Superfast Mandelbrot generator v2

It is based on an algorithm published on pouet in 2021. It uses 16 colors and interlaced 256x424 video mode. Generated pictures are 128x256 raster images. It is very likely that this algoritm implementation is the fastest known Mandelbrot set computation routine for the TMS9995. There is another variant of this program which uses non-interlaced 256x212 video mode. This variant shows rotated 256x128 images, it is slower because it uses the VDP less effectively.

The both variants are available on the packed disk image.

There are also fullscreen variants on the disk image:

* 512x212, 16 colors

* 512x424, 16 colors, interlaced

* 256x212, 256 colors

Several samples of fullscreen images are shown below.

512x212, 16 colors

512x424, 16 colors, interlaced

256x212, 256 colors

Sources are available on github.