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// For simulation only
module vga_adapter(input logic resetn, input logic clock, input logic [2:0] colour,
input logic [7:0] x, input logic [6:0] y, input logic plot,
output logic [9:0] VGA_R, output logic [9:0] VGA_G, output logic [9:0] VGA_B,
output logic VGA_HS, output logic VGA_VS, output logic VGA_BLANK,
output logic VGA_SYNC, output logic VGA_CLK);
parameter BITS_PER_COLOUR_CHANNEL = 1;
parameter MONOCHROME = "FALSE";
parameter RESOLUTION = "320x240";
parameter BACKGROUND_IMAGE = "background.mif";
parameter USING_DE1 = "FALSE";
always_ff @(posedge clock, negedge resetn) begin
if (!resetn) begin
void'(mti_fli::mti_Cmd("vga::reset"));
end else if (plot) begin
if ((^x === 1'bx) || (^y === 1'bx) || (^colour === 1'bx))
$error("cannot plot undefined values");
else
void'(mti_fli::mti_Cmd($sformatf("vga::plot %d %d %d", x, y, colour)));
end
end
endmodule: vga_adapter
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