MEM_BASE           26 arch/alpha/lib/stacktrace.c   (((INSTR) & (MAJOR_OP | MEM_BASE | MEM_OFF_SIGN)) == (STQ_OP | BASE_SP))
MEM_BASE         1250 drivers/pci/hotplug/cpqphp_pci.c 		u16 mem_base = readw(one_slot + MEM_BASE);