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Can a 65C02 be used in an Apple ][? [message #111997] Mon, 16 September 2013 13:31 Go to next message
joeloda is currently offline  joeloda
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Message-ID: <372@aicchi.UUCP>
Date: Fri, 8-Feb-85 00:55:34 EST
Article-I.D.: aicchi.372
Posted: Fri Feb  8 00:55:34 1985
Date-Received: Sat, 9-Feb-85 08:14:10 EST
Distribution: net
Organization: Analysts International Corp; Chicago Branch
Lines: 9

Can a 65C02 microprocessor be used to replace the "standard" 6502 processor
in an Apple ][ or ][+?  If so, are there any problems that may offset the
benefits?  Thanks in advance.

-- 
Joe Loda
Analysts International (Chicago Branch)
(312) 882-4673
..!ihnp4!aicchi!joeloda
Re: Can a 65C02 be used in an Apple ][? [message #112009 is a reply to message #111997] Mon, 16 September 2013 13:31 Go to previous messageGo to next message
cs2532aa is currently offline  cs2532aa
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Message-ID: <240@unm-cvax.UUCP>
Date: Sun, 10-Feb-85 16:09:22 EST
Article-I.D.: unm-cvax.240
Posted: Sun Feb 10 16:09:22 1985
Date-Received: Wed, 13-Feb-85 03:19:38 EST
References: <372@aicchi.UUCP>
Reply-To: cs2532aa@unm-cvax.UUCP (Satan's Employee)
Followup-To: net.micro.apple
Organization: The Spud Patrol - We Monitor Reality
Lines: 43

 > From: joeloda@aicchi.UUCP (Joseph D. Loda)
 > 
 >  Can a 65C02 microprocessor be used to replace the "standard" 6502 processor
 >  in an Apple ][ or ][+?  If so, are there any problems that may offset the
 >  benefits?  Thanks in advance.

This is from issue #16 (latest issue; orange cover) of Hardcore COMPUTIST:

-----
"Who wants a 65C02?"

Hardcore COMPUTIST is planning to make a volume purchase of 65C02 micro-
processors should a sufficient number of readers indicate that they would
like to purchase one of the chips.  The main advantage of a 65C02 is an
enhanced instruction set.

The 65C02 processor from NCR is being used in the Apple //c but can be
substituted for the 6502 in Apple //e's.  Apple ][ and ][ Plus owners can
also utilize the 65C02, but may have to replace two 74LS257 chips on the
motherboard with faster 74F257's (74F257's will also be available for those
who need them).  We plan to purchase the chips from wither NCR or GTE.

If you are interested in a 65C02 for your Apple or compatiable, drop us a
line and let us know what kind of system you have (][, ][ Plus, //e or
Apple-compatiable [please specify brand]).  You will be notified if/when
you may place your order.  The tentative cost for a single chip is under
$10.  Send your letter to:

	Hardcore COMPUTIST
	PO Box 110846C
	Tacoma, WA  98411
-----
Hope this helps...

	.rne.

-----
Real World . . Ernie Longmire / 311 Don St. SE / Los Lunas, NM  87031-9405
UUCP . . . . . {{purdue,cmcl2,ihnp4}!lanl,ucbvax}!unmvax!unm-cvax!cs2532aa
GalactiNet . . 1/MkyWy/r9.844-T00.05'24"-S206.28'49"/3/U.S.AT&T/5058655516
Scotch . . . . Dewars
-----
Thank you . . . Good Night . . . Drive carefully.
Re: Can a 65C02 be used in an Apple ][? [message #112010 is a reply to message #111997] Mon, 16 September 2013 13:31 Go to previous messageGo to next message
gwyn@brl-tgr.ARPA (Do is currently offline  gwyn@brl-tgr.ARPA (Do
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Message-ID: <8238@brl-tgr.ARPA>
Date: Mon, 11-Feb-85 14:56:46 EST
Article-I.D.: brl-tgr.8238
Posted: Mon Feb 11 14:56:46 1985
Date-Received: Wed, 13-Feb-85 03:21:16 EST
References: <> <241@unm-cvax.UUCP>
Distribution: net
Organization: Ballistic Research Lab
Lines: 9

 >  Rumor has it that soon all Apple //e's will be shipped with the new 65C02
 >  microprocessor and the //c ROMs (much improved over the //e ones) as standard
 >  equipment.  Also, you will be able to obtain //c ROMs and 65C02 to install
 >  in your present Apple //e.  Apple has other things on it's mind right now,
 >  so it may be a while yet (several months) before these things come to pass.

Please, the first person to find out how to get the //e upgrade, POST
the information here.  (By the way, the ROMs may not be exactly those used
in the //c, but should be similar in operation.)
Re: Can a 65C02 be used in an Apple ][? [message #112011 is a reply to message #111997] Mon, 16 September 2013 13:31 Go to previous messageGo to next message
cs2534ai is currently offline  cs2534ai
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Message-ID: <241@unm-cvax.UUCP>
Date: Sun, 10-Feb-85 18:46:19 EST
Article-I.D.: unm-cvax.241
Posted: Sun Feb 10 18:46:19 1985
Date-Received: Wed, 13-Feb-85 03:30:32 EST
References: <>
Reply-To: cs2534ai@unm-cvax.UUCP (David Thomas)
Distribution: net
Organization: Univ. of New Mexico, Albuquerque
Lines: 30
Summary: 

** UNABLE TO LOAD PRODOS **

In article <> joeloda@aicchi.UUCP (Joseph D. Loda) writes:

 > Can a 65C02 microprocessor be used to replace the "standard" 6502 processor
 > in an Apple ][ or ][+?  If so, are there any problems that may offset the
 > benefits?  Thanks in advance.

Rumor has it that soon all Apple //e's will be shipped with the new 65C02
microprocessor and the //c ROMs (much improved over the //e ones) as standard
equipment.  Also, you will be able to obtain //c ROMs and 65C02 to install
in your present Apple //e.  Apple has other things on it's mind right now,
so it may be a while yet (several months) before these things come to pass.

This mod applies to the //e only, by the way.

						-DT
					[The Deranged Terrestrial]

---------------------------------------------------------------------------
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___________HOME___________  :::::   :::::  _____________WORK_______________
David B. Thomas		    ::___   ___::  Rocky Mountain Computers (Apple)
1406 Calle Del Ranchero NE  ::\_*|-|_*/::  2109 Wyoming Blvd. NE
Albuquerque, NM  87106	    ::   \_/   ::  Albuquerque, NM  87112
(505) 266-1016		     :  (___)  :   (505) 292-2775 that's 292-APPL
			      :_______:
UUCP:   {{purdue,cmcl2,ihnp4}!lanl,ucbvax}!unmvax!unm-cvax!cs2534ai
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Re: Can a 65C02 be used in an Apple ][? [message #113780 is a reply to message #111997] Tue, 17 September 2013 14:47 Go to previous message
eve is currently offline  eve
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Registered: May 2013
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Message-ID: <289@ssc-bee.UUCP>
Date: Wed, 13-Feb-85 12:30:24 EST
Article-I.D.: ssc-bee.289
Posted: Wed Feb 13 12:30:24 1985
Date-Received: Fri, 15-Feb-85 03:36:38 EST
References: <372@aicchi.UUCP>
Distribution: net
Organization: Boeing Aerospace Co., Seattle, WA
Lines: 19


	Yes.

	A friend replaced the 6502 in his old ][+ with a 65c02 with
	no problems although some say it will not work.  It may
	be a critical timing problem where some chips will work in
	some Apples but not others.

	caveat: Not all 65c02's are created equal.  If you want to
	be Apple compatible, be sure to buy a chip made by the
	same manufacturer (NEC, I believe but check it out) that
	Apple uses.  Different companies have added different
	instructions to the 6502 basic instruction set!

	Best bet may be to buy the chip from your Apple dealer.

-- 
	Mike Eve     Boeing Aerospace, Seattle
	...uw-beaver!ssc-vax!ssc-bee!eve
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