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authorMiodrag Milanović <mmicko@gmail.com>2019-10-18 10:54:28 +0200
committerGitHub <noreply@github.com>2019-10-18 10:54:28 +0200
commitb4d765054897f7ee388b54d907fd8ce607db2d58 (patch)
treea625838a0efbfb0176a57887c208467a7addd0a6 /tests/ecp5/mux.v
parentb659082e4a72209af62a19668800bb6334a437d7 (diff)
parentab4899a2d02b994d79e4aa223eb743793b9a60b3 (diff)
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Merge branch 'master' into mmicko/efinix
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1 files changed, 66 insertions, 0 deletions
diff --git a/tests/ecp5/mux.v b/tests/ecp5/mux.v
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+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
+