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From: Cameron Kaiser
Date: 1999-01-12
Subject: Re: [new uploads+Zx spectrum]
>Well, IMHO processor emulation is far harder work to do...
>AFAIK a base spectrum's CPU clockrate is 3 or 4 Mhz...

Yes, but it's also much more inefficient. Typical Z80 instructions take upwards of 10-12 cycles, while the average 6502 instruction takes around three (faster if you can use zero page). OTOH, the Z80 has nice registers.

--
Cameron Kaiser *** http://calvin.ptloma.edu/~spectre/ *** spectre@ptloma.edu
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