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Article #10

Re: New 68k? 68025? (16-bit version of 040)

#10
From: Mike Meyer, Real Amigas have key...
Date: Mon, 07 May 1990 18:11
19 lines
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>> >Seriously, could this mean what I think to the Amiga 500 and 2000 owners?
>> >I presume the 4x speed increase you suggest is based on a reduction of
>> >clock cycles/instruction and would thus work fine in a stock Amiga...?
>> 
>>     Not quite that easy, unfortunately.  The interrupt stack frames are
>> different, so you'll need to path the OS.

Already been done for the Amiga. The OS detects and works correctly
with any of the 680[0123]0 processors. Software that does floating
point operations in the system-approved manner also get 6888[12]
suport if the chips are there.

As an aside, 2000 owners probably won't be interested in the chip -
they're better off going to one of the CPU slot '[23]0 boards, so
they'll be able to use 32 bit memory as well as the faster processor.
Since that isn't an option on the 500, the 16-bit version of the
'[23]0 would be an attractive option.

	<mike
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From: mwm@DECWRL.DEC.COM (Mike  Meyer, Real Amigas have keyboard garages)
Newsgroups: comp.sys.m68k.pc
Subject: Re: New 68k? 68025? (16-bit version of 040)
Message-ID: <9005071811.AA12091@raven.pa.dec.com>
Date: 7 May 90 18:11:17 GMT
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