MIDR_REVISION_MASK 114 kernel/arch/arm32/src/cpu/cpu.c cpu->rev_num = (ident >> MIDR_REVISION_SHIFT) & MIDR_REVISION_MASK; MIDR_REVISION_MASK 84 kernel/arch/arm64/src/cpu/cpu.c CPU->arch.revision = (midr & MIDR_REVISION_MASK) >> MIDR_REVISION_SHIFT;HelenOS homepage, sources at GitHub