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konopoly · Apr 28, 2016 · 7a532a5 · 7a532a5
2 parents da55484 + d098587
commit 7a532a5
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Showing 3 changed files with 29 additions and 35 deletions.
diff --git a/ID/signextend.v b/ID/signextend.v
@@ -1,6 +1,3 @@
-//polyashenko
-
-`timescale 1ns / 1ps
 module signextend(opcode,one,two,three,extendOutput);
 	input[3:0] opcode,one,two,three;
 	output[15:0] extendOutput;

diff --git a/ID/signextend_fixture.v b/ID/signextend_fixture.v
diff --git a/ID/signextend_tb.v b/ID/signextend_tb.v
@@ -0,0 +1,29 @@
+`timescale 1ns / 1ps
+`include "signextend.v"
+
+module reg_tb();
+	reg[3:0] opcode,one,two,three;
+	wire[15:0] extendOutput;
+
+	signextend uut(opcode,one,two,three,extendOutput);
+
+	initial begin
+		$vcdpluson;
+		opcode = 4'b1000;
+		one = 1;
+		two = 2;
+		three = 3;
+		#20
+		opcode = 4'b0101;
+		one = 1;
+		two = 2;
+		three = 3;
+		#20
+		opcode = 4'b1100;
+		one = 1;
+		two = 2;
+		three = 3;
+		#20
+		$finish;
+	end
+endmodule