[Libre-soc-bugs] [Bug 485] Create I-Cache from microwatt icache.vhdl

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Wed Sep 30 20:16:39 BST 2020


--- Comment #27 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Cole Poirier from comment #26)
> Fantastic! Thanks for fixing it!

it was after looking at the gtkwave i noticed that the SRAM module only sent
ack every other cycle.

but... the r.store_row was advanced *even when no ack had yet come in*

> Do you want me to work on the
> memory-dictionary test utility that we discussed yesterday?

yes and do the comment corrections that you missed.

a dictionary memory test based on wb_get will allow very large addresses to be
sent and also lots of them.

if you do several thousand this will create some cache flush (evictions) and we
will find potential errors that might otherwise be missed.

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