depth. Specifically, we’ll cover how x86 systems handle microcode updates, ACPI table overrides, and the initrd (initial RAM disk). These elements are critical for configuring the CPU, hardware, and the system during the boot process.
Operating Systems, x86 Architecture, Boot Process, Kernel, Hardware
12 points by transpute 158 days ago | 2 comments
Hardening C Against ROP: Getting CET Shadow Stacks Working (x86.lol)
This post shows you how to use CET user shadow stacks on Linux.
Security, Programming, Linux, x86 Architecture
23 points by transpute 189 days ago | 1 comments
FEX: Fast x86 emulation front end (github.com/FEX-Emu)
Emulation, Software, x86 Architecture, Computer Architecture
10 points by ingve 300 days ago | 0 comments
More on x86 – The Chip Letter (thechipletter.substack.com)
x86 Architecture, Technology, Hardware, Semiconductors
65 points by rbanffy 342 days ago | 43 comments
The Paradox of x86 (thechipletter.substack.com)
x86 Architecture, Hardware, Technology, Computing
24 points by rbanffy 350 days ago | 27 comments