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TESTBENCH/full_adder_tb.v

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+// Name: full_adder_tb.v
+// Module: FULL_ADDER_TB
+//
+// Notes: - Testbench for full adder
+//
+// Revision History:
+//
+// Version	Date		Who		email			note
+//------------------------------------------------------------------------------------------
+//  1.0     Sep 10, 2014	Kaushik Patra	kpatra@sjsu.edu		Initial creation
+//------------------------------------------------------------------------------------------
+`include "../prj_definition.v"
+
+module FULL_ADDER_TB;
+reg A, B, CI;
+wire S, CO;
+
+reg [`DATA_INDEX_LIMIT:0] result[0:7];
+
+integer i;
+
+FULL_ADDER fa_inst(.S(S), .CO(CO), .A(A), .B(B), .CI(CI));
+
+initial
+begin
+A=0; B=0; CI=0;
+#1 result[0] = 32'h00000000 | {CO,S};
+
+for(i=1; i<8; i=i+1) 
+begin
+#1 CI=i[2]; A=i[1]; B=i[0];
+#1 result[i] = 32'h00000000 | {CO,S};
+end
+
+#1 
+$writememh("./OUTPUT/full_adder.out",result);
+$stop;
+
+end
+endmodule