[Àû¿ë´ë»ó: DOSBox-x]

Start the DOS virtual machine with the sound blaster IRQ already unmasked at the PIC.

Some early DOS games/demos that support Sound Blaster expect the IRQ to fire but make no attempt to unmask the IRQ. If audio cuts out no matter what IRQ you try, then try setting this option.

Option is needed for:
Public NMI "jump" demo (1992)
