PCI_MEM_END
pci_mem_end = PCI_MEM_END;
end = min(PCI_MEM_END, pa->pa_memex->ex_end);
#ifndef PCI_MEM_END
end = min(PCI_MEM_END, pa->pa_memex->ex_end);
end = min(PCI_MEM_END, pa->pa_memex->ex_end);
end = min(PCI_MEM_END, ex->ex_end);
#ifndef PCI_MEM_END
#ifndef PCI_MEM_END
end = min(PCI_MEM_END, pa->pa_memex->ex_end);