Readme.md - emulators/v86 - Rivoreo Source Code Repositories

 [![Join the chat at https://gitter.im/copy/v86](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/copy/v86?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)


 Demos
 -

 - [Windows 98](https://copy.sh/v86/?profile=windows98)
 - [Linux](https://copy.sh/v86/?profile=linux26)
 - [Linux 3](https://copy.sh/v86/?profile=linux3)
 - [KolibriOS](https://copy.sh/v86/?profile=kolibrios)
 - [FreeDOS](https://copy.sh/v86/?profile=freedos)
 - [Windows 1.01](https://copy.sh/v86/?profile=windows1)
 - [Archlinux](https://copy.sh/v86/?profile=archlinux)


 API examples
 -

 - [Basic](examples/basic.html)
 - [Programatically using the serial terminal](examples/serial.html)
 - [A Lua interpreter](examples/lua.html)
 - [Two instances in one window](examples/two_instances.html)
 - [Saving and restoring emulator state](examples/save_restore.html)

 Using v86 for your own purposes is as easy as:

 ```javascript
 var emulator = new V86Starter({
     screen_container: document.getElementById("screen_container"),
     bios: {
         url: "../../bios/seabios.bin",
     },
     vga_bios: {
         url: "../../bios/vgabios.bin",
     },
     cdrom: {
         url: "../../images/linux.iso",
     },
     autostart: true,
 });
 ```

 See [API](docs/api.md).


 How does it work?
 -

 v86 emulates an x86-compatible CPU and hardware. Here's a list of emulated hardware:

 - An x86 compatible CPU. The instruction set is around Pentium 1 level. Some
   features are missing, more specifically:
   - Task gates, far calls in protected mode
   - 16 bit protected mode features
   - Single stepping
   - MMX, SSE
   - A bunch of FPU instructions
   - Some exceptions
 - A floating point unit (FPU). Calculations are done with JavaScript's double
   precision numbers (64 bit), so they are not as precise as calculations on a
   real FPU (80 bit).
 - A floppy disk controller (8272A).
 - An 8042 Keyboard Controller, PS2. With mouse support.
 - An 8254 Programmable Interval Timer (PIT).
 - An 8259 Programmable Interrupt Controller (PIC).
 - A CMOS Real Time Clock (RTC).
 - A VGA controller with SVGA support and Bochs VBE Extensions.
 - A PCI bus. This one is partly incomplete and not used by every device.
 - An IDE disk controller.
 - An NE2000 (8390) PCI network card.
 - A virtio filesystem.


 Testing
 -

 The disk images are not included in this repository. You can download them
 directly from the website using:

 `wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}`.

 A testsuite is available in `tests/full/`. Run it using `node tests/full/run.js`.


 How to build, run and embed?
 -

 - Building is only necessay for releases, open debug.html and everything should load out of the box
 - If you want a compressed and fast (i.e. with debug code removed) version, you
   need Closure Compiler. Download it as shown below and run `make build/v86_all.js`.
 - ROM and disk images are loaded via XHR, so if you want to try out `index.html`
   locally, make sure to serve it from a local webserver. You can use `make run`
   to serve the files using Python's SimpleHTTPServer.
 - If you only want to embed v86 in a webpage you can use libv86.js. For
   usage, check out the [API](docs/api.md) and [examples](examples/).
 - A couple of disk images are provided for testing. You can check them out
   using `wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}`.


 **Short summary:**

 ```bash
 # grab the main repo
 git clone https://github.com/copy/v86.git && cd v86

 # grab the disk images
 wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}

 # grab closure compiler
 wget -P closure-compiler https://dl.google.com/closure-compiler/compiler-latest.zip
 unzip -d closure-compiler closure-compiler/compiler-latest.zip *.jar

 # build the library
 make build/libv86.js

 # run the tests
 ./tests/full/run.js
 ```

 Compatibility
 -

 Here's an overview of the operating systems supported in v86:

 - Linux works pretty well. Graphical boot fails in many versions, but you
   mostly get a shell. The mouse is often not detected automatically.
   - Damn Small Linux (2.4 Kernel): Works, takes circa 10 minutes to boot.
   - Tinycore (3.0 kernel): `udev` and `X` fail, but you get a
     terminal.
   - Nanolinux works.
   - Archlinux works. Add `atkbd` to `MODULES` in `/etc/mkinitcpio.conf`.
 - ReactOS works
 - FreeDOS, Windows 1.01 and MS-DOS run very well.
 - KolibriOS works. A few applications need SSE.
 - Haiku boots, but takes very long (around 30 minutes).
 - No Android version seems to work, you still get a shell.
 - Windows 1, 95 and 98 work. Other versions currently don't.
 - Many hobby operating systems work.
 - Modern operating systems that require an APIC don't work.

 You can get some infos on the disk images here: https://github.com/copy/images.


 How can I contribute?
 -

 - Add new features (hardware devices, fill holes in the CPU), fix bugs. Check
   out the issues section and contact me if you need help.
 - Report bugs.
 - If you want to donate, let me know.

 License
 -

 Simplified BSD License, see [LICENSE](LICENSE), unless otherwise noted.


 Credits
 -

 - CPU test cases via QEMU, http://wiki.qemu.org/Main_Page
 - [Disk Images](https://github.com/copy/images)
 - [The jor1k project](https://github.com/s-macke/jor1k) for 9p, filesystem and uart drivers
 - [WinWorld](https://winworldpc.com/) sources of some old operating systems


 More questions?
 -

 Shoot me an email to `copy@copy.sh`. Please don't tell about bugs via mail,
 create a bug report on GitHub instead.


 Author
 -

 Fabian Hemmer (http://copy.sh/, `copy@copy.sh`)
	[![Join the chat at https://gitter.im/copy/v86](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/copy/v86?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)


	Demos
	-

	- [Windows 98](https://copy.sh/v86/?profile=windows98)
	- [Linux](https://copy.sh/v86/?profile=linux26)
	- [Linux 3](https://copy.sh/v86/?profile=linux3)
	- [KolibriOS](https://copy.sh/v86/?profile=kolibrios)
	- [FreeDOS](https://copy.sh/v86/?profile=freedos)
	- [Windows 1.01](https://copy.sh/v86/?profile=windows1)
	- [Archlinux](https://copy.sh/v86/?profile=archlinux)


	API examples
	-

	- [Basic](examples/basic.html)
	- [Programatically using the serial terminal](examples/serial.html)
	- [A Lua interpreter](examples/lua.html)
	- [Two instances in one window](examples/two_instances.html)
	- [Saving and restoring emulator state](examples/save_restore.html)

	Using v86 for your own purposes is as easy as:

	```javascript
	var emulator = new V86Starter({
	screen_container: document.getElementById("screen_container"),
	bios: {
	url: "../../bios/seabios.bin",
	},
	vga_bios: {
	url: "../../bios/vgabios.bin",
	},
	cdrom: {
	url: "../../images/linux.iso",
	},
	autostart: true,
	});
	```

	See [API](docs/api.md).


	How does it work?
	-

	v86 emulates an x86-compatible CPU and hardware. Here's a list of emulated hardware:

	- An x86 compatible CPU. The instruction set is around Pentium 1 level. Some
	features are missing, more specifically:
	- Task gates, far calls in protected mode
	- 16 bit protected mode features
	- Single stepping
	- MMX, SSE
	- A bunch of FPU instructions
	- Some exceptions
	- A floating point unit (FPU). Calculations are done with JavaScript's double
	precision numbers (64 bit), so they are not as precise as calculations on a
	real FPU (80 bit).
	- A floppy disk controller (8272A).
	- An 8042 Keyboard Controller, PS2. With mouse support.
	- An 8254 Programmable Interval Timer (PIT).
	- An 8259 Programmable Interrupt Controller (PIC).
	- A CMOS Real Time Clock (RTC).
	- A VGA controller with SVGA support and Bochs VBE Extensions.
	- A PCI bus. This one is partly incomplete and not used by every device.
	- An IDE disk controller.
	- An NE2000 (8390) PCI network card.
	- A virtio filesystem.


	Testing
	-

	The disk images are not included in this repository. You can download them
	directly from the website using:

	`wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}`.

	A testsuite is available in `tests/full/`. Run it using `node tests/full/run.js`.


	How to build, run and embed?
	-

	- Building is only necessay for releases, open debug.html and everything should load out of the box
	- If you want a compressed and fast (i.e. with debug code removed) version, you
	need Closure Compiler. Download it as shown below and run `make build/v86_all.js`.
	- ROM and disk images are loaded via XHR, so if you want to try out `index.html`
	locally, make sure to serve it from a local webserver. You can use `make run`
	to serve the files using Python's SimpleHTTPServer.
	- If you only want to embed v86 in a webpage you can use libv86.js. For
	usage, check out the [API](docs/api.md) and [examples](examples/).
	- A couple of disk images are provided for testing. You can check them out
	using `wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}`.


	Short summary:

	```bash
	# grab the main repo
	git clone https://github.com/copy/v86.git && cd v86

	# grab the disk images
	wget -P images/ https://copy.sh/v86/images/{linux.iso,linux3.iso,kolibri.img,windows101.img,os8.dsk,freedos722.img,openbsd.img}

	# grab closure compiler
	wget -P closure-compiler https://dl.google.com/closure-compiler/compiler-latest.zip
	unzip -d closure-compiler closure-compiler/compiler-latest.zip *.jar

	# build the library
	make build/libv86.js

	# run the tests
	./tests/full/run.js
	```

	Compatibility
	-

	Here's an overview of the operating systems supported in v86:

	- Linux works pretty well. Graphical boot fails in many versions, but you
	mostly get a shell. The mouse is often not detected automatically.
	- Damn Small Linux (2.4 Kernel): Works, takes circa 10 minutes to boot.
	- Tinycore (3.0 kernel): `udev` and `X` fail, but you get a
	terminal.
	- Nanolinux works.
	- Archlinux works. Add `atkbd` to `MODULES` in `/etc/mkinitcpio.conf`.
	- ReactOS works
	- FreeDOS, Windows 1.01 and MS-DOS run very well.
	- KolibriOS works. A few applications need SSE.
	- Haiku boots, but takes very long (around 30 minutes).
	- No Android version seems to work, you still get a shell.
	- Windows 1, 95 and 98 work. Other versions currently don't.
	- Many hobby operating systems work.
	- Modern operating systems that require an APIC don't work.

	You can get some infos on the disk images here: https://github.com/copy/images.


	How can I contribute?
	-

	- Add new features (hardware devices, fill holes in the CPU), fix bugs. Check
	out the issues section and contact me if you need help.
	- Report bugs.
	- If you want to donate, let me know.

	License
	-

	Simplified BSD License, see [LICENSE](LICENSE), unless otherwise noted.


	Credits
	-

	- CPU test cases via QEMU, http://wiki.qemu.org/Main_Page
	- [Disk Images](https://github.com/copy/images)
	- [The jor1k project](https://github.com/s-macke/jor1k) for 9p, filesystem and uart drivers
	- [WinWorld](https://winworldpc.com/) sources of some old operating systems


	More questions?
	-

	Shoot me an email to `copy@copy.sh`. Please don't tell about bugs via mail,
	create a bug report on GitHub instead.


	Author
	-

	Fabian Hemmer (http://copy.sh/, `copy@copy.sh`)