Сообщение от
TSL
А, и главное:
"During the development of the ZX Spectrum SE, it was originally planned to replace the ULA (which creates the display) with something a little more advanced. However, it wasn't until nearly a decade later after the ULA was reverse engineered that this actually became possible. ULAplus was finally realized in an FPGA core by Alessandro Dorigatti in February 2011."
Перевожу: данный симпатичный апгрейд никогда не был реализован в железе. (Ну лично мне то пофигу, и штука прикольная...)