V1IF_ADBRDY
if (intbits & V1IF_ADBRDY) {
via_reg(VIA1, vIFR) = V1IF_ADBRDY;
#define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
V2IF_SCSIDRQ | V1IF_ADBRDY)
#define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
V2IF_SCSIDRQ | V1IF_ADBRDY)