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Altera_Forum
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12 years ago

three stages for a shifter (shifting by 0~7 bits)

Is there a way to implement a shifter (shifting by 0~7 bits) solely based on combinational logic? If it is a 3-stage shifter, the output of the previous shifter will be further shifted by all the shi...
Altera_Forum's avatar
Altera_Forum
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12 years ago

If you want a logical shift it's << and >> by a non-constant. For arithmetic shifts like anakha said use >>> and <<< by a non-constant.

Since you are not using a pipelined shifter there is no point describing the shifting operation in multiple stages since the built in operator will implement something more optimized (if you hand coded multiple stages Quartus would restructure it anyway)