Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ucselx!maxc0849
From: maxc0849@ucselx.sdsu.edu (InnerTangent)
Newsgroups: comp.sys.amiga
Subject: AdSpeed (A500 16mhz processor new from ICD)
Keywords: accelerator
Message-ID: <1990Oct21.013920.8600@ucselx.sdsu.edu>
Date: 21 Oct 90 01:39:20 GMT
Organization: San Diego State University Computing Services
Lines: 45


	I just got my "Compute - Special Amiga Edition" and I saw an AD
by ICD's new product line.  There were a flicker removing hardware, a
new SCSI interface for A2000, and (here is) AdSpeed!!!

	Here is the article copied ...
	"  3 new products from ICD "

	(some stuffs here about the "Flicker Free Video")
	
	"ADSpeed (tm)"
ICD expands its line of innovative enhancement products for the Amiga with the
introduction of *AdSpeed*, a full featured 14.3 MHz 68000 accelerator for all
68000-based Amiga computers.  AdSpeed differs from other accelerators by using
an intelligent 16K static RAM cashe to allow zero wait state execution of many 
operations at twice the regular speed.  All programs will show improvement.
AdSpeed will make your Amiga run faster then any 68000 or 68020 accelerator
without on-board RAM.  AdSpeed works with all 68000 based Amiga computers,
including the 500, 1000, and 2000.  Installation is simple and require no
soldering.  AdSpeed has a software selectable true 7.16 MHz 68000 mode for
100% compatibility -- Your computer will run as if the stock CPU was installed.
32K of high speed static RAM is used for 16K of data/instruction cache and
16K of cache tag memory.  A full read and write - through cache provides 
maximum speed.

	(Other stuffs about AdSCSI 2080 <for A2000>) 

	my question are, What does the stuffs in the last two line of the
"AdSpeed"'s introduction saying?  Does the "AdSpeed" use the existing RAM
in the A500 to do the cashe (what does data/instruction cashe and cache tag
memory mean?).

	Also, since the 14MHz processor can only be software switched (??)
between 68000 (7MHz) and 14MHz, what about some autoboot games that won't
let me change it's startup-sequence (if there is one)?  Any side effects
for 14MHz speed (clock? / video? / disk access?) ?

	Thanks in advance for any help. 


-- 

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[]  Only Amiga makes it Possible..  | InnerTangent: maxc0849@ucselx.sdsu.edu  []
[]  Mind is the basis of reality.   | In Real Life: Bill Chiu                 []