ERROR: Found error in internal cell \mandelbrot.$lt$projects/mandelbrot/hdl/mandelbrot.v:110$318 ($lt) at kernel/rtlil.cc:734:
  attribute \src "projects/mandelbrot/hdl/mandelbrot.v:110"
  cell $lt $lt$projects/mandelbrot/hdl/mandelbrot.v:110$318
    parameter \Y_WIDTH 1
    parameter \B_WIDTH 32
    parameter \A_WIDTH 32
    parameter \B_SIGNED 0
    parameter \A_SIGNED 1
    connect \Y $lt$projects/mandelbrot/hdl/mandelbrot.v:110$318_Y
    connect \B 32'11111111111111111111111111100000
    connect \A $add$projects/mandelbrot/hdl/mandelbrot.v:110$317_Y
  end