HelenOS sources
CR_STP 179 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_STP | CR_DM_ABORT);
CR_STP 204 uspace/drv/nic/ne2k/dp8390.c if ((val & (CR_STP | CR_TXP | CR_DM_ABORT)) != (CR_STP | CR_DM_ABORT))
CR_STP 229 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_DM_ABORT | CR_STP);
CR_STP 285 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P0 | CR_STP | CR_DM_ABORT);
CR_STP 313 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P1 | CR_DM_ABORT | CR_STP);
CR_STP 357 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_STP | CR_DM_ABORT);
CR_STP 370 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_STP | CR_DM_ABORT);
CR_STP 658 uspace/drv/nic/ne2k/dp8390.c pio_write_8(ne2k->port + DP_CR, CR_PS_P1 | CR_DM_ABORT | CR_STP);
HelenOS homepage, sources at GitHub