On December 2, I will be speaking at the KasperskyOS Night online technical conference, where I will tell the story of finding a non-trivial bug in our hypervisor.

The entire conference is dedicated to our microkernel operating system, KasperskyOS. There will be both kinds of reports: with dry theory and stories from our daily practice.

Join if you are interested in OS development, DSL (domain specific languages) or information security. Participation is absolutely free, just register.

The conference lasts two days, December 1 — 2. The main language of the conference is Russian.

https://os.kaspersky.ru/night/

#conference #osdev #microkernel #system #programming #c #haskell #dsl #kasperskyos #infosec

A simple program that shows an example of radio transmission without utilization of any onboard wireless technology. Just start the program on MacBook Air (2015) and try to detect the signal with an SDR receiver tuned to 1580kHz on AM.

https://github.com/fulldecent/system-bus-radio

#radio #programming #c #hacking #infosec

αcτµαlly pδrταblε εxεcµταblε is a clever approach to produce x86_64 binaries able to run on most modern operating systems, including Linux, Windows, MacOS and FreeBSD.

https://justine.lol/ape.html

#c #assembly #system #programming #lowlevel

Selfie is an educational project consisting of a compiler for a subset of C that generates code for a simplified RISC-V instruction set, a small emulator for that architecture, and a tiny hypervisor.

Selfie can compile and execute itself.

There are various extensions for Selfie that include a simple garbage collector and a symbolic executor.

http://selfie.cs.uni-salzburg.at/

#c #riscv #system #programming #lowlevel #compiler #osdev #hv #virt

Faux86 is a bare metal 8086 emulator for Raspberry Pi.

https://github.com/jhhoward/Faux86

#c #arm #x86 #virt #system #programming

Stoneknife Forth is a minimal forth translator that can compile itself. This compiler is so simple that it recognizes only one-letter identifiers.

This can be bootstrapped in two steps:

First of all Stoneknife is compiled by itself being interpreted by a slow interpreter written in python.

The second step is compiling with the compiler produced by the previous step. The result is a bootstrapped x86 ELF executable.

https://github.com/kragen/stoneknifeforth

#compiler #lowlevel #system #programming

I have already written about Rui Ueyama and the family of small C compilers: 8cc and 9cc. I also mentioned chibicc, a project that complements Rui's book.

Last time I didn't notice how the author organized the repository of chibicc. Each commit is a single step from zero to a full-featured C11 compiler (without optimizations and proper allocation of registers).

The first commit in the repository only involves a simple compiler that reads a number and generates a program that can return this number on completion. The last commit includes all the source code of the compiler that can build real projects like Git, SQLite and libpng!

https://github.com/rui314/chibicc

#c #compiler #lowlevel #system #programming

Ultibo is a bare metal environment to run FreePascal applications on any available RaspberryPi board. It provides APIs for networking, USB access, preemptive threading on multiple CPUs, filesystem access, exception handling, hardware accelerated OpenGL ES graphics, etc. All of the features are available without any operating system!

https://ultibo.org/wiki/Main_Page

#osdev #pascal #rpi #system #programming

A tutorial on bare metal programming for Raspberry Pi 4.

https://isometimes.github.io/rpi4-osdev/

#osdev #lowlevel #pri #baremetal #system #programming

An article about reconstruction of an old unpublished NES game. Its source code has been buried on floppy disks for years.

Article:
https://gamehistory.org/days-of-thunder-nes-unreleased/

Source code and ROMs:
https://github.com/DickBlackshack/Days-of-Thunder-NES-Unpublished

#nes #retro #game #system #programming #lowlevel