#Running a game in dosbox how to#

Once 100% of the power of your computer's real CPU's one core is used, there is no further way to speed up DOSBox (it will actually start to slow down), unless you reduce the load generated by the non-CPU parts of DOSBox. You can see how much free time your real CPU's cores have by looking at the Task Manager in Windows 2000/XP/Vista/7 and the System Monitor in Windows 95/98/ME.

In this mode you can reduce the amount of cycles even more by hitting CTRL-F11 (you can go as low as you want) or raise it by hitting CTRL-F12 as much as you want, but you will be limited by the power of one core of your computer's CPU. If you for example set cycles=10000, then DOSBox window will display a line 'Cpu Speed: fixed 10000 cycles' at the top. You can force the slow or fast behavior by setting a fixed amount of cycles in the DOSBox's configuration file. But you can always manually force a different setting in the DOSBox's configuration file.

#Running a game in dosbox how to#

How to speed up/slow down DOSBox CPU Cycles (speed up/slow down)īy default (cycles=auto) DOSBox tries to detect whether a game needs to be run with as many instructions emulated per time interval as possible (cycles=max, sometimes this results in game working too fast or unstable), or whether to use fixed amount of cycles (cycles=3000, sometimes this results in game working too slow or too fast).