PIO_DATA_REG
if (isapnp_read_byte(PIO_DATA_REG) & HP_82341D_XILINX_READY_BIT)
if (isapnp_read_byte(PIO_DATA_REG) & HP_82341D_XILINX_DONE_BIT)
isapnp_write_byte(PIO_DATA_REG, HP_82341D_NOT_PROG_BIT);
isapnp_write_byte(PIO_DATA_REG, 0x0);