Added comment on how to use (g_fil_ppf.wb_factor-1 - P) to try impact of reversed.

libraries/dsp/filter/src/vhdl/fil_ppf_wide.vhd

@@ -235,7 +235,7 @@ begin
     generic map (
       g_fil_ppf           => c_fil_ppf_arr(P),
       g_fil_ppf_pipeline  => g_fil_ppf_pipeline,
-      g_file_index_arr    => c_file_index_arr2(P),
+      g_file_index_arr    => c_file_index_arr2(P),  -- use (g_fil_ppf.wb_factor-1 - P) to try impact of reversed WB FIR coefficients
       g_coefs_file_prefix => g_coefs_file_prefix 
     )
     port map (