diff --git a/fpga/sim/bufgce.sv b/fpga/sim/bufgce.sv
deleted file mode 100644
index becf25eba..000000000
--- a/fpga/sim/bufgce.sv
+++ /dev/null
@@ -1,11 +0,0 @@
-module BUFGCE (input logic I, input logic CE, output logic O);
-
-  logic 	CE_Q;
-  always_latch begin
-    if(~I) begin
-      CE_Q <= CE;
-    end
-  end
-  assign O = CE_Q & I;
-
-endmodule
diff --git a/fpga/sim/bufgce_div.sv b/fpga/sim/bufgce_div.sv
deleted file mode 100644
index da2aa059c..000000000
--- a/fpga/sim/bufgce_div.sv
+++ /dev/null
@@ -1,32 +0,0 @@
-module BUFGCE_DIV #(parameter string DivideAmt = "1")
-  (input logic I, input logic CLR, input logic CE, output logic O);
-
-  integer PulseCount = 0;
-  logic   Q;
-  
-  always_ff @(posedge I, posedge CLR) begin
-    if(CLR) PulseCount <= 0;
-    else begin
-      if(PulseCount < (DivideAmt.atoi()/2 - 1))
-	PulseCount <= PulseCount + 1;
-      else
-	PulseCount <= 0;
-    end
-  end
-
-  assign zero = PulseCount == 0;
-  
-
-  flopenr #(1) ToggleFlipFLop
-    (.d(~Q),
-     .q(Q),
-     .clk(I),
-     .reset(CLR),                     // reset when told by outside
-     .en(zero));        // only update when counter overflows
-
-  if (DivideAmt != "1")
-    assign O = Q;
-  else
-    assign O = I;
-
-endmodule
diff --git a/fpga/sim/bufgmux.sv b/fpga/sim/bufgmux.sv
deleted file mode 100644
index 047a6e529..000000000
--- a/fpga/sim/bufgmux.sv
+++ /dev/null
@@ -1,4 +0,0 @@
-module BUFGMUX(input logic I1, input logic I0, input logic S, output logic O);
-
-  assign O = S ? I1 : I0;
-endmodule