Reverted changeset r7089 on trunk.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7116 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/gnuradio-core/src/lib/filter/gri_iir.h b/gnuradio-core/src/lib/filter/gri_iir.h
index 61d3be44de73826dd0aedaf9ca76378fc031f63e..5bc67df5380c8a2bd018304da4baece8d50f6f91 100644 (file)
--- a/gnuradio-core/src/lib/filter/gri_iir.h
+++ b/gnuradio-core/src/lib/filter/gri_iir.h
@@ -143,19 +143,18 @@ gri_iir<i_type, o_type, tap_type>::filter (const i_type input)
   for (i = 1; i < m; i ++)
     acc += (d_fbtaps[i] * d_prev_output[latest_m + i]);
 
-  latest_n--;
-  latest_m--;
-  if (latest_n < 0)
-    latest_n += n;
-  if (latest_m < 0)
-    latest_m += m;
-
   // store the values twice to avoid having to handle wrap-around in the loop
   d_prev_output[latest_m] = acc;
   d_prev_output[latest_m+m] = acc;
   d_prev_input[latest_n] = input;
   d_prev_input[latest_n+n] = input;
 
+  latest_n--;
+  latest_m--;
+  if (latest_n < 0)
+    latest_n += n;
+  if (latest_m < 0)
+    latest_m += m;
 
   d_latest_m = latest_m;
   d_latest_n = latest_n;