WDC_ISA_AUXREG_OFFSET
tmp.c_ctlbase = addr + WDC_ISA_AUXREG_OFFSET;
WDC_ISA_AUXREG_OFFSET, WDC_ISA_AUXREG_NPORTS, 0, &wdr.ctl_ioh))
ia->ia_io[0].ir_addr + WDC_ISA_AUXREG_OFFSET,