Difference between revisions of "Configuration:CPU"

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Default is '''auto'''.
Default is '''auto'''.
==== cycleup = ''nnn'' ====
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Amount of cycles to increase with [[SpecialKeys|keycombo]].
Default is '''500'''. Setting it lower than 100 will be a percentage.
==== cycledown = ''nnn'' ====
==== cycledown = ''nnn'' ====

Revision as of 20:41, 16 April 2010

The CPU section controls how DOSBox tries to emulate the CPU, how fast the emulation should be, and to adjust it. DOSBox offers 4 different methods of CPU emulation.

core = simple | normal| full | dynamic | auto

CPU core used in emulation. auto switches to dynamic if appropriate.

Default is auto.

Setting dynamic gave a significant performance boost in Wolfenstein 3D.

cputype = auto | 386 | 386_slow | 486_slow | pentium_slow | 386_prefetch

CPU Type used in emulation. auto is the fastest choice.

(since 0.73)

Default is auto.

cycles = nnnn | max | auto

Amount of instructions DOSBox tries to emulate each millisecond. Set to max to automatically run as many cycles as possible. auto setting switches to max if appropriate.

OBS: Setting this higher than your machine can handle is bad!

Default is auto.

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cycledown = nnn

Amount of cycles to decrease with keycombo.

Default is 20. Setting it lower than 100 will be a percentage.