[Cryptech-Commits] [core/math/modexp] 03/05: Collapsed done. Removes one cycle from each montprod.

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joachim at secworks.se pushed a commit to branch perfopt
in repository core/math/modexp.

commit 6ef87307f881b52d66d7079b37ac147f5c2e902e
Author: Joachim Strömbergson <joachim at secworks.se>
Date:   Tue Jun 16 13:33:04 2015 +0200

    Collapsed done. Removes one cycle from each montprod.
---
 src/rtl/montprod.v | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/src/rtl/montprod.v b/src/rtl/montprod.v
index 9b112f4..7102e6e 100644
--- a/src/rtl/montprod.v
+++ b/src/rtl/montprod.v
@@ -78,7 +78,6 @@ module montprod(
   localparam CTRL_L_STALLPIPE_D2 = 4'hA;
   localparam CTRL_L_STALLPIPE_ES = 4'hB;
   localparam CTRL_EMIT_S         = 4'hC;
-  localparam CTRL_DONE           = 4'hD;
 
   localparam SMUX_0              = 2'h0;
   localparam SMUX_ADD_SM         = 2'h1;
@@ -594,19 +593,13 @@ module montprod(
                $display("EMIT_S word_index_reg: %d", word_index_reg);
              if (word_index_prev_reg == 8'h0)
                begin
-                 montprod_ctrl_new = CTRL_DONE;
+                 ready_new         = 1'b1;
+                 ready_we          = 1'b1;
+                 montprod_ctrl_new = CTRL_IDLE;
                  montprod_ctrl_we  = 1'b1;
                end
            end
 
-        CTRL_DONE:
-          begin
-            ready_new         = 1'b1;
-            ready_we          = 1'b1;
-            montprod_ctrl_new = CTRL_IDLE;
-            montprod_ctrl_we  = 1'b1;
-          end
-
         default:
           begin
           end