HelenOS sources

DP_ISR            181 uspace/drv/nic/ne2k/dp8390.c 		if (pio_read_8(ne2k->port + DP_ISR) != 0)
DP_ISR            306 uspace/drv/nic/ne2k/dp8390.c 	pio_write_8(ne2k->port + DP_ISR, 0xff);
DP_ISR            375 uspace/drv/nic/ne2k/dp8390.c 		if ((pio_read_8(ne2k->port + DP_ISR) & ISR_RST) != 0)
DP_ISR            385 uspace/drv/nic/ne2k/dp8390.c 		if ((pio_read_8(ne2k->port + DP_ISR) & ISR_RDC) != 0)
DP_ISR            389 uspace/drv/nic/ne2k/dp8390.c 	uint8_t val = pio_read_8(ne2k->port + DP_ISR);
DP_ISR            390 uspace/drv/nic/ne2k/dp8390.c 	pio_write_8(ne2k->port + DP_ISR, val & ~ISR_RDC);
DP_ISR            148 uspace/drv/nic/ne2k/ne2k.c 		ne2k_cmds[0].addr = ne2k->base_port + DP_ISR;