module Sequencer (
    output reg interrupt, // causes data to be updated
    output reg wdata,     // goes to my consumer
    input clock,          // tick counter
    input [7:0] data,     // describes the current pulse
    input reset           // what it says on the tin
);

reg [6:0] counter;

always @(posedge clock)
begin
    if (reset)
    begin
        counter <= 0;
        interrupt <= 0;
        wdata <= 0;
    end
    else
    begin
        // This matches both pulses (00-7f) and spaces (80).
        // For a space, the counter will roll over back to zero.
        if (counter == data[6:0])
        begin
            counter <= 0;
            interrupt <= 1;
            wdata <= ~data[7]; // 0x80 means no pulse
        end
        else
        begin
            counter <= counter + 7'b1;
            interrupt <= 0;
            wdata <= 0;
        end
    end
end

endmodule