PCI_STATUS_ERROR_BITS
pci_status &= PCI_STATUS_ERROR_BITS;
pci_status | PCI_STATUS_ERROR_BITS);
pci_err | PCI_STATUS_ERROR_BITS);
status |= PCI_STATUS_ERROR_BITS;
outpw(PCI_C(PCI_STATUS), word | PCI_STATUS_ERROR_BITS);
.w1c = PCI_STATUS_ERROR_BITS << 16,
.w1c = PCI_STATUS_ERROR_BITS << 16,
status &= PCI_STATUS_ERROR_BITS;