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authorPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2017-02-12 22:10:17 +0300
committerPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2017-02-12 22:10:17 +0300
commit747c165611c3016c997e092797bc20a4f900cdea (patch)
treeda11c5d240fc8a54ca37720d6a4ad863720e9c9e /rtl/modular/modular_invertor/modinv_clog2.v
Initial commit of base point multiplier core for ECDSA curve P-384.
Diffstat (limited to 'rtl/modular/modular_invertor/modinv_clog2.v')
-rw-r--r--rtl/modular/modular_invertor/modinv_clog2.v10
1 files changed, 10 insertions, 0 deletions
diff --git a/rtl/modular/modular_invertor/modinv_clog2.v b/rtl/modular/modular_invertor/modinv_clog2.v
new file mode 100644
index 0000000..2f7b64d
--- /dev/null
+++ b/rtl/modular/modular_invertor/modinv_clog2.v
@@ -0,0 +1,10 @@
+function integer clog2;
+ input integer value;
+ integer result;
+ begin
+ value = value - 1;
+ for (result = 0; value > 0; result = result + 1)
+ value = value >> 1;
+ clog2 = result;
+ end
+endfunction