开源软件名称:v86
开源软件地址:https://gitee.com/mirrors/v86
开源软件介绍:
v86 emulates an x86-compatible CPU and hardware. Machine code is translated toWebAssembly modules at runtime in order to achieve decent performance. Here's alist of emulated hardware: - An x86-compatible CPU. The instruction set is around Pentium III level,including full SSE2 support. Some features are missing, in particular:
- Task gates, far calls in protected mode
- Some 16 bit protected mode features
- Single stepping (trap flag, debug registers)
- Some exceptions, especially floating point and SSE
- Multicore
- 64-bit extensions
- A floating point unit (FPU). Calculations are done using the BerkeleySoftFloat library and therefore should be precise (but slow). Trigonometricand log functions are emulated using 64-bit floats and may be less precise.Not all FPU exceptions are supported.
- 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).
- Partial APIC support.
- A CMOS Real Time Clock (RTC).
- A generic VGA card 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.
- A SoundBlaster 16 sound card.
DemosArch Linux —Damn Small Linux —Buildroot Linux —ReactOS —Windows 2000 —Windows 98 —Windows 95 —Windows 1.01 —MS-DOS —FreeDOS —FreeBSD —OpenBSD —9front —Haiku —Oberon —KolibriOS —QNX CompatibilityHere's an overview of the operating systems supported in v86: - Linux works pretty well. 64-bit kernels are not supported.
- Damn Small Linux (2.4 Kernel) works.
- All tested versions of TinyCore work.
- BuildRoot can be used to build a minimalimage. humphd/browser-vm has someuseful scripts for building one.
- Archlinux works. See archlinux.md for building an image.
- Debian works. An image can be built from a Dockerfile, see tools/docker/debian/.
- Ubuntu up to 10.04 works.
- Alpine Linux works.
- ReactOS works.
- FreeDOS, Windows 1.01 and MS-DOS run very well.
- KolibriOS works.
- Haiku works.
- Android x86 1.6-r2 works if one selects VESA mode at the boot prompt. Newerversions may work if compiled without SSE3. See #224.
- Windows 1, 3.0, 95, 98, ME and 2000 work. Other versions currently don't (see #86, #208).
- In Windows 2000 and higher the PC type has to be changed from ACPI PC to Standard PC
- Many hobby operating systems work.
- 9front works.
- Plan 9 doesn't work.
- QNX works.
- OS/2 doesn't work.
- FreeBSD works.
- OpenBSD works with a specific boot configuration. At the
boot> prompt typeboot -c , then at the UKC> prompt disable mpbios and exit . - NetBSD works only with a custom kernel, see #350.
- Older versions of SerenityOS work (1.0.gc460f4a is a known working version).
You can get some infos on the disk images here: https://github.com/copy/images. How to build, run and embed?You need: - make
- Rust with the wasm32-unknown-unknown target
- A version of clang compatible with Rust
- java (for Closure Compiler, not necessary when using
debug.html ) - nodejs (a recent version is required, v16.11.1 is known to be working)
- To run tests: nasm, gdb, qemu-system, gcc, libc-i386 and rustfmt
See tools/docker/test-image/Dockerfilefor a full setup on Debian orWSL. - Run
make to build the debug build (at debug.html ). - Run
make all to build the optimized build (at index.html ). - 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 http module. - If you only want to embed v86 in a webpage you can use libv86.js. For usage,check out the examples. You can download it from the release section.
Alternatively, to build using docker- If you have docker installed, you can run the whole system inside a container.
- See
tools/docker/exec to find Dockerfile required for this. - You can run
docker build -f tools/docker/exec/Dockerfile -t v86:alpine-3.14 . from the root directory to generate docker image. - Then you can simply run
docker run -it -p 8000:8000 v86:alpine-3.14 to start the server. - Check
localhost:8000 for hosted server.
TestingThe disk images for testing are not included in this repository. You candownload them directly from the website using: wget -P images/ https://k.copy.sh/{linux.iso,linux4.iso,buildroot-bzimage.bin,openbsd-floppy.img,kolibri.img,windows101.img,os8.img,freedos722.img}
Run all tests: make jshint rustfmt kvm-unit-test nasmtests nasmtests-force-jit expect-tests jitpagingtests qemutests rust-test tests See tests/Readme.md for more infos. API examplesUsing v86 for your own purposes is as easy as: 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 starter.js. Licensev86 is distributed under the terms of the Simplified BSD License, seeLICENSE. The following third-party dependencies are included in therepository under their own licenses: CreditsMore questions?Shoot me an email to [email protected] . Please report bugs on GitHub. AuthorFabian Hemmer (https://copy.sh/, [email protected] ) |
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