mf_ipra
MFP2->mf_ipra = (uint8_t)~IA_SCSI;
MFP2->mf_ipra = (uint8_t)~IA_SCSI;
MFP->mf_ipra = (u_int8_t)~IA_TIMA;/* Clear pending interrupts */
ipra = MFP->mf_ipra;
MFP->mf_ipra = (uint8_t)~imra;
MFP->mf_ipra = (u_int8_t)~IA_ISA2;
} while (MFP->mf_ipra & IA_ISA2);