[Cryptech-Commits] [core/math/modexp] 02/03: Added another state for setting s_mem_read_addr to allow shortcutting one cycle in each loop.

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

commit 97976d1f01665b9d5b5469ad4b43d275824a41d9
Author: Joachim Strömbergson <joachim at secworks.se>
Date:   Thu Jun 25 09:42:31 2015 +0200

    Added another state for setting s_mem_read_addr to allow shortcutting one cycle in each loop.
---
 src/rtl/montprod.v | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/rtl/montprod.v b/src/rtl/montprod.v
index 6959833..ee87b97 100644
--- a/src/rtl/montprod.v
+++ b/src/rtl/montprod.v
@@ -319,6 +319,11 @@ module montprod #(parameter OPW = 32, parameter ADW = 8)
             s_mem_read_addr = length_m1;
           end
 
+        CTRL_LOOP_BQ:
+          begin
+            s_mem_read_addr = length_m1;
+          end
+
         CTRL_CALC_ADD:
           begin
             //s = (s + q*M + b*A) >>> 1;, if(b==1) S+= A. Takes (1..length) cycles.