tt_mfp
tt_mfp.vec_adr = 0x58; /* Software EOI-Mode */
tt_mfp.vec_adr = 0x50; /* Automatic EOI-Mode */
tt_mfp.int_en_a = 0x00; /* turn off MFP-Ints */
tt_mfp.int_en_b = 0x00;
tt_mfp.int_mk_a = 0xff; /* no Masking */
tt_mfp.int_mk_b = 0xff;
if (hwreg_present(&tt_mfp.par_dt_reg)) {
tt_mfp.active_edge |= 0x80; /* SCSI int on L->H */