![]() ![]() In this case, I've doubled the default cycle count to 6000. This changes the "cycle count", which you can see at the top of the interface window. If a game is running too slowly, you can speed up DOSBox's virtual CPU by pressing Ctrl+F12. Some games that were designed to run on Pentium processors may run too slowly at the default settings. If a game is running too quickly, you can slow down DOSBox's virtual CPU by pressing Ctrl+F11. If you try to run a game designed for the original IBM PC or XT on a faster computer, it might run way too fast. ![]() Because there was only type of PC, the very first DOS games were designed to run at 4.77 MHz. In the beginning of the PC, there was only one type of PC, which used an Intel 8088 processor running at 4.77 MHz. ![]() If you're satisfied with the way the game is playing, you can switch to full screen mode by pressing Alt+Enter, and now you're playing just like on a real DOS computer! DOSBox will play most games perfectly using the default settings. You can switch to the mounted drive by typing the name of the drive. Now the folder that Jetpack is in is mounted as the C: drive. Note that folder names aren't case sensitive in Windows, but may be in other operating systems. You must mount a virtual drive in order to run a game in DOSBox. You can even use "C:" as the name for your virtual drive, even if that's the drive where your game is. You can assign any letter you want, except for Z:, which is being used by DOSBox. (Always replace code examples with the actual drive and folder names where your game is located.) DOSBox is going to pretend that some folder on your hard drive is really a hard drive (a virtual drive), which you accomplish by mounting the virtual drive. Let's say that you have a folder on your C: drive called DOSGAMES, and a folder inside it called JETPACK. First, you need to know where your game is. This is the part where people who aren't familiar with DOS may need some help. If you use Windows, DOSBox will be added to your Start Menu. Download the version for your operating system and install it. ![]() The other great thing about DOSBox is that it's free.Īnyway, you can get DOSBox from the here, or from DOSBox's website. If, after reading this tutorial, you don't agree that DOSBox is incredibly easy to use, I'll give you your money back! Oh, right. Either way, DOSBox is easy to use, once you understand it. If you're from the age of point-and-click GUIs, you may need a bit of extra help. Almost all DOS games play perfectly in an emulator called DOSBox, which is available for Windows, Linux, OS/2, BeOS, and Mac OS X.įor people who are used to the DOS operating system, or command line operating systems in general, DOSBox is pretty straightforward. Windows Vista apparently doesn't play DOS games at all. The sound could be missing, the speed could be wrong, or the game might not work at all. Many DOS games stopped working reliably when DOS was removed from Windows, starting with Windows XP. Hence the -t parameter simply changes the mount type.Basic DOSbox tutorial (click on images to enlarge them) dir is left out of the last command, since its already default. The -t cdrom part will mount as CD-ROM, other options include: dir (default) and floppy. The MOUNT command is used for mounting, and the letter represents the drive letter that you want to assign to whatever it is you are mounting. # Lines in this section will be run at startup. To automatically mount a directory as your c drive, and d as the CD-ROM drive, the section should look like: Simply open it in your favorite editor, then scroll all the way to the bottom of the file, and add your own commands in the section of the file. To automatically mount a drive when starting DosBox, you can add a few extra lines to the options file. Imgmount E C:\images\my-image-file.iso -t iso It is also possible to mount iso files, this is done with the imgmount command: To mount a directory as c, type the following command: A common use is to mount a directory full of dos games as your c drive. The mount command is used to mount directories ad virtual drives in DosBox. ![]()
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