.. code/idea: mborik ..
.. music:     n1k-o  ..
.. ideas:     ellvis ..
'                   .. support:   busy   ..   '

design demo for ZX-Spectrum 128k with
512kB SRAM allram paging on port #17
in supported disk-interfaces:
MB-02+, MB03+ Ultimate, DivIDE+
'        or ZX-Spectrum Next natively!        '