rIER
scsi_enable = Via1Base + VIA2 * 0x2000 + rIER;
via_reg(VIA2, rIER) = 0x7f; /* disable VIA2 int */
via_reg(VIA2, rIER) = 0x7f; /* disable RBV int */
via_reg(VIA2, rIER) = 0x7f; /* disable RBV int */
via_reg(VIA2, rIER) = 0x7f; /* disable RBV int */
via_reg(VIA2, rIER) = 0x7f; /* disable RBV int */
intbits = (via2_reg(vIFR + rIFR) & via2_reg(vIER + rIER));
via2_reg(rIER) = 0x80 | V2IF_SLOTINT;
via2_reg(rIER) = 0x80 | V2IF_ASC;
via2_reg(rIER) = 0x80 | V2IF_ASC;
via2_reg(rIER) = 0x80 | flags;
via2_reg(rIER) = flags;