[Coco] CPU speed in MIPS

[coco at yourdvd.net]

Poke &HFFDE,. to put the 3 in the ROM mode. Super Extended BASIC is lost
and the CoCo 2 High-Speed function still doesn't work, but it might help
prove your theory? -r

> -------- Original Message --------
> Subject: Re: [Coco] CPU speed in MIPS
> From: Diego Barizo <diegoba at adinet.com.uy>
> Date: Thu, April 19, 2007 6:59 pm
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> 
> I've got a few numbers from the wikipedia, but most are of "modern"
> CPUs I know about the issues that comparing MIPS present, but I don't
> think that there are many ways to compare computers from the 80s.
> Anyway, I did some BASIC tests, and came up with some unexpected
> results FOR to 10000 A+1 to 5000 ? “A”*1000 Goto next 5000 Gosub
> IF/THEN Average Tandy 1100 7 10 21 5 7 10 10 CoCo2 Poke 11 18 7 8 11
> 30 14.17 CoCo3 Poke 11 16 15 9 13 24 14.67 Vic-20 13 42 20 9 14 32
> 21.67 Apple //c 13 31 21 10 13 32 20 CoCo2 15 24 10 11 15 40 19.17
> CoCo3 22 31 31 19 26 47 29.33 Atari 800XL 24 26 20 20 25 22 22.83
> Model III 27 38 24 21 29 36 29.17 Model 100 32 39 50 20 24 36 33.5
> Surprisingly, the high speed poke turns a sluggish CoCo into a PC
> killer (The T.1100 laptop) The poor rating on the Print test for the
> CoCo 3 is because I used one of the hi-res text modes. But anyway, the
> CoCo3 seems slower than a 2. Might be because the 3 is always in "all
> RAM"? Diego -- Coco mailing list Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco