[libre-riscv-dev] daily kan-ban update 14may2020

[Luke Kenneth Casson Leighton]

On Thu, May 14, 2020 at 4:49 PM Tobias Platen
<libre-soc at platen-software.de> wrote:

> Like Yesterday I am still working on the countzero.vhdl thing.

super.  btw i noticed that countzero.vhdl is two cycles.  feel free to
make the entire thing combinatorial (no use of sync).  we need the
algorithm, working, first.  making it faster by splitting across two
stages can be added later.

you'll see at line 98
https://github.com/antonblanchard/microwatt/blob/master/countzero.vhdl

that's a *synchronous* copy.  don't do that.  just make it a
combinatorial assignment.

l.