68300

Aaron,
 
There is exactly ZERO difference between the CPU32 and the CPU32+ instruction set.
 
The difference is with the external bus structure. 
 
Regards,
 
Charlie

-----Original Message-----
From: Aaron J. Grier [mailto:aaron@...]
Sent: Friday, November 19, 2004 6:29 PM
To: 68300@yahoogroups.com
Subject: [68300] cpu32 vs cpu32+ instruction set


I'm attempting to come up with a canonical breakdown of the various
members of the 68k family by chip vs instruction set.

are the instruction sets for CPU32 and CPU32+ core identical?  I've
never had my hands on a CPU32+ chip, I've only used 68331 (which is
CPU32).

also, am I correct in assuming that any CPU32 or CPU32+ chips are a
complete superset of the original 68000 ISA (instruction set
architecture: instruction set, addressing modes, register set)?

-- 
  Aaron J. Grier  |   Frye Electronics, Tigard, OR   |  aaron@...
  "Note that many bands' backline amps produce levels exceeding OSHA
   standards for industrial facilities.  Yet this is considered normal
   working conditions for musicians.  That's showbiz." -- Scott Dorsey


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