Method address_fields

crates/virtual-machine/src/memory/cache.rs:120–125

(&self, addr: u64)

        let offset = addr & ((1u64 << self.block_bits) - 1);
        (tag, index, offset)
    }

    fn line_base_address(&self, tag: u64, index: u64) -> u64 {
        (tag << (self.block_bits + self.set_bits)) | (index << self.block_bits)
    }

    // Resolve an address to (set_idx, way_idx, was_miss). Misses fetch from the next
    // level and write back dirty victims; hits and fills update the LRU age.
    fn resolve_line(&mut self, addr: u64) -> Result<(usize, usize, bool), VmError> {