[comp.sys.apple] Replacing Processor.

kg5927@BROCK1P.BITNET (Karl Gaston) (04/03/89)

Greetings,

    I am a Apple user for about 6 years, and an owner for about a year
and a half.  I have an un-enhanced ][e and was wondering if it would
be more feasable to replace the 6502 processor with either a 65c02
or a 65802.  I'm sure someone out there has already done this, and I would
greatly appreciate any input..

    If this can be done will my ][e act like an extended ][e or not??

BTW I wish someone would have told me that Shrink It was only written
for extended ]['s, and I was only to find this out after downloading
running it through BINSCII, BLU, and finally seeing what was in the DOC
file... (by the way it sounds like a great program.)

Please reply to me or Info-Apple List..

Thanks....
+--------------------------------------------------+
+  Karl Gaston :                                   +
+  BITNET:  KG5927@BROCK1P.BITNET                  +
+  Disclaimer : I don't need one because I have no +
+   one else to represent!!! /\/\/\/\/\:)          +
+--------------------------------------------------

brianw@microsoft.UUCP (Brian Willoughby) (04/11/89)

Karl Gaston <kg5927@BROCK1P.BITNET> writes:
| and a half.  I have an un-enhanced ][e and was wondering if it would
| be more feasable to replace the 6502 processor with either a 65c02
| or a 65802.  I'm sure someone out there has already done this, and I would

|     If this can be done will my ][e act like an extended ][e or not??

Karl,

The 65C802 fully duplicates the functionality of the 65C02 at powerup, so you
would lose nothing by getting the 802.	To get a fully "enhanced" //e, you also
need the firware ROMs that display Apple //e at powerup (as well as several
other improvements) and the MouseText ROMs to change your display. While you
can do without the MouseText (little boxes, check marks and apple symbols for
the text screen) you MUST have the firmware ROMs because most "enhanced"
software reads ROM memory and checks to see if they are there. i.e. even if
you have a C02 or better, most programs will erroneously assume that the ROM
version indicates whether or not you are enhanced.

Most of this has already been answered on the net, but not completely.


Brian Willoughby                        microsoft!brianw@uunet.UU.NET
                or                      uw-beaver!microsoft!brianw
                or just                 microsoft!brianw