create test2 to test a fully-associative 512B cache with 64B blocks
LRU
Merge branch 'master' of github.com:bitdiddle/mustached-hipster
git config --global branch.autosetuprebase always ...
test suite:
test2 full associativity
test3 replacement policy, LRU, Random, FIFO ..

next:
test4 2-level Cache

also cross validate (devise test that can distinguish two policies)