Quick Mode for ZX81, TS1000, TS1500

Author(s): Fred Nachbaur
Pages: 9
Pages: 198x

We’re all used to the FAST vs. SLOW dilemma. In FAST mode, the machine cruises right along, but you can’t see the display. In SLOW mode you have a continuous display, but the overall speed often leaves much to be desired. Well, how about a FULL-SIZE, continuous display, while running almost three times as fast as the normal SLOW mode? You got it! The QUICK-mode routine in this article works with most BASIC or machine-code programs. The exceptions are other programs that already modify the interrupts for custom displays.

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