Add data folder with extra modules

These modules are required for comparing modules that are generated by
synthesising in different simulators, as they will each synthesise to specific
hardware with assumptions on what is available

1 files changed, 38 insertions, 0 deletions

diff --git a/data/cells_cmos.v b/data/cells_cmos.v
new file mode 100644
index 0000000..b33ffef
--- /dev/null
+++ b/data/cells_cmos.v
@@ -0,0 +1,38 @@
+
+module NOT(A, Y);
+input A;
+output Y;
+assign Y = ~A;
+endmodule
+
+module NAND(A, B, Y);
+input A, B;
+output Y;
+assign Y = ~(A & B);
+endmodule
+
+module NOR(A, B, Y);
+input A, B;
+output Y;
+assign Y = ~(A | B);
+endmodule
+
+module DFF(C, D, Q);
+input C, D;
+output reg Q;
+always @(posedge C)
+	Q <= D;
+endmodule
+
+module DFFSR(C, D, Q, S, R);
+input C, D, S, R;
+output reg Q;
+always @(posedge C, posedge S, posedge R)
+	if (S)
+		Q <= 1'b1;
+	else if (R)
+		Q <= 1'b0;
+	else
+		Q <= D;
+endmodule
+