The striped Mandelbrot

This is a 1K intro for the Commodore +4 PAL.  It may also be run on the Commodore 16/116 PAL that have 64 KB RAM.  Just run FSI-DEMO.PRG

Features:
    - no borders
    - 32 lines (256 raster lines)
    - static stripes on the overscan area
    - a super fast algo that draws a Mandelbrot set
    - simulates more colors by the color superposition

NOTE: if you are going to use an emulator please use only a good one, YAPE (Microsoft Windows) or PLUS4EMU (any platform).