9 Mar
2011
9 Mar
'11
1:30 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: Monday, March 07, 2011 2:20 PM
To: cctalk at classiccmp.org
Subject: Re: hardware multiply/divide functionality in CPUs
What do you mean by 'hardware' multiply and divide? A number of
machines,
I suspect the 6809 is amongst them, had no particualrl hardware for
multiply or divide, but they did have multiply and maybe divide
instrucitons in the instruction setc. These instrucitons were
implemented
by microcode using the normal registers and ALU. Does that count?
The 6809 was not microcoded. -- Ian