Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!bu-cs!mirror!necntc!pec
From: pec@necntc.nec.com (Paul Cohen)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: RISC vs CISC
Message-ID: <28384@necntc.nec.com>
Date: 17 Nov 89 15:42:35 GMT
References: <29806@iuvax.cs.indiana.edu> <2192@jato.Jpl.Nasa.Gov>
Reply-To: pec@necntc.UUCP (Paul Cohen)
Distribution: comp.binaries.ibm.pc.d
Organization: NEC Electronics Inc.  Natick, MA 01760
Lines: 22

In Article 5276 of comp.binaries.ibm.pc.d, Kaleb Keithley writes:

> NEC was rumored to be producing a V33, essentially an 8086 with hard 
> coded logic, rather than micro-coded logic.  I don't know if it ever 
> came to be.  But it was thought that it would be blazingly fast compared 
> to an Intel micro-code 8086.  These rumors circulated around the time 
> when NEC was doing legal battle with Intel over Vx0/80x86 copyright/patent 
> infringements, so the death of the Vx3 family may have been because of this.

Rumors of the death of the V33 appear to have been greatly exaggerated!
This part has been in production for some time now and there will soon
be a high integration version (along the lines of the V40/V50/80186)
called the V53.  These parts support dynamic bus sizing.

The formal part number for the V33 is uPD70136, available in three
different packages, in both 12.5 and 16MHz versions. The 16 MHz part
is approximately four times as fast as the 10 MHz V30 with which it is
upward compatible (the V30 is 5% to 10% faster than an 8086 at the same
clock frequency).  It supports a 16 MByte address space through an
internal address translation mechanism (which directly supports LIM 4.0).
A floating point co-processor, the uPD72291, is available which performs
at 500 KFlop's.