[Àû¿ë´ë»ó: DOSBox-x]

Minimum free segment value to leave free.

At startup, the DOS kernel will allocate memory
up to this point.

This can be used to deal with EXEPACK issues
or DOS programs that cannot be loaded too low
in memory.

This differs from 'minimum mcb segment' in that
this affects the lowest free block instead of the
starting point of the mcb chain.