pub const HW = enum(u32) {
    CPU_CYCLES,
    INSTRUCTIONS,
    CACHE_REFERENCES,
    CACHE_MISSES,
    BRANCH_INSTRUCTIONS,
    BRANCH_MISSES,
    BUS_CYCLES,
    STALLED_CYCLES_FRONTEND,
    STALLED_CYCLES_BACKEND,
    REF_CPU_CYCLES,
    MAX,

    pub const CACHE = enum(u32) {
        L1D,
        L1I,
        LL,
        DTLB,
        ITLB,
        BPU,
        NODE,
        MAX,

        pub const OP = enum(u32) {
            READ,
            WRITE,
            PREFETCH,
            MAX,
        };

        pub const RESULT = enum(u32) {
            ACCESS,
            MISS,
            MAX,
        };
    };
}