Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
17049 Discussions

cos() function in Verilog

Altera_Forum
Honored Contributor II
‎07-19-2013 08:36 AM
1,956 Views

Maybe this question is stupid, but how would people take care of, say, cos(42) and log2(3) in Verilog? Thanks.

0 Kudos

Link Copied

3 Replies
Altera_Forum
Honored Contributor II
‎07-19-2013 09:52 AM
1,049 Views

Use a look up table, or CORDIC

0 Kudos
Copy link
Altera_Forum
Honored Contributor II
‎07-19-2013 02:30 PM
1,049 Views

If you have ample resources available (if area is not your top concern right now), you can also use ALTFP_SINCOS and ALTFP_LOG megafunctions.

0 Kudos
Copy link
Altera_Forum
Honored Contributor II
‎07-19-2013 05:17 PM
1,049 Views

Well, use CORDIC to calculate cos() is straight forward. But what is the procedure to do log2(3) in CORDIC?

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.