1 files changed, 4 insertions, 5 deletions
diff --git a/src/arithmetic_unit.v b/src/arithmetic_unit.v
index be087a7..64ec0f9 100644
--- a/src/arithmetic_unit.v
+++ b/src/arithmetic_unit.v
@@ -3,21 +3,20 @@ module arithmetic_unit #(
 )(
   input [N-1:0] A, B,
   input [1:0] OP, // 00: ADD, 01: SUB, 11: SLT
-  output [N-1:0] RESULT,
-  output OVERFLOW
+  output [N-1:0] RESULT
 );
 
 wire [N-1:0] b, sum;
-wire cin, altb;
+wire cin, altb, overflow;
 
 assign b = OP[0] ? ~B : B;
 assign cin = OP[0];
 
 assign sum = A + b + cin;
 
-assign OVERFLOW = ~(A[N-1] ^ B[N-1] ^ OP[0]) & (A[N-1] ^ sum[N-1]);
+assign overflow = ~(A[N-1] ^ B[N-1] ^ OP[0]) & (A[N-1] ^ sum[N-1]);
 
-assign altb = OVERFLOW ^ sum[N-1];
+assign altb = overflow ^ sum[N-1];
 
 assign RESULT = OP[1] ? {{(N-1){1'b0}}, altb} : sum;