Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83; site tty3b.UUCP
Path: utzoo!linus!philabs!seismo!harpo!floyd!clyde!ihnp4!we13!tty3b!estes
From: estes@tty3b.UUCP (estes)
Newsgroups: net.micro
Subject: Re: 80186 (as in Tandy 2000)
Message-ID: <272@tty3b.UUCP>
Date: Fri, 16-Dec-83 10:05:05 EST
Article-I.D.: tty3b.272
Posted: Fri Dec 16 10:05:05 1983
Date-Received: Sat, 17-Dec-83 07:42:42 EST
Organization: Teletype Corp., Skokie, Ill
Lines: 20

<>
One enhancement not mentioned about the iAPX 186 (aka 80186) is that the
effective address of memory references is calculated in a hardware adder,
as opposed to a microcode routine (as in the iAPX 86 -- 8086).  Intel claims
that an iAPX 186 @ 8MHz is twice as fast as an iAPX 86 @ 5 MHz because of
this.

FYI the iAPX 186 integrates six functions:
	- uProcessor
	- DMA (two channels)
	- timers (three)
	- chip select logic and wait state generator
	- clock generator
	- interrupt controller


Ted Estes
AT&T Teletype Corp.
{we13, mhtsa, ihnp4}!tty3b!estes