import "primitives/core.futil";
import "primitives/binary_operators.futil";

/**
* Checks to see if the FSM generated for seq activates a component for
* exactly the right amount of time.
* Regression: https://github.com/cucapra/calyx/pull/446
*/

component main() -> () {
  cells {
    @external(1) x = std_mem_d1(32, 1, 1);
    @external(1) y = std_mem_d1(32, 1, 1);
    @external(1) z = std_mem_d1(32, 1, 1);
    mult_pipe0 = std_mult_pipe(32);
  }
  wires {
    group let1<"static"=4> {
      mult_pipe0.left = 32'd10;
      mult_pipe0.right = 32'd20;
      mult_pipe0.go = !mult_pipe0.done ? 1'd1;

      x.write_data = mult_pipe0.out;
      x.addr0 = 1'd0;
      x.write_en = mult_pipe0.done;

      let1[done] = x.done;
    }
    group let2<"static"=4> {
      mult_pipe0.left = 32'd30;
      mult_pipe0.right = 32'd40;
      mult_pipe0.go = !mult_pipe0.done ? 1'd1;

      y.write_data = mult_pipe0.out;
      y.addr0 = 1'd0;
      y.write_en = mult_pipe0.done;

      let2[done] = y.done;
    }
    group let3<"static"=4> {
      mult_pipe0.left = 32'd50;
      mult_pipe0.right = 32'd60;
      mult_pipe0.go = !mult_pipe0.done ? 1'd1;

      z.write_data = mult_pipe0.out;
      z.addr0 = 1'd0;
      z.write_en = mult_pipe0.done;

      let3[done] = z.done;
    }
  }
  control {
    seq {
      let1;
      let2;
      let3;
    }
  }
}