PHPackages thefox/i8086emu - PHPackages - PHPackages [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register) 1. [Directory](/) 2. / 3. [Utility & Helpers](/categories/utility) 4. / 5. thefox/i8086emu ActiveProject[Utility & Helpers](/categories/utility) thefox/i8086emu =============== Intel 8086 CPU Emulator 2811[3 issues](https://github.com/TheFox/i8086emu/issues)PHPCI failing Since Mar 23Pushed 6y ago3 watchersCompare [ Source](https://github.com/TheFox/i8086emu)[ Packagist](https://packagist.org/packages/thefox/i8086emu)[ RSS](/packages/thefox-i8086emu/feed)WikiDiscussions master Synced yesterday READMEChangelogDependenciesVersions (1)Used By (0) Intel 8086 CPU Emulator ======================= [](#intel-8086-cpu-emulator) An Intel 8086 CPU Emulator written in pure PHP. Project Outlines ---------------- [](#project-outlines) The project outlines as described in my blog post about [Open Source Software Collaboration](https://blog.fox21.at/2019/02/21/open-source-software-collaboration.html). - The main purpose of this software is to emulate the Intel 8086 CPU using pure PHP. - The features should not go beyond Intel's features and functions. So the features of this software are limited to those of the Intel 8086 CPU. - This list is open. Feel free to request features. Compile the BIOS ---------------- [](#compile-the-bios) Run `make bios/bios`. TTY --- [](#tty) In order to have a TTY for the in- and output you can specify `--tty `. This will start a `socat` subprocess to create an interface between PHP and TTY. The TTY then can be accessed using `screen`. Optional, to use a different installation path for the `socat` binary you can specify `--socat `. 1. Install `socat`. 2. Open a shell and run `./bin/screen.sh`. 3. Open another shell and run `./bin/run.sh`. Terms ----- [](#terms) - `Byte` - 8 bit, one single character. - `Word` - 16 bit, or 2 Byte. 8086 Resources -------------- [](#8086-resources) - [Wikipedia: Intel 8086](https://en.wikipedia.org/wiki/Intel_8086) - [Wikipedia: Processor Register](https://en.wikipedia.org/wiki/Processor_register) - [Wikipedia: FLAGS Register](https://en.wikipedia.org/wiki/FLAGS_register) - [Wikipedia: Parity Flag](https://en.wikipedia.org/wiki/Parity_flag) - [Wikipedia: Word](https://en.wikipedia.org/wiki/Word_(computer_architecture)) - [8086 opcodes](http://www.mlsite.net/8086/) - [StackExchange: Emulate an Intel 8086 CPU](https://codegolf.stackexchange.com/questions/4732/emulate-an-intel-8086-cpu) - [x86 Registers](http://www.eecg.toronto.edu/~amza/www.mindsec.com/files/x86regs.html) - [Encoding x86 Instructions](https://www-user.tu-chemnitz.de/~heha/viewchm.php/hs/x86.chm/x86.htm) - [Encoding x86 Instruction Operands, MOD-REG-R/M Byte](http://www.c-jump.com/CIS77/CPU/x86/X77_0060_mod_reg_r_m_byte.htm) - [X86 Assembly/X86 Architecture](https://en.wikibooks.org/wiki/X86_Assembly/X86_Architecture) - [X86-64 Instruction Encoding](http://wiki.osdev.org/X86-64_Instruction_Encoding) - [OUT -- Output to Port](https://pdos.csail.mit.edu/6.828/2010/readings/i386/OUT.htm) - [MDA, CGA, HGC, EGA, VGA, SVGA, TIGA](https://www.tu-chemnitz.de/informatik/RA/news/stack/kompendium/vortraege_98/grafik/adaptertypen.html) (German) - [8086/88 Assembler Befehlsreferenz](http://www.i8086.de/asm/8086-88-asm.html) (German) - [X86 Opcode and Instruction Reference](http://ref.x86asm.net/coder32.html) - [Understanding Intel Instruction Sizes](https://www.swansontec.com/sintel.html) More Resources -------------- [](#more-resources) - [How To Write a Computer Emulator](https://fms.komkon.org/EMUL8/HOWTO.html) ### Health Score 19 — LowBetter than 10% of packages Maintenance18 Infrequent updates — may be unmaintained Popularity11 Limited adoption so far Community9 Small or concentrated contributor base Maturity34 Early-stage or recently created project Bus Factor1 Top contributor holds 100% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Community Maintainers ![](https://www.gravatar.com/avatar/b879f8d5879bc5cb3a1bc43287d0b26834ffc0f403e1b076375da977fe308c55?d=identicon)[TheFox](/maintainers/TheFox) --- Top Contributors [![TheFox](https://avatars.githubusercontent.com/u/353709?v=4)](https://github.com/TheFox "TheFox (221 commits)") --- Tags emulatorintel-8086mit-licensephpphp7x86 ### Embed Badge ![Health badge](/badges/thefox-i8086emu/health.svg) ``` [![Health](https://phpackages.com/badges/thefox-i8086emu/health.svg)](https://phpackages.com/packages/thefox-i8086emu) ``` PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)