AdvReadByteRegister
ints = AdvReadByteRegister(iop_base, IOPB_GPIO_DATA);
(ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1),
(((AdvReadByteRegister((iop_base), IOPB_CHIP_ID_1) == \
AdvReadByteRegister((iop_base), IOPB_CHIP_TYPE_REV)
byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST)
byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST)
byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG);