Merge pull request #1454 from YosysHQ/mmicko/common_tests

Share common tests

1 files changed, 60 insertions, 0 deletions

diff --git a/tests/arch/common/mux.v b/tests/arch/common/mux.v
new file mode 100644
index 000000000..71c1ac7f2
--- /dev/null
+++ b/tests/arch/common/mux.v
@@ -0,0 +1,60 @@
+module mux2 (S,A,B,Y);
+    input S;
+    input A,B;
+    output reg Y;
+
+    always @(*)
+		Y = (S)? B : A;
+endmodule
+
+module mux4 ( S, D, Y );
+    input[1:0] S;
+    input[3:0] D;
+    output Y;
+
+    reg Y;
+    wire[1:0] S;
+    wire[3:0] D;
+
+    always @*
+    begin
+        case( S )
+            0 : Y = D[0];
+            1 : Y = D[1];
+            2 : Y = D[2];
+            3 : Y = D[3];
+        endcase
+    end
+endmodule
+
+module mux8 ( S, D, Y );
+    input[2:0] S;
+    input[7:0] D;
+    output Y;
+
+    reg Y;
+    wire[2:0] S;
+    wire[7:0] D;
+
+    always @*
+    begin
+        case( S )
+            0 : Y = D[0];
+            1 : Y = D[1];
+            2 : Y = D[2];
+            3 : Y = D[3];
+            4 : Y = D[4];
+            5 : Y = D[5];
+            6 : Y = D[6];
+            7 : Y = D[7];
+        endcase
+    end
+endmodule
+
+module mux16 (D, S, Y);
+ 	input  [15:0] D;
+ 	input  [3:0] S;
+ 	output Y;
+
+    assign Y = D[S];
+endmodule