x86-16

Assembly programming game

Embeddable Linux Kernel Subset

Learn 16bit x86 Assembly with emulator

Chrome's t-rex based bootsector game (512 bytes) written in 16-bit x86 assembly (now with 8086 support!)

Emulator of the IBM PC running DOS written in Rust

16bit Intel 8086 / 80186 + X87 emulator written in TypeScript with REPL assembly compiler and tiny C compiler

Assembling Microsoft GW-BASIC from 1983, with MASM or JWasm • "pre-release" binaries at https://github.com/tkchia/GW-BASIC/releases • source mirror at https://gitlab.com/tkchia/GW-BASIC • fork of https://github.com/dspinellis/GW-BASIC

A 16-bits x86 DOS Assembly library that provides many useful functions for developing programs. It has both VGA grapics functions as well as general purpose utilities. The main purpose of this library was to be able to implement simple DOS games (in Assembly) using VGA (320x200, 256 colors) display.

MBBSDASM is an x86 Disassembler for 16-bit DOS / Windows 3.0 Segmented Executable (NE) EXE/DLL File Format with special features related to The MajorBBS & Worldgroup Modules

A tiny but powerful VGA text mode font editor for DOS

Best way to learn x86 is by hacking it

Attempt to reimplement non-standard C library facilities (e.g. <conio.h>) used in MS-DOS programs, for IA-16 GCC ― mirror of https://gitlab.com/tkchia/libi86 • Ubuntu packages for cross-compilation at https://launchpad.net/%7Etkchia/+archive/ubuntu/build-ia16/ • DJGPP/MS-DOS binaries at https://github.com/tkchia/libi86/releases

Running x86-16 or x86-32 code from x86-64 UEFI; _very experimental_ • mirror of https://gitlab.com/tkchia/biefircate • developer notes at https://gitlab.com/tkchia/biefircate/-/blob/main/NOTES.asciidoc

The very functional operating system

Win16 NE (New Executable) parser & disassembler

MBBSDASM Hex-Rays IDA IDS/IDT Files for MajorBBS/Worldgroup Modules

512-byte boot sector remake of Bill Gates' DONKEY.BAS game from DOS 1.0

86 dos operating System

A hobby Operating System developed from scratch using i8086 assembly

Playing around with x86 cpu architecture using unicorn cpu emulator framework

Operating System for x86

My 8086 assembly examples written in emu8086.

A minimalist simple operating system

DOS toolset; optimizes CGA output for TV sets. Includes a boot-sector version for booter game support.

Emulator of an IBM PC 5150 with accurate hardware emulation and clock level accuracy (as close as possible)

A toy IA-32 operating system with a custom boot loader.

An 8086 assembler and step debugger.

A wannabe x86-64 operating system.

Disassembly of some MS-DOS v1.25 programs released only in binary form; & code for building the v1.25 development tools ASM.ASM, HEX2BIN.ASM, & TRANS.ASM • mirrored at https://gitlab.com/tkchia/MS-DOS-disassembly

Plasma in 115 bytes for DOS in FASM