Non-symmetric Rounding to Positive - 7.2 English

FIR Compiler (PG149)

Document ID
PG149
Release Date
2022-10-26
Version
7.2 English

In this rounding mode, a binary value corresponding to 0.5 is added to the accumulator result and the m LSBs are removed; this is equivalent to the MATLAB software function floor(x+0.5) . The addition can usually be done in most filter configurations with little or no resource cost in hardware using the DSP slice features. It has the disadvantage of being biased towards the positive by 2 -(m+1) .