fpga added

gowin/bttn/src/addition.v

@@ -0,0 +1,20 @@
+module addition (
+    input [3:0] A, B,
+    input CarryIN,
+    output [3:0] Y,
+    output CarryOUT,
+    output overflow
+);
+
+wire [2:0] Carry4;
+
+fulladder f0(.A(A[0]), .B(B[0]), .Carry(CarryIN), .Sum(Y[0]), .CarryO(Carry4[0]));
+fulladder f1(.A(A[1]), .B(B[1]), .Carry(Carry4[0]), .Sum(Y[1]), .CarryO(Carry4[1]));
+fulladder f2(.A(A[2]), .B(B[2]), .Carry(Carry4[1]), .Sum(Y[2]), .CarryO(Carry4[2]));
+fulladder f3(.A(A[3]), .B(B[3]), .Carry(Carry4[2]), .Sum(Y[3]), .CarryO(CarryOUT));
+
+
+//overflowDetect od1 (.opCode(2'b01), .A(A), .B(B), .Y(Y), .CarryOUT(CarryOUT), .overflowDetect(overflow)); (KULLANILMAYACAK!!!!)
+xor ov1 (overflow, Carry4[2], CarryOUT);
+
+endmodule