1 files changed, 86 insertions, 0 deletions
diff --git a/tests/xsthammer/cy_cells.v b/tests/xsthammer/cy_cells.v
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+++ b/tests/xsthammer/cy_cells.v
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+
+// Based on the simulation models from /opt/altera/13.0/quartus/eda/sim_lib/cycloneiii_atoms.v
+
+module cycloneiii_lcell_comb (dataa, datab, datac, datad, cin, combout, cout);
+
+input dataa, datab, datac, datad, cin;
+output combout, cout;
+
+parameter lut_mask = 16'hFFFF;
+parameter sum_lutc_input = "datac";
+parameter dont_touch = "off";
+parameter lpm_type = "cycloneiii_lcell_comb";
+
+reg cout_tmp, combout_tmp;
+reg [1:0] isum_lutc_input;
+
+// 4-input LUT function
+function lut4;
+	input [15:0] mask;
+	input dataa, datab, datac, datad;
+	begin
+	    lut4 = datad ? ( datac ? ( datab ? ( dataa ? mask[15] : mask[14])
+					     : ( dataa ? mask[13] : mask[12]))
+				   : ( datab ? ( dataa ? mask[11] : mask[10])
+					     : ( dataa ? mask[ 9] : mask[ 8])))
+			 : ( datac ? ( datab ? ( dataa ? mask[ 7] : mask[ 6])
+					     : ( dataa ? mask[ 5] : mask[ 4]))
+				   : ( datab ? ( dataa ? mask[ 3] : mask[ 2])
+					     : ( dataa ? mask[ 1] : mask[ 0])));
+	end
+endfunction
+
+initial
+	if (sum_lutc_input == "datac")
+		isum_lutc_input = 0;
+	else if (sum_lutc_input == "cin")
+		isum_lutc_input = 1;
+	else
+		isum_lutc_input = 2;
+
+always @* begin
+	if (isum_lutc_input == 0) // datac 
+		combout_tmp = lut4(lut_mask, dataa, datab, datac, datad);
+	else if (isum_lutc_input == 1) // cin
+		combout_tmp = lut4(lut_mask, dataa, datab, cin, datad);
+	cout_tmp = lut4(lut_mask, dataa, datab, cin, 'b0);
+end
+
+assign combout = combout_tmp;
+assign cout = cout_tmp;
+
+endmodule
+
+// ----------------------------------------------------------------------
+
+module cycloneiii_io_ibuf (i, ibar, o);
+
+parameter differential_mode = "false";
+parameter bus_hold = "false";
+parameter simulate_z_as = "Z";
+parameter lpm_type = "cycloneiii_io_ibuf";
+
+input i, ibar;
+output o;
+
+assign o = i;
+
+endmodule
+
+// ----------------------------------------------------------------------
+
+module cycloneiii_io_obuf (i, oe, seriesterminationcontrol, devoe, o, obar);
+
+parameter open_drain_output = "false";
+parameter bus_hold = "false";
+parameter lpm_type = "cycloneiii_io_obuf";
+
+input i, oe, devoe;
+input [15:0] seriesterminationcontrol; 
+output o, obar;
+
+assign o = i;
+assign obar = ~i;
+
+endmodule
+