CPU_ID_IMPLEMENTOR_MASK - FreeBSD

Symbol: CPU_ID_IMPLEMENTOR_MASK

sys/arm/arm/cpuinfo.c

if ((cpuinfo.midr & CPU_ID_IMPLEMENTOR_MASK) == CPU_ID_ARM_LTD) {

sys/arm/include/armreg.h

(CPU_ID_IMPLEMENTOR_MASK | CPU_ID_ARCH_MASK | CPU_ID_PARTNO_MASK)