Path: utzoo!attcan!ncrcan!ziebmef!mdfreed
From: mdfreed@ziebmef.uucp (Mark Freedman)
Newsgroups: comp.sys.ibm.pc
Subject: Re: V20 vs. 8088: Is there any useful difference?
Message-ID: <1989Jul23.082528.823@ziebmef.uucp>
Date: 23 Jul 89 12:25:24 GMT
References: <4644@crash.cts.com>
Reply-To: mdfreed@ziebmef.UUCP (Mark Freedman)
Organization: Ziebmef Public Access Unix, Toronto, Ontario
Lines: 12


(I don't believe you have to reset the V40 to get in and out of protected mode)
  
    That's certainly true. The V40 doesn't HAVE protected mode :-)
   
     I believe that it's the NEC-enhanced equivalent of an 80186. The V20 / V30
also implement some of the 186 / 188 instructions (in effect, 286 real-mode)
such as PUSHA and POPA  (push all registers / pop all registers), which allows
software which DOESN'T have to be portable across various platforms to be 
slightly more efficient (smaller, faster, etc.).
    I have a V20 in my original PC (had problems with the bug in the original
8088 mpu), and consider it $12 well spent.