X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/75ab1e9975f64989ee18450eb09b66b33ec5def8..e7fb589a21ee26ad897e03cbd0d7a647d9cd97e5:/System.v

diff --git a/System.v b/System.v
index dc70cc0..cdcee09 100644
--- a/System.v
+++ b/System.v
@@ -83,7 +83,16 @@ module Switches(
 	end
 endmodule
 
+`ifdef isim
+module Dumpable(input [2:0] r, g, input [1:0] b, input hs, vs, vgaclk);
+endmodule
+`endif
+
 module CoreTop(
+`ifdef isim
+	output reg vgaclk = 0,
+	output reg clk = 0,
+`else
 	input xtal,
 	input [7:0] switches,
 	input [3:0] buttons,
@@ -91,16 +100,31 @@ module CoreTop(
 	output serio,
 	output wire [3:0] digits,
 	output wire [7:0] seven,
+`endif
 	output wire hs, vs,
 	output wire [2:0] r, g,
 	output wire [1:0] b,
 	output wire soundl, soundr);
+
+`ifdef isim
+	always #62 clk <= ~clk;
+	always #100 vgaclk <= ~vgaclk;
+	
+	Dumpable dump(r,g,b,hs,vs,vgaclk);
 	
+	wire [7:0] leds;
+	wire serio;
+	wire [3:0] digits;
+	wire [7:0] seven;
+	wire [7:0] switches = 8'b0;
+	wire [3:0] buttons = 4'b0;
+`else	
 	wire xtalb, clk, vgaclk;
 	IBUFG iclkbuf(.O(xtalb), .I(xtal));
 	CPUDCM dcm (.CLKIN_IN(xtalb), .CLKFX_OUT(clk));
 	pixDCM pixdcm (.CLKIN_IN(xtalb), .CLKFX_OUT(vgaclk));
-	
+`endif
+
 	wire [15:0] addr;	
 	wire [7:0] data;
 	wire wr, rd;
@@ -224,8 +248,8 @@ module CoreTop(
 		.vblank(vblankirq),
 		.lcdc(lcdcirq),
 		.tovf(tmrirq),
-		.serial(0),
-		.buttons(0),
+		.serial(1'b0),
+		.buttons(1'b0),
 		.master(irq),
 		.jaddr(jaddr));
 	
@@ -239,6 +263,8 @@ module CoreTop(
 		.snd_data_r(soundr));
 endmodule
 
+`ifdef verilator
+`else
 module TestBench();
 	reg clk = 1;
 	wire [15:0] addr;
@@ -315,3 +341,4 @@ module TestBench();
 		.switches(switches),
 		.ledout(leds));
 endmodule
+`endif