NAME:
orange in border

PROGRAMMER:
Chris Born, Rotterdam , The Netherlands, AD 2020

COMPUTER TYPE:
Sinclair ZX Spectrum 16K and 48K

EXPLANATION:
Its a ZX Spectrum border effect in a 16k model OR in lower memory of a 48k ZX Spectrum.
The ZX Spectrum has NO orange in its colour settings. Yet this is arranged by switching yellow and red at 50HZ (europa has that) and thus a 25 hz orange colour is achieved. it mostly timing after an interrupt that takes aprox 71680 t-state. the border rainbow is the time that the screen its self is writting by the TV-beam-ray. On zx16k thats 'conteded' memory where a command takes twice to triple time.
Its not enough to be a 'demo' so it is a grafic, but wild

!! Its 2x 25 hz so SOME people with a visual problem might not like this changing border effect.

HAVE FUN

Chris
