Forum: FPGA, VHDL & Verilog Round to nearest

von Da T. (danielts)

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Hi all,

What are the ways of implementation of "round to nearest" function.
It is an analogue of matlab "round" function. For example:

-2.5 is rounded to -3
2.5 is rounded to 3

Thanks in advance,

von Lothar M. (lkmiller) (Moderator)

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Three steps:
1. memorize sign (positive or negative value)
2. round the absolute (positive) value (if >=0.5 then round up)
3. apply sign from step 1 to result


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