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-rw-r--r--src/rtl/chacha_qr.v4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/rtl/chacha_qr.v b/src/rtl/chacha_qr.v
index 5189030..ba68d51 100644
--- a/src/rtl/chacha_qr.v
+++ b/src/rtl/chacha_qr.v
@@ -130,7 +130,7 @@ module chacha_qr(
a0 = a + b;
a0_new = a0;
- d0 = d ^ a0;
+ d0 = d ^ a0_reg;
d1 = {d0[15 : 0], d0[31 : 16]};
c0 = c + d1;
@@ -139,7 +139,7 @@ module chacha_qr(
b0 = b ^ c0;
b1 = {b0[19 : 0], b0[31 : 20]};
- a1 = a0 + b1;
+ a1 = a0_reg + b1;
// a1_new = a1;
d2 = d1 ^ a1;