[Àû¿ë´ë»ó: 0.74_SVN_new, DOSBox-x]

Emulate 2nd (AT) DMA controller (default). Set to 0 if you wish to emulate a PC/XT system without 16-bit DMA.

Note: mainline DOSBox automatically disables 16-bit DMA when machine=cga or machine=hercules, while DOSBox-X does not.