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From: mhs@enmasse.UUCP (Mike Schloss)
Newsgroups: net.arch
Subject: Re: Re: Re: Re: RISC (really on multiplication d
Message-ID: <445@enmasse.UUCP>
Date: Fri, 26-Jul-85 11:18:53 EDT
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Posted: Fri Jul 26 11:18:53 1985
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> > The Decsystem-10 & 20 has an instruction IMUL which does exactly what you
> > want. It Multiplies a 36bit value by another 36 bit value and gives a 36
> > bit result. They also have a divide which divides a 36 bit number.
> 
> For comparison and elucidation, so do:
> 
> 	VAX
> 	PDP-11
> 	National 32016 and family
> 	Motorola 68000, 68020, 6800, 6809, ...
> 	Zilog Z8000
> 	Z80
> 	Intel 8086, 80186, 82086
> 
> 
> Jon Shapiro


I may be missing something but my Motorola 68000 manual says nothing
about 32 bit mults.  Just 16*16 signed and unsigned.  The 68020 does
have 32*32 but I doubt any in the 6800 family do.

					Mike Schloss