joeloda@aicchi.UUCP (Joseph D. Loda) (02/08/85)
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
cs2532aa@unm-cvax.UUCP (02/11/85)
>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.
cs2534ai@unm-cvax.UUCP (02/11/85)
** 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] --------------------------------------------------------------------------- ::::::::: ___________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 --------------------------------------------------------------------------- "Sea Dragon...Seeeeea Dragon...SEEEEEA DRAGON!"
gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>) (02/11/85)
> 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.)
eve@ssc-bee.UUCP (Michael Eve) (02/13/85)
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