de0-zx-spectrum/spectrum.v

module spectrum(
	input CLOCK_50,
	output wire[7:0] LED
);

reg[13:0]  address;
wire[7:0]  mem_data;
	
rom0 rom(
	.address(address),
	.clock(CLOCK_50),
	.q(mem_data)
);

reg[21:0] counter;
always @(posedge CLOCK_50) 
begin
	counter <= counter + 1;
	if (counter == 0)
		address <= address + 1;
end
assign LED = mem_data;

endmodule