cacheflush − flush instruction and data caches [ range ] may be used without a range specified to flush the entire instruction and data caches. With a range specified, the instruction and data caches are flushed as indicated by the range. The range of addresses should all be in k0seg or have valid, cacheable mappings established in the translation buffer. Ranges may be specified in the following three ways: base Flush the contents of the word at address base#count Flush the contents of words starting at address base:limit Flush the contents of words with addresses >= to and <