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RTL complier warning: Detected combinational arc in sequential cell

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lordsathish

lordsathish

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Hi everyone...
I'm getting a warning while i tried to synthesis a carry look a head adder in RTL complier. The warning say "Detected combinational arc in sequential cell".
what does this mean. How can i correct it...?

Thank you...
 

Re: RTL complier warning

please atleast tell me what is combinational ring...
 

Re: RTL complier warning

I only know a combinational loop, that is a latch created in logic, that may be unintended, but could be also by design and shouldn't be corrected then.
 

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