Symbol: SBP_IRQ_MPU401
sys/dev/isa/sbdsp.c
1635
if ((irq & (SBP_IRQ_DMA8 | SBP_IRQ_DMA16 | SBP_IRQ_MPU401))
sys/dev/isa/sbdsp.c
1661
if ((irq & SBP_IRQ_MPU401) && sc_mpu) {