f050810e2f
Fixed the behavior of the CD-ROM GET CONFIGURATION command when unimplemented features are requested; Fixed the behavior of the CD-ROM READ DVD STRUCTURE command in some situations and made it correctly report 05/30/02 for incompatible format; Reworked the PS/2 Model 80 Type 2 memory handling a bit; The emulator now allocates the few MB of space needed for pages for the entire 4 GB RAM space at the startup and only memset's it to 0 on hard reset - should make sure DMA page reads from/writes to memory-mapped devices no longer crash the emulator on invalidating the memory range; Applied app applicable PCem patches; The PS/1 Model 2133 now also applies PS/2-style NMI mask handling - fixes the 486 recompiler on this machine; Added the missing #include of "cpu/cpu.h" in io.c, fixes compiling when I/O tracing is enabled.
86Box
86Box (formerly known as PCem-X, PCem Experimental or PCem Unofficial) is a hypervisor and IBM PC system emulator that specializes in running old operating systems and software designed for IBM PC systems and compatibles from 1981 through fairly recent system designs based on the PCI bus.
86Box is released under the GNU General Public License, version 2. For more
information, see the LICENSE file.
Community
We operate an IRC channel and a Discord server for discussing anything related to retro computing and, of course, 86Box. We look forward to hearing from you!
Building
In order to compile 86Box from this repository, please follow this step-by-step guide:
- Download the development environment from http://tinyurl.com/pcemude. Afterwards, extract it to your desired location. Of course, also clone the repository in your desired location. Downloading ZIPs is not recommended, as it makes it more inconvenient to keep the code up-to-date. To avoid issues, make sure neither path has spaces in it.
- In the extracted environment folder, you will find a script called
mingw32_shell.bat. Launch it. There are other shell launching scripts in there, but you should not use them. - Once launched, run
pacman -Syuuin order to update the environment. Depending on the state of the downloaded DE, you may need to run it twice (once initially, and then again after re-entering the environment). Make sure to keep the enviroment up-to-date by re-running the command periodically. - Once the environment is fully updated,
cdinto your cloned86box\srcdirectory. - Run
make -jN -fmakefile.mingwto start the actual compilation process. SubstituteNwith the number of threads you want to use for the compilation process. The optimal number depends entirely on your processor, and it is up to you to determine the optimal number. A good starting point is the total number of threads (AKA Logical Processors) you have available. - If the compilation succeeded (which it almost always should), you will find
86Box.exein the src directory. - In order to test your fresh build, replace the
86Box.exein your current 86Box enviroment with your freshly built one. If you do not have a pre-existing 86Box environment, download the latest successful build from http://ci.86box.net, and the ROM set from http://tinyurl.com/rs20170915. - Enjoy using and testing the emulator! :)
If you encounter issues at any step or have additional questions, please join the IRC channel and wait patiently for someone to help you.
Nightly builds
For your convenience, we compile a number of 86Box builds per revision on our Jenkins instance.
| Regular | Optimized | Experimental |
|---|---|---|
Legend
- Regular builds are compiled using the settings in the building guide above. Use these if you don't know which build to use.
- Optimized builds have the same feature set as regular builds, but are optimized for every modern Intel and AMD processor architecture, which might improve the emulator's performance in certain scenarios.
- Experimental (Dev) builds are similar to regular builds but are compiled certain unfinished features enabled. These builds are not optimized.