State Machine - CASE\WHEN and glitches

Thank you for the answers.

FvM:

I attached a Modelsim snapshot of the glitches, allow me explain.

The instructions from that part of the code are

--- NEXT Layer Rule
WHEN 37 => set_layer <= '1'; 
---- LOAD Bias Rule
WHEN 38 => set_bias_EN <= '1';
WHEN 39 => MAC_Advance <= '1'; 
WHEN 40 => MAC_Advance <= '0'; reset_bias_EN <= '1';

Between 37 and 38 MAC_Advance shoots and forces my accumulator to load a meaningless value.

kaz:

Yes I know there are some redundancies.

I tried to add them to remove the glitches, but as I realized they were pretty useless.

One more thing... you assumed that I passed timing.

i did, but the only thing i specified in timequest was the clock, i tought that such a simple design would work without definite timing costraints.

Maybe that's the reason I'm getting this strange behavior? If it's the case, could you suggest me how to costrain it properly?