On Thu, 20 Aug 1998 Philip.Belben_at_powertech.co.uk wrote:
> Jeff wrote:
>
> > Yow!!! That means maybe it will run FLEX! [insert Homer Simpson
> > impersonation]
>
> Could someone please enlighten me... What, pray, is FLEX?
>
> > Woo Hoo!. Dang! I can just imagine running FLEX at 25Mc! Its performance
> > over a 1Mc 6800 must have been blistering!
>
> Warning. Clock speeds may not be comparable. 6800 and friends
> (including 6502) often do more per cycle than 2901s.
>
> That said, the 4052 is a 16 bit system, despite its 8-bit instruction
> set. The data path is 16 bit throughout, it fetches two byte
> instructions in a single memory cycle, etc.
>
> And Tek do claim some quite impressive performance boosts upgrading from
> 4051 to 4052 (average gain they claimed was ten times, I think)
I remember when the 4052 made the scene, and it was dramatically faster
that the 4051!
- don
> > Yikes!! I think I may have seen some boards from a system like that one
> > in a junk heap last week! It used four 2901's eh? Hm, I'm gonna haveto
> > revisit that particular junque pile . . .
>
> Bear in mind Tony Duell's comments - 16 bit systems based around 4 2901s
> used to be common, but may now be worth grabbing anyway.
>
> I must do some more research into the relationship between 4052 and 6800
> instruction sets.
>
> P.
>
>
donm_at_cts.com
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Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
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Received on Thu Aug 20 1998 - 17:57:37 BST