[Àû¿ë´ë»ó: 0.74_SVN_new, DOSBox-x]

If set, memory returned by the INT 21h allocation call is zeroed first.

This is NOT what DOS actually does, but if set, can help certain DOS games and demos cope with problems related to uninitialized variables in the data or stack segment.

If you intend to run a game or demo known to have this problem (Second Unreal, for example), set to true, else set to false. When enabled this option may incur a slight to moderate performance penalty.