[Cryptech-Commits] [core/math/modexp] 02/02: Consolidated address settings, removed stale s logic mux control, removed extra lsw set.

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

commit c54b20ea19ebbbd8fb646950c4608d89eb2b60e7
Author: Joachim Strömbergson <joachim at secworks.se>
Date:   Mon Jun 22 15:15:04 2015 +0200

    Consolidated address settings, removed stale s logic mux control, removed extra lsw set.
---
 src/rtl/montprod.v | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/rtl/montprod.v b/src/rtl/montprod.v
index b03bf94..93ddacf 100644
--- a/src/rtl/montprod.v
+++ b/src/rtl/montprod.v
@@ -300,10 +300,10 @@ module montprod(
 
 
       if (montprod_ctrl_reg == CTRL_LOOP_ITER)
-        opa_addr_reg = length_m1;
-
-      if (montprod_ctrl_reg == CTRL_LOOP_ITER)
-          s_mem_addr = length_m1;
+        begin
+          opa_addr_reg = length_m1;
+          s_mem_addr   = length_m1;
+        end
 
       if (montprod_ctrl_reg == CTRL_EMIT_S)
         tmp_result_we = 1'b1;
@@ -470,7 +470,7 @@ module montprod(
               begin
                 ready_new            = 1'b0;
                 ready_we             = 1'b1;
-                first_iteration_new  = 1'b0;
+                first_iteration_new  = 1'b1;
                 first_iteration_we   = 1'b1;
                 reset_word_index_lsw = 1'b1;
                 montprod_ctrl_new    = CTRL_INIT_S;
@@ -480,10 +480,9 @@ module montprod(
 
         CTRL_INIT_S:
           begin
-            s_mux_new    = SMUX_0; // write 0
-
             if (word_index_reg == 8'h0)
               begin
+                loop_ctr_set      = 1'b1;
                 montprod_ctrl_new = CTRL_WAIT;
                 montprod_ctrl_we  = 1'b1;
               end
@@ -501,7 +500,6 @@ module montprod(
         CTRL_LOOP_ITER:
           begin
             b_bit_index_we       = 1'b1;
-            reset_word_index_lsw = 1'b1;
             montprod_ctrl_new    = CTRL_LOOP_BQ;
             montprod_ctrl_we     = 1'b1;
           end