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Altera_Forum's avatar
Altera_Forum
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13 years ago

Quartus eliminates intermediate signal causing an overflow.

I have the following code: input signed b; input signed c; input signed d; output signed e; wire signed f; assign f = b*c/d; assign e = f I believe that Quartus is eliminating f and rep...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I tried something very similar to what BadOmen suggested and it worked: 

input signed  b;
 input signed  c;
 input signed  d;
 output signed  e;
 
 wire signed  g;
 
 assign g = b * c;
 assign e = g / d;
Thank you for telling me about the keep keyword. That will be very useful.

FvM, I think you mean chapter 4.4.1.

Thank you for your help.