Post #1540123
2026-04-20 01:37 UTC
@apa
Huh - was the Spectrum basic that much less efficient than the ZX81 basic? It's the same processor, clocked a little faster - I would've guess the two should come out about the same(?)
@electron_greg
Replies (1)
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@electron_greg@oldbytes.space 2026-04-20 05:23
@SvenGeier @apa The ZX80 processed without using clock cycles on producing the display. The ZX81 (in default SLOW mode) will be much slower. And I believe it's not possible to select FAST mode on the Spectrum anyway, so the Spectrum will be similar speed. Tho someone needs to do a test on an actual ZX81 default SLOW mode.