HelenOS sources
CR_PS_P0 126 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
CR_PS_P0 151 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_DM_RW | CR_PS_P0 | CR_STA);
CR_PS_P0 227 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
CR_PS_P0 239 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_DM_ABORT | CR_STP);
CR_PS_P0 245 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_DM_RW | CR_PS_P0 | CR_STA);
CR_PS_P0 295 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_STP | CR_DM_ABORT);
CR_PS_P0 344 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_DM_ABORT | CR_STA);
CR_PS_P0 501 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_STA);
CR_PS_P0 515 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
CR_PS_P0 680 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_DM_ABORT | CR_STA);
HelenOS homepage, sources at GitHub